evaluate.spec.ts•2.23 kB
/**
* Copyright (c) Microsoft Corporation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { test, expect } from './fixtures.js';
test('browser_evaluate', async ({ client, server }) => {
expect(await client.callTool({
name: 'browser_navigate',
arguments: { url: server.HELLO_WORLD },
})).toContainTextContent(`- Page Title: Title`);
const result = await client.callTool({
name: 'browser_evaluate',
arguments: {
function: '() => document.title',
},
});
expect(result).toContainTextContent(`"Title"`);
});
test('browser_evaluate (element)', async ({ client, server }) => {
server.setContent('/', `
<body style="background-color: red">Hello, world!</body>
`, 'text/html');
await client.callTool({
name: 'browser_navigate',
arguments: { url: server.PREFIX },
});
expect(await client.callTool({
name: 'browser_evaluate',
arguments: {
function: 'element => element.style.backgroundColor',
element: 'body',
ref: 'e1',
},
})).toContainTextContent(`### Result
"red"`);
});
test('browser_evaluate (error)', async ({ client, server }) => {
expect(await client.callTool({
name: 'browser_navigate',
arguments: { url: server.HELLO_WORLD },
})).toContainTextContent(`- Page Title: Title`);
const result = await client.callTool({
name: 'browser_evaluate',
arguments: {
function: '() => nonExistentVariable',
},
});
expect(result.isError).toBe(true);
expect(result.content?.[0]?.text).toContain('nonExistentVariable');
// Check for common error patterns across browsers
const errorText = result.content?.[0]?.text || '';
expect(errorText).toMatch(/not defined|Can't find variable/);
});