testing::AsyncTest Class Reference

Test class that allows the handling of asynchronous test objects. More...

#include <async_test.h>

Inheritance diagram for testing::AsyncTest:

Public Member Functions
void	triggerClearEvent (const std::string &event)
	Triggers a clear event. If a call to barricade is currently pending it will unblock as soon as all clear events are triggered. Else the event is put on the waitlist. This waitlist is emptied upon a call to barricade.
bool	barricade (const std::string &clear_event, const int timeout_ms=-1)
	Will block until the event given by clear_event is triggered or a timeout is reached. Unblocks immediately, if the event was on the waitlist.
bool	barricade (std::initializer_list< std::string > clear_events, const int timeout_ms=-1)
	Will block until all events given by clear_events are triggered or a timeout is reached. Events on the waitlist are taken into account, too.

Protected Attributes
std::mutex	m_
std::condition_variable	cv_
std::set< std::string >	clear_events_ {}
std::set< std::string >	waitlist_ {}

Detailed Description

Test class that allows the handling of asynchronous test objects.

The class provides the two basic functions AsyncTest::barricade and AsyncTest::triggerClearEvent. During the test setup gates between the steps with one or more clear events. Allow passing on by calling triggerClearEvent after a test.

Usage:
Suppose you want to test a function that calls another function asynchronously, like the following example:

void asyncCall(std::function<void()> fun)
{
    std::thread t(fun);
    t.detach();
}

You expect that fun gets called, so your test thread has to wait for the completion, else it would fail. This can be achieved via:

class MyTest : public testing::Test, public testing::AsyncTest
{
public:
    MOCK_METHOD0(myMethod, void());
};
 
TEST_F(MyTest, testCase)
{
    EXPECT_CALL(*this, myMethod()).Times(1).WillOnce(ACTION_OPEN_BARRIER_VOID("myMethod"));
    const int timeout_ms {100};
    asyncCall([this]{ myMethod(); });
    BARRIER("myMethod", timeout_ms) << "Timed-out waiting for myMethod call.";
}

Definition at line 69 of file async_test.h.

Member Function Documentation

barricade() [1/2]

bool testing::AsyncTest::barricade ( const std::string &  clear_event, const int  timeout_ms = -1  )

inline

Will block until the event given by clear_event is triggered or a timeout is reached. Unblocks immediately, if the event was on the waitlist.

Parameters

clear_event	Event that allows the test to pass on
timeout_ms	Timeout [ms] (optional).

Returns

True if the event was triggered, false otherwise.

Definition at line 134 of file async_test.h.

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barricade() [2/2]

bool testing::AsyncTest::barricade ( std::initializer_list< std::string >  clear_events, const int  timeout_ms = -1  )

inline

Will block until all events given by clear_events are triggered or a timeout is reached. Events on the waitlist are taken into account, too.

Parameters

clear_events	List of events that allow the test to pass on
timeout_ms	Timeout [ms] (optional).

Returns

True if all events were triggered, false otherwise.

Definition at line 139 of file async_test.h.

triggerClearEvent()

void testing::AsyncTest::triggerClearEvent ( const std::string &  event )

inline

Triggers a clear event. If a call to barricade is currently pending it will unblock as soon as all clear events are triggered. Else the event is put on the waitlist. This waitlist is emptied upon a call to barricade.

Parameters

event

The event that is triggered

Definition at line 118 of file async_test.h.

Member Data Documentation

clear_events_

std::set<std::string> testing::AsyncTest::clear_events_ {}

protected

Definition at line 103 of file async_test.h.

cv_

std::condition_variable testing::AsyncTest::cv_

protected

Definition at line 102 of file async_test.h.

m_

std::mutex testing::AsyncTest::m_

protected

Definition at line 101 of file async_test.h.

waitlist_

std::set<std::string> testing::AsyncTest::waitlist_ {}

protected

Definition at line 104 of file async_test.h.

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The documentation for this class was generated from the following file:

• moveit_planners/pilz_industrial_motion_planner_testutils/include/pilz_industrial_motion_planner_testutils/async_test.h