Add regression and integration test suite

Port the stress-test findings into PHPUnit: realistic brett-parson.com
route model, known-issue baselines, router boundary cases, and a
standalone scaling benchmark (composer bench).

1 files changed, 61 insertions, 0 deletions

diff --git a/tests/RouterTest.php b/tests/RouterTest.php
index b8d4d49..3279ede 100644
--- a/tests/RouterTest.php
+++ b/tests/RouterTest.php
@@ -8,10 +8,12 @@ use ArrayObject;
 use BrettParson\MiniRoute\Routing\RouteNotFoundException;
 use BrettParson\MiniRoute\Routing\RouteRegistrationException;
 use BrettParson\MiniRoute\Routing\Router;
+use BrettParson\MiniRoute\Tests\Fixtures\CollidingController;
 use BrettParson\MiniRoute\Tests\Fixtures\FakeController;
 use BrettParson\MiniRoute\Tests\Fixtures\FakeMiddleware;
 use BrettParson\MiniRoute\Tests\Fixtures\FakeResolver;
 use BrettParson\MiniRoute\Tests\Fixtures\TestRequest;
+use BrettParson\MiniRoute\Tests\Fixtures\TestResponse;
 use PHPUnit\Framework\TestCase;
 
 final class RouterTest extends TestCase
@@ -78,4 +80,63 @@ final class RouterTest extends TestCase
         $this->expectException(RouteNotFoundException::class);
         $router->dispatch(new TestRequest('GET', '/missing'));
     }
+
+    public function testNotFoundHandlerIsCalledWhenSet(): void
+    {
+        [$router] = $this->makeRouter();
+        $router->registerController(FakeController::class);
+        $router->setNotFoundHandler(static fn (): TestResponse => new TestResponse(404, 'custom-nf'));
+
+        $response = $router->dispatch(new TestRequest('GET', '/missing'));
+
+        $this->assertSame(404, $response->status());
+        $this->assertSame('custom-nf', $response->body());
+    }
+
+    public function testTrailingSlashIsNormalized(): void
+    {
+        [$router] = $this->makeRouter();
+        $router->registerController(FakeController::class);
+
+        $response = $router->dispatch(new TestRequest('GET', '/entries/'));
+
+        $this->assertSame('index', $response->body());
+    }
+
+    public function testMethodIsCaseInsensitive(): void
+    {
+        [$router] = $this->makeRouter();
+        $router->registerController(FakeController::class);
+
+        $response = $router->dispatch(new TestRequest('get', '/entries'));
+
+        $this->assertSame('index', $response->body());
+    }
+
+    public function testLeadingDoubleSlashDoesNotMatch(): void
+    {
+        [$router] = $this->makeRouter();
+        $router->registerController(FakeController::class);
+
+        $this->expectException(RouteNotFoundException::class);
+        $router->dispatch(new TestRequest('GET', '//entries'));
+    }
+
+    public function testPathsAreCaseSensitive(): void
+    {
+        [$router] = $this->makeRouter();
+        $router->registerController(FakeController::class);
+
+        $this->expectException(RouteNotFoundException::class);
+        $router->dispatch(new TestRequest('GET', '/Entries'));
+    }
+
+    public function testDuplicateRouteAcrossControllersThrows(): void
+    {
+        [$router] = $this->makeRouter();
+        $router->registerController(FakeController::class);
+
+        $this->expectException(RouteRegistrationException::class);
+        $router->registerController(CollidingController::class);
+    }
 }