#include "unit/TestRunner.h"
#include "time/AudioClock.h"

static const unsigned long kAudioClockTestBlocksize = 256;

static void _audioClockTestSetup(void)
{
    initAudioClock();
}

static void _audioClockTestTeardown(void)
{
    freeAudioClock(getAudioClock());
}

static int _testInitAudioClock(void)
{
    AudioClock audioClock = getAudioClock();
    assertUnsignedLongEquals(ZERO_UNSIGNED_LONG, audioClock->currentFrame);
    assertFalse(audioClock->isPlaying);
    assertFalse(audioClock->transportChanged);
    return 0;
}

static int _testAdvanceAudioClock(void)
{
    AudioClock audioClock = getAudioClock();
    advanceAudioClock(audioClock, kAudioClockTestBlocksize);
    assertUnsignedLongEquals(kAudioClockTestBlocksize, audioClock->currentFrame);
    assert(audioClock->isPlaying);
    assert(audioClock->transportChanged);
    return 0;
}

static int _testStopAudioClock(void)
{
    AudioClock audioClock = getAudioClock();
    advanceAudioClock(audioClock, kAudioClockTestBlocksize);
    audioClockStop(audioClock);
    assertFalse(audioClock->isPlaying);
    assert(audioClock->transportChanged)
    return 0;
}

static int _testRestartAudioClock(void)
{
    AudioClock audioClock = getAudioClock();
    advanceAudioClock(audioClock, kAudioClockTestBlocksize);
    audioClockStop(audioClock);
    advanceAudioClock(audioClock, kAudioClockTestBlocksize);
    assert(audioClock->isPlaying);
    assert(audioClock->transportChanged);
    assertUnsignedLongEquals(kAudioClockTestBlocksize * 2, audioClock->currentFrame);
    return 0;
}

static int _testAdvanceClockMulitpleTimes(void)
{
    AudioClock audioClock = getAudioClock();
    int i;

    for (i = 0; i < 100; i++) {
        advanceAudioClock(audioClock, kAudioClockTestBlocksize);
    }

    assert(audioClock->isPlaying);
    assertFalse(audioClock->transportChanged);
    assertUnsignedLongEquals(kAudioClockTestBlocksize * 100, audioClock->currentFrame);
    return 0;
}

TestSuite addAudioClockTests(void);
TestSuite addAudioClockTests(void)
{
    TestSuite testSuite = newTestSuite("AudioClock", _audioClockTestSetup, _audioClockTestTeardown);
    addTest(testSuite, "Initialization", _testInitAudioClock);
    addTest(testSuite, "AdvanceClock", _testAdvanceAudioClock);
    addTest(testSuite, "StopClock", _testStopAudioClock);
    addTest(testSuite, "RestartClock", _testRestartAudioClock);
    addTest(testSuite, "MultipleAdvance", _testAdvanceClockMulitpleTimes);
    return testSuite;
}