Add functional test for css file

Static files were introduced in this tutorial step. As the tutorials emphasise to write tests, this commits adds a test for the static file `app.css` that was introduced with this tutorial step.

1 files changed, 4 insertions, 0 deletions

diff --git a/docs/quick_tutorial/static_assets/tutorial/tests.py b/docs/quick_tutorial/static_assets/tutorial/tests.py
index 4381235ec..b560ddf82 100644
--- a/docs/quick_tutorial/static_assets/tutorial/tests.py
+++ b/docs/quick_tutorial/static_assets/tutorial/tests.py
@@ -42,3 +42,7 @@ class TutorialFunctionalTests(unittest.TestCase):
     def test_hello(self):
         res = self.testapp.get('/howdy', status=200)
         self.assertIn(b'<h1>Hi Hello View', res.body)
+
+    def test_css(self):
+        res = self.testapp.get('/static/app.css', status=200)
+        self.assertIn(b'body', res.body)