function it_converts_objects_to_string_and_diffs_the_result(Exporter $exporter, StringEngine $stringDiffer)
{
$exporter->export(Argument::type('DateTime'))->willReturn('DateTime');
$exporter->export(Argument::type('ArrayObject'))->willReturn('ArrayObject');
$stringDiffer->compare('DateTime', 'ArrayObject')->willReturn('-DateTime+ArrayObject');
$diff = $this->compare(new \DateTime(), new \ArrayObject());
$diff->shouldBe('-DateTime+ArrayObject');
}
/**
* @param object $expected
* @param object $actual
*
* @return string
*/
public function compare($expected, $actual)
{
return $this->stringDiffer->compare($this->exporter->export($expected), $this->exporter->export($actual));
}