fix: comparing different URL objects now return false

CHANGELOG.md

@@ -24,6 +24,7 @@
 - `[jest-circus, jest-expect, jest-snapshot]` Pass `test.failing` tests when containing failing snapshot matchers ([#14313](https://github.com/jestjs/jest/pull/14313))
 - `[jest-config]` Make sure to respect `runInBand` option ([#14578](https://github.com/facebook/jest/pull/14578))
 - `[@jest/expect-utils]` Fix comparison of `DataView` ([#14408](https://github.com/jestjs/jest/pull/14408))
+- `[@jest/expect-utils]` Fix comparison of `URL` ([#14672](https://github.com/jestjs/jest/pull/14672))
 - `[jest-leak-detector]` Make leak-detector more aggressive when running GC ([#14526](https://github.com/jestjs/jest/pull/14526))
 - `[jest-runtime]` Properly handle re-exported native modules in ESM via CJS ([#14589](https://github.com/jestjs/jest/pull/14589))
 - `[jest-util]` Make sure `isInteractive` works in a browser ([#14552](https://github.com/jestjs/jest/pull/14552))

packages/expect-utils/src/__tests__/utils.test.ts

@@ -17,6 +17,7 @@ import {
   subsetEquality,
   typeEquality,
 } from '../utils';
+import { equals } from "../jasmineUtils";
 
 describe('getPath()', () => {
   test('property exists', () => {
@@ -578,9 +579,21 @@ describe('arrayBufferEquality', () => {
     expect(arrayBufferEquality(a, b)).toBeTruthy();
   });
 
-  test('returns false when given matching DataView', () => {
+  test('returns false when given non-matching DataView', () => {
     const a = new DataView(Uint8Array.from([1, 2, 3]).buffer);
     const b = new DataView(Uint8Array.from([3, 2, 1]).buffer);
     expect(arrayBufferEquality(a, b)).toBeFalsy();
   });
+
+  test('returns true when given matching URL', () => {
+    const a = new URL("https://jestjs.io/");
+    const b = new URL("https://jestjs.io/");
+    expect(equals(a, b)).toBeTruthy();
+  });
+
+  test('returns false when given non-matching URL', () => {
+    const a = new URL("https://jestjs.io/docs/getting-started");
+    const b = new URL("https://jestjs.io/docs/getting-started#using-babel");
+    expect(equals(a, b)).toBeFalsy();
+  });
 });

packages/expect-utils/src/jasmineUtils.ts

@@ -125,6 +125,9 @@ function eq(
     // RegExps are compared by their source patterns and flags.
     case '[object RegExp]':
       return a.source === b.source && a.flags === b.flags;
+    // URLs are compared by their href property which contains the entire url string.
+    case '[object URL]':
+      return a.href === b.href;
   }
   if (typeof a !== 'object' || typeof b !== 'object') {
     return false;