diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index 902136bb1..3fac481f3 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -43,6 +43,6 @@ jobs:
         uses: codecov/codecov-action@v4
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
-          directory: ./packages/openapi-ts/coverage
+          directory: ./coverage
           flags: unittests
           fail_ci_if_error: true
diff --git a/package.json b/package.json
index 0a7384f16..9ac53f93f 100644
--- a/package.json
+++ b/package.json
@@ -24,16 +24,17 @@
     "lint": "prettier --check . && eslint .",
     "openapi-ts": "pnpm --filter @hey-api/openapi-ts --",
     "prepare": "husky",
-    "test:coverage": "pnpm --recursive test:coverage",
-    "test:e2e": "pnpm --recursive test:e2e",
-    "test:update": "pnpm --recursive test:update",
-    "test": "pnpm --recursive test",
+    "test": "vitest run --project unit",
+    "test:coverage": "vitest run --project unit --coverage",
+    "test:e2e": "vitest run --project e2e --no-file-parallelism",
+    "test:update": "vitest watch --project unit --update",
     "typecheck": "pnpm --recursive typecheck"
   },
   "engines": {
     "node": "^18.0.0 || >=20.0.0"
   },
   "devDependencies": {
+    "@angular/cli": "17.3.5",
     "@changesets/cli": "2.27.1",
     "@rollup/plugin-commonjs": "25.0.7",
     "@rollup/plugin-terser": "0.4.4",
diff --git a/packages/client-axios/package.json b/packages/client-axios/package.json
index 02a9718bb..4a5b79f89 100644
--- a/packages/client-axios/package.json
+++ b/packages/client-axios/package.json
@@ -41,10 +41,6 @@
     "clean": "rimraf dist coverage node_modules/.cache",
     "dev": "rimraf dist && pnpm build-bundle --watch",
     "prepublishOnly": "pnpm build",
-    "test:coverage": "vitest run --coverage",
-    "test:update": "vitest watch --update",
-    "test:watch": "vitest watch",
-    "test": "vitest run",
     "typecheck": "tsc --noEmit"
   },
   "engines": {
diff --git a/packages/client-axios/vitest.config.ts b/packages/client-axios/vitest.config.ts
deleted file mode 100644
index 0431940e9..000000000
--- a/packages/client-axios/vitest.config.ts
+++ /dev/null
@@ -1,14 +0,0 @@
-import { fileURLToPath } from 'node:url';
-
-import { defineConfig } from 'vitest/config';
-
-export default defineConfig({
-  test: {
-    coverage: {
-      exclude: ['dist', 'src/**/*.d.ts'],
-      include: ['src/**/*.ts'],
-      provider: 'v8',
-    },
-    root: fileURLToPath(new URL('./', import.meta.url)),
-  },
-});
diff --git a/packages/client-core/package.json b/packages/client-core/package.json
index d78ee72dd..f99f7676a 100644
--- a/packages/client-core/package.json
+++ b/packages/client-core/package.json
@@ -28,10 +28,6 @@
     "clean": "rimraf dist coverage node_modules/.cache",
     "dev": "rimraf dist && pnpm build-bundle --watch",
     "prepublishOnly": "pnpm build",
-    "test:coverage": "vitest run --coverage",
-    "test:update": "vitest watch --update",
-    "test:watch": "vitest watch",
-    "test": "vitest run",
     "typecheck": "tsc --noEmit"
   },
   "engines": {
diff --git a/packages/client-core/vitest.config.ts b/packages/client-core/vitest.config.ts
deleted file mode 100644
index 0431940e9..000000000
--- a/packages/client-core/vitest.config.ts
+++ /dev/null
@@ -1,14 +0,0 @@
-import { fileURLToPath } from 'node:url';
-
-import { defineConfig } from 'vitest/config';
-
-export default defineConfig({
-  test: {
-    coverage: {
-      exclude: ['dist', 'src/**/*.d.ts'],
-      include: ['src/**/*.ts'],
-      provider: 'v8',
-    },
-    root: fileURLToPath(new URL('./', import.meta.url)),
-  },
-});
diff --git a/packages/client-fetch/package.json b/packages/client-fetch/package.json
index 4318a7ba7..65393f097 100644
--- a/packages/client-fetch/package.json
+++ b/packages/client-fetch/package.json
@@ -41,10 +41,6 @@
     "clean": "rimraf dist coverage node_modules/.cache",
     "dev": "rimraf dist && pnpm build-bundle --watch",
     "prepublishOnly": "pnpm build",
-    "test:coverage": "vitest run --coverage",
-    "test:update": "vitest watch --update",
-    "test:watch": "vitest watch",
-    "test": "vitest run",
     "typecheck": "tsc --noEmit"
   },
   "engines": {
diff --git a/packages/client-fetch/vitest.config.ts b/packages/client-fetch/vitest.config.ts
deleted file mode 100644
index 0431940e9..000000000
--- a/packages/client-fetch/vitest.config.ts
+++ /dev/null
@@ -1,14 +0,0 @@
-import { fileURLToPath } from 'node:url';
-
-import { defineConfig } from 'vitest/config';
-
-export default defineConfig({
-  test: {
-    coverage: {
-      exclude: ['dist', 'src/**/*.d.ts'],
-      include: ['src/**/*.ts'],
-      provider: 'v8',
-    },
-    root: fileURLToPath(new URL('./', import.meta.url)),
-  },
-});
diff --git a/packages/openapi-ts/package.json b/packages/openapi-ts/package.json
index 51df0cd03..ea8a5cb9a 100644
--- a/packages/openapi-ts/package.json
+++ b/packages/openapi-ts/package.json
@@ -46,12 +46,7 @@
     "clean": "rimraf dist test/generated test/e2e/generated coverage node_modules/.cache",
     "dev": "rimraf dist && pnpm build-bundle --watch",
     "prepublishOnly": "pnpm build",
-    "test:coverage": "vitest run --config vitest.config.unit.ts --coverage",
-    "test:e2e": "vitest run --config vitest.config.e2e.ts",
     "test:sample": "node test/sample.cjs",
-    "test:update": "vitest watch --config vitest.config.unit.ts --update",
-    "test:watch": "vitest watch --config vitest.config.unit.ts",
-    "test": "vitest run --config vitest.config.unit.ts",
     "typecheck": "tsc --noEmit"
   },
   "engines": {
diff --git a/packages/openapi-ts/src/index.spec.ts b/packages/openapi-ts/src/index.spec.ts
index 0aa7b2f0d..e5d64aba5 100644
--- a/packages/openapi-ts/src/index.spec.ts
+++ b/packages/openapi-ts/src/index.spec.ts
@@ -1,21 +1,29 @@
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+
 import { describe, it } from 'vitest';
 
 import { createClient } from './index';
 
+const __dirname = fileURLToPath(new URL('.', import.meta.url));
+
+const v2Spec = path.resolve(__dirname, '../test/spec/v2.json');
+const v3Spec = path.resolve(__dirname, '../test/spec/v3.json');
+
 describe('index', () => {
   it('parses v2 without issues', async () => {
     await createClient({
       dryRun: true,
-      input: './test/spec/v2.json',
-      output: './generated/v2/',
+      input: v2Spec,
+      output: path.resolve(__dirname, '../test/generated/v2/'),
     });
   });
 
   it('parses v3 without issues', async () => {
     await createClient({
       dryRun: true,
-      input: './test/spec/v3.json',
-      output: './generated/v3/',
+      input: v3Spec,
+      output: path.resolve(__dirname, '../test/generated/v3/'),
     });
   });
 
@@ -24,7 +32,7 @@ describe('index', () => {
       dryRun: true,
       input:
         'https://raw.githubusercontent.com/hey-api/openapi-ts/main/packages/openapi-ts/test/spec/v2.json',
-      output: './generated/v2-downloaded/',
+      output: path.resolve(__dirname, '../test/generated/v2-downloaded/'),
     });
   });
 
