Reformat test with ruff

tests/test_cli.py

@@ -288,6 +288,7 @@ def test_run_with_command_flags(dotenv_path):
     assert result.returncode == 0
     assert result.stdout.strip() == "--version"
 
+
 def test_run_with_dotenv_and_command_flags(cli, dotenv_path):
     """
     Check that dotenv flags supersede command flags.
@@ -305,15 +306,21 @@ def test_run_with_dotenv_and_command_flags(cli, dotenv_path):
 @pytest.mark.parametrize(
     "files,file_contents,expected",
     (
-        (['.env'], ['a=1'], {"a": "1"}),
-        (['.env', '.env.secondary'], ['a=1', 'b=2'], {"a": "1", "b": "2"}),
-        (['.env', '.env.secondary', '.env.extra'], ['a=1', 'a=3\nb=2', 'a=5\nc=3'], {"a": "5", "b": "2", "c": "3"}),
+        ([".env"], ["a=1"], {"a": "1"}),
+        ([".env", ".env.secondary"], ["a=1", "b=2"], {"a": "1", "b": "2"}),
+        (
+            [".env", ".env.secondary", ".env.extra"],
+            ["a=1", "a=3\nb=2", "a=5\nc=3"],
+            {"a": "5", "b": "2", "c": "3"},
+        ),
     ),
 )
-def test_run_with_multiple_env_files(tmp_path, files: Sequence[str], file_contents: Sequence[str], expected: dict):
+def test_run_with_multiple_env_files(
+    tmp_path, files: Sequence[str], file_contents: Sequence[str], expected: dict
+):
     """
     Test loading variables from two separate env files using file arguments.
-    
+
     This demonstrates the pattern shown in the README where multiple env files
     are loaded (e.g., .env.shared and .env.secret) and all variables from both
     files are accessible.
@@ -327,4 +334,3 @@ def test_run_with_multiple_env_files(tmp_path, files: Sequence[str], file_conten
         for key, value in expected.items():
             result = invoke_sub([*file_args, "run", "printenv", key])
             assert result.stdout.strip() == value
-