A completely empty config is a valid config

tests.py

@@ -73,7 +73,7 @@ def main():
         for fn in glob.glob(pattern):
             tests = tests + 1
             unittest, cfg = load_unittest(fn)
-            if not unittest or not cfg:
+            if not unittest:
                 errors = errors + 1
                 continue
 

unittest/correct-empty.yaml

@@ -0,0 +1,6 @@
+test:
+  description: "A completely empty config file is, ironically, correct"
+  errors:
+    count: 0
+---
+

validator/__init__.py

@@ -74,6 +74,9 @@ class Validator(object):
     def validate(self, yaml):
         ret_rv = True
         ret_msgs = []
+        if not yaml:
+            return ret_rv, ret_msgs
+
         if self.schema:
             try:
                 self.logger.debug("Validating against schema %s" % self.schema)