@@ -33,7 +41,7 @@ describe('index', () => {
       dryRun: true,
       input:
         'https://raw.githubusercontent.com/hey-api/openapi-ts/main/packages/openapi-ts/test/spec/v3.json',
-      output: './generated/v3-downloaded/',
+      output: path.resolve(__dirname, '../test/generated/v3-downloaded/'),
     });
   });
 });
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v2/core/ApiError.ts.snap b/packages/openapi-ts/test/__snapshots__/v2/core/ApiError.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v2/core/ApiError.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v2/core/ApiError.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v2/core/ApiRequestOptions.ts.snap b/packages/openapi-ts/test/__snapshots__/v2/core/ApiRequestOptions.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v2/core/ApiRequestOptions.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v2/core/ApiRequestOptions.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v2/core/ApiResult.ts.snap b/packages/openapi-ts/test/__snapshots__/v2/core/ApiResult.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v2/core/ApiResult.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v2/core/ApiResult.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v2/core/CancelablePromise.ts.snap b/packages/openapi-ts/test/__snapshots__/v2/core/CancelablePromise.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v2/core/CancelablePromise.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v2/core/CancelablePromise.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v2/core/OpenAPI.ts.snap b/packages/openapi-ts/test/__snapshots__/v2/core/OpenAPI.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v2/core/OpenAPI.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v2/core/OpenAPI.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v2/core/request.ts.snap b/packages/openapi-ts/test/__snapshots__/v2/core/request.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v2/core/request.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v2/core/request.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v2/index.ts.snap b/packages/openapi-ts/test/__snapshots__/v2/index.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v2/index.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v2/index.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v2/schemas.gen.ts.snap b/packages/openapi-ts/test/__snapshots__/v2/schemas.gen.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v2/schemas.gen.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v2/schemas.gen.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v2/services.gen.ts.snap b/packages/openapi-ts/test/__snapshots__/v2/services.gen.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v2/services.gen.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v2/services.gen.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v2/types.gen.ts.snap b/packages/openapi-ts/test/__snapshots__/v2/types.gen.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v2/types.gen.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v2/types.gen.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v3/core/ApiError.ts.snap b/packages/openapi-ts/test/__snapshots__/v3/core/ApiError.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v3/core/ApiError.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v3/core/ApiError.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v3/core/ApiRequestOptions.ts.snap b/packages/openapi-ts/test/__snapshots__/v3/core/ApiRequestOptions.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v3/core/ApiRequestOptions.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v3/core/ApiRequestOptions.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v3/core/ApiResult.ts.snap b/packages/openapi-ts/test/__snapshots__/v3/core/ApiResult.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v3/core/ApiResult.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v3/core/ApiResult.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v3/core/CancelablePromise.ts.snap b/packages/openapi-ts/test/__snapshots__/v3/core/CancelablePromise.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v3/core/CancelablePromise.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v3/core/CancelablePromise.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v3/core/OpenAPI.ts.snap b/packages/openapi-ts/test/__snapshots__/v3/core/OpenAPI.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v3/core/OpenAPI.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v3/core/OpenAPI.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v3/core/request.ts.snap b/packages/openapi-ts/test/__snapshots__/v3/core/request.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v3/core/request.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v3/core/request.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v3/index.ts.snap b/packages/openapi-ts/test/__snapshots__/v3/index.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v3/index.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v3/index.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v3/schemas.gen.ts.snap b/packages/openapi-ts/test/__snapshots__/v3/schemas.gen.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v3/schemas.gen.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v3/schemas.gen.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v3/services.gen.ts.snap b/packages/openapi-ts/test/__snapshots__/v3/services.gen.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v3/services.gen.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v3/services.gen.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v3/types.gen.ts.snap b/packages/openapi-ts/test/__snapshots__/v3/types.gen.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v3/types.gen.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v3/types.gen.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v3_angular/core/ApiError.ts.snap b/packages/openapi-ts/test/__snapshots__/v3_angular/core/ApiError.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v3_angular/core/ApiError.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v3_angular/core/ApiError.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v3_angular/core/ApiRequestOptions.ts.snap b/packages/openapi-ts/test/__snapshots__/v3_angular/core/ApiRequestOptions.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v3_angular/core/ApiRequestOptions.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v3_angular/core/ApiRequestOptions.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v3_angular/core/ApiResult.ts.snap b/packages/openapi-ts/test/__snapshots__/v3_angular/core/ApiResult.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v3_angular/core/ApiResult.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v3_angular/core/ApiResult.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v3_angular/core/OpenAPI.ts.snap b/packages/openapi-ts/test/__snapshots__/v3_angular/core/OpenAPI.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v3_angular/core/OpenAPI.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v3_angular/core/OpenAPI.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v3_angular/core/request.ts.snap b/packages/openapi-ts/test/__snapshots__/v3_angular/core/request.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v3_angular/core/request.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v3_angular/core/request.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v3_angular/index.ts.snap b/packages/openapi-ts/test/__snapshots__/v3_angular/index.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v3_angular/index.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v3_angular/index.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v3_angular/services.gen.ts.snap b/packages/openapi-ts/test/__snapshots__/v3_angular/services.gen.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v3_angular/services.gen.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v3_angular/services.gen.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v3_angular/types.gen.ts.snap b/packages/openapi-ts/test/__snapshots__/v3_angular/types.gen.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v3_angular/types.gen.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v3_angular/types.gen.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v3_axios/core/ApiError.ts.snap b/packages/openapi-ts/test/__snapshots__/v3_axios/core/ApiError.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v3_axios/core/ApiError.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v3_axios/core/ApiError.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v3_axios/core/ApiRequestOptions.ts.snap b/packages/openapi-ts/test/__snapshots__/v3_axios/core/ApiRequestOptions.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v3_axios/core/ApiRequestOptions.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v3_axios/core/ApiRequestOptions.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v3_axios/core/ApiResult.ts.snap b/packages/openapi-ts/test/__snapshots__/v3_axios/core/ApiResult.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v3_axios/core/ApiResult.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v3_axios/core/ApiResult.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v3_axios/core/CancelablePromise.ts.snap b/packages/openapi-ts/test/__snapshots__/v3_axios/core/CancelablePromise.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v3_axios/core/CancelablePromise.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v3_axios/core/CancelablePromise.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v3_axios/core/OpenAPI.ts.snap b/packages/openapi-ts/test/__snapshots__/v3_axios/core/OpenAPI.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v3_axios/core/OpenAPI.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v3_axios/core/OpenAPI.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v3_axios/core/request.ts.snap b/packages/openapi-ts/test/__snapshots__/v3_axios/core/request.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v3_axios/core/request.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v3_axios/core/request.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v3_axios/index.ts.snap b/packages/openapi-ts/test/__snapshots__/v3_axios/index.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v3_axios/index.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v3_axios/index.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v3_client/ApiClient.ts.snap b/packages/openapi-ts/test/__snapshots__/v3_client/ApiClient.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v3_client/ApiClient.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v3_client/ApiClient.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v3_client/core/ApiError.ts.snap b/packages/openapi-ts/test/__snapshots__/v3_client/core/ApiError.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v3_client/core/ApiError.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v3_client/core/ApiError.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v3_client/core/ApiRequestOptions.ts.snap b/packages/openapi-ts/test/__snapshots__/v3_client/core/ApiRequestOptions.ts.snap
similarity index 100%
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rename from packages/openapi-ts/test/__snapshots__/test/generated/v3_services_name/services.gen.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v3_services_name/services.gen.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v3_xhr/core/ApiError.ts.snap b/packages/openapi-ts/test/__snapshots__/v3_xhr/core/ApiError.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v3_xhr/core/ApiError.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v3_xhr/core/ApiError.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v3_xhr/core/ApiRequestOptions.ts.snap b/packages/openapi-ts/test/__snapshots__/v3_xhr/core/ApiRequestOptions.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v3_xhr/core/ApiRequestOptions.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v3_xhr/core/ApiRequestOptions.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v3_xhr/core/ApiResult.ts.snap b/packages/openapi-ts/test/__snapshots__/v3_xhr/core/ApiResult.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v3_xhr/core/ApiResult.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v3_xhr/core/ApiResult.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v3_xhr/core/CancelablePromise.ts.snap b/packages/openapi-ts/test/__snapshots__/v3_xhr/core/CancelablePromise.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v3_xhr/core/CancelablePromise.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v3_xhr/core/CancelablePromise.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v3_xhr/core/OpenAPI.ts.snap b/packages/openapi-ts/test/__snapshots__/v3_xhr/core/OpenAPI.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v3_xhr/core/OpenAPI.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v3_xhr/core/OpenAPI.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v3_xhr/core/request.ts.snap b/packages/openapi-ts/test/__snapshots__/v3_xhr/core/request.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v3_xhr/core/request.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v3_xhr/core/request.ts.snap
diff --git a/packages/openapi-ts/test/__snapshots__/test/generated/v3_xhr/index.ts.snap b/packages/openapi-ts/test/__snapshots__/v3_xhr/index.ts.snap
similarity index 100%
rename from packages/openapi-ts/test/__snapshots__/test/generated/v3_xhr/index.ts.snap
rename to packages/openapi-ts/test/__snapshots__/v3_xhr/index.ts.snap
diff --git a/packages/openapi-ts/test/bin.spec.ts b/packages/openapi-ts/test/bin.spec.ts
index 6a4ef235a..e18e78956 100755
--- a/packages/openapi-ts/test/bin.spec.ts
+++ b/packages/openapi-ts/test/bin.spec.ts
@@ -1,14 +1,23 @@
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+
 import { sync } from 'cross-spawn';
 import { describe, expect, it } from 'vitest';
 
+const __dirname = fileURLToPath(new URL('.', import.meta.url));
+
+const bin = path.resolve(__dirname, '../bin/index.cjs');
+const input = path.resolve(__dirname, 'spec/v3.json');
+const output = path.resolve(__dirname, 'generated/bin');
+
 describe('bin', () => {
   it('supports required parameters', () => {
     const result = sync('node', [
-      './bin/index.cjs',
+      bin,
       '--input',
-      './test/spec/v3.json',
+      input,
       '--output',
-      './test/generated/bin',
+      output,
       '--dry-run',
       'true',
     ]);
@@ -18,11 +27,11 @@ describe('bin', () => {
 
   it('generates angular client', () => {
     const result = sync('node', [
-      './bin/index.cjs',
+      bin,
       '--input',
-      './test/spec/v3.json',
+      input,
       '--output',
-      './test/generated/bin',
+      output,
       '--client',
       'angular',
       '--dry-run',
@@ -34,11 +43,11 @@ describe('bin', () => {
 
   it('generates axios client', () => {
     const result = sync('node', [
-      './bin/index.cjs',
+      bin,
       '--input',
-      './test/spec/v3.json',
+      input,
       '--output',
-      './test/generated/bin',
+      output,
       '--client',
       'axios',
       '--dry-run',
@@ -50,11 +59,11 @@ describe('bin', () => {
 
   it('generates fetch client', () => {
     const result = sync('node', [
-      './bin/index.cjs',
+      bin,
       '--input',
-      './test/spec/v3.json',
+      input,
       '--output',
-      './test/generated/bin',
+      output,
       '--client',
       'fetch',
       '--dry-run',
@@ -66,11 +75,11 @@ describe('bin', () => {
 
   it('generates node client', () => {
     const result = sync('node', [
-      './bin/index.cjs',
+      bin,
       '--input',
-      './test/spec/v3.json',
+      input,
       '--output',
-      './test/generated/bin',
+      output,
       '--client',
       'node',
       '--dry-run',
@@ -82,11 +91,11 @@ describe('bin', () => {
 
   it('generates xhr client', () => {
     const result = sync('node', [
-      './bin/index.cjs',
+      bin,
       '--input',
-      './test/spec/v3.json',
+      input,
       '--output',
-      './test/generated/bin',
+      output,
       '--client',
       'xhr',
       '--dry-run',
@@ -98,11 +107,11 @@ describe('bin', () => {
 
   it('supports all parameters', () => {
     const result = sync('node', [
-      './bin/index.cjs',
+      bin,
       '--input',
-      './test/spec/v3.json',
+      input,
       '--output',
-      './test/generated/bin',
+      output,
       '--client',
       'fetch',
       '--useOptions',
@@ -123,11 +132,11 @@ describe('bin', () => {
 
   it('supports regexp parameters', () => {
     const result = sync('node', [
-      './bin/index.cjs',
+      bin,
       '--input',
-      './test/spec/v3.json',
+      input,
       '--output',
-      './test/generated/bin',
+      output,
       '--services',
       '^(Simple|Types)',
       '--types',
@@ -141,11 +150,11 @@ describe('bin', () => {
 
   it('formats output with Prettier', () => {
     const result = sync('node', [
-      './bin/index.cjs',
+      bin,
       '--input',
-      './test/spec/v3.json',
+      input,
       '--output',
-      './test/generated/bin',
+      output,
       '--format',
       'prettier',
     ]);
@@ -155,11 +164,11 @@ describe('bin', () => {
 
   it('lints output with ESLint', () => {
     const result = sync('node', [
-      './bin/index.cjs',
+      bin,
       '--input',
-      './test/spec/v3.json',
+      input,
       '--output',
-      './test/generated/bin',
+      output,
       '--lint',
       'eslint',
     ]);
@@ -168,18 +177,18 @@ describe('bin', () => {
   });
 
   it('throws error without parameters', () => {
-    const result = sync('node', ['./bin/index.cjs', '--dry-run', 'true']);
+    const result = sync('node', [bin, '--dry-run', 'true']);
     expect(result.stdout.toString()).toBe('');
     expect(result.stderr.toString()).toContain('Unexpected error occurred');
   });
 
   it('throws error with wrong parameters', () => {
     const result = sync('node', [
-      './bin/index.cjs',
+      bin,
       '--input',
-      './test/spec/v3.json',
+      input,
       '--output',
-      './test/generated/bin',
+      output,
       '--unknown',
       '--dry-run',
       'true',
@@ -191,12 +200,7 @@ describe('bin', () => {
   });
 
   it('displays help', () => {
-    const result = sync('node', [
-      './bin/index.cjs',
-      '--help',
-      '--dry-run',
-      'true',
-    ]);
+    const result = sync('node', [bin, '--help', '--dry-run', 'true']);
     expect(result.stdout.toString()).toContain(`Usage: openapi-ts [options]`);
     expect(result.stdout.toString()).toContain(`-i, --input <value>`);
     expect(result.stdout.toString()).toContain(`-o, --output <value>`);
@@ -207,11 +211,11 @@ describe('bin', () => {
 describe('cli', () => {
   it('handles false booleans', () => {
     const result = sync('node', [
-      './bin/index.cjs',
+      bin,
       '--input',
-      './test/spec/v3.json',
+      input,
       '--output',
-      './test/generated/bin',
+      output,
       '--debug',
       '--exportCore',
       'false',
@@ -243,11 +247,11 @@ describe('cli', () => {
 
   it('handles true booleans', () => {
     const result = sync('node', [
-      './bin/index.cjs',
+      bin,
       '--input',
-      './test/spec/v3.json',
+      input,
       '--output',
-      './test/generated/bin',
+      output,
       '--debug',
       '--exportCore',
       'true',
@@ -273,11 +277,11 @@ describe('cli', () => {
 
   it('handles optional booleans', () => {
     const result = sync('node', [
-      './bin/index.cjs',
+      bin,
       '--input',
-      './test/spec/v3.json',
+      input,
       '--output',
-      './test/generated/bin',
+      output,
       '--debug',
       '--exportCore',
       '--types',
diff --git a/packages/openapi-ts/test/e2e/client.angular.spec.ts b/packages/openapi-ts/test/e2e/client.angular.e2e.ts
similarity index 100%
rename from packages/openapi-ts/test/e2e/client.angular.spec.ts
rename to packages/openapi-ts/test/e2e/client.angular.e2e.ts
diff --git a/packages/openapi-ts/test/e2e/client.axios.spec.ts b/packages/openapi-ts/test/e2e/client.axios.e2e.ts
similarity index 87%
rename from packages/openapi-ts/test/e2e/client.axios.spec.ts
rename to packages/openapi-ts/test/e2e/client.axios.e2e.ts
index ec7a9a60f..ebcb66f5a 100644
--- a/packages/openapi-ts/test/e2e/client.axios.spec.ts
+++ b/packages/openapi-ts/test/e2e/client.axios.e2e.ts
@@ -1,9 +1,14 @@
+import path from 'node:path'
+import { fileURLToPath } from 'node:url'
+
 import { afterAll, beforeAll, describe, expect, it, vi } from 'vitest'
 
