feat: Add support for Vitest workspace

Resolves davelosert#376

src/inputs/getViteConfigPath.test.ts

@@ -34,4 +34,10 @@ describe("getViteConfigPath", () => {
     const warningMessage = vi.mocked(core.warning).mock.calls[0][0];
     expect(warningMessage).toContain(`${mockWorkingDirectory}/doesNotExist`);
   });
+
+  it("resolves Vitest workspace file", async (): Promise<void> => {
+    await expect(
+      getViteConfigPath(mockWorkingDirectory, "vitest.workspace.js")
+    ).resolves.toMatch('test/mockConfig/vitest.workspace.js');
+  });
 });

src/inputs/getViteConfigPath.ts

@@ -10,6 +10,12 @@ const testFilePath = async (workingDirectory: string, filePath: string) => {
 };
 
 const defaultPaths = [
+  "vitest.config.ts",
+  "vitest.config.mts",
+  "vitest.config.cts",
+  "vitest.config.js",
+  "vitest.config.mjs",
+  "vitest.config.cjs",
   "vitest.config.ts",
   "vitest.config.mts",
   "vitest.config.cts",
@@ -39,9 +45,9 @@ const getViteConfigPath = async (workingDirectory: string, input: string) => {
       : `any default location in "${workingDirectory}"`;
 
     core.warning(stripIndent`
-          Failed to read vite config file at ${searchPath}. 
+          Failed to read vite config file at ${searchPath}.
           Make sure you provide the vite-config-path option if you're using a non-default location or name of your config file.
-          
+
           Will not include thresholds in the final report.
       `);
     return null;

test/mockConfig/vitest.workspace.js

@@ -0,0 +1,3 @@
+import { defineWorkspace } from "vitest/config";
+
+export default defineWorkspace(["./*"]);