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https://github.com/facebook/react-native.git
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Joshua Gross
967eeff86e
Summary: Add unit tests for Layout Animations. This first batch generates a random mutation, then animates it to completion. I found one issue with UPDATE+REMOVE+INSERT animation consistency. That shouldn't cause any crashes in production, but is a chance to improve consistency of mutations overall - and could in theory point to memory corruption, though it's somewhat unlikely. I ran with randomized seeds, found issues, fixed them, re-ran to ensure issues were fixed, rinsed and repeated. At the end I was able to run dozens of times (with random seeds) and found nothing. The next step is to repeatedly generate mutations that conflict with ongoing animations. Changelog: [Internal] Reviewed By: sammy-SC Differential Revision: D28343750 fbshipit-source-id: c1c60d89a31be3ac05d57482f0af3c482b866abe
30 lines
579 B
C++
30 lines
579 B
C++
/*
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* Copyright (c) Facebook, Inc. and its 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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#pragma once
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#include <chrono>
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class MockClock {
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public:
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typedef std::chrono::
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time_point<std::chrono::steady_clock, std::chrono::nanoseconds>
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time_point;
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static time_point now() noexcept {
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return time_;
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}
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template <typename TDuration>
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static void advance_by(const TDuration duration) {
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time_ += duration;
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}
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private:
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static time_point time_;
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};
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