void test_attach_us_time(void)
{
LowPowerTicker ticker;
ticker_callback_flag = 0;
gtimer.reset();
gtimer.start();
ticker.attach_us(callback(stop_gtimer_set_flag), DELAY_US);
while(!ticker_callback_flag);
ticker.detach();
const int time_diff = gtimer.read_us();
TEST_ASSERT_UINT64_WITHIN(TOLERANCE_US, DELAY_US, time_diff);
}
/** Test multi callback time
Given a Ticker
When the callback is attached multiple times
Then ticker properly execute callback multiple times
*/
void test_multi_call_time(void)
{
LowPowerTicker ticker;
int time_diff;
const int attach_count = 10;
for (int i = 0; i < attach_count; i++) {
ticker_callback_flag = 0;
gtimer.reset();
gtimer.start();
ticker.attach_us(callback(stop_gtimer_set_flag), MULTI_TICKER_TIME_MS * 1000);
while(!ticker_callback_flag);
time_diff = gtimer.read_us();
TEST_ASSERT_UINT32_WITHIN(TOLERANCE_US, MULTI_TICKER_TIME_MS * 1000, time_diff);
}
}
/** Test if detach cancel scheduled callback event
Given a Ticker with callback attached
When the callback is detached
Then the callback is not being called
*/
void test_detach(void)
{
LowPowerTicker ticker;
int32_t ret;
const float ticker_time_s = 0.1f;
const uint32_t wait_time_ms = 500;
Semaphore sem(0, 1);
ticker.attach(callback(sem_release, &sem), ticker_time_s);
ret = sem.wait();
TEST_ASSERT_TRUE(ret > 0);
ret = sem.wait();
ticker.detach(); /* cancel */
TEST_ASSERT_TRUE(ret > 0);
ret = sem.wait(wait_time_ms);
TEST_ASSERT_EQUAL(0, ret);
}
/**
* Callback serial
**/
void serial(int events) {
unsigned char i;
if(events & SERIAL_EVENT_RX_CHARACTER_MATCH) {
for(i = 0; i < BUFFER_LENGTH; i++) {
if(rx_buffer[i] == 't') break; // 't' is received, check for buffer length
}
if(blinking) { // Toggle blink
counter.detach();
blinking = false;
} else {
counter.attach(blink, TOGGLE_SPEED);
blinking = true;
}
} else if (events & SERIAL_EVENT_RX_COMPLETE) {
i = BUFFER_LENGTH - 1;
}
test_connection.write(rx_buffer, i+1, 0, 0); // Echo string without callback
test_connection.read(rx_buffer, BUFFER_LENGTH, serial_event, SERIAL_EVENT_RX_ALL, 't'); // Reset serial reception
}