/**
* Creates a profile point with the specified starting time and memory.
*
* This method will only add a point if no other points have been added as the ProfilePointInterface objects created before changing
* the start point would result in inaccurate measurements.
*
* @param float $timeStamp Unix timestamp in microseconds when the profiler should start measuring time.
* @param integer $memoryBytes Memory amount in bytes when the profiler should start measuring memory.
*
* @return ProfilerInterface This method is chainable.
*
* @since 1.2.0
* @throws \RuntimeException
*/
public function setStart($timeStamp = 0.0, $memoryBytes = 0)
{
if (!empty($this->points)) {
throw new \RuntimeException('The start point cannot be adjusted after points are added to the profiler.');
}
$this->startTimeStamp = $timeStamp;
$this->startMemoryBytes = $memoryBytes;
$point = new ProfilePoint('start');
// Store the point.
$this->points[] = $point;
// Add it in the lookup table.
$this->lookup[$point->getName()] = count($this->points) - 1;
return $this;
}
/**
* Tests the getMemoryMegaBytes method.
*
* @return void
*
* @covers \Joomla\Profiler\ProfilePoint::getMemoryMegaBytes
* @since 1.0
*/
public function testGetMemoryMegaBytes()
{
$profilePoint = new ProfilePoint('test', 0, 0);
$this->assertEquals($profilePoint->getMemoryMegaBytes(), 0);
$profilePoint = new ProfilePoint('test', 0, 1048576);
$this->assertEquals($profilePoint->getMemoryMegaBytes(), 1);
}
/**
* @covers \Joomla\Profiler\ProfilePoint::getMemoryMegaBytes
*/
public function testThePointMemoryIsReturnedInMegabytes()
{
$profilePoint = new ProfilePoint('test', 0, 1048576);
$this->assertEquals($profilePoint->getMemoryMegaBytes(), 1);
}