public function test_Date_time_compare_same_timestamp() { $aDatetime = new DateTime(0); // before() and after() return FALSE because, // they compare with '>' or '<' but not '>=' or '<=' $this->assertFalse($aDatetime->before($aDatetime)); $this->assertFalse($aDatetime->after($aDatetime)); $this->assertTrue($aDatetime->equals($aDatetime)); }