ThreadedExecutorTest.cpp File Reference

#include <folly/executors/ThreadedExecutor.h>
#include <folly/Conv.h>
#include <folly/futures/Future.h>
#include <folly/gen/Base.h>
#include <folly/portability/GTest.h>

Go to the source code of this file.

Functions
	TEST_F (ThreadedExecutorTest, example)
	TEST_F (ThreadedExecutorTest, dtor_waits)
	TEST_F (ThreadedExecutorTest, many)
	TEST_F (ThreadedExecutorTest, many_sleeping_constant_time)
	TEST_F (ThreadedExecutorTest, many_sleeping_decreasing_time)

Function Documentation

TEST_F	(	ThreadedExecutorTest	,
		example
	)

Definition at line 29 of file ThreadedExecutorTest.cpp.

References EXPECT_EQ, folly::via(), and x.

                                      {
  folly::ThreadedExecutor x;
  auto ret = folly::via(&x)
                 .thenValue([&](auto&&) { return 42; })
                 .thenValue([&](int n) { return folly::to<std::string>(n); })
                 .get();

  EXPECT_EQ("42", ret);
}

TEST_F	(	ThreadedExecutorTest	,
		dtor_waits
	)

Definition at line 39 of file ThreadedExecutorTest.cpp.

References EXPECT_TRUE, and folly::via().

                                         {
  constexpr auto kDelay = std::chrono::milliseconds(100);
  auto x = std::make_unique<folly::ThreadedExecutor>();
  auto fut = folly::via(&*x, [&] { /* sleep override */
                                   std::this_thread::sleep_for(kDelay);
  });
  x = nullptr;

  EXPECT_TRUE(fut.isReady());
}

TEST_F	(	ThreadedExecutorTest	,
		many
	)

Definition at line 50 of file ThreadedExecutorTest.cpp.

References folly::collect(), EXPECT_EQ, i, k, folly::gen::map(), folly::via(), and x.

                                   {
  constexpr auto kNumTasks = 1024;
  folly::ThreadedExecutor x;
  auto rets =
      folly::collect(
          folly::gen::range<size_t>(0, kNumTasks) |
          folly::gen::map([&](size_t i) {
            return folly::via(&x)
                .thenValue([=](auto&&) { return i; })
                .thenValue([](size_t k) { return folly::to<std::string>(k); });
          }) |
          folly::gen::as<std::vector>())
          .get();

  EXPECT_EQ("42", rets[42]);
}

TEST_F	(	ThreadedExecutorTest	,
		many_sleeping_constant_time
	)

Definition at line 67 of file ThreadedExecutorTest.cpp.

References folly::collect(), EXPECT_EQ, i, k, folly::gen::map(), folly::via(), and x.

                                                          {
  constexpr auto kNumTasks = 256;
  constexpr auto kDelay = std::chrono::milliseconds(100);
  folly::ThreadedExecutor x;
  auto rets =
      folly::collect(
          folly::gen::range<size_t>(0, kNumTasks) |
          folly::gen::map([&](size_t i) {
            return folly::via(&x)
                .thenValue([=](auto&&) {
                  /* sleep override */ std::this_thread::sleep_for(kDelay);
                })
                .thenValue([=](auto&&) { return i; })
                .thenValue([](size_t k) { return folly::to<std::string>(k); });
          }) |
          folly::gen::as<std::vector>())
          .get();

  EXPECT_EQ("42", rets[42]);
}

TEST_F	(	ThreadedExecutorTest	,
		many_sleeping_decreasing_time
	)

Definition at line 88 of file ThreadedExecutorTest.cpp.

References folly::collect(), EXPECT_EQ, i, k, folly::gen::map(), folly::via(), and x.

                                                            {
  constexpr auto kNumTasks = 256;
  constexpr auto kDelay = std::chrono::milliseconds(100);
  folly::ThreadedExecutor x;
  auto rets =
      folly::collect(
          folly::gen::range<size_t>(0, kNumTasks) |
          folly::gen::map([&](size_t i) {
            return folly::via(&x)
                .thenValue([=](auto&&) {
                  auto delay = kDelay * (kNumTasks - i) / kNumTasks;
                  /* sleep override */ std::this_thread::sleep_for(delay);
                })
                .thenValue([=](auto&&) { return i; })
                .thenValue([](size_t k) { return folly::to<std::string>(k); });
          }) |
          folly::gen::as<std::vector>())
          .get();

  EXPECT_EQ("42", rets[42]);
}