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/*----------------------------------------------------------
* HTBLA-Leonding / Klasse: n/a
* ---------------------------------------------------------
* Title: Implementation of UTs for the stopwatch
* Author: S. Schraml
* ----------------------------------------------------------
* Description:
* Tests functions of the stopwatch.
* ----------------------------------------------------------
*/
#include "test_stopwatch.h"
#include <stdio.h>
#include <string.h>
#include <math.h>
#include <time.h>
#include "shortcut.h"
#include "config.h"
#include "stopwatch.h"
static double measure_test_load() {
clock_t start = clock();
for(int i = 1; i < 500000; i++) {
sqrt(i * 2.0);
}
return ((double)(clock() - start) / CLOCKS_PER_SEC) * 1000.0;
}
/* ------------------------------------------------------------------- */
TEST(test_stopwatch_is_active__shall_provide_running_state) {
ASSERT_FALSE(stopwatch_is_active(), MSG("Expected initially inactive stopwatch"));
stopwatch_stop();
ASSERT_FALSE(stopwatch_is_active(), MSG("Expected still inactive stopwatch"));
stopwatch_start();
ASSERT_TRUE(stopwatch_is_active(), MSG("Expected active stopwatch"));
stopwatch_stop();
ASSERT_FALSE(stopwatch_is_active(), MSG("Expected inactive stopwatch"));
stopwatch_start();
ASSERT_TRUE(stopwatch_is_active(), MSG("Expected again active stopwatch"));
stopwatch_resume();
ASSERT_TRUE(stopwatch_is_active(), MSG("Expected still active stopwatch"));
stopwatch_stop();
ASSERT_FALSE(stopwatch_is_active(), MSG("Expected inactive stopwatch for the 2nd time"));
stopwatch_resume();
ASSERT_TRUE(stopwatch_is_active(), MSG("Expected active resumed stopwatch"));
stopwatch_stop();
ASSERT_FALSE(stopwatch_is_active(), MSG("Expected finally inactive stopwatch"));
}
TEST(test_stopwatch_start__shall_provide_elapsed_time) {
stopwatch_start();
double load_time_1 = measure_test_load();
double el_time_1 = stopwatch_get_elapsed_time() / 1000.0;
double load_time_2 = measure_test_load();
double el_time_2 = stopwatch_get_elapsed_time() / 1000.0;
stopwatch_stop();
ASSERT_TRUE(el_time_1 > 0.0, MSG("Expected that time proceeded for 1st measurement"));
ASSERT_EQUALS_TOLERANCE_STR(load_time_1, el_time_1, 0.04, MSG("Expected that time proceeded to %.3f, but is %.3f", load_time_1, el_time_1));
ASSERT_TRUE(el_time_2 > el_time_1, MSG("Expected that time proceeded for 2nd measurement"));
ASSERT_EQUALS_TOLERANCE_STR(load_time_1 + load_time_2, el_time_2, 0.08, MSG("Expected that time proceeded to %.3f, but is %.3f", load_time_1 + load_time_2, el_time_2));
}
TEST(test_stopwatch_start_stop__shall_provide_elapsed_time) {
stopwatch_start();
double load_time_1 = measure_test_load();
stopwatch_stop();
double el_time_1 = stopwatch_get_elapsed_time() / 1000.0;
measure_test_load();
double el_time_2 = stopwatch_get_elapsed_time() / 1000.0;
ASSERT_TRUE(el_time_1 > 0.0, MSG("Expected that time proceeded"));
ASSERT_EQUALS_TOLERANCE_STR(load_time_1, el_time_1, 0.04, MSG("Expected that time proceeded to %.3f, but is %.3f", load_time_1, el_time_1));
ASSERT_EQUALS_TOLERANCE_STR(el_time_1, el_time_2, 0.001, MSG("Expected that time is kept as %.3f, but is %.3f", el_time_1, el_time_2));
}
TEST(test_stopwatch_start_stop_resume__shall_provide_elapsed_time) {
stopwatch_start();
double load_time_1 = measure_test_load();
stopwatch_stop();
double el_time_1 = stopwatch_get_elapsed_time() / 1000.0;
measure_test_load();
double el_time_2 = stopwatch_get_elapsed_time() / 1000.0;
stopwatch_resume();
double load_time_2 = measure_test_load();
stopwatch_stop();
double el_time_3 = stopwatch_get_elapsed_time() / 1000.0;
ASSERT_TRUE(el_time_1 > 0.0, MSG("Expected that time proceeded"));
ASSERT_EQUALS_TOLERANCE_STR(load_time_1, el_time_1, 0.04, MSG("Expected that time proceeded to %.3f, but is %.3f", load_time_1, el_time_1));
ASSERT_EQUALS_TOLERANCE_STR(el_time_1, el_time_2, 0.001, MSG("Expected that time is kept as %.3f, but is %.3f", el_time_1, el_time_2));
ASSERT_EQUALS_TOLERANCE_STR(load_time_1 + load_time_2, el_time_3, 0.04, MSG("Expected that time proceeded to %.3f, but is %.3f", load_time_1 + load_time_2, el_time_3));
}