added unit tests to make sure variation templates use correct urls
added unit tests to make sure variation templates use correct urls

pascalchevrel/bedrock,mozilla/bedrock,pascalchevrel/bedrock,craigcook/bedrock,mozilla/bedrock,mozilla/bedrock,craigcook/bedrock,pascalchevrel/bedrock,craigcook/bedrock,mozilla/bedrock,flodolo/bedrock,flodolo/bedrock,sylvestre/bedrock,pascalchevrel/bedrock,flodolo/bedrock,sylvestre/bedrock,alexgibson/bedrock,craigcook/bedrock,flodolo/bedrock,alexgibson/bedrock,alexgibson/bedrock,alexgibson/bedrock,sylvestre/bedrock,sylvestre/bedrock