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Diffstat (limited to 'tests/input/evdev/TestHelpers.h')
-rw-r--r-- | tests/input/evdev/TestHelpers.h | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/tests/input/evdev/TestHelpers.h b/tests/input/evdev/TestHelpers.h new file mode 100644 index 0000000..461db04 --- /dev/null +++ b/tests/input/evdev/TestHelpers.h @@ -0,0 +1,83 @@ +/* + * Copyright (C) 2015 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#ifndef ANDROID_TEST_HELPERS_H_ +#define ANDROID_TEST_HELPERS_H_ + +#include <future> +#include <thread> + +namespace android { + +/** + * Runs the given function after the specified delay. + * NOTE: if the std::future returned from std::async is not bound, this function + * will block until the task completes. This is almost certainly NOT what you + * want, so save the return value from delay_async into a variable: + * + * auto f = delay_async(100ms, []{ ALOGD("Hello world"); }); + */ +template<class Function, class Duration> +decltype(auto) delay_async(Duration&& delay, Function&& task) +{ + return std::async(std::launch::async, [=]{ std::this_thread::sleep_for(delay); task(); }); +} + +/** + * Creates and opens a temporary file at the given path. The file is unlinked + * and closed in the destructor. + */ +class TempFile { +public: + TempFile(const char* path); + ~TempFile(); + + // No copy or assign + TempFile(const TempFile&) = delete; + TempFile& operator=(const TempFile&) = delete; + + const char* getName() const { return mName; } + int getFd() const { return mFd; } + +private: + char* mName; + int mFd; +}; + +/** + * Creates a temporary directory that can create temporary files. The directory + * is emptied and deleted in the destructor. + */ +class TempDir { +public: + TempDir(); + ~TempDir(); + + // No copy or assign + TempDir(const TempDir&) = delete; + TempDir& operator=(const TempDir&) = delete; + + const char* getName() const { return mName; } + + TempFile* newTempFile(); + +private: + char* mName; +}; + +} // namespace android + +#endif // ANDROID_TEST_HELPERS_H_ |