Re-enable integration tests

packages/react-native/Libraries/LogBox/__tests__/LogBox-integration-test.js

@@ -18,13 +18,13 @@
 const TestRenderer = require('react-test-renderer');
 
 const installLogBox = () => {
-  const LogBox = require('../LogBox');
+  const LogBox = require('../LogBox').default;
 
   LogBox.install();
 };
 
 const uninstallLogBox = () => {
-  const LogBox = require('../LogBox');
+  const LogBox = require('../LogBox').default;
   LogBox.uninstall();
 };
 
@@ -34,7 +34,7 @@
   return message.replace(BEFORE_SLASH_RE, '/path/to/');
 };
 
 const cleanLog = logs => {
   return logs.map(log => {
     return {
       ...log,
@@ -46,21 +46,20 @@
   });
 };
 
-// TODO(T71117418): Re-enable skipped LogBox integration tests once React component
-// stack frames are the same internally and in open source.
-// eslint-disable-next-line jest/no-disabled-tests
-describe.skip('LogBox', () => {
+// TODO: we can remove all the symetric matchers once OSS lands component stack frames.
+// For now, the component stack parsing differs in ways we can't easily detect in this test.
+describe('LogBox', () => {
   const {error, warn} = console;
   const mockError = jest.fn();
   const mockWarn = jest.fn();
 
   beforeEach(() => {
     jest.resetModules();
     jest.restoreAllMocks();
+    jest.spyOn(console, 'error').mockImplementation(() => {});
 
     mockError.mockClear();
     mockWarn.mockClear();
-
     (console: any).error = mockError;
     (console: any).warn = mockWarn;
   });
@@ -79,7 +78,10 @@
     // so we can assert on what React logs.
     jest.spyOn(console, 'error');
 
-    const output = TestRenderer.create(<DoesNotUseKey />);
+    let output;
+    TestRenderer.act(() => {
+      output = TestRenderer.create(<DoesNotUseKey />);
+    });
 
     // The key error should always be the highest severity.
     // In LogBox, we expect these errors to:
@@ -88,16 +90,37 @@
     //   - Pass to console.error, with a "Warning" prefix so it does not pop a RedBox.
     expect(output).toBeDefined();
     expect(mockWarn).not.toBeCalled();
-    expect(console.error.mock.calls[0].map(cleanPath)).toMatchSnapshot(
-      'Log sent from React',
-    );
-    expect(cleanLog(spy.mock.calls[0])).toMatchSnapshot('Log added to LogBox');
-    expect(mockError.mock.calls[0].map(cleanPath)).toMatchSnapshot(
-      'Log passed to console error',
-    );
+    expect(console.error).toBeCalledTimes(1);
+    expect(console.error.mock.calls[0].map(cleanPath)).toEqual([
+      'Each child in a list should have a unique "key" prop.%s%s See https://react.dev/link/warning-keys for more information.%s',
+      '\n\nCheck the render method of `DoesNotUseKey`.',
+      '',
+      expect.stringMatching('at DoesNotUseKey'),
+    ]);
+    expect(spy).toHaveBeenCalledWith({
+      level: 'warn',
+      category: expect.stringContaining(
+        'Warning: Each child in a list should have a unique',
+      ),
+      componentStack: expect.anything(),
+      componentStackType: 'stack',
+      message: {
+        content:
+          'Warning: Each child in a list should have a unique "key" prop.\n\nCheck the render method of `DoesNotUseKey`. See https://react.dev/link/warning-keys for more information.',
+        substitutions: [
+          {length: 45, offset: 62},
+          {length: 0, offset: 107},
+        ],
+      },
+    });
 
     // The Warning: prefix is added due to a hack in LogBox to prevent double logging.
-    expect(mockError.mock.calls[0][0].startsWith('Warning: ')).toBe(true);
+    // We also interpolate the string before passing to the underlying console method.
+    expect(mockError.mock.calls[0]).toEqual([
+      expect.stringMatching(
+        'Warning: Each child in a list should have a unique "key" prop.\n\nCheck the render method of `DoesNotUseKey`. See https://react.dev/link/warning-keys for more information.\n    at ',
+      ),
+    ]);
   });
 
   it('integrates with React and handles a fragment warning in LogBox', () => {
@@ -108,7 +131,10 @@
     // so we can assert on what React logs.
     jest.spyOn(console, 'error');
 
-    const output = TestRenderer.create(<FragmentWithProp />);
+    let output;
+    TestRenderer.act(() => {
+      output = TestRenderer.create(<FragmentWithProp />);
+    });
 
     // The fragment warning is not as severe. For this warning we don't want to
     // pop open a dialog, so we show a collapsed error UI.
@@ -118,15 +144,30 @@
     //   - Pass to console.error, with a "Warning" prefix so it does not pop a RedBox.
     expect(output).toBeDefined();
     expect(mockWarn).not.toBeCalled();
-    expect(console.error.mock.calls[0].map(cleanPath)).toMatchSnapshot(
-      'Log sent from React',
-    );
-    expect(cleanLog(spy.mock.calls[0])).toMatchSnapshot('Log added to LogBox');
-    expect(mockError.mock.calls[0].map(cleanPath)).toMatchSnapshot(
-      'Log passed to console error',
-    );
+    expect(console.error).toBeCalledTimes(1);
+    expect(console.error.mock.calls[0].map(cleanPath)).toEqual([
+      'Invalid prop `%s` supplied to `React.Fragment`. React.Fragment can only have `key` and `children` props.%s',
+      'invalid',
+      expect.stringMatching('at FragmentWithProp'),
+    ]);
+    expect(spy).toHaveBeenCalledWith({
+      level: 'warn',
+      category: expect.stringContaining('Warning: Invalid prop'),
+      componentStack: expect.anything(),
+      componentStackType: expect.stringMatching(/(stack|legacy)/),
+      message: {
+        content:
+          'Warning: Invalid prop `invalid` supplied to `React.Fragment`. React.Fragment can only have `key` and `children` props.',
+        substitutions: [{length: 7, offset: 23}],
+      },
+    });
 
     // The Warning: prefix is added due to a hack in LogBox to prevent double logging.
-    expect(mockError.mock.calls[0][0].startsWith('Warning: ')).toBe(true);
+    // We also interpolate the string before passing to the underlying console method.
+    expect(mockError.mock.calls[0]).toEqual([
+      expect.stringMatching(
+        'Warning: Invalid prop `invalid` supplied to `React.Fragment`. React.Fragment can only have `key` and `children` props.\n    at FragmentWithProp',
+      ),
+    ]);
   });
 });