src/testcases/ThreadTest.cpp

#include "ThreadTest.h"

#include <iostream>

CPPUNIT_TEST_SUITE_REGISTRATION(ThreadTest);

using namespace std;


// DummyThread

ThreadTest::DummyThread::DummyThread() : Thread(false, 0, -4) {
    wasRunning = false;
}

int ThreadTest::DummyThread::Main() {
    wasRunning = true;
    while (true) someVariable = -1;
}


// HelperThread

ThreadTest::HelperThread::HelperThread(DummyThread* pDummyThread) : Thread(false, 0, -4) {
    returnedFromDummyStop = false;
    this->pDummyThread = pDummyThread;
}

int ThreadTest::HelperThread::Main() {
    pDummyThread->StopThread();
    pDummyThread->someVariable = 0; // we set this to another value than -1 so we can check if the DummyThread was still running
    returnedFromDummyStop = true;
}

bool ThreadTest::HelperThread::dummyThreadWasNotRunningAnymoreAfter_StopThread_call() {
    return (pDummyThread->someVariable == 0);
}


// WaitingThread

ThreadTest::WaitingThread::WaitingThread() : Thread(false, 0, -4) {
}

int ThreadTest::WaitingThread::Main() {
    while (true) condition.WaitIf(false);
}


// ThreadTest

void ThreadTest::printTestSuiteName() {
    cout << "\b \nRunning Thread Tests: " << flush;
}

// Check if Thread class actually deploys a thread
void ThreadTest::testThreadRunning() {
    dummythread.StartThread();
    usleep(25000); // wait 25ms
    CPPUNIT_ASSERT(dummythread.wasRunning);
    CPPUNIT_ASSERT(dummythread.IsRunning());
}

// Check if SignalStopThread() method actually stops the thread
void ThreadTest::testSignalStopThread() {
    dummythread.SignalStopThread();
    usleep(40000); // wait 40ms
    CPPUNIT_ASSERT(!dummythread.IsRunning());
}

// Check if the thread can be relaunched
void ThreadTest::testRelaunchThread() {
    dummythread.StartThread();
    usleep(25000); // wait 25ms
    CPPUNIT_ASSERT(dummythread.wasRunning);
    CPPUNIT_ASSERT(dummythread.IsRunning());
    dummythread.StopThread();
    usleep(25000); // wait 25ms
    dummythread.wasRunning = false;
    dummythread.StartThread();
    usleep(25000); // wait 25ms
    CPPUNIT_ASSERT(dummythread.wasRunning);
    CPPUNIT_ASSERT(dummythread.IsRunning());
}

// Check if the StopThread() method actually stops the thread and doesn't freeze the calling thread which wants to stop it and also check if the thread was still running after the StopThread() method was called.
void ThreadTest::testStopThread() {
    HelperThread* phelper = new HelperThread(&dummythread);
    phelper->StartThread(); // let the helper thread kill the dummy thread
    usleep(25000); // wait 25ms
    CPPUNIT_ASSERT(!dummythread.IsRunning());
    CPPUNIT_ASSERT(phelper->returnedFromDummyStop);
    bool wasnotrunning = phelper->dummyThreadWasNotRunningAnymoreAfter_StopThread_call();
    if (wasnotrunning && phelper) delete phelper;
    CPPUNIT_ASSERT(wasnotrunning);
}