 import { cleanup } from './scripts/cleanup'
 import { compileWithTypescript } from './scripts/compileWithTypescript'
 import { generateClient } from './scripts/generateClient'
 import server from './scripts/server'
+const __dirname = fileURLToPath(new URL('.', import.meta.url));
+const __filename = path.resolve(__dirname, 'generated/client/axios/index.js')
 
 describe('client.axios', () => {
   beforeAll(async () => {
@@ -18,7 +23,7 @@ describe('client.axios', () => {
   })
 
   it('requests token', async () => {
-    const { ApiClient } = await import('./generated/client/axios/index.js')
+    const { ApiClient } = await import(__filename)
     const tokenRequest = vi.fn().mockResolvedValue('MY_TOKEN')
     const client = new ApiClient({
       PASSWORD: undefined,
@@ -32,7 +37,7 @@ describe('client.axios', () => {
   })
 
   it('uses credentials', async () => {
-    const { ApiClient } = await import('./generated/client/axios/index.js')
+    const { ApiClient } = await import(__filename)
     const client = new ApiClient({
       PASSWORD: 'password',
       TOKEN: undefined,
@@ -44,7 +49,7 @@ describe('client.axios', () => {
   })
 
   it('supports complex params', async () => {
-    const { ApiClient } = await import('./generated/client/axios/index.js')
+    const { ApiClient } = await import(__filename)
     const client = new ApiClient()
     // @ts-ignore
     const result = await client.complex.complexTypes({
@@ -58,7 +63,7 @@ describe('client.axios', () => {
   })
 
   it('supports form data', async () => {
-    const { ApiClient } = await import('./generated/client/axios/index.js')
+    const { ApiClient } = await import(__filename)
     const client = new ApiClient()
     // @ts-ignore
     const result = await client.parameters.callWithParameters(
@@ -77,7 +82,7 @@ describe('client.axios', () => {
   it('can abort the request', async () => {
     let error
     try {
-      const { ApiClient } = await import('./generated/client/axios/index.js')
+      const { ApiClient } = await import(__filename)
       const client = new ApiClient()
       const promise = client.simple.getCallWithoutParametersAndResponse()
       setTimeout(() => {
@@ -93,7 +98,7 @@ describe('client.axios', () => {
   it('should throw known error (500)', async () => {
     let error
     try {
-      const { ApiClient } = await import('./generated/client/axios/index.js')
+      const { ApiClient } = await import(__filename)
       const client = new ApiClient()
       await client.error.testErrorCode(500)
     } catch (err) {
@@ -124,7 +129,7 @@ describe('client.axios', () => {
   it('should throw unknown error (599)', async () => {
     let error
     try {
-      const { ApiClient } = await import('./generated/client/axios/index.js')
+      const { ApiClient } = await import(__filename)
       const client = new ApiClient()
       await client.error.testErrorCode(599)
     } catch (err) {
diff --git a/packages/openapi-ts/test/e2e/client.fetch.spec.ts b/packages/openapi-ts/test/e2e/client.fetch.e2e.ts
similarity index 86%
rename from packages/openapi-ts/test/e2e/client.fetch.spec.ts
rename to packages/openapi-ts/test/e2e/client.fetch.e2e.ts
index af5e32291..3fb8cd6de 100644
--- a/packages/openapi-ts/test/e2e/client.fetch.spec.ts
+++ b/packages/openapi-ts/test/e2e/client.fetch.e2e.ts
@@ -1,9 +1,14 @@
+import path from 'node:path'
+import { fileURLToPath } from 'node:url'
+
 import { afterAll, beforeAll, describe, expect, it, vi } from 'vitest'
 
 import { cleanup } from './scripts/cleanup'
 import { compileWithTypescript } from './scripts/compileWithTypescript'
 import { generateClient } from './scripts/generateClient'
 import server from './scripts/server'
+const __dirname = fileURLToPath(new URL('.', import.meta.url));
+const __filename = path.resolve(__dirname, 'generated/client/fetch/index.js')
 
 describe('client.fetch', () => {
   beforeAll(async () => {
@@ -18,7 +23,7 @@ describe('client.fetch', () => {
   })
 
   it('requests token', async () => {
-    const { ApiClient } = await import('./generated/client/fetch/index.js')
+    const { ApiClient } = await import(__filename)
     const tokenRequest = vi.fn().mockResolvedValue('MY_TOKEN')
     const client = new ApiClient({
       PASSWORD: undefined,
@@ -31,7 +36,7 @@ describe('client.fetch', () => {
   })
 
   it('uses credentials', async () => {
-    const { ApiClient } = await import('./generated/client/fetch/index.js')
+    const { ApiClient } = await import(__filename)
     const client = new ApiClient({
       PASSWORD: 'password',
       TOKEN: undefined,
@@ -43,7 +48,7 @@ describe('client.fetch', () => {
   })
 
   it('supports complex params', async () => {
-    const { ApiClient } = await import('./generated/client/fetch/index.js')
+    const { ApiClient } = await import(__filename)
     const client = new ApiClient()
     // @ts-ignore
     const result = await client.complex.complexTypes({
@@ -57,7 +62,7 @@ describe('client.fetch', () => {
   })
 
   it('support form data', async () => {
-    const { ApiClient } = await import('./generated/client/fetch/index.js')
+    const { ApiClient } = await import(__filename)
     const client = new ApiClient()
     // @ts-ignore
     const result = await client.parameters.callWithParameters(
@@ -74,7 +79,7 @@ describe('client.fetch', () => {
   })
 
   it('support blob response data', async () => {
-    const { ApiClient } = await import('./generated/client/fetch/index.js')
+    const { ApiClient } = await import(__filename)
     const client = new ApiClient()
     const result = await client.fileResponse.fileResponse('test')
     expect(result).toBeDefined()
@@ -83,7 +88,7 @@ describe('client.fetch', () => {
   it('can abort the request', async () => {
     let error
     try {
-      const { ApiClient } = await import('./generated/client/fetch/index.js')
+      const { ApiClient } = await import(__filename)
       const client = new ApiClient()
       const promise = client.simple.getCallWithoutParametersAndResponse()
       setTimeout(() => {
@@ -99,7 +104,7 @@ describe('client.fetch', () => {
   it('should throw known error (500)', async () => {
     let error
     try {
-      const { ApiClient } = await import('./generated/client/fetch/index.js')
+      const { ApiClient } = await import(__filename)
       const client = new ApiClient()
       await client.error.testErrorCode(500)
     } catch (err) {
@@ -130,7 +135,7 @@ describe('client.fetch', () => {
   it('should throw unknown error (599)', async () => {
     let error
     try {
-      const { ApiClient } = await import('./generated/client/fetch/index.js')
+      const { ApiClient } = await import(__filename)
       const client = new ApiClient()
       await client.error.testErrorCode(599)
     } catch (err) {
@@ -160,7 +165,7 @@ describe('client.fetch', () => {
   })
 
   it('it should parse query params', async () => {
-    const { ApiClient } = await import('./generated/client/fetch/index.js')
+    const { ApiClient } = await import(__filename)
     const client = new ApiClient()
     const result = await client.parameters.postCallWithOptionalParam({
       page: 0,
diff --git a/packages/openapi-ts/test/e2e/client.node.spec.ts b/packages/openapi-ts/test/e2e/client.node.e2e.ts
similarity index 87%
rename from packages/openapi-ts/test/e2e/client.node.spec.ts
rename to packages/openapi-ts/test/e2e/client.node.e2e.ts
index 27cf2330b..f6e1effc8 100644
--- a/packages/openapi-ts/test/e2e/client.node.spec.ts
+++ b/packages/openapi-ts/test/e2e/client.node.e2e.ts
@@ -1,9 +1,17 @@
+
+
+import path from 'node:path'
+import { fileURLToPath } from 'node:url'
+
 import { afterAll, beforeAll, describe, expect, it, vi } from 'vitest'
 
 import { cleanup } from './scripts/cleanup'
 import { compileWithTypescript } from './scripts/compileWithTypescript'
 import { generateClient } from './scripts/generateClient'
 import server from './scripts/server'
+const __dirname = fileURLToPath(new URL('.', import.meta.url));
+const __filename = path.resolve(__dirname, 'generated/client/node/index.js')
+
 
 describe('client.node', () => {
   beforeAll(async () => {
@@ -18,7 +26,7 @@ describe('client.node', () => {
   })
 
   it('requests token', async () => {
-    const { ApiClient } = await import('./generated/client/node/index.js')
+    const { ApiClient } = await import(__filename)
     const tokenRequest = vi.fn().mockResolvedValue('MY_TOKEN')
     const client = new ApiClient({
       PASSWORD: undefined,
@@ -32,7 +40,7 @@ describe('client.node', () => {
   })
 
   it('uses credentials', async () => {
-    const { ApiClient } = await import('./generated/client/node/index.js')
+    const { ApiClient } = await import(__filename)
     const client = new ApiClient({
       PASSWORD: 'password',
       TOKEN: undefined,
@@ -44,7 +52,7 @@ describe('client.node', () => {
   })
 
   it('supports complex params', async () => {
-    const { ApiClient } = await import('./generated/client/node/index.js')
+    const { ApiClient } = await import(__filename)
     const client = new ApiClient()
     // @ts-ignore
     const result = await client.complex.complexTypes({
@@ -58,7 +66,7 @@ describe('client.node', () => {
   })
 
   it('support form data', async () => {
-    const { ApiClient } = await import('./generated/client/node/index.js')
+    const { ApiClient } = await import(__filename)
     const client = new ApiClient()
     // @ts-ignore
     const result = await client.parameters.callWithParameters(
@@ -77,7 +85,7 @@ describe('client.node', () => {
   it('can abort the request', async () => {
     let error
     try {
-      const { ApiClient } = await import('./generated/client/node/index.js')
+      const { ApiClient } = await import(__filename)
       const client = new ApiClient()
       const promise = client.simple.getCallWithoutParametersAndResponse()
       setTimeout(() => {
@@ -93,7 +101,7 @@ describe('client.node', () => {
   it('should throw known error (500)', async () => {
     let error
     try {
-      const { ApiClient } = await import('./generated/client/node/index.js')
+      const { ApiClient } = await import(__filename)
       const client = new ApiClient()
       await client.error.testErrorCode(500)
     } catch (err) {
@@ -124,7 +132,7 @@ describe('client.node', () => {
   it('should throw unknown error (599)', async () => {
     let error
     try {
-      const { ApiClient } = await import('./generated/client/node/index.js')
+      const { ApiClient } = await import(__filename)
       const client = new ApiClient()
       await client.error.testErrorCode(599)
     } catch (err) {
diff --git a/packages/openapi-ts/test/e2e/client.xhr.spec.ts b/packages/openapi-ts/test/e2e/client.xhr.e2e.ts
similarity index 87%
rename from packages/openapi-ts/test/e2e/client.xhr.spec.ts
rename to packages/openapi-ts/test/e2e/client.xhr.e2e.ts
index da7e0e5bf..71209e778 100644
--- a/packages/openapi-ts/test/e2e/client.xhr.spec.ts
+++ b/packages/openapi-ts/test/e2e/client.xhr.e2e.ts
@@ -1,9 +1,15 @@
+import path from 'node:path'
+import { fileURLToPath } from 'node:url'
+
 import { afterAll, beforeAll, describe, expect, it, vi } from 'vitest'
 
