test: add e2e test case for ESM features

e2e/esm-features/__tests__/esm-features.spec.ts

@@ -0,0 +1,34 @@
+import jsonImportAssertion from '../src/foo.json' assert { type: 'json' }
+
+const topLevelAwait = await import('../src/foo.json')
+
+const itWithRunNode18Above = (...args: Parameters<typeof it>) => {
+  const [major] = process.versions.node.split('.').map(Number)
+  if (major > 16) {
+    // eslint-disable-next-line jest/valid-title,jest/expect-expect,jest/no-disabled-tests
+    return it(...args)
+  }
+
+  // eslint-disable-next-line jest/valid-title,jest/expect-expect,jest/no-disabled-tests
+  return it.skip(...args)
+}
+
+describe('esm-features', () => {
+  it('should work with import.meta', () => {
+    expect(import.meta.jest).toBeDefined()
+  })
+
+  it('should work with import assertion', () => {
+    expect(jsonImportAssertion.name).toBe('hello')
+  })
+
+  itWithRunNode18Above('should work with import attributes', async () => {
+    const jsonImportAttrs = await import('../src/foo.json', { with: { type: 'json' } })
+    // eslint-disable-next-line jest/no-standalone-expect
+    expect(jsonImportAttrs.default.name).toBe('hello')
+  })
+
+  it('should work with top-level await', () => {
+    expect(topLevelAwait.default.name).toBe('hello')
+  })
+})

e2e/esm-features/jest-compiler-esm.config.ts

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+import { type JestConfigWithTsJest, TS_TRANSFORM_PATTERN } from 'ts-jest'
+
+export default {
+  displayName: 'esm-features-compiler-esm',
+  extensionsToTreatAsEsm: ['.ts'],
+  transform: {
+    [TS_TRANSFORM_PATTERN]: [
+      'ts-jest',
+      {
+        tsconfig: '<rootDir>/tsconfig-esm.spec.json',
+        useESM: true,
+      },
+    ],
+  },
+} satisfies JestConfigWithTsJest

e2e/esm-features/jest-transpiler-esm.config.ts

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+import { type JestConfigWithTsJest, TS_TRANSFORM_PATTERN } from 'ts-jest'
+
+export default {
+  displayName: 'esm-features-transpiler-esm',
+  extensionsToTreatAsEsm: ['.ts'],
+  transform: {
+    [TS_TRANSFORM_PATTERN]: [
+      'ts-jest',
+      {
+        tsconfig: '<rootDir>/tsconfig-esm.spec.json',
+        isolatedModules: true,
+        useESM: true,
+      },
+    ],
+  },
+} satisfies JestConfigWithTsJest

e2e/esm-features/package.json

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+{
+  "name": "esm-features",
+  "private": true
+}

e2e/esm-features/src/foo.json

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+{
+  "name": "hello"
+}

e2e/esm-features/tsconfig-esm.spec.json

@@ -0,0 +1,3 @@
+{
+  "extends": "./tsconfig.json"
+}

e2e/esm-features/tsconfig.json

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+{
+  "extends": "../tsconfig-esm.spec.json"
+}