it('should return true if from the default branch', function() {
   var payload = {
     'repository': {'full_name': '18F/team-api', 'default_branch': 'master'},
     'ref': 'refs/heads/master'
   };
   expect(ProjectDataUpdater.isValidUpdate(payload, '18F')).to.be.true;
 });
 it('should return false if ref is undefined', function() {
   var payload = {
     'repository': {'full_name': '18F/team-api', 'default_branch': 'master'}
   };
   expect(ProjectDataUpdater.isValidUpdate(payload, '18F')).to.be.false;
 });
 it('should return false if not from an 18F repository', function() {
   var payload = {'repository': {'full_name': 'mbland/team-api'}};
   expect(ProjectDataUpdater.isValidUpdate(payload, '18F')).to.be.false;
 });