src/testcases/ConditionTest.cpp

#include "ConditionTest.h"

#include <iostream>

CPPUNIT_TEST_SUITE_REGISTRATION(ConditionTest);

using namespace std;


// ConditionChecker

ConditionTest::ConditionChecker::ConditionChecker(bool waitFor) : Thread(false, false, 0, -4) {
    resource = 0;
    this->waitFor = waitFor;
}

int ConditionTest::ConditionChecker::Main() {
    condition.WaitAndUnlockIf(!waitFor);
    resource++;
}


// ConditionSetter

ConditionTest::ConditionSetter::ConditionSetter(Condition* condition, bool toSet) : Thread(false, false, 0, -4) {
    resource = 0;
    this->toSet = toSet;
    this->condition = condition;
}

int ConditionTest::ConditionSetter::Main() {
    condition->Set(toSet);
    resource++;
}


// ConditionCheckerLocking

Condition ConditionTest::ConditionCheckerLocking::staticcondition; // we sheare the same Condition object between all instances of ConditionCheckerLocking

ConditionTest::ConditionCheckerLocking::ConditionCheckerLocking(bool waitFor) : ConditionChecker(waitFor) {
    doUnlock = false;
}

int ConditionTest::ConditionCheckerLocking::Main() {
    staticcondition.WaitIf(!waitFor);
    resource++;
    while (!doUnlock) {
                usleep(1000); // sleep until ordered to unlock the condition again
#if CONFIG_PTHREAD_TESTCANCEL
                TestCancel();
#endif
        }
    staticcondition.Unlock();
}


// ConditionTest

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

void ConditionTest::setUp() {
}

void ConditionTest::tearDown() {
}


// Check if Condition class doesn't block if desired condition is already reached
void ConditionTest::testDoesntBlockOnDesiredCondtion() {
    ConditionChecker t(false);
    t.SignalStartThread();
    usleep(200000); // wait 200ms
    CPPUNIT_ASSERT(t.resource == 1);
}

// Check if Condition class blocks if desired condition is not alredy reached
void ConditionTest::testBlocksIfNotDesiredCondition() {
    ConditionChecker t(true);
    t.SignalStartThread();
    usleep(400000); // wait 400ms
    CPPUNIT_ASSERT(t.resource == 0);
}

// Check if Condition class blocks until desired condition is reached
void ConditionTest::testBlocksUntilDesiredCondition() {
    ConditionChecker checker(true); // let that thread wait until condition equals 'true'
    ConditionSetter  setter(&checker.condition, true); // let this thread set the condition to 'true'
    checker.SignalStartThread();
    usleep(50000); // wait 50ms
    CPPUNIT_ASSERT(checker.resource == 0); // check if 'checker' thread has not passed the WaitAndUnlockIf() point yet
    setter.SignalStartThread();
    usleep(100000); // wait 100ms
    CPPUNIT_ASSERT(checker.resource == 1); // check if 'checker' thread passed the WaitAndUnlockIf() point
}

// Check if the WaitIf() call blocks concurrent threads until the first WaitIf() caller calls Unlock()
void ConditionTest::testWaitIFBlocksConcurrentThread() {
    // if the following three tests fail, then it doesn't make sense to continue with the actual one here
    testDoesntBlockOnDesiredCondtion();
    testBlocksIfNotDesiredCondition();
    testBlocksUntilDesiredCondition();

    // actual new test
    ConditionCheckerLocking checker1(false);
    ConditionCheckerLocking checker2(false);
    checker1.SignalStartThread();
    usleep(200000); // wait 200ms
    CPPUNIT_ASSERT(checker1.resource == 1);
    checker2.SignalStartThread();
    usleep(200000); // wait 200ms
    CPPUNIT_ASSERT(checker2.resource == 0); // check if condition locked by 'checker1'

