chromedevtools--chrome-devtools-mcp
Nikolay Vitkov
82 行
2.7 KiB
TypeScript
82 行
2.7 KiB
TypeScript
/**
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* @license
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* Copyright 2025 Google LLC
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* SPDX-License-Identifier: Apache-2.0
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*/
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import assert from 'node:assert';
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import {describe, it} from 'node:test';
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import sinon from 'sinon';
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import type {TraceResult} from '../src/trace-processing/parse.js';
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import {withBrowser} from './utils.js';
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describe('McpContext', () => {
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it('list pages', async () => {
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await withBrowser(async (_response, context) => {
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const page = context.getSelectedPage();
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await page.setContent(`<!DOCTYPE html>
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<button>Click me</button><input type="text" value="Input">`);
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await context.createTextSnapshot();
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assert.ok(await context.getElementByUid('1_1'));
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await context.createTextSnapshot();
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try {
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await context.getElementByUid('1_1');
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assert.fail('not reached');
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} catch (err) {
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assert.strict(
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err.message,
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'This uid is coming from a stale snapshot. Call take_snapshot to get a fresh snapshot',
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);
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}
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});
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});
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it('can store and retrieve performance traces', async () => {
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await withBrowser(async (_response, context) => {
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const fakeTrace1 = {} as unknown as TraceResult;
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const fakeTrace2 = {} as unknown as TraceResult;
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context.storeTraceRecording(fakeTrace1);
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context.storeTraceRecording(fakeTrace2);
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assert.deepEqual(context.recordedTraces(), [fakeTrace1, fakeTrace2]);
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});
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});
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it('should update default timeout when cpu throttling changes', async () => {
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await withBrowser(async (_response, context) => {
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const page = await context.newPage();
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const timeoutBefore = page.getDefaultTimeout();
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context.setCpuThrottlingRate(2);
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const timeoutAfter = page.getDefaultTimeout();
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assert(timeoutBefore < timeoutAfter, 'Timeout was less then expected');
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});
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});
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it('should update default timeout when network conditions changes', async () => {
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await withBrowser(async (_response, context) => {
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const page = await context.newPage();
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const timeoutBefore = page.getDefaultNavigationTimeout();
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context.setNetworkConditions('Slow 3G');
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const timeoutAfter = page.getDefaultNavigationTimeout();
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assert(timeoutBefore < timeoutAfter, 'Timeout was less then expected');
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});
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});
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it('should call waitForEventsAfterAction with correct multipliers', async () => {
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await withBrowser(async (_response, context) => {
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const page = await context.newPage();
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context.setCpuThrottlingRate(2);
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context.setNetworkConditions('Slow 3G');
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const stub = sinon.spy(context, 'getWaitForHelper');
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await context.waitForEventsAfterAction(async () => {
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// trigger the waiting only
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});
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sinon.assert.calledWithExactly(stub, page, 2, 10);
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});
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});
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});
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