tests: some pep8 and real failing if csrf dont match

tests/test_login.py

@@ -1,11 +1,12 @@
+import pytest
 import re
 import requests
 
 
 URL = 'http://127.0.0.1:80'
 
 
-def test_login_page():
+def test_accessing_login_page():
     r = requests.get(URL, allow_redirects=True)
 
     assert r.status_code == 200
@@ -15,25 +16,30 @@ def test_login_page():
     assert 'Username' in r.text
 
 
-def test_login():
-    csrf = ''
+def test_logging_in():
     client = requests.session()
     r = client.get(URL, allow_redirects=True)
     jar = r.cookies
-    csrf_match = re.search('<input type="hidden" name="_csrf_token" value="(.*)" />', r.text)
+
+    # get csrf token
+    csrf_match = re.search(
+        '<input type="hidden" name="_csrf_token" value="(.*)" />',
+        r.text
+    )
+
     if csrf_match:
         csrf = csrf_match.group(1)
     else:
-        print("csrf not matched")
+        # if there is no csrf token the test will fail
+        pytest.fail('csrf not matched')
 
     data = {
         '_username': 'wallabag',
         '_password': 'wallabag',
-        '_csrf_token' : csrf
+        '_csrf_token': csrf
     }
 
     r = client.post(URL + '/login_check', cookies=jar, data=data)
-    print(r.text)
     assert r.status_code == 200
     assert '/unread/list' in r.text
     assert '/starred/list' in r.text