Add spec for scheduled status

spec/lib/gitlab/ci/status/scheduled_spec.rb

+require 'spec_helper'
+
+describe Gitlab::Ci::Status::Scheduled do
+  subject do
+    described_class.new(double('subject'), double('user'))
+  end
+
+  describe '#text' do
+    it { expect(subject.text).to eq 'scheduled' }
+  end
+
+  describe '#label' do
+    it { expect(subject.label).to eq 'scheduled' }
+  end
+
+  describe '#icon' do
+    it { expect(subject.icon).to eq 'status_scheduled' }
+  end
+
+  describe '#favicon' do
+    it { expect(subject.favicon).to eq 'favicon_status_scheduled' }
+  end
+
+  describe '#group' do
+    it { expect(subject.group).to eq 'scheduled' }
+  end
+end