chrome-devtools-frontend/front_end/panels/sources/CoveragePlugin.test.ts

Chrome DevTools UI

// Copyright 2022 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

import * as Platform from '../../core/platform/platform.js';
import * as SDK from '../../core/sdk/sdk.js';
import * as Bindings from '../../models/bindings/bindings.js';
import * as Workspace from '../../models/workspace/workspace.js';
import {createTarget} from '../../testing/EnvironmentHelpers.js';
import {describeWithMockConnection} from '../../testing/MockConnection.js';
import {createContentProviderUISourceCode} from '../../testing/UISourceCodeHelpers.js';
import type * as SourceFrame from '../../ui/legacy/components/source_frame/source_frame.js';
import * as Coverage from '../coverage/coverage.js';

import * as Sources from './sources.js';

const {urlString} = Platform.DevToolsPath;

describeWithMockConnection('CoveragePlugin', () => {
  let target: SDK.Target.Target;
  let uiSourceCode: Workspace.UISourceCode.UISourceCode;
  let model: Coverage.CoverageModel.CoverageModel;
  let coverageInfo: Coverage.CoverageModel.URLCoverageInfo;
  const URL = urlString`test.js`;

  beforeEach(() => {
    const tabTarget = createTarget({type: SDK.Target.Type.TAB});
    createTarget({parentTarget: tabTarget, subtype: 'prerender'});
    target = createTarget({parentTarget: tabTarget});
    const workspace = Workspace.Workspace.WorkspaceImpl.instance();
    const targetManager = SDK.TargetManager.TargetManager.instance();
    const resourceMapping = new Bindings.ResourceMapping.ResourceMapping(targetManager, workspace);
    Bindings.DebuggerWorkspaceBinding.DebuggerWorkspaceBinding.instance({
      forceNew: true,
      resourceMapping,
      targetManager,
    });
    Bindings.CSSWorkspaceBinding.CSSWorkspaceBinding.instance({
      forceNew: true,
      resourceMapping,
      targetManager,
    });

    model = target.model(Coverage.CoverageModel.CoverageModel) as Coverage.CoverageModel.CoverageModel;
    coverageInfo = new Coverage.CoverageModel.URLCoverageInfo(URL);
    coverageInfo.addToSizes(9, 28);
    sinon.stub(model, 'getCoverageForUrl').withArgs(URL).returns(coverageInfo);
    ({uiSourceCode} = createContentProviderUISourceCode({url: URL, mimeType: 'text/javascript'}));
  });

  it('shows stats', () => {
    const coveragePlugin =
        new Sources.CoveragePlugin.CoveragePlugin(uiSourceCode, <SourceFrame.SourceFrame.Transformer>{});
    const [toolbarItem] = coveragePlugin.rightToolbarItems();

    assert.strictEqual('Show Details', toolbarItem.element.shadowRoot?.querySelector('button')?.title);
    assert.strictEqual('Coverage: 32.1%', toolbarItem.element.textContent);
  });

  it('updates stats', () => {
    const coveragePlugin =
        new Sources.CoveragePlugin.CoveragePlugin(uiSourceCode, <SourceFrame.SourceFrame.Transformer>{});
    const [toolbarItem] = coveragePlugin.rightToolbarItems();
    assert.strictEqual('Coverage: 32.1%', toolbarItem.element.textContent);

    coverageInfo.addToSizes(10, 2);
    assert.strictEqual('Coverage: 63.3%', toolbarItem.element.textContent);
  });

  it('resets stats', () => {
    const coveragePlugin =
        new Sources.CoveragePlugin.CoveragePlugin(uiSourceCode, <SourceFrame.SourceFrame.Transformer>{});
    const [toolbarItem] = coveragePlugin.rightToolbarItems();
    assert.strictEqual('Coverage: 32.1%', toolbarItem.element.textContent);

    model.dispatchEventToListeners(Coverage.CoverageModel.Events.CoverageReset);
    assert.strictEqual('Click to show Coverage Panel', toolbarItem.element.ariaLabel);
    assert.strictEqual('Coverage: n/a', toolbarItem.element.textContent);
  });
});