/**
  * @test
  * @dataProvider sameDatesProvider
  *
  * @param HammerTime $date1
  * @param HammerTime $date2
  * @param HammerTime $date3
  */
 public function testIsSameDate(HammerTime $date1, HammerTime $date2, HammerTime $date3)
 {
     $this->assertTrue($date1->isSameDate($date2));
     $this->assertTrue($date2->isSameDate($date1));
     $this->assertFalse($date1->isSameDate($date3));
     $this->assertFalse($date3->isSameDate($date2));
 }