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#include <cppunit/extensions/HelperMacros.h>
#include <cassert>
#include <chrono>
#include <iostream>
#include "../src/semaphore.h"
std::chrono::nanoseconds dist(const std::chrono::duration<float>& a,
const std::chrono::duration<float>& b)
{
if(a > b)
{
return std::chrono::duration_cast<std::chrono::nanoseconds>(a - b);
}
return std::chrono::duration_cast<std::chrono::nanoseconds>(b - a);
}
class SemaphoreTest
: public CppUnit::TestFixture
{
CPPUNIT_TEST_SUITE(SemaphoreTest);
CPPUNIT_TEST(timeoutTest);
CPPUNIT_TEST_SUITE_END();
public:
void setUp() {}
void tearDown() {}
void timeoutTest()
{
Semaphore sem(0);
{
auto start = std::chrono::steady_clock::now();
bool res = sem.wait(std::chrono::milliseconds(1000));
CPPUNIT_ASSERT(!res);
auto stop = std::chrono::steady_clock::now();
CPPUNIT_ASSERT(dist((stop - start), std::chrono::milliseconds(1000))
< std::chrono::milliseconds(60));
}
{
auto start = std::chrono::steady_clock::now();
bool res = sem.wait(std::chrono::milliseconds(100));
CPPUNIT_ASSERT(!res);
auto stop = std::chrono::steady_clock::now();
CPPUNIT_ASSERT(dist((stop - start), std::chrono::milliseconds(100))
< std::chrono::milliseconds(60));
}
}
};
CPPUNIT_TEST_SUITE_REGISTRATION(SemaphoreTest);
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