WillEqualTest.cpp File Reference

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

Go to the source code of this file.

Functions
	TEST (WillEqual, basic)

Function Documentation

TEST	(	WillEqual	,
		basic
	)

Definition at line 22 of file WillEqualTest.cpp.

References EXPECT_FALSE, EXPECT_TRUE, folly::Promise< T >::getFuture(), folly::gen::move, and folly::Promise< T >::setValue().

                       {
  // both p1 and p2 already fulfilled
  {
    Promise<int> p1;
    Promise<int> p2;
    p1.setValue(27);
    p2.setValue(27);
    auto f1 = p1.getFuture();
    auto f2 = p2.getFuture();
    EXPECT_TRUE(f1.willEqual(f2).get());
  }
  {
    Promise<int> p1;
    Promise<int> p2;
    p1.setValue(27);
    p2.setValue(36);
    auto f1 = p1.getFuture();
    auto f2 = p2.getFuture();
    EXPECT_FALSE(f1.willEqual(f2).get());
  }
  // both p1 and p2 not yet fulfilled
  {
    Promise<int> p1;
    Promise<int> p2;
    auto f1 = p1.getFuture();
    auto f2 = p2.getFuture();
    auto f3 = f1.willEqual(f2);
    p1.setValue(27);
    p2.setValue(27);
    EXPECT_TRUE(std::move(f3).get());
  }
  {
    Promise<int> p1;
    Promise<int> p2;
    auto f1 = p1.getFuture();
    auto f2 = p2.getFuture();
    auto f3 = f1.willEqual(f2);
    p1.setValue(27);
    p2.setValue(36);
    EXPECT_FALSE(std::move(f3).get());
  }
  // p1 already fulfilled, p2 not yet fulfilled
  {
    Promise<int> p1;
    Promise<int> p2;
    p1.setValue(27);
    auto f1 = p1.getFuture();
    auto f2 = p2.getFuture();
    auto f3 = f1.willEqual(f2);
    p2.setValue(27);
    EXPECT_TRUE(std::move(f3).get());
  }
  {
    Promise<int> p1;
    Promise<int> p2;
    p1.setValue(27);
    auto f1 = p1.getFuture();
    auto f2 = p2.getFuture();
    auto f3 = f1.willEqual(f2);
    p2.setValue(36);
    EXPECT_FALSE(std::move(f3).get());
  }
  // p2 already fulfilled, p1 not yet fulfilled
  {
    Promise<int> p1;
    Promise<int> p2;
    p2.setValue(27);
    auto f1 = p1.getFuture();
    auto f2 = p2.getFuture();
    auto f3 = f1.willEqual(f2);
    p1.setValue(27);
    EXPECT_TRUE(std::move(f3).get());
  }
  {
    Promise<int> p1;
    Promise<int> p2;
    p2.setValue(36);
    auto f1 = p1.getFuture();
    auto f2 = p2.getFuture();
    auto f3 = f1.willEqual(f2);
    p1.setValue(27);
    EXPECT_FALSE(std::move(f3).get());
  }
}