/**
* It should return all the stats.
*/
public function testReturnStats()
{
$distribution = new Distribution([10, 20]);
$stats = $distribution->getStats();
foreach (['min', 'max', 'sum', 'stdev', 'mean', 'mode', 'variance', 'rstdev'] as $key) {
$this->assertArrayHasKey($key, $stats);
}
$this->assertEquals(10, $stats['min']);
$this->assertEquals(20, $stats['max']);
}
