SingletonTestGlobal.cpp File Reference

#include <memory>
#include <vector>
#include <folly/Benchmark.h>
#include <folly/Singleton.h>
#include <folly/portability/GTest.h>
#include <folly/test/SingletonTestStructs.h>

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Functions
	TEST (Singleton, BasicGlobalUsage)

Function Documentation

TEST	(	Singleton	,
		BasicGlobalUsage
	)

Definition at line 40 of file SingletonTestGlobal.cpp.

References Watchdog::creation_order(), folly::SingletonVault::destroyInstances(), EXPECT_EQ, EXPECT_GE, EXPECT_NE, folly::SingletonVault::singleton(), folly::size(), and folly::Singleton< T, Tag, VaultTag >::try_get().

                                  {
  EXPECT_EQ(Watchdog::creation_order().size(), 0);
  EXPECT_GE(SingletonVault::singleton()->registeredSingletonCount(), 1);
  EXPECT_EQ(SingletonVault::singleton()->livingSingletonCount(), 0);

  {
    std::shared_ptr<GlobalWatchdog> wd1 = Singleton<GlobalWatchdog>::try_get();
    EXPECT_NE(wd1, nullptr);
    EXPECT_EQ(Watchdog::creation_order().size(), 1);
    std::shared_ptr<GlobalWatchdog> wd2 = Singleton<GlobalWatchdog>::try_get();
    EXPECT_NE(wd2, nullptr);
    EXPECT_EQ(wd1.get(), wd2.get());
    EXPECT_EQ(Watchdog::creation_order().size(), 1);
  }

  SingletonVault::singleton()->destroyInstances();
  EXPECT_EQ(Watchdog::creation_order().size(), 0);
}