fail test

Jenkinsfile

@@ -22,7 +22,7 @@ pipeline {
         stage('flake8') {
             steps {
                 sh """. .venv/bin/activate
-                    flake8 --max-complexity 7 --output-file flake8_results.txt darwcss/ || true
+                    flake8 --max-complexity 7 --output-file --ignore E501 flake8_results.txt darwcss/ || true
                     [ -f flake8_results.txt ] && flake8_junit flake8_results.txt test_flake8.xml;rm flake8_results.txt || true
                    """
             }

tests/test_css.py

@@ -11,7 +11,7 @@ class TestCSS(unittest.TestCase):
             selector.append(Style("a", "b"))
             selector.append(Style("c", "d"))
 
-        self.assertEqual(css.render(), self.rendered_css)
+        self.assertEqual(css.render() + "a", self.rendered_css)
 
     def test_css_with_iadd(self):
         css = CSS()