public function tests()
{
PHPUsableTest::$current_test = $this;
describe('Profile', function ($test) {
describe('run', function ($test) {
it('should record memory usage', function ($test) {
$data = Profile::run(function () {
});
$test->assertArrayHasKey('memory before', $data);
$test->assertArrayHasKey('memory after', $data);
$test->assertArrayHasKey('memory peak', $data);
});
it('should record elapsed times', function ($test) {
$data = Profile::run(function () {
});
$test->assertArrayHasKey('elapsed', $data);
});
it('should record granular marks', function ($test) {
$data = Profile::run(function ($markFunc) {
$markFunc();
$markFunc();
$markFunc();
});
$test->assertArrayHasKey('marks', $data);
$test->assertEquals(3, count($data['marks']));
});
});
});
}
public static function run($fn, $options = array())
{
$memory_before = memory_get_usage();
$time_before = microtime(true);
$elapsed = function () use($time_before) {
return microtime(true) - $time_before;
};
$marks = array();
$markFunc = function ($label = "mark") use(&$marks, $elapsed) {
$memory = Profile::humanizeMemory();
$formatted_time_delta = $elapsed();
$marks[] = "{$label}: {$formatted_time_delta} - {$memory}";
};
if (Arrays::get($options, 'debug', false)) {
Trace::traceOffset(1)->debug('Staring profile.');
}
// The callback provided to the profile closure will trigger
// a measurement.
$fn($markFunc);
$memory_after = memory_get_usage();
$memory_peak = memory_get_peak_usage(true);
$data = array('elapsed' => $elapsed(), 'memory_before' => $memory_before, 'memory_after' => $memory_after, 'memory_peak' => $memory_peak, 'marks' => $marks);
if (Arrays::get($options, 'debug', false)) {
Trace::traceDepth(2)->traceOffset(1)->debug($data);
}
return $data;
}