Adds ordering to projects contributors in API

Allows ordering in GET api/v4/projects/:project_id/repository/contributors
through `order_by` and `sort` params.
The available `order_by` options are: name|email|commits.
The available `sort` options are: asc|desc.

1 files changed, 16 insertions, 3 deletions

diff --git a/spec/factories/commits.rb b/spec/factories/commits.rb
index f4f12a095fc..4e2d8e8969e 100644
--- a/spec/factories/commits.rb
+++ b/spec/factories/commits.rb
@@ -2,15 +2,28 @@ require_relative '../support/repo_helpers'
 
 FactoryGirl.define do
   factory :commit do
-    git_commit RepoHelpers.sample_commit
+    transient do
+      author nil
+    end
+
+    git_commit do
+      commit = RepoHelpers.sample_commit
+
+      if author
+        commit.author_email = author.email
+        commit.author_name = author.name
+      end
+
+      commit
+    end
     project
 
     initialize_with do
       new(git_commit, project)
     end
 
-    after(:build) do |commit|
-      allow(commit).to receive(:author).and_return build(:author)
+    after(:build) do |commit, evaluator|
+      allow(commit).to receive(:author).and_return(evaluator.author || build(:author))
     end
 
     trait :without_author do