fix linter

tests/unit/test_isort.py

@@ -837,24 +837,28 @@ def test_skip_within_file() -> None:
     with pytest.raises(FileSkipped):
         isort.code(test_input, known_third_party=["django"])
 
+
 def test_skip_comment_without_space_after_hash() -> None:
     """Ensure skipping a whole file works."""
     test_input = "#isort: skip_file\nimport django\nimport myproject\n"
     with pytest.raises(FileSkipped):
         isort.code(test_input, known_third_party=["django"])
 
+
 def test_skip_comment_is_no_comment() -> None:
     """Ensure skipping a whole file works."""
-    test_input = "content = \"# isort:skip_file\""
+    test_input = 'content = "# isort:skip_file"'
     test_output = isort.code(test_input)
     assert test_output == test_input
 
+
 def test_force_to_top() -> None:
     """Ensure forcing a single import to the top of its category works as expected."""
     test_input = "import lib6\nimport lib2\nimport lib5\nimport lib1\n"
     test_output = isort.code(test_input, force_to_top=["lib5"])
     assert test_output == "import lib5\nimport lib1\nimport lib2\nimport lib6\n"
 
+
 def test_add_imports() -> None:
     """Ensures adding imports works as expected."""
     test_input = "import lib6\nimport lib2\nimport lib5\nimport lib1\n\n"