// Check if the thread can be stopped even when it's waiting for a condition
void ThreadTest::testThreadKillableWhenWaiting() {
    WaitingThread* pwaitingthread = new WaitingThread;
    pwaitingthread->SignalStartThread();
    usleep(150000); // wait 150ms
    CPPUNIT_ASSERT(pwaitingthread->IsRunning());
    pwaitingthread->SignalStopThread();
    for (uint trials = 400; trials; trials--) {
        bool success = !pwaitingthread->IsRunning();
        if (success) {
            usleep(15000); // wait 15ms
            delete pwaitingthread;
            CPPUNIT_ASSERT(true); // success
            return;
        }
        else usleep(150000); // wait 150ms and try again
    }
    CPPUNIT_ASSERT(false); // failure
}
1	#include "ThreadTest.h"
2
3	#include <iostream>
4
5	CPPUNIT_TEST_SUITE_REGISTRATION(ThreadTest);
6
7	using namespace std;
8
9
10	// DummyThread
11
12	ThreadTest::DummyThread::DummyThread() : Thread(false, 0, -4) {
13	wasRunning = false;
14	}
15
16	int ThreadTest::DummyThread::Main() {
17	wasRunning = true;
18	while (true) someVariable = -1;
19	}
20
21
22	// HelperThread
23
24	ThreadTest::HelperThread::HelperThread(DummyThread* pDummyThread) : Thread(false, 0, -4) {
25	returnedFromDummyStop = false;
26	this->pDummyThread = pDummyThread;
27	}
28
29	int ThreadTest::HelperThread::Main() {
30	pDummyThread->StopThread();
31	pDummyThread->someVariable = 0; // we set this to another value than -1 so we can check if the DummyThread was still running
32	returnedFromDummyStop = true;
33	}
34
35	bool ThreadTest::HelperThread::dummyThreadWasNotRunningAnymoreAfter_StopThread_call() {
36	return (pDummyThread->someVariable == 0);
37	}
38
39
40	// WaitingThread
41
42	ThreadTest::WaitingThread::WaitingThread() : Thread(false, 0, -4) {
43	}
44
45	int ThreadTest::WaitingThread::Main() {
46	while (true) condition.WaitIf(false);
47	}
48
49
50	// ThreadTest
51
52	void ThreadTest::printTestSuiteName() {
53	cout << "\b \nRunning Thread Tests: " << flush;
54	}
55
56	// Check if Thread class actually deploys a thread
57	void ThreadTest::testThreadRunning() {
58	dummythread.StartThread();
59	usleep(25000); // wait 25ms
60	CPPUNIT_ASSERT(dummythread.wasRunning);
61	CPPUNIT_ASSERT(dummythread.IsRunning());
62	}
63
64	// Check if SignalStopThread() method actually stops the thread
65	void ThreadTest::testSignalStopThread() {
66	dummythread.SignalStopThread();
67	usleep(40000); // wait 40ms
68	CPPUNIT_ASSERT(!dummythread.IsRunning());
69	}
70
71	// Check if the thread can be relaunched
72	void ThreadTest::testRelaunchThread() {
73	dummythread.StartThread();
74	usleep(25000); // wait 25ms
75	CPPUNIT_ASSERT(dummythread.wasRunning);
76	CPPUNIT_ASSERT(dummythread.IsRunning());
77	dummythread.StopThread();
78	usleep(25000); // wait 25ms
79	dummythread.wasRunning = false;
80	dummythread.StartThread();
81	usleep(25000); // wait 25ms
82	CPPUNIT_ASSERT(dummythread.wasRunning);
83	CPPUNIT_ASSERT(dummythread.IsRunning());
84	}
85
86	// Check if the StopThread() method actually stops the thread and doesn't freeze the calling thread which wants to stop it and also check if the thread was still running after the StopThread() method was called.
87	void ThreadTest::testStopThread() {
88	HelperThread* phelper = new HelperThread(&dummythread);
89	phelper->StartThread(); // let the helper thread kill the dummy thread
90	usleep(25000); // wait 25ms
91	CPPUNIT_ASSERT(!dummythread.IsRunning());
92	CPPUNIT_ASSERT(phelper->returnedFromDummyStop);
93	bool wasnotrunning = phelper->dummyThreadWasNotRunningAnymoreAfter_StopThread_call();
94	if (wasnotrunning && phelper) delete phelper;
95	CPPUNIT_ASSERT(wasnotrunning);
96	}
97
98	// Check if the thread can be stopped even when it's waiting for a condition
99	void ThreadTest::testThreadKillableWhenWaiting() {
100	WaitingThread* pwaitingthread = new WaitingThread;
101	pwaitingthread->SignalStartThread();
102	usleep(150000); // wait 150ms
103	CPPUNIT_ASSERT(pwaitingthread->IsRunning());
104	pwaitingthread->SignalStopThread();
105	for (uint trials = 400; trials; trials--) {
106	bool success = !pwaitingthread->IsRunning();
107	if (success) {
108	usleep(15000); // wait 15ms
109	delete pwaitingthread;
110	CPPUNIT_ASSERT(true); // success
111	return;
112	}
113	else usleep(150000); // wait 150ms and try again
114	}
115	CPPUNIT_ASSERT(false); // failure
116	}