py2.7c: test fxckers for basic py2.7 compatibility

librefi/fxckers/__init__.py

@@ -1,3 +1,6 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
 from ._map import fxckers_map
 
 __all__ = ['fxckers_map']

tests/py2_compat.py

@@ -0,0 +1,19 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from os import listdir, path
+import re
+
+
+def test_fxcker_files_py2_compatibility():
+    dir = path.join('.', 'librefi', 'fxckers')
+    fxckers = listdir(dir)
+    for fxcker in fxckers:
+        if re.match(r'^\w+\.py$', fxcker):
+            with open(path.join(dir, fxcker), 'r') as file:
+                content = file.read()
+                if re.match(r'^(#!.+\r?\n)?\s*(# (-\*- )?coding: utf-8( -\*-)?\r?\n)?\s*(from __future__ import (\w+, )*unicode_literals)',
+                            content) is None:
+                    print(content)
+                    print(fxcker)
+                    raise AssertionError('fxcker %s not containing required compat imports' % (fxcker))