Add test for missing composer.json in PhpVersionDetectorTest

Author: bram-pkg

tests/Unit/Detectors/PhpVersionDetectorTest.php

@@ -84,4 +84,13 @@ public function testItGetsComposerFileContents(): void
 
         self::assertEquals('laravel/laravel', data_get($json, 'name'));
     }
+
+    public function testItReturnsFalseOnMissingComposerFile(): void
+    {
+        $this->app->setBasePath('non-existent');
+
+        $detected = app(PhpVersionDetector::class)->getComposerFileContents();
+
+        self::assertFalse($detected);
+    }
 }