Use union types

Hyunk3l · Feb 25, 2024 · bb093e2 · bb093e2
1 parent 5215e23
commit bb093e2
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Showing 2 changed files with 10 additions and 1 deletion.
diff --git a/src/Behavioral/Command/SwitchButtonCommand.php b/src/Behavioral/Command/SwitchButtonCommand.php
@@ -6,8 +6,11 @@ class SwitchButtonCommand implements CommandInterface
 {
     private const COMMAND_MESSAGE = "Tv has been switched on.";
 
-    public function __construct(private ReceiverInterface $control)
+    public function __construct(private ReceiverInterface|false $control)
     {
+        if ($control === false) {
+            throw new \InvalidArgumentException("ReceiverInterface must be valid");
+        }
     }
 
     public function execute(): string

diff --git a/test/Behavioral/Command/SwitchButtonCommandTest.php b/test/Behavioral/Command/SwitchButtonCommandTest.php
@@ -26,4 +26,10 @@ public function testShouldExecuteSwitchButtonCommand()
 
         $this->assertEquals(self::COMMAND_MESSAGE, $result);
     }
+
+    public function testShouldFailInCaseReceiverIsNotValid()
+    {
+        $this->expectException(\InvalidArgumentException::class);
+        $result = (new SwitchButtonCommand(control: false));
+    }
 }