👽 Update api/test per ts-jest deprecations

package.json

@@ -52,7 +52,8 @@
     "@commitlint/cli": "^13.1.0",
     "@commitlint/config-conventional": "^13.1.0",
     "@commitlint/prompt": "^13.1.0",
-    "@types/jest": "^27.0.2",
+    "@jest/globals": "^27.4.6",
+    "@types/jest": "^27.4.0",
     "@typescript-eslint/eslint-plugin": "^5.10.0",
     "@typescript-eslint/parser": "^5.4.0",
     "arrify": "^2.0.1",
@@ -74,7 +75,7 @@
     "eslint-plugin-react-hooks": "^4.3.0",
     "glob": "^7.2.0",
     "is-ci": "^3.0.0",
-    "jest": "^27.3.1",
+    "jest": "^27.4.7",
     "jest-github-actions-reporter": "^1.0.3",
     "jest-watch-typeahead": "^1.0.0",
     "lint-staged": "^11.1.2",
@@ -124,7 +125,6 @@
     "@babel/core": "^7.16.0",
     "@babel/preset-env": "^7.16.11",
     "@types/cross-spawn": "^6.0.2",
-    "babel-jest": "^27.2.4",
     "eslint-config-kentcdodds": "^20.0.1",
     "husky": "^7.0.4",
     "jest-in-case": "^1.0.2",

src/api/__tests__/test.js

@@ -1,11 +1,14 @@
-import * as utilsExports from 'ts-jest/utils'
+import * as utilsExports from 'ts-jest'
 import * as testExports from '../test' // eslint-disable-line import/namespace
 
+const toForwardTsJest = ['pathsToModuleNameMapper', 'createJestPreset']
+
 describe('re-exporting ts-jest utils', () => {
-  test.each(Object.entries(utilsExports).filter(([key]) => key !== 'default'))(
-    'forwards `%s` export',
-    (exportName, exportValue) => {
-      expect(testExports).toHaveProperty(exportName, exportValue)
-    },
-  )
+  test.each(
+    Object.entries(utilsExports).filter(([key]) =>
+      toForwardTsJest.includes(key),
+    ),
+  )('forwards `%s` export', (exportName, exportValue) => {
+    expect(testExports).toHaveProperty(exportName, exportValue)
+  })
 })

src/api/test.js

@@ -1 +1,6 @@
-export * from 'ts-jest/utils'
+import {jest} from '@jest/globals'
+export {pathsToModuleNameMapper, createJestPreset} from 'ts-jest'
+
+const {mocked} = jest
+
+export {mocked}

src/config/jest.config.js

@@ -2,7 +2,7 @@
 
 const {jsWithTs: preset} = require('ts-jest/presets')
 
-const {ifAnyDep, hasAnyDep, hasFile, fromRoot} = require('../utils')
+const {ifAnyDep, hasFile, fromRoot} = require('../utils')
 
 const {
   testMatch,
@@ -29,6 +29,14 @@ const jestConfig = {
   testMatch,
   testPathIgnorePatterns: [...ignores, '<rootDir>/dist'],
   testLocationInResults: true,
+  transform: Object.fromEntries(
+    // Ensure we can resolve the preset even when
+    // it's in a nested `node_modules` installation
+    Object.entries(preset.transform).map(([key, value]) => [
+      key,
+      require.resolve(value),
+    ]),
+  ),
   coveragePathIgnorePatterns: [
     ...ignores,
     'src/(umd|cjs|esm)-entry.js$',
@@ -51,24 +59,13 @@ const jestConfig = {
     require.resolve('jest-watch-typeahead/filename'),
     require.resolve('jest-watch-typeahead/testname'),
   ],
-  globals: {},
-}
-
-if (hasAnyDep('ts-jest') || hasFile('tsconfig.json')) {
-  jestConfig.transform = Object.fromEntries(
-    // Ensure we can resolve the preset even when
-    // it's in a nested `node_modules` installation
-    Object.entries(preset.transform).map(([key, value]) => [
-      key,
-      require.resolve(value),
-    ]),
-  )
-
-  jestConfig.globals['ts-jest'] = {
-    diagnostics: {
-      warnOnly: true,
+  globals: {
+    'ts-jest': {
+      diagnostics: {
+        warnOnly: true,
+      },
     },
-  }
+  },
 }
 
 if (hasFile('tests/setup-env.js')) {

src/tsconfig.json

@@ -5,9 +5,10 @@
   "compilerOptions": {
     "allowJs": true,
     "checkJs": true,
-    "emitDeclarationOnly": true,
     "declarationMap": true,
+    "emitDeclarationOnly": true,
     "outDir": "../dist",
-    "rootDir": "."
+    "rootDir": ".",
+    "skipLibCheck": true
   }
 }