MapTest.cpp File Reference

#include <folly/futures/Future.h>
#include <folly/portability/GTest.h>

Go to the source code of this file.

Functions
	TEST (Map, basic)
	TEST (Map, executor)
	TEST (Map, semifuture)

Function Documentation

TEST	(	Map	,
		basic
	)

Definition at line 22 of file MapTest.cpp.

References c, folly::collect(), EXPECT_EQ, EXPECT_TRUE, folly::Promise< T >::getFuture(), i, folly::futures::map(), and folly::Promise< T >::setValue().

                 {
  Promise<int> p1;
  Promise<int> p2;
  Promise<int> p3;

  std::vector<Future<int>> fs;
  fs.push_back(p1.getFuture());
  fs.push_back(p2.getFuture());
  fs.push_back(p3.getFuture());

  int c = 0;
  std::vector<Future<Unit>> fs2 = futures::map(fs, [&](int i) { c += i; });

  // Ensure we call the callbacks as the futures complete regardless of order
  p2.setValue(1);
  EXPECT_EQ(1, c);
  p3.setValue(1);
  EXPECT_EQ(2, c);
  p1.setValue(1);
  EXPECT_EQ(3, c);

  EXPECT_TRUE(collect(fs2).isReady());
}

TEST	(	Map	,
		executor
	)

Definition at line 46 of file MapTest.cpp.

References c, folly::collect(), EXPECT_EQ, EXPECT_TRUE, folly::Promise< T >::getFuture(), i, folly::futures::map(), and folly::Promise< T >::setValue().

                    {
  Promise<int> p1;
  Promise<int> p2;
  Promise<int> p3;
  folly::InlineExecutor exec;

  std::vector<Future<int>> fs;
  fs.push_back(p1.getFuture());
  fs.push_back(p2.getFuture());
  fs.push_back(p3.getFuture());

  int c = 0;
  std::vector<Future<Unit>> fs2 =
      futures::map(exec, fs, [&](int i) { c += i; });

  // Ensure we call the callbacks as the futures complete regardless of order
  p2.setValue(1);
  EXPECT_EQ(1, c);
  p3.setValue(1);
  EXPECT_EQ(2, c);
  p1.setValue(1);
  EXPECT_EQ(3, c);

  EXPECT_TRUE(collect(fs2).isReady());
}

TEST	(	Map	,
		semifuture
	)

Definition at line 72 of file MapTest.cpp.

References c, folly::collect(), EXPECT_EQ, EXPECT_TRUE, folly::Promise< T >::getSemiFuture(), i, folly::futures::map(), and folly::Promise< T >::setValue().

                      {
  Promise<int> p1;
  Promise<int> p2;
  Promise<int> p3;
  folly::InlineExecutor exec;

  std::vector<SemiFuture<int>> fs;
  fs.push_back(p1.getSemiFuture());
  fs.push_back(p2.getSemiFuture());
  fs.push_back(p3.getSemiFuture());

  int c = 0;
  std::vector<Future<Unit>> fs2 =
      futures::map(exec, fs, [&](int i) { c += i; });

  // Ensure we call the callbacks as the futures complete regardless of order
  p2.setValue(1);
  EXPECT_EQ(1, c);
  p3.setValue(1);
  EXPECT_EQ(2, c);
  p1.setValue(1);
  EXPECT_EQ(3, c);

  EXPECT_TRUE(collect(fs2).isReady());
}