Revert import assertions (#13911)

Co-authored-by: Simen Bekkhus <sbekkhus91@gmail.com>

CHANGELOG.md

@@ -4,6 +4,7 @@
 
 - `[jest-core]` allow to use workerIdleMemoryLimit with only 1 worker or runInBand option ([#13846](https://github.com/facebook/jest/pull/13846))
 - `[jest-message-util]` Add support for [error causes](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error/cause) ([#13868](https://github.com/facebook/jest/pull/13868) & [#13912](https://github.com/facebook/jest/pull/13912))
+- `[jest-runtime]` Revert `import assertions` for JSON modules as it's been relegated to Stage 2 ([#13911](https://github.com/facebook/jest/pull/13911))
 
 ### Fixes
 

e2e/__tests__/__snapshots__/nativeEsm.test.ts.snap

@@ -1,6 +1,6 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
-exports[`on node <16.12.0 does not enforce import assertions 1`] = `
+exports[`does not enforce import assertions 1`] = `
 "Test Suites: 1 passed, 1 total
 Tests:       2 passed, 2 total
 Snapshots:   0 total

e2e/__tests__/nativeEsm.test.ts

@@ -94,24 +94,22 @@ test('runs WebAssembly (Wasm) test with native ESM', () => {
   expect(exitCode).toBe(0);
 });
 
-// version where `vm` API gets `import assertions`
-onNodeVersions('>=16.12.0', () => {
-  test('enforces import assertions', () => {
-    const {exitCode, stderr, stdout} = runJest(
-      DIR,
-      ['native-esm-missing-import-assertions.test'],
-      {nodeOptions: '--experimental-vm-modules --no-warnings'},
-    );
+test('does not enforce import assertions', () => {
+  const {exitCode, stderr, stdout} = runJest(
+    DIR,
+    ['native-esm-missing-import-assertions.test'],
+    {nodeOptions: '--experimental-vm-modules --no-warnings'},
+  );
 
-    const {rest} = extractSummary(stderr);
+  const {summary} = extractSummary(stderr);
 
-    expect(rest).toContain(
-      'package.json" needs an import assertion of type "json"',
-    );
-    expect(stdout).toBe('');
-    expect(exitCode).toBe(1);
-  });
+  expect(summary).toMatchSnapshot();
+  expect(stdout).toBe('');
+  expect(exitCode).toBe(0);
+});
 
+// version where `vm` API gets `import assertions`
+onNodeVersions('>=16.12.0', () => {
   test('supports import assertions', () => {
     const {exitCode, stderr, stdout} = runJest(
       DIR,
@@ -128,20 +126,6 @@ onNodeVersions('>=16.12.0', () => {
 });
 
 onNodeVersions('<16.12.0', () => {
-  test('does not enforce import assertions', () => {
-    const {exitCode, stderr, stdout} = runJest(
-      DIR,
-      ['native-esm-missing-import-assertions.test'],
-      {nodeOptions: '--experimental-vm-modules --no-warnings'},
-    );
-
-    const {summary} = extractSummary(stderr);
-
-    expect(summary).toMatchSnapshot();
-    expect(stdout).toBe('');
-    expect(exitCode).toBe(0);
-  });
-
   test('syntax error for import assertions', () => {
     const {exitCode, stderr, stdout} = runJest(
       DIR,

packages/jest-runtime/package.json

@@ -37,15 +37,13 @@
     "jest-resolve": "workspace:^",
     "jest-snapshot": "workspace:^",
     "jest-util": "workspace:^",
-    "semver": "^7.3.5",
     "slash": "^3.0.0",
     "strip-bom": "^4.0.0"
   },
   "devDependencies": {
     "@jest/test-utils": "workspace:^",
     "@types/glob": "^7.1.1",
     "@types/graceful-fs": "^4.1.3",
-    "@types/semver": "^7.1.0",
     "jest-environment-node": "workspace:^"
   },
   "engines": {