Chris@0
|
1 <?php
|
Chris@0
|
2
|
Chris@0
|
3 namespace Drupal\Tests\Component\Utility;
|
Chris@0
|
4
|
Chris@0
|
5 use Drupal\Component\Utility\Timer;
|
Chris@0
|
6 use PHPUnit\Framework\TestCase;
|
Chris@0
|
7
|
Chris@0
|
8 /**
|
Chris@0
|
9 * Tests the Timer system.
|
Chris@0
|
10 *
|
Chris@0
|
11 * @group Utility
|
Chris@0
|
12 *
|
Chris@0
|
13 * @coversDefaultClass \Drupal\Component\Utility\Timer
|
Chris@0
|
14 */
|
Chris@0
|
15 class TimerTest extends TestCase {
|
Chris@0
|
16
|
Chris@0
|
17 /**
|
Chris@0
|
18 * Tests Timer::read() time accumulation accuracy across multiple restarts.
|
Chris@0
|
19 *
|
Chris@0
|
20 * @covers ::start
|
Chris@0
|
21 * @covers ::stop
|
Chris@0
|
22 * @covers ::read
|
Chris@0
|
23 */
|
Chris@0
|
24 public function testTimer() {
|
Chris@0
|
25 Timer::start('test');
|
Chris@0
|
26 usleep(5000);
|
Chris@0
|
27 $value = Timer::read('test');
|
Chris@0
|
28 usleep(5000);
|
Chris@0
|
29 $value2 = Timer::read('test');
|
Chris@0
|
30 usleep(5000);
|
Chris@0
|
31 $value3 = Timer::read('test');
|
Chris@0
|
32 usleep(5000);
|
Chris@0
|
33 $value4 = Timer::read('test');
|
Chris@0
|
34
|
Chris@0
|
35 // Although we sleep for 5 milliseconds, we should test that at least 4 ms
|
Chris@0
|
36 // have past because usleep() is not reliable on Windows. See
|
Chris@0
|
37 // http://php.net/manual/function.usleep.php for more information. The
|
Chris@0
|
38 // purpose of the test to validate that the Timer class can measure elapsed
|
Chris@0
|
39 // time not the granularity of usleep() on a particular OS.
|
Chris@0
|
40 $this->assertGreaterThanOrEqual(4, $value, 'Timer failed to measure at least 4 milliseconds of sleeping while running.');
|
Chris@0
|
41
|
Chris@0
|
42 $this->assertGreaterThanOrEqual($value + 4, $value2, 'Timer failed to measure at least 8 milliseconds of sleeping while running.');
|
Chris@0
|
43
|
Chris@0
|
44 $this->assertGreaterThanOrEqual($value2 + 4, $value3, 'Timer failed to measure at least 12 milliseconds of sleeping while running.');
|
Chris@0
|
45
|
Chris@0
|
46 $this->assertGreaterThanOrEqual($value3 + 4, $value4, 'Timer failed to measure at least 16 milliseconds of sleeping while running.');
|
Chris@0
|
47
|
Chris@0
|
48 // Stop the timer.
|
Chris@0
|
49 $value5 = Timer::stop('test');
|
Chris@0
|
50 $this->assertGreaterThanOrEqual($value4, $value5['time'], 'Timer measured after stopping was not greater than last measurement.');
|
Chris@0
|
51
|
Chris@0
|
52 // Read again.
|
Chris@0
|
53 $value6 = Timer::read('test');
|
Chris@0
|
54 $this->assertEquals($value5['time'], $value6, 'Timer measured after stopping was not equal to the stopped time.');
|
Chris@0
|
55
|
Chris@0
|
56 // Restart.
|
Chris@0
|
57 Timer::start('test');
|
Chris@0
|
58 usleep(5000);
|
Chris@0
|
59 $value7 = Timer::read('test');
|
Chris@0
|
60 $this->assertGreaterThanOrEqual($value6 + 4, $value7, 'Timer failed to measure at least 16 milliseconds of sleeping while running.');
|
Chris@0
|
61
|
Chris@0
|
62 // Stop again.
|
Chris@0
|
63 $value8 = Timer::stop('test');
|
Chris@0
|
64 $value9 = Timer::read('test');
|
Chris@0
|
65 $this->assertEquals($value8['time'], $value9, 'Timer measured after stopping not equal to stop time.');
|
Chris@0
|
66 }
|
Chris@0
|
67
|
Chris@0
|
68 }
|