#include "../../src/ErrorSimulator.hpp"
#include "../Tests.hpp"
#include "core/Clock.hpp"
#include "core/Test.hpp"

using Core::Clock;

static void testUpdate() {
    Clock c;
    TEST_TRUE(c.update() == 0);
    TEST_TRUE(c.update() >= 0);
    TEST_TRUE(c.update() >= 0);
    TEST_TRUE(c.update() >= 0);
}

static void testUpdatesPerSecond() {
    Clock c;
    for(int i = 0; i < 1000; i++) {
        TEST_TRUE(c.update() >= 0);
    }
    TEST_TRUE(c.getUpdatesPerSecond() > 0.0f);
}

static void testSleep(i64 nanos) {
    Clock c;
    TEST_TRUE(c.update() >= 0);
    TEST_FALSE(Clock::sleepNanos(nanos));
    i64 n = c.update();
    TEST_TRUE(n >= nanos && n <= nanos * 13 / 10);
}

static void testSleepMillis(i64 millis) {
    Clock c;
    TEST_TRUE(c.update() >= 0);
    TEST_FALSE(Clock::sleepMillis(millis));
    i64 n = c.update();
    i64 nanos = millis * 1'000'000;
    TEST_TRUE(n >= nanos && n <= nanos * 13 / 10);
}

static void testFail() {
    Clock c;
#ifdef ERROR_SIMULATOR
    failStepThrow = 1;
    TEST(-1l, c.update());
    failStepThrow = 1;
    TEST(-1l, Clock::getNanos());
    failStepThrow = 1;
    TEST_TRUE(Clock::sleepMillis(5));
    failStepThrow = 0;
#endif
}

void testClock(bool light) {
    testUpdate();
    testUpdatesPerSecond();
    testSleep(light ? 5'000'000 : 50'000'000);
    testSleep(light ? 50'000'000 : 1'300'000'000);
    testSleepMillis(light ? 5 : 50);
    testSleepMillis(light ? 50 : 1300);
    testFail();
}