    // now order 'checker1' thread to Unlock() the condition again
    checker1.doUnlock = true;
    usleep(200000); // wait 200ms
    CPPUNIT_ASSERT(checker2.resource == 1); // check if condition was unlocked by 'checker1'
}
1	#include "ConditionTest.h"
2
3	#include <iostream>
4
5	CPPUNIT_TEST_SUITE_REGISTRATION(ConditionTest);
6
7	using namespace std;
8
9
10	// ConditionChecker
11
12	ConditionTest::ConditionChecker::ConditionChecker(bool waitFor) : Thread(false, false, 0, -4) {
13	resource = 0;
14	this->waitFor = waitFor;
15	}
16
17	int ConditionTest::ConditionChecker::Main() {
18	condition.WaitAndUnlockIf(!waitFor);
19	resource++;
20	}
21
22
23	// ConditionSetter
24
25	ConditionTest::ConditionSetter::ConditionSetter(Condition* condition, bool toSet) : Thread(false, false, 0, -4) {
26	resource = 0;
27	this->toSet = toSet;
28	this->condition = condition;
29	}
30
31	int ConditionTest::ConditionSetter::Main() {
32	condition->Set(toSet);
33	resource++;
34	}
35
36
37	// ConditionCheckerLocking
38
39	Condition ConditionTest::ConditionCheckerLocking::staticcondition; // we sheare the same Condition object between all instances of ConditionCheckerLocking
40
41	ConditionTest::ConditionCheckerLocking::ConditionCheckerLocking(bool waitFor) : ConditionChecker(waitFor) {
42	doUnlock = false;
43	}
44
45	int ConditionTest::ConditionCheckerLocking::Main() {
46	staticcondition.WaitIf(!waitFor);
47	resource++;
48	while (!doUnlock) {
49	usleep(1000); // sleep until ordered to unlock the condition again
50	#if CONFIG_PTHREAD_TESTCANCEL
51	TestCancel();
52	#endif
53	}
54	staticcondition.Unlock();
55	}
56
57
58	// ConditionTest
59
60	void ConditionTest::printTestSuiteName() {
61	cout << "\b \nRunning Condition Tests: " << flush;
62	}
63
64	void ConditionTest::setUp() {
65	}
66
67	void ConditionTest::tearDown() {
68	}
69
70
71	// Check if Condition class doesn't block if desired condition is already reached
72	void ConditionTest::testDoesntBlockOnDesiredCondtion() {
73	ConditionChecker t(false);
74	t.SignalStartThread();
75	usleep(200000); // wait 200ms
76	CPPUNIT_ASSERT(t.resource == 1);
77	}
78
79	// Check if Condition class blocks if desired condition is not alredy reached
80	void ConditionTest::testBlocksIfNotDesiredCondition() {
81	ConditionChecker t(true);
82	t.SignalStartThread();
83	usleep(400000); // wait 400ms
84	CPPUNIT_ASSERT(t.resource == 0);
85	}
86
87	// Check if Condition class blocks until desired condition is reached
88	void ConditionTest::testBlocksUntilDesiredCondition() {
89	ConditionChecker checker(true); // let that thread wait until condition equals 'true'
90	ConditionSetter setter(&checker.condition, true); // let this thread set the condition to 'true'
91	checker.SignalStartThread();
92	usleep(50000); // wait 50ms
93	CPPUNIT_ASSERT(checker.resource == 0); // check if 'checker' thread has not passed the WaitAndUnlockIf() point yet
94	setter.SignalStartThread();
95	usleep(100000); // wait 100ms
96	CPPUNIT_ASSERT(checker.resource == 1); // check if 'checker' thread passed the WaitAndUnlockIf() point
97	}
98
99	// Check if the WaitIf() call blocks concurrent threads until the first WaitIf() caller calls Unlock()
100	void ConditionTest::testWaitIFBlocksConcurrentThread() {
101	// if the following three tests fail, then it doesn't make sense to continue with the actual one here
102	testDoesntBlockOnDesiredCondtion();
103	testBlocksIfNotDesiredCondition();
104	testBlocksUntilDesiredCondition();
105
106	// actual new test
107	ConditionCheckerLocking checker1(false);
108	ConditionCheckerLocking checker2(false);
109	checker1.SignalStartThread();
110	usleep(200000); // wait 200ms
111	CPPUNIT_ASSERT(checker1.resource == 1);
112	checker2.SignalStartThread();
113	usleep(200000); // wait 200ms
114	CPPUNIT_ASSERT(checker2.resource == 0); // check if condition locked by 'checker1'
115
116	// now order 'checker1' thread to Unlock() the condition again
117	checker1.doUnlock = true;
118	usleep(200000); // wait 200ms
119	CPPUNIT_ASSERT(checker2.resource == 1); // check if condition was unlocked by 'checker1'
120	}