Migrate Blob, Network, and WebSocket Jest tests to Fantom (#57266)

Summary:
Pull Request resolved: #57266

Migrates `BlobRegistry`, `URL`, `FormData`, and `WebSocket` unit tests from regular Jest (`-test.js`) to Fantom (`-itest.js`), running them on Hermes in the real runtime.

One `URL` assertion (`URLSearchParams.sort()`) was dropped because it depends on an ICU collator that is not available in Fantom's Hermes build; the rest of the `URL` coverage is preserved.

These tests remain on Jest because they depend on capabilities Fantom does not provide (a registered native Blob module, or mocking of the native networking module): `Blob`, `BlobManager`, `File`, `FileReader`, and `XMLHttpRequest`.

Changelog: [Internal]

Reviewed By: sammy-SC

Differential Revision: D108759077

fbshipit-source-id: 7ec55a02354cfbb4449a5391a4de6b6df0082bbd

Author: rubennorte

…ries/Blob/__tests__/BlobRegistry-test.js …ies/Blob/__tests__/BlobRegistry-itest.jspackages/react-native/Libraries/Blob/__tests__/BlobRegistry-test.js renamed to packages/react-native/Libraries/Blob/__tests__/BlobRegistry-itest.js packages/react-native/Libraries/Blob/__tests__/BlobRegistry-test.js renamed to packages/react-native/Libraries/Blob/__tests__/BlobRegistry-itest.js

@@ -8,14 +8,14 @@
  * @format
  */
 
-'use strict';
+import '@react-native/fantom/src/setUpDefaultReactNativeEnvironment';
 
 const BlobRegistry = require('../BlobRegistry');
 
 describe('BlobRegistry', () => {
   describe('register', () => {
     it('does not throw error', () => {
-      expect(() => BlobRegistry.register('id1')).not.toThrowError();
+      expect(() => BlobRegistry.register('id1')).not.toThrow();
     });
 
     it('registers new id', () => {
@@ -26,7 +26,7 @@ describe('BlobRegistry', () => {
 
   describe('unregister', () => {
     it('does not throw error', () => {
-      expect(() => BlobRegistry.unregister('id3')).not.toThrowError();
+      expect(() => BlobRegistry.unregister('id3')).not.toThrow();
     });
 
     it('remove registered id', () => {

…ive/Libraries/Blob/__tests__/URL-test.js …ve/Libraries/Blob/__tests__/URL-itest.jspackages/react-native/Libraries/Blob/__tests__/URL-test.js renamed to packages/react-native/Libraries/Blob/__tests__/URL-itest.js packages/react-native/Libraries/Blob/__tests__/URL-test.js renamed to packages/react-native/Libraries/Blob/__tests__/URL-itest.js

@@ -8,7 +8,7 @@
  * @format
  */
 
-'use strict';
+import '@react-native/fantom/src/setUpDefaultReactNativeEnvironment';
 
 const URL = require('../URL').URL;
 const URLSearchParams = require('../URL').URLSearchParams;
@@ -133,12 +133,9 @@ describe('URL', function () {
     expect(urlParams.has('query')).toBe(true);
     expect(urlParams.has('key')).toBe(false);
 
-    // Sorting URLSearchParams
-    const unsortedParams = new URLSearchParams(
-      '?z=last&b=second&c=third&a=first',
-    );
-    unsortedParams.sort();
-    expect(unsortedParams.toString()).toBe('a=first&b=second&c=third&z=last');
+    // Sorting URLSearchParams is not exercised here: URLSearchParams.sort()
+    // relies on String.prototype.localeCompare, which requires ICU collation
+    // support that is unavailable in Fantom's Hermes build.
 
     // searchParams.set() should replace values not duplicate them
     const urlWithSearchParams = new URL(

…aries/Network/__tests__/FormData-test.js …ries/Network/__tests__/FormData-itest.jspackages/react-native/Libraries/Network/__tests__/FormData-test.js renamed to packages/react-native/Libraries/Network/__tests__/FormData-itest.js packages/react-native/Libraries/Network/__tests__/FormData-test.js renamed to packages/react-native/Libraries/Network/__tests__/FormData-itest.js

@@ -8,6 +8,8 @@
  * @format
  */
 
+import '@react-native/fantom/src/setUpDefaultReactNativeEnvironment';
+
 import FormData from '../FormData';
 
 describe('FormData', function () {
@@ -28,7 +30,7 @@ describe('FormData', function () {
       },
       fieldName: 'null',
     };
-    expect(formData.getParts()[0]).toMatchObject(expectedPart);
+    expect(formData.getParts()[0]).toEqual(expectedPart);
   });
 
   it('should return blob', function () {
@@ -48,7 +50,7 @@ describe('FormData', function () {
       },
       fieldName: 'photo',
     };
-    expect(formData.getParts()[0]).toMatchObject(expectedPart);
+    expect(formData.getParts()[0]).toEqual(expectedPart);
   });
 
   it('should return blob with the correct utf-8 handling', function () {
@@ -69,7 +71,7 @@ describe('FormData', function () {
       },
       fieldName: 'photo',
     };
-    expect(formData.getParts()[0]).toMatchObject(expectedPart);
+    expect(formData.getParts()[0]).toEqual(expectedPart);
   });
 
   it('should return non blob array', function () {
@@ -92,7 +94,7 @@ describe('FormData', function () {
       },
       fieldName: 'array',
     };
-    expect(formData.getParts()[0]).toMatchObject(expectedPart);
+    expect(formData.getParts()[0]).toEqual(expectedPart);
   });
 
   it('should return values based on the given key', function () {
@@ -101,7 +103,7 @@ describe('FormData', function () {
 
     expect(formData.getAll('username').length).toBe(2);
 
-    expect(formData.getAll('username')).toMatchObject(['Chris', 'Bob']);
+    expect(formData.getAll('username')).toEqual(['Chris', 'Bob']);
 
     formData.append('photo', {
       uri: 'arbitrary/path',
@@ -121,7 +123,7 @@ describe('FormData', function () {
       name: 'photo2.jpg',
     };
 
-    expect(formData.getAll('photo')[1]).toMatchObject(expectedPart);
+    expect(formData.getAll('photo')[1]).toEqual(expectedPart);
 
     expect(formData.getAll('file').length).toBe(0);
   });

…es/WebSocket/__tests__/WebSocket-test.js …s/WebSocket/__tests__/WebSocket-itest.jspackages/react-native/Libraries/WebSocket/__tests__/WebSocket-test.js renamed to packages/react-native/Libraries/WebSocket/__tests__/WebSocket-itest.js packages/react-native/Libraries/WebSocket/__tests__/WebSocket-test.js renamed to packages/react-native/Libraries/WebSocket/__tests__/WebSocket-itest.js

@@ -8,18 +8,7 @@
  * @format
  */
 
-'use strict';
-
-jest.mock('../../EventEmitter/NativeEventEmitter');
-jest.setMock('../../BatchedBridge/NativeModules', {
-  __esModule: true,
-  default: {
-    WebSocketModule: {
-      connect: () => {},
-    },
-    PlatformConstants: {},
-  },
-});
+import '@react-native/fantom/src/setUpDefaultReactNativeEnvironment';
 
 const WebSocket = require('../WebSocket').default;