 import { cleanup } from './scripts/cleanup'
 import { compileWithTypescript } from './scripts/compileWithTypescript'
 import { generateClient } from './scripts/generateClient'
 import server from './scripts/server'
+const __dirname = fileURLToPath(new URL('.', import.meta.url));
+const __filename = path.resolve(__dirname, 'generated/client/xhr/index.js')
+
 
 describe.skip('client.xhr', () => {
   beforeAll(async () => {
@@ -18,7 +24,7 @@ describe.skip('client.xhr', () => {
   })
 
   it('requests token', async () => {
-    const { ApiClient } = await import('./generated/client/xhr/index.js')
+    const { ApiClient } = await import(__filename)
     const tokenRequest = vi.fn().mockResolvedValue('MY_TOKEN')
     const client = new ApiClient({
       PASSWORD: undefined,
@@ -31,7 +37,7 @@ describe.skip('client.xhr', () => {
   })
 
   it('uses credentials', async () => {
-    const { ApiClient } = await import('./generated/client/xhr/index.js')
+    const { ApiClient } = await import(__filename)
     const client = new ApiClient({
       PASSWORD: 'password',
       TOKEN: undefined,
@@ -43,7 +49,7 @@ describe.skip('client.xhr', () => {
   })
 
   it('supports complex params', async () => {
-    const { ApiClient } = await import('./generated/client/xhr/index.js')
+    const { ApiClient } = await import(__filename)
     const client = new ApiClient()
     // @ts-ignore
     const result = await client.complex.complexTypes({
@@ -57,7 +63,7 @@ describe.skip('client.xhr', () => {
   })
 
   it('support form data', async () => {
-    const { ApiClient } = await import('./generated/client/xhr/index.js')
+    const { ApiClient } = await import(__filename)
     const client = new ApiClient()
     // @ts-ignore
     const result = await client.parameters.callWithParameters(
@@ -76,7 +82,7 @@ describe.skip('client.xhr', () => {
   it('can abort the request', async () => {
     let error
     try {
-      const { ApiClient } = await import('./generated/client/xhr/index.js')
+      const { ApiClient } = await import(__filename)
       const client = new ApiClient()
       const promise = client.simple.getCallWithoutParametersAndResponse()
       setTimeout(() => {
@@ -92,7 +98,7 @@ describe.skip('client.xhr', () => {
   it('should throw known error (500)', async () => {
     let error
     try {
-      const { ApiClient } = await import('./generated/client/xhr/index.js')
+      const { ApiClient } = await import(__filename)
       const client = new ApiClient()
       await client.error.testErrorCode(500)
     } catch (err) {
@@ -123,7 +129,7 @@ describe.skip('client.xhr', () => {
   it('should throw unknown error (599)', async () => {
     let error
     try {
-      const { ApiClient } = await import('./generated/client/xhr/index.js')
+      const { ApiClient } = await import(__filename)
       const client = new ApiClient()
       await client.error.testErrorCode(599)
     } catch (err) {
diff --git a/packages/openapi-ts/test/e2e/scripts/angular.ts b/packages/openapi-ts/test/e2e/scripts/angular.ts
index 0f0f74d73..a8e748b69 100644
--- a/packages/openapi-ts/test/e2e/scripts/angular.ts
+++ b/packages/openapi-ts/test/e2e/scripts/angular.ts
@@ -1,10 +1,13 @@
 import { mkdirSync, rmSync } from 'node:fs'
 import path from 'node:path'
+import { fileURLToPath } from 'node:url';
 
 import { sync } from 'cross-spawn'
 
+const __dirname = fileURLToPath(new URL('.', import.meta.url));
+
 export const createAngularProject = (dir: string, name: string) => {
-  const cwd = `./test/e2e/generated/${dir}/`
+  const cwd = path.resolve(__dirname, `../generated/${dir}/`)
   mkdirSync(cwd, {
     recursive: true
   })
@@ -34,12 +37,13 @@ export const createAngularProject = (dir: string, name: string) => {
       '--force'
     ],
     {
-      cwd: path.resolve(cwd),
+      cwd,
       stdio: 'inherit'
     }
   )
   rmSync(`${cwd}/${name}/src/app/`, {
-    recursive: true
+    force: true,
+    recursive: true,
   })
 }
 
@@ -48,7 +52,7 @@ export const buildAngularProject = (
   name: string,
   output: string
 ) => {
-  const cwd = `./test/e2e/generated/${dir}/${name}/`
+  const cwd = path.resolve(__dirname, `../generated/${dir}/${name}/`)
   sync(
     'ng',
     [
@@ -63,7 +67,7 @@ export const buildAngularProject = (
       'false'
     ],
     {
-      cwd: path.resolve(cwd),
+      cwd,
       stdio: 'inherit'
     }
   )
diff --git a/packages/openapi-ts/test/e2e/scripts/cleanup.ts b/packages/openapi-ts/test/e2e/scripts/cleanup.ts
index 716aa290e..ee9b90236 100644
--- a/packages/openapi-ts/test/e2e/scripts/cleanup.ts
+++ b/packages/openapi-ts/test/e2e/scripts/cleanup.ts
@@ -1,7 +1,11 @@
 import { rmSync } from 'node:fs'
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+const __dirname = fileURLToPath(new URL('.', import.meta.url));
 
 export const cleanup = (dir: string) => {
-  rmSync(`./test/e2e/generated/${dir}/`, {
+  rmSync(path.resolve(__dirname, `../generated/${dir}/`), {
     force: true,
     recursive: true
   })
diff --git a/packages/openapi-ts/test/e2e/scripts/compileWithTypescript.ts b/packages/openapi-ts/test/e2e/scripts/compileWithTypescript.ts
index 2b9f8cc6e..10a11cdac 100644
--- a/packages/openapi-ts/test/e2e/scripts/compileWithTypescript.ts
+++ b/packages/openapi-ts/test/e2e/scripts/compileWithTypescript.ts
@@ -1,4 +1,5 @@
 import path from 'node:path'
+import { fileURLToPath } from 'node:url';
 
 import { EOL } from 'os'
 import {
@@ -11,8 +12,10 @@ import {
   sys
 } from 'typescript'
 
+const __dirname = fileURLToPath(new URL('.', import.meta.url));
+
 export const compileWithTypescript = (dir: string) => {
-  const cwd = `./test/e2e/generated/${dir}/`
+  const cwd = path.resolve(__dirname, `../generated/${dir}/`)
   const tsconfig = {
     compilerOptions: {
       allowSyntheticDefaultImports: true,
diff --git a/packages/openapi-ts/test/e2e/scripts/copyAsset.ts b/packages/openapi-ts/test/e2e/scripts/copyAsset.ts
index 8a8af5140..dc5db31f4 100644
--- a/packages/openapi-ts/test/e2e/scripts/copyAsset.ts
+++ b/packages/openapi-ts/test/e2e/scripts/copyAsset.ts
@@ -1,8 +1,12 @@
 import { copyFileSync } from 'node:fs'
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
+
+const __dirname = fileURLToPath(new URL('.', import.meta.url));
 
 export const copyAsset = (fileNameIn: string, fileNameOut: string) => {
   copyFileSync(
-    `./test/e2e/assets/${fileNameIn}`,
-    `./test/e2e/generated/${fileNameOut}`
+    path.resolve(__dirname, `../assets/${fileNameIn}`),
+    path.resolve(__dirname, `../generated/${fileNameOut}`),
   )
 }
diff --git a/packages/openapi-ts/test/e2e/scripts/generateClient.ts b/packages/openapi-ts/test/e2e/scripts/generateClient.ts
index e2a65dc89..3a8379ae0 100644
--- a/packages/openapi-ts/test/e2e/scripts/generateClient.ts
+++ b/packages/openapi-ts/test/e2e/scripts/generateClient.ts
@@ -1,6 +1,11 @@
+import path from 'path';
+import { fileURLToPath } from 'url';
+
 import { createClient } from '../../../'
 import type { Config } from '../../../src/types/config'
 
+const __dirname = fileURLToPath(new URL('.', import.meta.url));
+
 export const generateClient = async (
   dir: string,
   version: string,
@@ -10,9 +15,9 @@ export const generateClient = async (
 ) => {
   await createClient({
     client,
-    input: `./test/spec/${version}.json`,
+    input: path.resolve(__dirname, `../../spec/${version}.json`),
     name,
-    output: `./test/e2e/generated/${dir}/`,
+    output: path.resolve(__dirname, `../generated/${dir}/`),
     useOptions
   })
 }
diff --git a/packages/openapi-ts/test/e2e/scripts/server.ts b/packages/openapi-ts/test/e2e/scripts/server.ts
index 261630fe8..fad0550cc 100644
--- a/packages/openapi-ts/test/e2e/scripts/server.ts
+++ b/packages/openapi-ts/test/e2e/scripts/server.ts
@@ -1,8 +1,11 @@
 import { Server } from 'node:http'
 import path from 'node:path'
+import { fileURLToPath } from 'node:url';
 
 import express, { Express } from 'express'
 
+const __dirname = fileURLToPath(new URL('.', import.meta.url));
+
 let _app: Express
 let _server: Server
 
@@ -15,7 +18,7 @@ const start = async (dir: string) =>
     // and all other relative paths are resolved from that file.
     _app.use(
       '/js',
-      express.static(`./test/e2e/generated/${dir}/`, {
+      express.static(path.resolve(__dirname, `../generated/${dir}/`), {
         extensions: ['', 'js'],
         index: 'index.js'
       })
@@ -23,7 +26,7 @@ const start = async (dir: string) =>
 
     _app.use(
       '/js',
-      express.static(`./test/e2e/generated/${dir}/`, {
+      express.static(path.resolve(__dirname, `../generated/${dir}/`), {
         extensions: ['', 'js'],
         index: 'index.js'
       })
@@ -31,25 +34,25 @@ const start = async (dir: string) =>
 
     // Serve static assets
     _app.get('/runtime.js', (req, res) => {
-      res.sendFile(path.resolve(`./test/e2e/generated/${dir}/runtime.js`))
+      res.sendFile(path.resolve(__dirname, `../generated/${dir}/runtime.js`))
     })
     _app.get('/polyfills.js', (req, res) => {
-      res.sendFile(path.resolve(`./test/e2e/generated/${dir}/polyfills.js`))
+      res.sendFile(path.resolve(__dirname, `../generated/${dir}/polyfills.js`))
     })
     _app.get('/vendor.js', (req, res) => {
-      res.sendFile(path.resolve(`./test/e2e/generated/${dir}/vendor.js`))
+      res.sendFile(path.resolve(__dirname, `../generated/${dir}/vendor.js`))
     })
     _app.get('/main.js', (req, res) => {
-      res.sendFile(path.resolve(`./test/e2e/generated/${dir}/main.js`))
+      res.sendFile(path.resolve(__dirname, `../generated/${dir}/main.js`))
     })
     _app.get('/styles.css', (req, res) => {
-      res.sendFile(path.resolve(`./test/e2e/generated/${dir}/styles.css`))
+      res.sendFile(path.resolve(__dirname, `../generated/${dir}/styles.css`))
     })
     _app.get('/favicon.ico', (req, res) => {
-      res.sendFile(path.resolve(`./test/e2e/generated/${dir}/favicon.ico`))
+      res.sendFile(path.resolve(__dirname, `../generated/${dir}/favicon.ico`))
     })
     _app.get('/', (req, res) => {
-      res.sendFile(path.resolve(`./test/e2e/generated/${dir}/index.html`))
+      res.sendFile(path.resolve(__dirname, `../generated/${dir}/index.html`))
     })
 
