Kill all mutants i Zero::Request

Fix tests for PATCH, because spec_helper didn't support it and the tests where
wrong.
Remove if statement from "conent_type", because ruby already returns nil, if the
requested key in a hash is not found. (Sounds a bit ugly, but it's true.)

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/zero/request.rb b/lib/zero/request.rb
index c93bb7e..36ef705 100644
--- a/lib/zero/request.rb
+++ b/lib/zero/request.rb
@@ -56,7 +56,7 @@ module Zero
     # TODO change into its own object?
     # @return [String] returns the content type of the request
     def content_type
-      @env[CONST_CONTENT_TYPE] if @env.has_key?(CONST_CONTENT_TYPE)
+      @env[CONST_CONTENT_TYPE]
     end
 
     # get the media types