mirror of
https://github.com/react/react-native-devtools-frontend.git
synced 2026-10-07 04:26:32 +08:00
Nikolay Vitkov
1f7b38eb44
Proposal is stage 4 https://github.com/tc39/proposal-promise-with-resolvers?tab=readme-ov-file Shipped as part of Chrome 119 Bug: none Change-Id: Ia61c2710ad8dc3c1c57ea00ed5f187a77cc3eaad Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/5823908 Auto-Submit: Nikolay Vitkov <nvitkov@chromium.org> Commit-Queue: Philip Pfaffe <pfaffe@chromium.org> Commit-Queue: Nikolay Vitkov <nvitkov@chromium.org> Reviewed-by: Philip Pfaffe <pfaffe@chromium.org>
64 lines
2.7 KiB
TypeScript
64 lines
2.7 KiB
TypeScript
// Copyright 2023 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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import * as SDK from '../../core/sdk/sdk.js';
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import * as Formatter from '../formatter/formatter.js';
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import * as SourceMapScopes from '../source_map_scopes/source_map_scopes.js';
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import * as TextUtils from '../text_utils/text_utils.js';
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describe('ScopeTreeCache', () => {
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describe('scopeTreeForScript', () => {
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const {scopeTreeForScript} = SourceMapScopes.ScopeTreeCache;
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let javaScriptScopeTreeStub: sinon.SinonStub;
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let script: SDK.Script.Script;
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beforeEach(() => {
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javaScriptScopeTreeStub = sinon.stub(Formatter.FormatterWorkerPool.formatterWorkerPool(), 'javaScriptScopeTree');
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script = sinon.createStubInstance(
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SDK.Script.Script,
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{requestContentData: Promise.resolve(new TextUtils.ContentData.ContentData('', false, 'text/javascript'))});
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});
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it('requests the scope tree once for a script', async () => {
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const scopeTree = {start: 0, end: 20, variables: [], children: []};
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javaScriptScopeTreeStub.returns(Promise.resolve(scopeTree));
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const actualScopeTree1 = await scopeTreeForScript(script);
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const actualScopeTree2 = await scopeTreeForScript(script);
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assert.isTrue(javaScriptScopeTreeStub.calledOnce);
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assert.strictEqual(actualScopeTree1, scopeTree);
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assert.strictEqual(actualScopeTree2, scopeTree);
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});
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it('requests the scope tree once for a script that fails to parse', async () => {
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javaScriptScopeTreeStub.returns(null);
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const actualScopeTree1 = await scopeTreeForScript(script);
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const actualScopeTree2 = await scopeTreeForScript(script);
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assert.isTrue(javaScriptScopeTreeStub.calledOnce);
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assert.isNull(actualScopeTree1);
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assert.isNull(actualScopeTree2);
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});
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it('requests the scope tree once for a script, even if the first request is not done yet', async () => {
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const scopeTree = {start: 0, end: 20, variables: [], children: []};
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const {promise: scopeTreePromise, resolve: scopeTreeResolve} =
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Promise.withResolvers<Formatter.FormatterWorkerPool.ScopeTreeNode|null>();
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javaScriptScopeTreeStub.returns(scopeTreePromise);
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const scopeTreePromise1 = scopeTreeForScript(script);
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const scopeTreePromise2 = scopeTreeForScript(script);
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scopeTreeResolve(scopeTree);
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const [actualScopeTree1, actualScopeTree2] = await Promise.all([scopeTreePromise1, scopeTreePromise2]);
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assert.isTrue(javaScriptScopeTreeStub.calledOnce);
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assert.strictEqual(actualScopeTree1, scopeTree);
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assert.strictEqual(actualScopeTree2, scopeTree);
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});
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});
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});
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