     // Register an 'echo' server for testing error codes. This will just grab the
diff --git a/packages/openapi-ts/test/e2e/v2.angular.spec.ts b/packages/openapi-ts/test/e2e/v2.angular.e2e.ts
similarity index 100%
rename from packages/openapi-ts/test/e2e/v2.angular.spec.ts
rename to packages/openapi-ts/test/e2e/v2.angular.e2e.ts
diff --git a/packages/openapi-ts/test/e2e/v2.axios.spec.ts b/packages/openapi-ts/test/e2e/v2.axios.e2e.ts
similarity index 81%
rename from packages/openapi-ts/test/e2e/v2.axios.spec.ts
rename to packages/openapi-ts/test/e2e/v2.axios.e2e.ts
index f482cde18..4b8ca6a57 100644
--- a/packages/openapi-ts/test/e2e/v2.axios.spec.ts
+++ b/packages/openapi-ts/test/e2e/v2.axios.e2e.ts
@@ -1,9 +1,15 @@
+import path from 'node:path'
+import { fileURLToPath } from 'node:url'
+
 import { afterAll, beforeAll, describe, expect, it, vi } from 'vitest'
 
 import { cleanup } from './scripts/cleanup'
 import { compileWithTypescript } from './scripts/compileWithTypescript'
 import { generateClient } from './scripts/generateClient'
 import server from './scripts/server'
+const __dirname = fileURLToPath(new URL('.', import.meta.url));
+const __filename = path.resolve(__dirname, 'generated/v2/axios/index.js')
+
 
 describe('v2.axios', () => {
   beforeAll(async () => {
@@ -18,9 +24,7 @@ describe('v2.axios', () => {
   })
 
   it('requests token', async () => {
-    const { OpenAPI, SimpleService } = await import(
-      './generated/v2/axios/index.js'
-    )
+    const { OpenAPI, SimpleService } = await import(__filename)
     const tokenRequest = vi.fn().mockResolvedValue('MY_TOKEN')
     OpenAPI.TOKEN = tokenRequest
     const result = await SimpleService.getCallWithoutParametersAndResponse()
@@ -30,7 +34,7 @@ describe('v2.axios', () => {
   })
 
   it('supports complex params', async () => {
-    const { ComplexService } = await import('./generated/v2/axios/index.js')
+    const { ComplexService } = await import(__filename)
     const result = await ComplexService.complexTypes({
       // @ts-ignore
       first: {
@@ -56,14 +60,14 @@ describe('v2.axios useOptions', () => {
   })
 
   it('returns result body by default', async () => {
-    const { SimpleService } = await import('./generated/v2/axios/index.js')
+    const { SimpleService } = await import(__filename)
     const result = await SimpleService.getCallWithoutParametersAndResponse()
     // @ts-ignore
     expect(result.body).toBeUndefined()
   })
 
   it('returns result body', async () => {
-    const { SimpleService } = await import('./generated/v2/axios/index.js')
+    const { SimpleService } = await import(__filename)
     // @ts-ignore
     const result = await SimpleService.getCallWithoutParametersAndResponse({
       _result: 'body'
@@ -74,7 +78,7 @@ describe('v2.axios useOptions', () => {
 
   it('returns raw result', async ({ skip }) => {
     skip()
-    const { SimpleService } = await import('./generated/v2/axios/index.js')
+    const { SimpleService } = await import(__filename)
     // @ts-ignore
     const result = await SimpleService.getCallWithoutParametersAndResponse({
       _result: 'raw'
diff --git a/packages/openapi-ts/test/e2e/v2.fetch.spec.ts b/packages/openapi-ts/test/e2e/v2.fetch.e2e.ts
similarity index 80%
rename from packages/openapi-ts/test/e2e/v2.fetch.spec.ts
rename to packages/openapi-ts/test/e2e/v2.fetch.e2e.ts
index 345cf114b..45a74650a 100644
--- a/packages/openapi-ts/test/e2e/v2.fetch.spec.ts
+++ b/packages/openapi-ts/test/e2e/v2.fetch.e2e.ts
@@ -1,9 +1,15 @@
+import path from 'node:path'
+import { fileURLToPath } from 'node:url'
+
 import { afterAll, beforeAll, describe, expect, it, vi } from 'vitest'
 
 import { cleanup } from './scripts/cleanup'
 import { compileWithTypescript } from './scripts/compileWithTypescript'
 import { generateClient } from './scripts/generateClient'
 import server from './scripts/server'
+const __dirname = fileURLToPath(new URL('.', import.meta.url));
+const __filename = path.resolve(__dirname, 'generated/v2/fetch/index.js')
+
 
 describe('v2.fetch', () => {
   beforeAll(async () => {
@@ -18,9 +24,7 @@ describe('v2.fetch', () => {
   })
 
   it('requests token', async () => {
-    const { OpenAPI, SimpleService } = await import(
-      './generated/v2/fetch/index.js'
-    )
+    const { OpenAPI, SimpleService } = await import(__filename)
     const tokenRequest = vi.fn().mockResolvedValue('MY_TOKEN')
     OpenAPI.TOKEN = tokenRequest
     const result = await SimpleService.getCallWithoutParametersAndResponse()
@@ -29,7 +33,7 @@ describe('v2.fetch', () => {
   })
 
   it('supports complex params', async () => {
-    const { ComplexService } = await import('./generated/v2/fetch/index.js')
+    const { ComplexService } = await import(__filename)
     const result = await ComplexService.complexTypes({
       // @ts-ignore
       first: {
@@ -55,14 +59,14 @@ describe('v2.fetch useOptions', () => {
   })
 
   it('returns result body by default', async () => {
-    const { SimpleService } = await import('./generated/v2/fetch/index.js')
+    const { SimpleService } = await import(__filename)
     const result = await SimpleService.getCallWithoutParametersAndResponse()
     // @ts-ignore
     expect(result.body).toBeUndefined()
   })
 
   it('returns result body', async () => {
-    const { SimpleService } = await import('./generated/v2/fetch/index.js')
+    const { SimpleService } = await import(__filename)
     // @ts-ignore
     const result = await SimpleService.getCallWithoutParametersAndResponse({
       _result: 'body'
@@ -73,7 +77,7 @@ describe('v2.fetch useOptions', () => {
 
   it('returns raw result', async ({ skip }) => {
     skip()
-    const { SimpleService } = await import('./generated/v2/fetch/index.js')
+    const { SimpleService } = await import(__filename)
     // @ts-ignore
     const result = await SimpleService.getCallWithoutParametersAndResponse({
       _result: 'raw'
diff --git a/packages/openapi-ts/test/e2e/v2.node.spec.ts b/packages/openapi-ts/test/e2e/v2.node.e2e.ts
similarity index 81%
rename from packages/openapi-ts/test/e2e/v2.node.spec.ts
rename to packages/openapi-ts/test/e2e/v2.node.e2e.ts
index 2a4011311..314af3f4b 100644
--- a/packages/openapi-ts/test/e2e/v2.node.spec.ts
+++ b/packages/openapi-ts/test/e2e/v2.node.e2e.ts
@@ -1,9 +1,14 @@
+import path from 'node:path'
+import { fileURLToPath } from 'node:url'
+
 import { afterAll, beforeAll, describe, expect, it, vi } from 'vitest'
 
 import { cleanup } from './scripts/cleanup'
 import { compileWithTypescript } from './scripts/compileWithTypescript'
 import { generateClient } from './scripts/generateClient'
 import server from './scripts/server'
+const __dirname = fileURLToPath(new URL('.', import.meta.url));
+const __filename = path.resolve(__dirname, 'generated/v2/node/index.js')
 
 describe('v2.node', () => {
   beforeAll(async () => {
@@ -18,9 +23,7 @@ describe('v2.node', () => {
   })
 
   it('requests token', async () => {
-    const { OpenAPI, SimpleService } = await import(
-      './generated/v2/node/index.js'
-    )
+    const { OpenAPI, SimpleService } = await import(__filename)
     const tokenRequest = vi.fn().mockResolvedValue('MY_TOKEN')
     OpenAPI.TOKEN = tokenRequest
     const result = await SimpleService.getCallWithoutParametersAndResponse()
@@ -30,7 +33,7 @@ describe('v2.node', () => {
   })
 
   it('supports complex params', async () => {
-    const { ComplexService } = await import('./generated/v2/node/index.js')
+    const { ComplexService } = await import(__filename)
     const result = await ComplexService.complexTypes({
       // @ts-ignore
       first: {
@@ -45,7 +48,7 @@ describe('v2.node', () => {
   it('can abort the request', async () => {
     let error
     try {
-      const { SimpleService } = await import('./generated/v2/node/index.js')
+      const { SimpleService } = await import(__filename)
       const promise = SimpleService.getCallWithoutParametersAndResponse()
       setTimeout(() => {
         promise.cancel()
@@ -71,14 +74,14 @@ describe('v2.node useOptions', () => {
   })
 
   it('returns result body by default', async () => {
-    const { SimpleService } = await import('./generated/v2/node/index.js')
+    const { SimpleService } = await import(__filename)
     const result = await SimpleService.getCallWithoutParametersAndResponse()
     // @ts-ignore
     expect(result.body).toBeUndefined()
   })
 
   it('returns result body', async () => {
-    const { SimpleService } = await import('./generated/v2/node/index.js')
+    const { SimpleService } = await import(__filename)
     // @ts-ignore
     const result = await SimpleService.getCallWithoutParametersAndResponse({
       _result: 'body'
@@ -89,7 +92,7 @@ describe('v2.node useOptions', () => {
 
   it('returns raw result', async ({ skip }) => {
     skip()
-    const { SimpleService } = await import('./generated/v2/node/index.js')
+    const { SimpleService } = await import(__filename)
     // @ts-ignore
     const result = await SimpleService.getCallWithoutParametersAndResponse({
       _result: 'raw'
diff --git a/packages/openapi-ts/test/e2e/v2.xhr.spec.ts b/packages/openapi-ts/test/e2e/v2.xhr.e2e.ts
similarity index 80%
rename from packages/openapi-ts/test/e2e/v2.xhr.spec.ts
rename to packages/openapi-ts/test/e2e/v2.xhr.e2e.ts
index 7ad7b1f6f..635c20fce 100644
--- a/packages/openapi-ts/test/e2e/v2.xhr.spec.ts
+++ b/packages/openapi-ts/test/e2e/v2.xhr.e2e.ts
@@ -1,9 +1,15 @@
+import path from 'node:path'
+import { fileURLToPath } from 'node:url'
+
 import { afterAll, beforeAll, describe, expect, it, vi } from 'vitest'
 
 import { cleanup } from './scripts/cleanup'
 import { compileWithTypescript } from './scripts/compileWithTypescript'
 import { generateClient } from './scripts/generateClient'
 import server from './scripts/server'
+const __dirname = fileURLToPath(new URL('.', import.meta.url));
+const __filename = path.resolve(__dirname, 'generated/v2/xhr/index.js')
+
 
 describe.skip('v2.xhr', () => {
   beforeAll(async () => {
@@ -18,9 +24,7 @@ describe.skip('v2.xhr', () => {
   })
 
   it('requests token', async () => {
-    const { OpenAPI, SimpleService } = await import(
-      './generated/v2/xhr/index.js'
-    )
+    const { OpenAPI, SimpleService } = await import(__filename)
     const tokenRequest = vi.fn().mockResolvedValue('MY_TOKEN')
     OpenAPI.TOKEN = tokenRequest
     const result = await SimpleService.getCallWithoutParametersAndResponse()
@@ -29,7 +33,7 @@ describe.skip('v2.xhr', () => {
   })
 
   it('supports complex params', async () => {
-    const { ComplexService } = await import('./generated/v2/xhr/index.js')
+    const { ComplexService } = await import(__filename)
     const result = await ComplexService.complexTypes({
       // @ts-ignore
       first: {
@@ -55,14 +59,14 @@ describe.skip('v2.xhr useOptions', () => {
   })
 
   it('returns result body by default', async () => {
-    const { SimpleService } = await import('./generated/v2/xhr/index.js')
+    const { SimpleService } = await import(__filename)
     const result = await SimpleService.getCallWithoutParametersAndResponse()
     // @ts-ignore
     expect(result.body).toBeUndefined()
   })
 
   it('returns result body', async () => {
-    const { SimpleService } = await import('./generated/v2/xhr/index.js')
+    const { SimpleService } = await import(__filename)
     // @ts-ignore
     const result = await SimpleService.getCallWithoutParametersAndResponse({
       _result: 'body'
@@ -73,7 +77,7 @@ describe.skip('v2.xhr useOptions', () => {
 
