chore(e2e): add pathsToModuleNameMapper test cases

e2e/__external-repos__/simple-project-references/jest.config.js

@@ -1,12 +1,16 @@
 /** @type {import('@jest/types').Config.InitialOptions} */
 /** @typedef {import('ts-jest')} */
 
+const { pathsToModuleNameMapper } = require('ts-jest/utils');
+const { compilerOptions } = require('./tsconfig-base');
+
 module.exports = {
   preset: 'ts-jest',
   testEnvironment: 'node',
   // Ignore the TS project `outDir`
   // https://github.com/kulshekhar/ts-jest/issues/765
   testPathIgnorePatterns: ['<rootDir>/target/'],
+  moduleNameMapper: pathsToModuleNameMapper(compilerOptions.paths, { prefix: '<rootDir>/' }),
   globals: {
     'ts-jest': {
       isolatedModules: true,

e2e/__external-repos__/simple-project-references/src/__tests__/divide.ts

@@ -0,0 +1,10 @@
+import { divide } from '~'
+import { divide as _divide } from '~/divide'
+
+test('imports same divide function', () => {
+  expect(_divide).toBe(divide)
+})
+
+test('divides 3 / 2 to equal 1.5', () => {
+  expect(divide(3, 2)).toBe(1.5)
+})

e2e/__external-repos__/simple-project-references/src/__tests__/multiply.ts

@@ -0,0 +1,5 @@
+import { multiply } from '@/multiply'
+
+test('multiplies 2 * 2 to equal 4', () => {
+  expect(multiply(2, 2)).toBe(4)
+})

e2e/__external-repos__/simple-project-references/src/__tests__/subtract.ts

@@ -0,0 +1,5 @@
+import { subtract } from '@/subtract'
+
+test('subtracts 3 - 1 to equal 2', () => {
+  expect(subtract(3, 1)).toBe(2)
+})

e2e/__external-repos__/simple-project-references/src/math/divide.ts

@@ -0,0 +1,3 @@
+import divide from 'lodash/divide'
+
+export { divide }

e2e/__external-repos__/simple-project-references/src/nested/src/multiply.ts

@@ -0,0 +1,3 @@
+import multiply from 'lodash/multiply'
+
+export { multiply }

e2e/__external-repos__/simple-project-references/src/nested/subtract.ts

@@ -0,0 +1,3 @@
+import subtract from 'lodash/subtract'
+
+export { subtract }

e2e/__external-repos__/simple-project-references/tsconfig-base.json

@@ -11,6 +11,19 @@
     "rootDir": "./src/",
     "types": [],
     "allowSyntheticDefaultImports": true,
-    "esModuleInterop": true
+    "esModuleInterop": true,
+    "baseUrl": ".",
+    "paths": {
+      "@/*": [
+        "src/nested/*",
+        "src/nested/src/*"
+      ],
+      "~": [
+        "src/math/divide.ts"
+      ],
+      "~/*": [
+        "src/math/*"
+      ]
+    }
   }
 }