/** * Test getFirstOfMonth() * * @author Tom Haskins-Vaughan <*****@*****.**> * @since 1.0.0 * * @dataProvider getFirstOfMonthProvider */ public function testGetFirstOfMonth(MonthYear $monthYear, $dateString) { $this->assertSame($dateString, $monthYear->getFirstOfMonth()->format('Y-m-d')); }