   it('returns raw result', async ({ skip }) => {
     skip()
-    const { SimpleService } = await import('./generated/v2/xhr/index.js')
+    const { SimpleService } = await import(__filename)
     // @ts-ignore
     const result = await SimpleService.getCallWithoutParametersAndResponse({
       _result: 'raw'
diff --git a/packages/openapi-ts/test/e2e/v3.angular.spec.ts b/packages/openapi-ts/test/e2e/v3.angular.e2e.ts
similarity index 100%
rename from packages/openapi-ts/test/e2e/v3.angular.spec.ts
rename to packages/openapi-ts/test/e2e/v3.angular.e2e.ts
diff --git a/packages/openapi-ts/test/e2e/v3.axios.spec.ts b/packages/openapi-ts/test/e2e/v3.axios.e2e.ts
similarity index 85%
rename from packages/openapi-ts/test/e2e/v3.axios.spec.ts
rename to packages/openapi-ts/test/e2e/v3.axios.e2e.ts
index 311db4c27..3d6720a4d 100644
--- a/packages/openapi-ts/test/e2e/v3.axios.spec.ts
+++ b/packages/openapi-ts/test/e2e/v3.axios.e2e.ts
@@ -1,9 +1,15 @@
+import path from 'node:path'
+import { fileURLToPath } from 'node:url'
+
 import { afterAll, beforeAll, describe, expect, it, vi } from 'vitest'
 
 import { cleanup } from './scripts/cleanup'
 import { compileWithTypescript } from './scripts/compileWithTypescript'
 import { generateClient } from './scripts/generateClient'
 import server from './scripts/server'
+const __dirname = fileURLToPath(new URL('.', import.meta.url));
+const __filename = path.resolve(__dirname, 'generated/v3/axios/index.js')
+
 
 describe('v3.axios', () => {
   beforeAll(async () => {
@@ -18,9 +24,7 @@ describe('v3.axios', () => {
   })
 
   it('requests token', async () => {
-    const { OpenAPI, SimpleService } = await import(
-      './generated/v3/axios/index.js'
-    )
+    const { OpenAPI, SimpleService } = await import(__filename)
     const tokenRequest = vi.fn().mockResolvedValue('MY_TOKEN')
     OpenAPI.TOKEN = tokenRequest
     OpenAPI.USERNAME = undefined
@@ -32,9 +36,7 @@ describe('v3.axios', () => {
   })
 
   it('uses credentials', async () => {
-    const { OpenAPI, SimpleService } = await import(
-      './generated/v3/axios/index.js'
-    )
+    const { OpenAPI, SimpleService } = await import(__filename)
     OpenAPI.TOKEN = undefined
     OpenAPI.USERNAME = 'username'
     OpenAPI.PASSWORD = 'password'
@@ -44,7 +46,7 @@ describe('v3.axios', () => {
   })
 
   it('supports complex params', async () => {
-    const { ComplexService } = await import('./generated/v3/axios/index.js')
+    const { ComplexService } = await import(__filename)
     const result = await ComplexService.complexTypes({
       // @ts-ignore
       first: {
@@ -57,7 +59,7 @@ describe('v3.axios', () => {
   })
 
   it('supports form data', async () => {
-    const { ParametersService } = await import('./generated/v3/axios/index.js')
+    const { ParametersService } = await import(__filename)
     // @ts-ignore
     const result = await ParametersService.callWithParameters(
       'valueHeader',
@@ -76,7 +78,7 @@ describe('v3.axios', () => {
   it('can abort the request', async () => {
     let error
     try {
-      const { SimpleService } = await import('./generated/v3/axios/index.js')
+      const { SimpleService } = await import(__filename)
       const promise = SimpleService.getCallWithoutParametersAndResponse()
       setTimeout(() => {
         promise.cancel()
@@ -91,7 +93,7 @@ describe('v3.axios', () => {
   it('should throw known error (500)', async () => {
     let error
     try {
-      const { ErrorService } = await import('./generated/v3/axios/index.js')
+      const { ErrorService } = await import(__filename)
       // @ts-ignore
       await ErrorService.testErrorCode(500)
     } catch (err) {
@@ -122,7 +124,7 @@ describe('v3.axios', () => {
   it('should throw unknown error (599)', async () => {
     let error
     try {
-      const { ErrorService } = await import('./generated/v3/axios/index.js')
+      const { ErrorService } = await import(__filename)
       // @ts-ignore
       await ErrorService.testErrorCode(599)
     } catch (err) {
@@ -152,7 +154,7 @@ describe('v3.axios', () => {
   })
 
   it('it should parse query params', async () => {
-    const { ParametersService } = await import('./generated/v3/axios/index.js')
+    const { ParametersService } = await import(__filename)
     const result = await ParametersService.postCallWithOptionalParam({
       // @ts-ignore
       page: 0,
@@ -179,14 +181,14 @@ describe('v3.axios useOptions', () => {
   })
 
   it('returns result body by default', async () => {
-    const { SimpleService } = await import('./generated/v3/axios/index.js')
+    const { SimpleService } = await import(__filename)
     const result = await SimpleService.getCallWithoutParametersAndResponse()
     // @ts-ignore
     expect(result.body).toBeUndefined()
   })
 
   it('returns result body', async () => {
-    const { SimpleService } = await import('./generated/v3/axios/index.js')
+    const { SimpleService } = await import(__filename)
     // @ts-ignore
     const result = await SimpleService.getCallWithoutParametersAndResponse({
       _result: 'body'
@@ -197,7 +199,7 @@ describe('v3.axios useOptions', () => {
 
   it('returns raw result', async ({ skip }) => {
     skip()
-    const { SimpleService } = await import('./generated/v3/axios/index.js')
+    const { SimpleService } = await import(__filename)
     // @ts-ignore
     const result = await SimpleService.getCallWithoutParametersAndResponse({
       _result: 'raw'
diff --git a/packages/openapi-ts/test/e2e/v3.fetch.spec.ts b/packages/openapi-ts/test/e2e/v3.fetch.e2e.ts
similarity index 84%
rename from packages/openapi-ts/test/e2e/v3.fetch.spec.ts
rename to packages/openapi-ts/test/e2e/v3.fetch.e2e.ts
index 043ef92b8..9e51d4041 100644
--- a/packages/openapi-ts/test/e2e/v3.fetch.spec.ts
+++ b/packages/openapi-ts/test/e2e/v3.fetch.e2e.ts
@@ -1,9 +1,15 @@
+import path from 'node:path'
+import { fileURLToPath } from 'node:url'
+
 import { afterAll, beforeAll, describe, expect, it, vi } from 'vitest'
 
 import { cleanup } from './scripts/cleanup'
 import { compileWithTypescript } from './scripts/compileWithTypescript'
 import { generateClient } from './scripts/generateClient'
 import server from './scripts/server'
+const __dirname = fileURLToPath(new URL('.', import.meta.url));
+const __filename = path.resolve(__dirname, 'generated/v3/fetch/index.js')
+
 
 describe('v3.fetch', () => {
   beforeAll(async () => {
@@ -18,9 +24,7 @@ describe('v3.fetch', () => {
   })
 
   it('requests token', async () => {
-    const { OpenAPI, SimpleService } = await import(
-      './generated/v3/fetch/index.js'
-    )
+    const { OpenAPI, SimpleService } = await import(__filename)
     const tokenRequest = vi.fn().mockResolvedValue('MY_TOKEN')
     OpenAPI.TOKEN = tokenRequest
     OpenAPI.USERNAME = undefined
@@ -32,9 +36,7 @@ describe('v3.fetch', () => {
   })
 
   it('uses credentials', async () => {
-    const { OpenAPI, SimpleService } = await import(
-      './generated/v3/fetch/index.js'
-    )
+    const { OpenAPI, SimpleService } = await import(__filename)
     OpenAPI.TOKEN = undefined
     OpenAPI.USERNAME = 'username'
     OpenAPI.PASSWORD = 'password'
@@ -44,7 +46,7 @@ describe('v3.fetch', () => {
   })
 
   it('supports complex params', async () => {
-    const { ComplexService } = await import('./generated/v3/fetch/index.js')
+    const { ComplexService } = await import(__filename)
     const result = await ComplexService.complexTypes({
       // @ts-ignore
       first: {
@@ -57,7 +59,7 @@ describe('v3.fetch', () => {
   })
 
   it('support form data', async () => {
-    const { ParametersService } = await import('./generated/v3/fetch/index.js')
+    const { ParametersService } = await import(__filename)
     const result = await ParametersService.callWithParameters(
       'valueHeader',
       // @ts-ignore
@@ -73,9 +75,7 @@ describe('v3.fetch', () => {
   })
 
   it('support blob response data', async () => {
-    const { FileResponseService } = await import(
-      './generated/v3/fetch/index.js'
-    )
+    const { FileResponseService } = await import(__filename)
     // @ts-ignore
     const result = await FileResponseService.fileResponse('test')
     expect(result).toBeDefined()
@@ -84,7 +84,7 @@ describe('v3.fetch', () => {
   it('can abort the request', async () => {
     let error
     try {
-      const { SimpleService } = await import('./generated/v3/fetch/index.js')
+      const { SimpleService } = await import(__filename)
       const promise = SimpleService.getCallWithoutParametersAndResponse()
       setTimeout(() => {
         promise.cancel()
@@ -99,7 +99,7 @@ describe('v3.fetch', () => {
   it('should throw known error (500)', async () => {
     let error
     try {
-      const { ErrorService } = await import('./generated/v3/fetch/index.js')
+      const { ErrorService } = await import(__filename)
       // @ts-ignore
       await ErrorService.testErrorCode(500)
     } catch (err) {
@@ -130,7 +130,7 @@ describe('v3.fetch', () => {
   it('should throw unknown error (599)', async () => {
     let error
     try {
-      const { ErrorService } = await import('./generated/v3/fetch/index.js')
+      const { ErrorService } = await import(__filename)
       // @ts-ignore
       await ErrorService.testErrorCode(599)
     } catch (err) {
@@ -160,7 +160,7 @@ describe('v3.fetch', () => {
   })
 
   it('it should parse query params', async () => {
-    const { ParametersService } = await import('./generated/v3/fetch/index.js')
+    const { ParametersService } = await import(__filename)
     const result = await ParametersService.postCallWithOptionalParam({
       // @ts-ignore
       page: 0,
@@ -187,14 +187,14 @@ describe('v3.fetch useOptions', () => {
   })
 
   it('returns result body by default', async () => {
-    const { SimpleService } = await import('./generated/v3/fetch/index.js')
+    const { SimpleService } = await import(__filename)
     const result = await SimpleService.getCallWithoutParametersAndResponse()
     // @ts-ignore
     expect(result.body).toBeUndefined()
   })
 
   it('returns result body', async () => {
-    const { SimpleService } = await import('./generated/v3/fetch/index.js')
+    const { SimpleService } = await import(__filename)
     // @ts-ignore
     const result = await SimpleService.getCallWithoutParametersAndResponse({
       _result: 'body'
@@ -205,7 +205,7 @@ describe('v3.fetch useOptions', () => {
 
   it('returns raw result', async ({ skip }) => {
     skip()
-    const { SimpleService } = await import('./generated/v3/fetch/index.js')
+    const { SimpleService } = await import(__filename)
     // @ts-ignore
     const result = await SimpleService.getCallWithoutParametersAndResponse({
       _result: 'raw'
diff --git a/packages/openapi-ts/test/e2e/v3.node.spec.ts b/packages/openapi-ts/test/e2e/v3.node.e2e.ts
similarity index 84%
rename from packages/openapi-ts/test/e2e/v3.node.spec.ts
rename to packages/openapi-ts/test/e2e/v3.node.e2e.ts
index d11276153..3f29bad9e 100644
--- a/packages/openapi-ts/test/e2e/v3.node.spec.ts
+++ b/packages/openapi-ts/test/e2e/v3.node.e2e.ts
@@ -1,9 +1,15 @@
+import path from 'node:path'
+import { fileURLToPath } from 'node:url'
+
 import { afterAll, beforeAll, describe, expect, it, vi } from 'vitest'
 
