1 files changed, 67 insertions, 0 deletions
diff --git a/tests/Unit/Middleware/ResolvesMiddlewareTraitTest.php b/tests/Unit/Middleware/ResolvesMiddlewareTraitTest.php
new file mode 100644
index 00000000..320a6d6b
--- /dev/null
+++ b/tests/Unit/Middleware/ResolvesMiddlewareTraitTest.php
@@ -0,0 +1,67 @@
+<?php
+
+namespace Engelsystem\Test\Unit\Middleware;
+
+use Engelsystem\Application;
+use Engelsystem\Middleware\CallableHandler;
+use Engelsystem\Test\Unit\Middleware\Stub\HasStaticMethod;
+use Engelsystem\Test\Unit\Middleware\Stub\ResolvesMiddlewareTraitImplementation;
+use InvalidArgumentException;
+use PHPUnit\Framework\MockObject\MockObject;
+use PHPUnit\Framework\TestCase;
+use Psr\Http\Server\MiddlewareInterface;
+
+class ResolvesMiddlewareTraitTest extends TestCase
+{
+    /**
+     * @covers \Engelsystem\Middleware\ResolvesMiddlewareTrait::resolveMiddleware
+     * @covers \Engelsystem\Middleware\ResolvesMiddlewareTrait::isMiddleware
+     */
+    public function testResolveMiddleware()
+    {
+        /** @var Application|MockObject $container */
+        $container = $this->createMock(Application::class);
+        $middlewareInterface = $this->getMockForAbstractClass(MiddlewareInterface::class);
+        $callable = [HasStaticMethod::class, 'foo'];
+
+        $container->expects($this->exactly(3))
+            ->method('make')
+            ->withConsecutive(
+                ['FooBarClass'],
+                [CallableHandler::class, ['callable' => $callable]],
+                ['UnresolvableClass']
+            )
+            ->willReturnOnConsecutiveCalls(
+                $middlewareInterface,
+                $middlewareInterface,
+                null
+            );
+
+        $middleware = new ResolvesMiddlewareTraitImplementation($container);
+
+        $return = $middleware->callResolveMiddleware('FooBarClass');
+        $this->assertEquals($middlewareInterface, $return);
+
+        $return = $middleware->callResolveMiddleware($callable);
+        $this->assertEquals($middlewareInterface, $return);
+
+        $this->expectException(InvalidArgumentException::class);
+        $middleware->callResolveMiddleware('UnresolvableClass');
+    }
+
+    /**
+     * @covers \Engelsystem\Middleware\ResolvesMiddlewareTrait::resolveMiddleware
+     */
+    public function testResolveMiddlewareNoContainer()
+    {
+        $middlewareInterface = $this->getMockForAbstractClass(MiddlewareInterface::class);
+
+        $middleware = new ResolvesMiddlewareTraitImplementation();
+        $return = $middleware->callResolveMiddleware($middlewareInterface);
+
+        $this->assertEquals($middlewareInterface, $return);
+
+        $this->expectException(InvalidArgumentException::class);
+        $middleware->callResolveMiddleware('FooBarClass');
+    }
+}