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https://github.com/facebook/react-native.git
synced 2025-11-01 09:14:26 +00:00
Rob Hogan
8e0168fe9d
Summary: This test was causing uncaught promise rejections, because the mocked `symbolicateStackTrace` in this test returns a different type from the real one, causing `LogBoxSymbolication`'s unawaited, cached promises to reject. This wasn't picked up as a test failure because our `promise` polyfill silently swallows uncaught rejections, but it does cause a failure if we use native promises in tests. Changelog: [Internal][Fixed] - Fix LogBoxSymbolication-test.js Reviewed By: huntie Differential Revision: D39418412 fbshipit-source-id: 0be8f1551c4a58dc47faf1597caf47271af40af2
58 lines
1.6 KiB
JavaScript
58 lines
1.6 KiB
JavaScript
/**
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* Copyright (c) Meta Platforms, Inc. and affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @emails oncall+react_native
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* @format
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* @flow
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*/
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'use strict';
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import type {StackFrame} from '../../../Core/NativeExceptionsManager';
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import type {SymbolicatedStackTrace} from '../../../Core/Devtools/symbolicateStackTrace';
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jest.mock('../../../Core/Devtools/symbolicateStackTrace');
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const LogBoxSymbolication = require('../LogBoxSymbolication');
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const symbolicateStackTrace: JestMockFn<
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$ReadOnlyArray<Array<StackFrame>>,
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Promise<SymbolicatedStackTrace>,
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> = (require('../../../Core/Devtools/symbolicateStackTrace'): any);
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const createStack = (methodNames: Array<string>) =>
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methodNames.map(methodName => ({
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column: null,
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file: 'file://path/to/file.js',
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lineNumber: 1,
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methodName,
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}));
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describe('LogBoxSymbolication', () => {
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beforeEach(() => {
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jest.resetModules();
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symbolicateStackTrace.mockImplementation(async stack => ({
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stack,
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codeFrame: null,
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}));
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});
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it('symbolicates different stacks', () => {
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LogBoxSymbolication.symbolicate(createStack(['A', 'B', 'C']));
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LogBoxSymbolication.symbolicate(createStack(['D', 'E', 'F']));
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expect(symbolicateStackTrace.mock.calls.length).toBe(2);
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});
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it('batch symbolicates equivalent stacks', () => {
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const stack = createStack(['A', 'B', 'C']);
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LogBoxSymbolication.symbolicate(stack);
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LogBoxSymbolication.symbolicate(stack);
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expect(symbolicateStackTrace.mock.calls.length).toBe(1);
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});
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});
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