The Laboratory is where the magic takes place. Here we define
and conduct our experiments.
public function test_that_running_experiment_with_zero_chance_executes_control()
{
$l = new Laboratory();
$v = $l->experiment('test experiment')->control(function () {
return 'foo';
})->chance(0)->run();
$this->assertEquals('foo', $v);
}
public function test_that_control_and_trials_receive_parameters()
{
$laboratory = new Laboratory();
$r = $laboratory->experiment('test experiment')->control(function ($one, $two) {
return $one;
})->trial('trial', function ($one, $two) {
return $two;
})->report('Panda', 'Giraffe');
$this->assertInstanceOf('\\Scientist\\Report', $r);
$this->assertEquals('Panda', $r->getControl()->getValue());
$this->assertEquals('Giraffe', $r->getTrial('trial')->getValue());
}
public function test_that_journal_receives_result_information()
{
$lab = new Laboratory();
$journal = new StandardJournal();
$lab->addJournal($journal);
$control = function () {
return 'foo';
};
$trial = function () {
return 'bar';
};
$value = $lab->experiment('foo')->control($control)->trial('bar', $trial)->run();
$this->assertEquals('foo', $value);
$this->assertInstanceOf('\\Scientist\\Report', $journal->getReport());
$this->assertEquals('foo', $journal->getReport()->getName());
$this->assertEquals('foo', $journal->getReport()->getControl()->getValue());
$this->assertEquals('bar', $journal->getReport()->getTrial('bar')->getValue());
$this->assertEquals(false, $journal->getReport()->getTrial('bar')->isMatch());
}
/**
* Execute the experiment and return a report.
*
* @return \Scientist\Report
*/
public function report()
{
$this->params = func_get_args();
return $this->laboratory->getReport($this);
}