Refactor code and update tests for improved DX

tests/Prime/Container/FlasherContainerTest.php

@@ -89,7 +89,7 @@ final class FlasherContainerTest extends TestCase
     public function testFromWithClosureReturningInvalidTypeThrowsException(): void
     {
         // Pass a closure that returns something other than ContainerInterface
-        FlasherContainer::from(fn () => 'not a container');
+        FlasherContainer::from(fn () => 'not a container'); // @phpstan-ignore argument.type
 
         $this->expectException(\InvalidArgumentException::class);
         $this->expectExceptionMessage('Expected an instance of "Psr\Container\ContainerInterface"');

tests/Prime/Notification/TypeTest.php

@@ -23,19 +23,37 @@ final class TypeTest extends TestCase
         $this->assertSame($expected, Type::all());
     }
 
-    public function testIsValidWithValidTypes(): void
+    #[\PHPUnit\Framework\Attributes\DataProvider('validTypesProvider')]
+    public function testIsValidWithValidTypes(string $type): void
     {
-        $this->assertTrue(Type::isValid('success'));
-        $this->assertTrue(Type::isValid('error'));
-        $this->assertTrue(Type::isValid('info'));
-        $this->assertTrue(Type::isValid('warning'));
+        $this->assertTrue(Type::isValid($type));
     }
 
-    public function testIsValidWithInvalidTypes(): void
+    /**
+     * @return iterable<string, array{string}>
+     */
+    public static function validTypesProvider(): iterable
     {
-        $this->assertFalse(Type::isValid('invalid'));
-        $this->assertFalse(Type::isValid(''));
-        $this->assertFalse(Type::isValid('SUCCESS'));
-        $this->assertFalse(Type::isValid('notice'));
+        yield 'success' => ['success'];
+        yield 'error' => ['error'];
+        yield 'info' => ['info'];
+        yield 'warning' => ['warning'];
+    }
+
+    #[\PHPUnit\Framework\Attributes\DataProvider('invalidTypesProvider')]
+    public function testIsValidWithInvalidTypes(string $type): void
+    {
+        $this->assertFalse(Type::isValid($type));
+    }
+
+    /**
+     * @return iterable<string, array{string}>
+     */
+    public static function invalidTypesProvider(): iterable
+    {
+        yield 'invalid' => ['invalid'];
+        yield 'empty' => [''];
+        yield 'uppercase SUCCESS' => ['SUCCESS'];
+        yield 'notice' => ['notice'];
     }
 }

tests/Symfony/EventListener/WorkerListenerTest.php

@@ -7,12 +7,14 @@ namespace Flasher\Tests\Symfony\EventListener;
 use Flasher\Prime\Http\Csp\ContentSecurityPolicyHandlerInterface;
 use Flasher\Symfony\EventListener\WorkerListener;
 use Flasher\Symfony\Storage\FallbackSession;
+use PHPUnit\Framework\MockObject\MockObject;
 use PHPUnit\Framework\TestCase;
 use Symfony\Contracts\Service\ResetInterface;
 
 final class WorkerListenerTest extends TestCase
 {
-    private ContentSecurityPolicyHandlerInterface $cspHandler;
+    /** @var MockObject&ContentSecurityPolicyHandlerInterface */
+    private MockObject $cspHandler;
 
     protected function setUp(): void
     {