1 files changed, 10 insertions, 0 deletions
diff --git a/spec/lib/gitlab/ci/pipeline/chain/sequence_spec.rb b/spec/lib/gitlab/ci/pipeline/chain/sequence_spec.rb
index 9033b71b19f..f82e49f9323 100644
--- a/spec/lib/gitlab/ci/pipeline/chain/sequence_spec.rb
+++ b/spec/lib/gitlab/ci/pipeline/chain/sequence_spec.rb
@@ -5,11 +5,13 @@ require 'spec_helper'
 describe Gitlab::Ci::Pipeline::Chain::Sequence do
   let_it_be(:project) { create(:project) }
   let_it_be(:user) { create(:user) }
+
   let(:pipeline) { build_stubbed(:ci_pipeline) }
   let(:command) { Gitlab::Ci::Pipeline::Chain::Command.new }
   let(:first_step) { spy('first step') }
   let(:second_step) { spy('second step') }
   let(:sequence) { [first_step, second_step] }
+  let(:histogram) { spy('prometheus metric') }
 
   subject do
     described_class.new(pipeline, command, sequence)
@@ -52,5 +54,13 @@ describe Gitlab::Ci::Pipeline::Chain::Sequence do
     it 'returns a pipeline object' do
       expect(subject.build!).to eq pipeline
     end
+
+    it 'adds sequence duration to duration histogram' do
+      allow(command).to receive(:duration_histogram).and_return(histogram)
+
+      subject.build!
+
+      expect(histogram).to have_received(:observe)
+    end
   end
 end