diff --git a/test/test_html.py b/test/test_html.py
index 72303c9..2d3844c 100644
--- a/test/test_html.py
+++ b/test/test_html.py
@@ -8,59 +8,56 @@ from renderer.fifty_ohm_html_renderer import FiftyOhmHtmlRenderer
 
 
 def parse_katalog():
-    with open('data/fragenkatalog3b.json') as fragenkatalog_file:
+    with open("data/fragenkatalog3b.json") as fragenkatalog_file:
         fragenkatalog = json.load(fragenkatalog_file)
 
         questions = {}
 
-        for exampart in fragenkatalog["sections"] : 
-            for chapter in exampart["sections"] :
-                if "questions" in chapter :
-                    for question in chapter["questions"] :
+        for exampart in fragenkatalog["sections"]:
+            for chapter in exampart["sections"]:
+                if "questions" in chapter:
+                    for question in chapter["questions"]:
                         questions[question["number"]] = question
-                if "sections" in chapter :
-                    for section in chapter["sections"] :
-                        for question in section["questions"] :
+                if "sections" in chapter:
+                    for section in chapter["sections"]:
+                        for question in section["questions"]:
                             questions[question["number"]] = question
-        
+
         return questions
 
-env = Environment(loader=FileSystemLoader('templates/html'))
-question_template = env.get_template('question.html')
+
+env = Environment(loader=FileSystemLoader("templates/html"))
+question_template = env.get_template("question.html")
 questions = parse_katalog()
 
+
 def question_stub(input):
-    """ Combines the original question dataset from BNetzA with our internal metadata """
-    with open('data/metadata.json') as metadata_file :
+    """Combines the original question dataset from BNetzA with our internal metadata"""
+    with open("data/metadata.json") as metadata_file:
         metadata = json.load(metadata_file)
-        number = metadata[f"{input}"]["number"] # Fragennummer z.B. AB123
+        number = metadata[f"{input}"]["number"]  # Fragennummer z.B. AB123
 
         question = questions[number]
         metadata = metadata[f"{input}"]
 
-        if "answer_a" in question :
-            answers = [
-                    question["answer_a"],
-                    question["answer_b"],
-                    question["answer_c"],
-                    question["answer_d"]
-            ]
-        else :
+        if "answer_a" in question:
+            answers = [question["answer_a"], question["answer_b"], question["answer_c"], question["answer_d"]]
+        else:
             answers = []
 
-        if metadata["picture_a"] != "" :
+        if metadata["picture_a"] != "":
             answer_pictures = [
-                    metadata["picture_a"],
-                    metadata["picture_b"],
-                    metadata["picture_c"],
-                    metadata["picture_d"]
-                ]
-        else :
+                metadata["picture_a"],
+                metadata["picture_b"],
+                metadata["picture_c"],
+                metadata["picture_d"],
+            ]
+        else:
             answer_pictures = []
 
-        if "picture_question" in question :
+        if "picture_question" in question:
             picture_question = metadata["picture_question"]
-        else :
+        else:
             picture_question = ""
 
         return question_template.render(
@@ -69,9 +66,10 @@ def question_stub(input):
             layout=metadata["layout"],
             picture_question=picture_question,
             answers=answers,
-            answer_pictures=answer_pictures
+            answer_pictures=answer_pictures,
         )
 
+
 def test_html(capsys):
     with capsys.disabled():
         with open("test/acceptanceTest.md") as file:
@@ -79,5 +77,5 @@ def test_html(capsys):
             with FiftyOhmHtmlRenderer(question_stub) as renderer:
                 output = renderer.render(Document(content))
                 with open("test/acceptanceTest.html", "w") as output_file:
-                    pretty = BeautifulSoup(output, 'html.parser').prettify()
+                    pretty = BeautifulSoup(output, "html.parser").prettify()
                     output_file.write(pretty)