diff --git a/tests/Middleware/StripBasePathMiddlewareTest.php b/tests/Middleware/StripBasePathMiddlewareTest.php
new file mode 100644
index 0000000..ecec9ba
--- /dev/null
+++ b/tests/Middleware/StripBasePathMiddlewareTest.php
@@ -0,0 +1,51 @@
+<?php
+
+namespace Tests\Middleware;
+
+use App\Middleware\StripBasePathMiddleware;
+use Psr\Http\Message\ServerRequestInterface;
+use Slim\App;
+use Slim\Psr7\Headers;
+use Slim\Psr7\Request;
+use Slim\Psr7\Stream;
+use Slim\Psr7\Uri;
+use Tests\TestCase;
+
+class StripBasePathMiddlewareTest extends TestCase
+{
+    public function test_the_path_is_unchanged_for_a_request_in_the_webroot(): void
+    {
+        $middleware = new StripBasePathMiddleware($this->container);
+
+        $uri = new Uri('http', 'localhost', null, '/foo/bar');
+        $request = new Request('GET', $uri, new Headers, [], [], new Stream(fopen('php://memory', 'w+')));
+
+        $handler = $this->createMock(App::class);
+        $handler->expects($this->once())->method('handle')->with(
+            $this->callback(function (ServerRequestInterface $request): bool {
+                return $request->getUri()->getPath() == '/foo/bar';
+            })
+        );
+
+        $middleware($request, $handler);
+    }
+
+    public function test_it_strips_the_base_path_for_a_request_in_a_subdirectory(): void
+    {
+        $_SERVER['SCRIPT_NAME'] = '/some/dir/index.php';
+
+        $middleware = new StripBasePathMiddleware($this->container);
+
+        $uri = new Uri('http', 'localhost', null, '/some/dir/foo/bar');
+        $request = new Request('GET', $uri, new Headers, [], [], new Stream(fopen('php://memory', 'w+')));
+
+        $handler = $this->createMock(App::class);
+        $handler->expects($this->once())->method('handle')->with(
+            $this->callback(function (ServerRequestInterface $request): bool {
+                return $request->getUri()->getPath() == '/foo/bar';
+            })
+        );
+
+        $middleware($request, $handler);
+    }
+}