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83 lines
2.2 KiB
83 lines
2.2 KiB
/* |
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* Copyright (C) 2015 The Android Open Source Project |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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#ifndef ANDROID_TEST_HELPERS_H_ |
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#define ANDROID_TEST_HELPERS_H_ |
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#include <future> |
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#include <thread> |
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namespace android { |
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/** |
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* Runs the given function after the specified delay. |
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* NOTE: if the std::future returned from std::async is not bound, this function |
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* will block until the task completes. This is almost certainly NOT what you |
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* want, so save the return value from delay_async into a variable: |
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* |
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* auto f = delay_async(100ms, []{ ALOGD("Hello world"); }); |
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*/ |
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template<class Function, class Duration> |
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decltype(auto) delay_async(Duration&& delay, Function&& task) |
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{ |
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return std::async(std::launch::async, [=]{ std::this_thread::sleep_for(delay); task(); }); |
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} |
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/** |
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* Creates and opens a temporary file at the given path. The file is unlinked |
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* and closed in the destructor. |
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*/ |
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class TempFile { |
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public: |
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explicit TempFile(const char* path); |
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~TempFile(); |
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// No copy or assign |
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TempFile(const TempFile&) = delete; |
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TempFile& operator=(const TempFile&) = delete; |
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const char* getName() const { return mName; } |
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int getFd() const { return mFd; } |
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private: |
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char* mName; |
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int mFd; |
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}; |
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/** |
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* Creates a temporary directory that can create temporary files. The directory |
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* is emptied and deleted in the destructor. |
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*/ |
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class TempDir { |
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public: |
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TempDir(); |
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~TempDir(); |
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// No copy or assign |
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TempDir(const TempDir&) = delete; |
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TempDir& operator=(const TempDir&) = delete; |
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const char* getName() const { return mName; } |
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TempFile* newTempFile(); |
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private: |
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char* mName; |
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}; |
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} // namespace android |
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#endif // ANDROID_TEST_HELPERS_H_
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