Merge pull request #553 from octokit/check-for-valid-repo-string

Ensure Repository is valid when passed a string. Fixes #552

lib/octokit/repository.rb

@@ -18,6 +18,9 @@ def initialize(repo)
         @id = repo
       when String
         @owner, @name = repo.split('/')
+        unless @owner && @name
+          raise ArgumentError, "Invalid Repository. Use user/repo format."
+        end
       when Repository
         @owner = repo.owner
         @name = repo.name

spec/octokit/repository_spec.rb

@@ -27,6 +27,13 @@
     end
   end
 
+  context "when passed a string without a slash" do
+    it "raises ArgumentError" do
+      expect { Octokit::Repository.new('raise-error') }.
+        to raise_error ArgumentError, "Invalid Repository. Use user/repo format."
+    end
+  end
+
   describe ".path" do
     context "with named repository" do
       it "returns the url path" do