Merge pull request #19 from mikemand/hotfix/fix-is-closed-on

Fix `isClosedOn` mirroring `isOpenOn` instead of being the opposite

Author: sebastiandedeyne

src/OpeningHours.php

@@ -92,7 +92,7 @@ public function isOpenOn(string $day): bool
 
     public function isClosedOn(string $day): bool
     {
-        return $this->isOpenOn($day);
+        return ! $this->isOpenOn($day);
     }
 
     public function isOpenAt(DateTimeInterface $dateTime): bool

tests/OpeningHoursTest.php

@@ -68,6 +68,17 @@ public function it_can_determine_that_its_regularly_open_on_a_week_day()
         $this->assertFalse($openingHours->isOpenOn('tuesday'));
     }
 
+    /** @test */
+    public function it_can_determine_that_its_regularly_closed_on_a_week_day()
+    {
+        $openingHours = OpeningHours::create([
+            'monday' => ['09:00-18:00'],
+        ]);
+
+        $this->assertFalse($openingHours->isClosedOn('monday'));
+        $this->assertTrue($openingHours->isClosedOn('tuesday'));
+    }
+
     /** @test */
     public function it_can_return_the_opening_hours_for_a_specific_date()
     {