test: add a console error object test

tests/tools/console.test.js.snapshot

@@ -112,3 +112,10 @@ Learn more:
 ### Affected resources
 reqid=<reqid> data={"corsErrorStatus":{"corsError":"PreflightMissingAllowOriginHeader","failedParameter":""},"isWarning":false,"request":{"url":"http://hostname:port/data.json"},"initiatorOrigin":"","clientSecurityState":{"initiatorIsSecureContext":false,"initiatorIPAddressSpace":"Loopback","privateNetworkRequestPolicy":"BlockFromInsecureToMorePrivate"}}
 `;
+
+exports[`console > list_console_messages > lists error objects 1`] = `
+# test response
+## Console messages
+Showing 1-1 of 1 (Page 1 of 1).
+msgid=1 [error] JSHandle@error (1 args)
+`;

tests/tools/console.test.ts

@@ -42,6 +42,19 @@ describe('console', () => {
       });
     });
 
+    it('lists error objects', async t => {
+      await withMcpContext(async (response, context) => {
+        const page = await context.newPage();
+        await page.setContent(
+          '<script>console.error(new Error("This is an error"))</script>',
+        );
+        await listConsoleMessages.handler({params: {}}, response, context);
+        const formattedResponse = await response.handle('test', context);
+        const textContent = getTextContent(formattedResponse.content[0]);
+        t.assert.snapshot?.(textContent);
+      });
+    });
+
     it('work with primitive unhandled errors', async () => {
       await withMcpContext(async (response, context) => {
         const page = await context.newPage();