 import { cleanup } from './scripts/cleanup'
 import { compileWithTypescript } from './scripts/compileWithTypescript'
 import { generateClient } from './scripts/generateClient'
 import server from './scripts/server'
+const __dirname = fileURLToPath(new URL('.', import.meta.url));
+const __filename = path.resolve(__dirname, 'generated/v3/node/index.js')
+
 
 describe('v3.node', () => {
   beforeAll(async () => {
@@ -18,9 +24,7 @@ describe('v3.node', () => {
   })
 
   it('requests token', async () => {
-    const { OpenAPI, SimpleService } = await import(
-      './generated/v3/node/index.js'
-    )
+    const { OpenAPI, SimpleService } = await import(__filename)
     const tokenRequest = vi.fn().mockResolvedValue('MY_TOKEN')
     OpenAPI.TOKEN = tokenRequest
     OpenAPI.USERNAME = undefined
@@ -32,9 +36,7 @@ describe('v3.node', () => {
   })
 
   it('uses credentials', async () => {
-    const { OpenAPI, SimpleService } = await import(
-      './generated/v3/node/index.js'
-    )
+    const { OpenAPI, SimpleService } = await import(__filename)
     OpenAPI.TOKEN = undefined
     OpenAPI.USERNAME = 'username'
     OpenAPI.PASSWORD = 'password'
@@ -44,7 +46,7 @@ describe('v3.node', () => {
   })
 
   it('supports complex params', async () => {
-    const { ComplexService } = await import('./generated/v3/node/index.js')
+    const { ComplexService } = await import(__filename)
     const result = await ComplexService.complexTypes({
       // @ts-ignore
       first: {
@@ -57,7 +59,7 @@ describe('v3.node', () => {
   })
 
   it('support form data', async () => {
-    const { ParametersService } = await import('./generated/v3/node/index.js')
+    const { ParametersService } = await import(__filename)
     const result = await ParametersService.callWithParameters(
       'valueHeader',
       // @ts-ignore
@@ -73,7 +75,7 @@ describe('v3.node', () => {
   })
 
   it('support blob response data', async () => {
-    const { FileResponseService } = await import('./generated/v3/node/index.js')
+    const { FileResponseService } = await import(__filename)
     // @ts-ignore
     const result = await FileResponseService.fileResponse('test')
     expect(result).toBeDefined()
@@ -82,7 +84,7 @@ describe('v3.node', () => {
   it('can abort the request', async () => {
     let error
     try {
-      const { SimpleService } = await import('./generated/v3/node/index.js')
+      const { SimpleService } = await import(__filename)
       const promise = SimpleService.getCallWithoutParametersAndResponse()
       setTimeout(() => {
         promise.cancel()
@@ -97,7 +99,7 @@ describe('v3.node', () => {
   it('should throw known error (500)', async () => {
     let error
     try {
-      const { ErrorService } = await import('./generated/v3/node/index.js')
+      const { ErrorService } = await import(__filename)
       // @ts-ignore
       await ErrorService.testErrorCode(500)
     } catch (err) {
@@ -128,7 +130,7 @@ describe('v3.node', () => {
   it('should throw unknown error (599)', async () => {
     let error
     try {
-      const { ErrorService } = await import('./generated/v3/node/index.js')
+      const { ErrorService } = await import(__filename)
       // @ts-ignore
       await ErrorService.testErrorCode(599)
     } catch (err) {
@@ -158,7 +160,7 @@ describe('v3.node', () => {
   })
 
   it('it should parse query params', async () => {
-    const { ParametersService } = await import('./generated/v3/node/index.js')
+    const { ParametersService } = await import(__filename)
     const result = await ParametersService.postCallWithOptionalParam({
       // @ts-ignore
       page: 0,
@@ -185,14 +187,14 @@ describe('v3.node useOptions', () => {
   })
 
   it('returns result body by default', async () => {
-    const { SimpleService } = await import('./generated/v3/node/index.js')
+    const { SimpleService } = await import(__filename)
     const result = await SimpleService.getCallWithoutParametersAndResponse()
     // @ts-ignore
     expect(result.body).toBeUndefined()
   })
 
   it('returns result body', async () => {
-    const { SimpleService } = await import('./generated/v3/node/index.js')
+    const { SimpleService } = await import(__filename)
     // @ts-ignore
     const result = await SimpleService.getCallWithoutParametersAndResponse({
       _result: 'body'
@@ -203,7 +205,7 @@ describe('v3.node useOptions', () => {
 
   it('returns raw result', async ({ skip }) => {
     skip()
-    const { SimpleService } = await import('./generated/v3/node/index.js')
+    const { SimpleService } = await import(__filename)
     // @ts-ignore
     const result = await SimpleService.getCallWithoutParametersAndResponse({
       _result: 'raw'
diff --git a/packages/openapi-ts/test/e2e/v3.xhr.spec.ts b/packages/openapi-ts/test/e2e/v3.xhr.e2e.ts
similarity index 85%
rename from packages/openapi-ts/test/e2e/v3.xhr.spec.ts
rename to packages/openapi-ts/test/e2e/v3.xhr.e2e.ts
index a4abff57d..d9fa1dc6f 100644
--- a/packages/openapi-ts/test/e2e/v3.xhr.spec.ts
+++ b/packages/openapi-ts/test/e2e/v3.xhr.e2e.ts
@@ -1,9 +1,15 @@
+import path from 'node:path'
+import { fileURLToPath } from 'node:url'
+
 import { afterAll, beforeAll, describe, expect, it, vi } from 'vitest'
 
 import { cleanup } from './scripts/cleanup'
 import { compileWithTypescript } from './scripts/compileWithTypescript'
 import { generateClient } from './scripts/generateClient'
 import server from './scripts/server'
+const __dirname = fileURLToPath(new URL('.', import.meta.url));
+const __filename = path.resolve(__dirname, 'generated/v3/xhr/index.js')
+
 
 describe.skip('v3.xhr', () => {
   beforeAll(async () => {
@@ -18,9 +24,7 @@ describe.skip('v3.xhr', () => {
   })
 
   it('requests token', async () => {
-    const { OpenAPI, SimpleService } = await import(
-      './generated/v3/xhr/index.js'
-    )
+    const { OpenAPI, SimpleService } = await import(__filename)
     const tokenRequest = vi.fn().mockResolvedValue('MY_TOKEN')
     OpenAPI.TOKEN = tokenRequest
     OpenAPI.USERNAME = undefined
@@ -32,9 +36,7 @@ describe.skip('v3.xhr', () => {
   })
 
   it('uses credentials', async () => {
-    const { OpenAPI, SimpleService } = await import(
-      './generated/v3/xhr/index.js'
-    )
+    const { OpenAPI, SimpleService } = await import(__filename)
     OpenAPI.TOKEN = undefined
     OpenAPI.USERNAME = 'username'
     OpenAPI.PASSWORD = 'password'
@@ -44,7 +46,7 @@ describe.skip('v3.xhr', () => {
   })
 
   it('supports complex params', async () => {
-    const { ComplexService } = await import('./generated/v3/xhr/index.js')
+    const { ComplexService } = await import(__filename)
     const result = await ComplexService.complexTypes({
       // @ts-ignore
       first: {
@@ -57,7 +59,7 @@ describe.skip('v3.xhr', () => {
   })
 
   it('support form data', async () => {
-    const { ParametersService } = await import('./generated/v3/xhr/index.js')
+    const { ParametersService } = await import(__filename)
     const result = await ParametersService.callWithParameters(
       'valueHeader',
       // @ts-ignore
@@ -75,7 +77,7 @@ describe.skip('v3.xhr', () => {
   it('can abort the request', async () => {
     let error
     try {
-      const { SimpleService } = await import('./generated/v3/xhr/index.js')
+      const { SimpleService } = await import(__filename)
       const promise = SimpleService.getCallWithoutParametersAndResponse()
       setTimeout(() => {
         promise.cancel()
@@ -90,7 +92,7 @@ describe.skip('v3.xhr', () => {
   it('should throw known error (500)', async () => {
     let error
     try {
-      const { ErrorService } = await import('./generated/v3/xhr/index.js')
+      const { ErrorService } = await import(__filename)
       // @ts-ignore
       await ErrorService.testErrorCode(500)
     } catch (err) {
@@ -121,7 +123,7 @@ describe.skip('v3.xhr', () => {
   it('should throw unknown error (599)', async () => {
     let error
     try {
-      const { ErrorService } = await import('./generated/v3/xhr/index.js')
+      const { ErrorService } = await import(__filename)
       // @ts-ignore
       await ErrorService.testErrorCode(599)
     } catch (err) {
@@ -151,7 +153,7 @@ describe.skip('v3.xhr', () => {
   })
 
   it('it should parse query params', async () => {
-    const { ParametersService } = await import('./generated/v3/xhr/index.js')
+    const { ParametersService } = await import(__filename)
     const result = await ParametersService.postCallWithOptionalParam({
       // @ts-ignore
       page: 0,
@@ -178,14 +180,14 @@ describe.skip('v3.xhr useOptions', () => {
   })
 
   it('returns result body by default', async () => {
-    const { SimpleService } = await import('./generated/v3/xhr/index.js')
+    const { SimpleService } = await import(__filename)
     const result = await SimpleService.getCallWithoutParametersAndResponse()
     // @ts-ignore
     expect(result.body).toBeUndefined()
   })
 
   it('returns result body', async () => {
-    const { SimpleService } = await import('./generated/v3/xhr/index.js')
+    const { SimpleService } = await import(__filename)
     // @ts-ignore
     const result = await SimpleService.getCallWithoutParametersAndResponse({
       _result: 'body'
@@ -196,7 +198,7 @@ describe.skip('v3.xhr useOptions', () => {
 
   it('returns raw result', async ({ skip }) => {
     skip()
-    const { SimpleService } = await import('./generated/v3/xhr/index.js')
+    const { SimpleService } = await import(__filename)
     // @ts-ignore
     const result = await SimpleService.getCallWithoutParametersAndResponse({
       _result: 'raw'
diff --git a/packages/openapi-ts/test/index.spec.ts b/packages/openapi-ts/test/index.spec.ts
index a06599233..51993a42e 100644
--- a/packages/openapi-ts/test/index.spec.ts
+++ b/packages/openapi-ts/test/index.spec.ts
@@ -1,4 +1,6 @@
 import { readFileSync } from 'node:fs';
+import path from 'node:path';
+import { fileURLToPath } from 'node:url';
 
 import { sync } from 'glob';
 import { describe, expect, it } from 'vitest';
@@ -6,14 +8,19 @@ import { describe, expect, it } from 'vitest';
 import { createClient } from '../';
 import type { UserConfig } from '../src/types/config';
 
-const V2_SPEC_PATH = './test/spec/v2.json';
-const V3_SPEC_PATH = './test/spec/v3.json';
+const __dirname = fileURLToPath(new URL('.', import.meta.url));
 
-const OUTPUT_PREFIX = './test/generated/';
+const V2_SPEC_PATH = path.resolve(__dirname, 'spec/v2.json');
+const V3_SPEC_PATH = path.resolve(__dirname, 'spec/v3.json');
 
