cherry-pick(#29271): Revert "chore: remove fake error from expect c…

…alls (#28112)"
microsoft · Feb 1, 2024 · e969797 · e969797
1 parent 7a72adc
commit e969797
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/packages/playwright-core/src/server/dispatchers/frameDispatcher.ts b/packages/playwright-core/src/server/dispatchers/frameDispatcher.ts
@@ -262,6 +262,8 @@ export class FrameDispatcher extends Dispatcher<Frame, channels.FrameChannel, Br
     const result = await this._frame.expect(metadata, params.selector, { ...params, expectedValue });
     if (result.received !== undefined)
       result.received = serializeResult(result.received);
+    if (result.matches === params.isNot)
+      metadata.error = { error: { name: 'Expect', message: 'Expect failed' } };
     return result;
   }
 }