Revert "removed the branches endpoint"

This reverts commit f7450cdb6b.

lib/travis/api/app/endpoint/branches.rb

@@ -0,0 +1,16 @@
+require 'travis/api/app'
+
+class Travis::Api::App
+  class Endpoint
+    class Branches < Endpoint
+      get '/' do
+        respond_with service(:find_branches, params), type: :branches
+      end
+
+      # get '/:owner_name/:name/branches' do       # v1
+      # get '/repos/:owner_name/:name/branches' do # v2
+      #   respond_with service(:branches, :find_all, params), type: :branches
+      # end
+    end
+  end
+end

spec/integration/v1/branches_spec.rb

@@ -0,0 +1,11 @@
+require 'spec_helper'
+
+describe 'Branches' do
+  let(:repo)    { Repository.by_slug('svenfuchs/minimal').first }
+  let(:headers) { { 'HTTP_ACCEPT' => 'application/vnd.travis-ci.1+json' } }
+
+  it 'GET /branches?repository_id=:repository_id' do
+    response = get '/branches', { repository_id: repo.id }, headers
+    response.should deliver_json_for(repo.last_finished_builds_by_branches, version: 'v1', type: 'branches')
+  end
+end

spec/integration/v2/branches_spec.rb

@@ -0,0 +1,11 @@
+require 'spec_helper'
+
+describe 'Branches' do
+  let(:repo)    { Repository.by_slug('svenfuchs/minimal').first }
+  let(:headers) { { 'HTTP_ACCEPT' => 'application/vnd.travis-ci.2+json' } }
+
+  it 'GET /branches?repository_id=:repository_id' do
+    response = get '/branches', { repository_id: repo.id }, headers
+    response.should deliver_json_for(repo.last_finished_builds_by_branches, version: 'v2', type: 'branches')
+  end
+end

spec/unit/endpoint/branches_spec.rb

@@ -0,0 +1,5 @@
+require 'spec_helper'
+
+describe Travis::Api::App::Endpoint::Branches do
+  it 'has to be tested'
+end