--- a/tests/doctest.txt	Thu Nov 24 15:11:31 2011 -0800
+++ b/tests/doctest.txt	Thu Nov 24 15:29:05 2011 -0800
@@ -10,10 +10,23 @@
 Sanity check::
 
     >>> assert os.path.exists(directory)
+    >>> files = ['main.c', 'python_script.py']
+    >>> files = [os.path.join(directory, f) for f in files]    
 
 Test MPL license::
 
     >>> license = licenses.MPL()
+    >>> for f in files:
+    ...     license.has_license(f)
+    False
+    False
     >>> variables = {'author': 'Jeff Hammel', 'email': 'k0s@k0s.org'}
     >>> variables = license.obtain_variables(**variables)
     >>> license.interpolate(directory, variables)
+
+Assert files get licensed::
+
+    >>> for f in files:
+    ...     license.has_license(f)
+    True
+    True