test: router factory

Author: g105b

src/Dispatch/RouterFactory.php

@@ -1,5 +1,5 @@
 <?php
-namespace Gt\WebEngine\Dispatch;
+namespace GT\WebEngine\Dispatch;
 
 use Gt\Routing\BaseRouter;
 use Gt\Routing\RouterConfig;

test/phpunit/Dispatch/RouterFactoryTest.php

@@ -0,0 +1,118 @@
+<?php
+namespace GT\WebEngine\Test\Dispatch;
+
+use GT\WebEngine\Dispatch\RouterFactory;
+use Gt\Routing\BaseRouter;
+use Gt\Routing\RouterConfig;
+use Gt\ServiceContainer\Container;
+use PHPUnit\Framework\TestCase;
+
+class RouterFactoryTest extends TestCase {
+	private string $tmpDir;
+
+	protected function setUp():void {
+		parent::setUp();
+		$this->tmpDir = sys_get_temp_dir() . "/phpgt-webengine-test--Dispatch-RouterFactory-" . uniqid();
+		if(!is_dir($this->tmpDir)) {
+			mkdir($this->tmpDir, recursive: true);
+		}
+	}
+
+	protected function tearDown():void {
+		foreach(scandir($this->tmpDir) ?: [] as $f) {
+			if($f === '.' || $f === '..') { continue; }
+			@unlink($this->tmpDir . DIRECTORY_SEPARATOR . $f);
+		}
+		@rmdir($this->tmpDir);
+		parent::tearDown();
+	}
+
+	private function writeRouterFile(string $namespace, string $className, string $filePath):void {
+		$template = <<<'PHP'
+		<?php
+		namespace %NAMESPACE%;
+		use Gt\Routing\BaseRouter;
+		use Gt\Routing\RouterConfig;
+		use Gt\ServiceContainer\Container;
+		class %CLASS% extends BaseRouter {
+			public ?RouterConfig $receivedConfig = null;
+			public ?Container $receivedContainer = null;
+			public function __construct(RouterConfig $config) {
+				parent::__construct($config);
+				$this->receivedConfig = $config;
+			}
+			public function setContainer(Container $container):void {
+				parent::setContainer($container);
+				$this->receivedContainer = $container;
+			}
+		}
+		PHP;
+		$code = strtr($template, [
+			'%NAMESPACE%' => $namespace,
+			'%CLASS%' => $className,
+		]);
+		file_put_contents($filePath, $code);
+	}
+
+	/** @noinspection PhpUndefinedFieldInspection */
+	public function testCreate_usesAppRouterWhenFileExists():void {
+		$appNs = 'MyApp\\Routing';
+		$appClass = 'AppRouter';
+		$appFile = $this->tmpDir . '/AppRouter.php';
+		$this->writeRouterFile($appNs, $appClass, $appFile);
+
+		$defaultNs = 'Default\\Routing';
+		$defaultClass = 'DefaultRouter';
+		$defaultFile = $this->tmpDir . '/DefaultRouter.php';
+		$this->writeRouterFile($defaultNs, $defaultClass, $defaultFile);
+
+		$factory = new RouterFactory();
+		$container = new Container();
+		$router = $factory->create(
+			$container,
+			$appNs,
+			$appFile,
+			$appClass,
+			$defaultFile,
+			"\\$defaultNs\\$defaultClass",
+			303,
+			'text/html'
+		);
+
+		self::assertInstanceOf(BaseRouter::class, $router);
+		self::assertSame("$appNs\\$appClass", ltrim($router::class, '\\'));
+		self::assertSame(303, $router->receivedConfig->redirectResponseCode);
+		self::assertSame('text/html', $router->receivedConfig->defaultContentType);
+		self::assertSame($container, $router->receivedContainer);
+	}
+
+	/** @noinspection PhpUndefinedFieldInspection */
+	public function testCreate_fallsBackToDefaultWhenAppFileMissing():void {
+		$appNs = 'MyMissing\\Routing';
+		$appClass = 'MissingRouter';
+		$appFile = $this->tmpDir . '/MissingRouter.php'; // not created
+
+		$defaultNs = 'Default\\Routing';
+		$defaultClass = 'DefaultRouter';
+		$defaultFile = $this->tmpDir . '/DefaultRouter.php';
+		$this->writeRouterFile($defaultNs, $defaultClass, $defaultFile);
+
+		$factory = new RouterFactory();
+		$container = new Container();
+		$router = $factory->create(
+			$container,
+			$appNs,
+			$appFile,
+			$appClass,
+			$defaultFile,
+			"\\$defaultNs\\$defaultClass",
+			308,
+			'application/json'
+		);
+
+		self::assertSame("$defaultNs\\$defaultClass", ltrim($router::class, '\\'));
+		self::assertSame(308, $router->receivedConfig->redirectResponseCode);
+		self::assertSame('application/json', $router->receivedConfig->defaultContentType);
+		self::assertSame($container, $router->receivedContainer);
+	}
+}