Add comments and clean up whitespace

1 files changed, 15 insertions, 0 deletions

diff --git a/tests/test_util.py b/tests/test_util.py
index 0b3365c..3ac3886 100644
--- a/tests/test_util.py
+++ b/tests/test_util.py
@@ -1,14 +1,29 @@
+#------------------------------------------------------------------------------
+# pycparser: test_util.py
+#
+# Utility code for tests.
+#
+# Eli Bendersky [https://eli.thegreenplace.net/]
+# This file contributed by vit9696@users.noreply.github.com
+# License: BSD
+#------------------------------------------------------------------------------
 import platform
 
+
 def cpp_supported():
+    """Is cpp (the C preprocessor) supported as a native command?"""
     return platform.system() == 'Linux' or platform.system() == 'Darwin'
 
+
 def cpp_path():
+    """Path to cpp command."""
     if platform.system() == 'Darwin':
         return 'gcc'
     return 'cpp'
 
+
 def cpp_args(args=[]):
+    """Turn args into a suitable format for passing to cpp."""
     if isinstance(args, str):
         args = [args]
     if platform.system() == 'Darwin':