-const toOutputPath = (name: string) => `${OUTPUT_PREFIX}${name}/`;
+const OUTPUT_PREFIX = path.resolve(__dirname, 'generated/');
+
+const toOutputPath = (name: string) => path.resolve(OUTPUT_PREFIX, name);
 const toSnapshotPath = (file: string) =>
-  `./__snapshots__/${file.replace(OUTPUT_PREFIX, '')}.snap`;
+  path.resolve(
+    __dirname,
+    `__snapshots__/${file.replace(OUTPUT_PREFIX, '')}.snap`,
+  );
 
 describe('OpenAPI v2', () => {
   it.each([
@@ -39,8 +46,8 @@ describe('OpenAPI v2', () => {
       input: V2_SPEC_PATH,
       output,
     });
-    sync(`${output}**/*.ts`).forEach((file) => {
-      const content = readFileSync(file, 'utf8').toString();
+    sync(path.resolve(output, '**/*.ts')).forEach((file) => {
+      const content = readFileSync(file, { encoding: 'utf-8' });
       expect(content).toMatchFileSnapshot(toSnapshotPath(file));
     });
   });
@@ -251,8 +258,8 @@ describe('OpenAPI v3', () => {
       input: V3_SPEC_PATH,
       output,
     });
-    sync(`${output}**/*.ts`).forEach((file) => {
-      const content = readFileSync(file, 'utf8').toString();
+    sync(path.resolve(output, '**/*.ts')).forEach((file) => {
+      const content = readFileSync(file, { encoding: 'utf-8' }).toString();
       expect(content).toMatchFileSnapshot(toSnapshotPath(file));
     });
   });
diff --git a/packages/openapi-ts/vitest.config.e2e.ts b/packages/openapi-ts/vitest.config.e2e.ts
deleted file mode 100644
index ae277b99b..000000000
--- a/packages/openapi-ts/vitest.config.e2e.ts
+++ /dev/null
@@ -1,16 +0,0 @@
-import { fileURLToPath } from 'node:url';
-
-import { defineConfig } from 'vitest/config';
-
-import { handlebarsPlugin } from './rollup.config';
-
-export default defineConfig({
-  plugins: [handlebarsPlugin()],
-  test: {
-    // Dont run tests in parallel. This is to ensure the test server can start up.
-    // And that the port was not previously taken.
-    fileParallelism: false,
-    include: ['test/e2e/**/*.spec.ts'],
-    root: fileURLToPath(new URL('./', import.meta.url)),
-  },
-});
diff --git a/packages/openapi-ts/vitest.config.unit.ts b/packages/openapi-ts/vitest.config.unit.ts
deleted file mode 100644
index 2b1683955..000000000
--- a/packages/openapi-ts/vitest.config.unit.ts
+++ /dev/null
@@ -1,18 +0,0 @@
-import { fileURLToPath } from 'node:url';
-
-import { configDefaults, defineConfig } from 'vitest/config';
-
-import { handlebarsPlugin } from './rollup.config';
-
-export default defineConfig({
-  plugins: [handlebarsPlugin()],
-  test: {
-    coverage: {
-      exclude: ['bin', 'dist', 'src/**/*.d.ts'],
-      include: ['src/**/*.ts'],
-      provider: 'v8',
-    },
-    exclude: [...configDefaults.exclude, 'test/e2e/**/*.spec.ts'],
-    root: fileURLToPath(new URL('./', import.meta.url)),
-  },
-});
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 6194b2663..9184dd38e 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -8,6 +8,9 @@ importers:
 
   .:
     devDependencies:
+      '@angular/cli':
+        specifier: 17.3.5
+        version: 17.3.5
       '@changesets/cli':
         specifier: 2.27.1
         version: 2.27.1
@@ -461,6 +464,16 @@ packages:
       '@jridgewell/trace-mapping': 0.3.25
     dev: true
 
+  /@angular-devkit/architect@0.1703.5:
+    resolution: {integrity: sha512-j3+9QeXIafuRMtk7N5Cmm/IiMSS/TOaybzfCv/LK+DP3hjEd8f8Az7hPmevUuOArvWNzUvoUeu30GmR3wABydA==}
+    engines: {node: ^18.13.0 || >=20.9.0, npm: ^6.11.0 || ^7.5.6 || >=8.0.0, yarn: '>= 1.13.0'}
+    dependencies:
+      '@angular-devkit/core': 17.3.5
+      rxjs: 7.8.1
+    transitivePeerDependencies:
+      - chokidar
+    dev: true
+
   /@angular-devkit/architect@0.1703.6:
     resolution: {integrity: sha512-Ck501FD/QuOjeKVFs7hU92w8+Ffetv0d5Sq09XY2/uygo5c/thMzp9nkevaIWBxUSeU5RqYZizDrhFVgYzbbOw==}
     engines: {node: ^18.13.0 || >=20.9.0, npm: ^6.11.0 || ^7.5.6 || >=8.0.0, yarn: '>= 1.13.0'}
@@ -614,6 +627,23 @@ packages:
       - chokidar
     dev: true
 
+  /@angular-devkit/core@17.3.5:
+    resolution: {integrity: sha512-iqGv45HVI+yRROoTqQTY0QChYlRCZkFUfIjdfJLegjc6xq9sLtxDr03CWM45BKGG5lSxDOy+qu/pdRvtL3V2eg==}
+    engines: {node: ^18.13.0 || >=20.9.0, npm: ^6.11.0 || ^7.5.6 || >=8.0.0, yarn: '>= 1.13.0'}
+    peerDependencies:
+      chokidar: ^3.5.2
+    peerDependenciesMeta:
+      chokidar:
+        optional: true
+    dependencies:
+      ajv: 8.12.0
+      ajv-formats: 2.1.1(ajv@8.12.0)
+      jsonc-parser: 3.2.1
+      picomatch: 4.0.1
+      rxjs: 7.8.1
+      source-map: 0.7.4
+    dev: true
+
   /@angular-devkit/core@17.3.6:
     resolution: {integrity: sha512-FVbkT9dEwHEvjnxr4mvMNSMg2bCFoGoP4X68xXU9dhLEUpC05opLvfbaR3Qh543eCJ5AstosBFVzB/krfIkOvA==}
     engines: {node: ^18.13.0 || >=20.9.0, npm: ^6.11.0 || ^7.5.6 || >=8.0.0, yarn: '>= 1.13.0'}
@@ -631,6 +661,19 @@ packages:
       source-map: 0.7.4
     dev: true
 
+  /@angular-devkit/schematics@17.3.5:
+    resolution: {integrity: sha512-oh/mvpMKxGfk5v9QIB7LfGsDC/iVpmsIAvbb4+1ddCx86EJXdz3xWnVDbUehOd6n7HJXnQrNirWjWvWquM2GhQ==}
+    engines: {node: ^18.13.0 || >=20.9.0, npm: ^6.11.0 || ^7.5.6 || >=8.0.0, yarn: '>= 1.13.0'}
+    dependencies:
+      '@angular-devkit/core': 17.3.5
+      jsonc-parser: 3.2.1
+      magic-string: 0.30.8
+      ora: 5.4.1
+      rxjs: 7.8.1
+    transitivePeerDependencies:
+      - chokidar
+    dev: true
+
   /@angular-devkit/schematics@17.3.6:
     resolution: {integrity: sha512-2G1YuPInd8znG7uUgKOS7z72Aku50lTzB/2csWkWPJLAFkh7vKC8QZ40x8S1nC9npVYPhI5CRLX/HVpBh9CyxA==}
     engines: {node: ^18.13.0 || >=20.9.0, npm: ^6.11.0 || ^7.5.6 || >=8.0.0, yarn: '>= 1.13.0'}
@@ -654,6 +697,35 @@ packages:
       tslib: 2.6.2
     dev: true
 
+  /@angular/cli@17.3.5:
+    resolution: {integrity: sha512-6MHJzPKy4uB9qlJO1eKs4rtDlRuCe0lOiz1f3kHFZ/GQQm5xA1xsmZJMN4ASsnu4yU3oZs6vJ/vt8i2/jvdPbA==}
+    engines: {node: ^18.13.0 || >=20.9.0, npm: ^6.11.0 || ^7.5.6 || >=8.0.0, yarn: '>= 1.13.0'}
+    hasBin: true
+    dependencies:
+      '@angular-devkit/architect': 0.1703.5
+      '@angular-devkit/core': 17.3.5
+      '@angular-devkit/schematics': 17.3.5
+      '@schematics/angular': 17.3.5
+      '@yarnpkg/lockfile': 1.1.0
+      ansi-colors: 4.1.3
+      ini: 4.1.2
+      inquirer: 9.2.15
+      jsonc-parser: 3.2.1
+      npm-package-arg: 11.0.1
+      npm-pick-manifest: 9.0.0
+      open: 8.4.2
+      ora: 5.4.1
+      pacote: 17.0.6
+      resolve: 1.22.8
+      semver: 7.6.0
+      symbol-observable: 4.0.0
+      yargs: 17.7.2
+    transitivePeerDependencies:
+      - bluebird
+      - chokidar
+      - supports-color
+    dev: true
+
   /@angular/cli@17.3.6:
     resolution: {integrity: sha512-poKaRPeI+hFqX+AxIaEriaIggFVcC3XqlT9E1/uBC2rfHirE1n5F9Z7xqEDtMHduKwLbNXhQIPoKIKya8+Hnew==}
     engines: {node: ^18.13.0 || >=20.9.0, npm: ^6.11.0 || ^7.5.6 || >=8.0.0, yarn: '>= 1.13.0'}
@@ -3511,6 +3583,17 @@ packages:
     dev: true
     optional: true
 
+  /@schematics/angular@17.3.5:
+    resolution: {integrity: sha512-SWCK16Eob0K86hpZ3NHmrTS6LSzTlhvnIdf3BXC6nzoiyDhcAS0oJ2Tjdq1opW/PaL1hB7MulcbIhxYln5du0w==}
+    engines: {node: ^18.13.0 || >=20.9.0, npm: ^6.11.0 || ^7.5.6 || >=8.0.0, yarn: '>= 1.13.0'}
+    dependencies:
+      '@angular-devkit/core': 17.3.5
+      '@angular-devkit/schematics': 17.3.5
+      jsonc-parser: 3.2.1
+    transitivePeerDependencies:
+      - chokidar
+    dev: true
+
   /@schematics/angular@17.3.6:
     resolution: {integrity: sha512-jCNZdjHSVrI8TrrCnCoXC8GYvQRj7zh+SDdmm91Ve8dbikYNmBOKYLuPaCTsmojWx7ytv962yLlgKzpaa2bbfw==}
     engines: {node: ^18.13.0 || >=20.9.0, npm: ^6.11.0 || ^7.5.6 || >=8.0.0, yarn: '>= 1.13.0'}
diff --git a/tsconfig.json b/tsconfig.json
new file mode 100644
index 000000000..097bb014d
--- /dev/null
+++ b/tsconfig.json
@@ -0,0 +1,18 @@
+{
+  "$schema": "https://json.schemastore.org/tsconfig",
+  "files": [],
+  "references": [
+    {
+      "path": "packages/client-axios"
+    },
+    {
+      "path": "packages/client-core"
+    },
+    {
+      "path": "packages/client-fetch"
+    },
+    {
+      "path": "packages/openapi-ts"
+    }
+  ]
+}
diff --git a/vitest.config.ts b/vitest.config.ts
new file mode 100644
index 000000000..48e722bff
--- /dev/null
+++ b/vitest.config.ts
@@ -0,0 +1,15 @@
+import { configDefaults, defineConfig } from 'vitest/config';
+
+import { handlebarsPlugin } from './packages/openapi-ts/rollup.config';
+
+export default defineConfig({
+  plugins: [handlebarsPlugin()],
+  test: {
+    coverage: {
+      exclude: ['**/bin', '**/dist', '**/*.d.ts', '**/generated/**'],
+      include: ['**/src/**/*.ts'],
+      provider: 'v8',
+    },
+    exclude: [...configDefaults.exclude],
+  },
+});
diff --git a/vitest.workspace.ts b/vitest.workspace.ts
new file mode 100644
index 000000000..1ca2d824c
--- /dev/null
+++ b/vitest.workspace.ts
@@ -0,0 +1,19 @@
+import { defineWorkspace } from 'vitest/config';
+
+export default defineWorkspace([
+  'packages/*',
+  {
+    extends: './vitest.config.ts',
+    test: {
+      include: ['**/*.{spec,test}.ts'],
+      name: 'unit',
+    },
+  },
+  {
+    extends: './vitest.config.ts',
+    test: {
+      include: ['**/*.e2e.ts'],
+      name: 'e2e',
+    },
+  },
+]);