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# frozen_string_literal: true
require 'spec_helper'
RSpec.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(project: project) }
let(:first_step) { spy('first step', name: 'FirstStep') }
let(:second_step) { spy('second step', name: 'SecondStep') }
let(:sequence) { [first_step, second_step] }
let(:histogram) { spy('prometheus metric') }
subject do
described_class.new(pipeline, command, sequence)
end
context 'when one of steps breaks the chain' do
before do
allow(first_step).to receive(:break?).and_return(true)
end
it 'does not process the second step' do
subject.build!
expect(second_step).not_to have_received(:perform!)
end
it 'returns a pipeline object' do
expect(subject.build!).to eq pipeline
end
end
context 'when all chains are executed correctly' do
before do
sequence.each do |step|
allow(step).to receive(:break?).and_return(false)
end
end
it 'iterates through entire sequence' do
subject.build!
expect(first_step).to have_received(:perform!)
expect(second_step).to have_received(:perform!)
end
it 'returns a pipeline object' do
expect(subject.build!).to eq pipeline
end
it 'adds sequence duration to duration histogram' do
allow(command.metrics)
.to receive(:pipeline_creation_duration_histogram)
.and_return(histogram)
subject.build!
expect(histogram).to have_received(:observe)
end
it 'adds step sequence duration to duration histogram' do
expect(command.metrics)
.to receive(:pipeline_creation_step_duration_histogram)
.twice
.and_return(histogram)
expect(histogram).to receive(:observe).with({ step: 'FirstStep' }, any_args).ordered
expect(histogram).to receive(:observe).with({ step: 'SecondStep' }, any_args).ordered
subject.build!
end
it 'records pipeline size by pipeline source in a histogram' do
allow(command.metrics)
.to receive(:pipeline_size_histogram)
.and_return(histogram)
subject.build!
expect(histogram).to have_received(:observe)
.with({ source: 'push' }, 0)
end
it 'records active jobs by pipeline plan in a histogram' do
allow(command.metrics)
.to receive(:active_jobs_histogram)
.and_return(histogram)
pipeline = create(:ci_pipeline, project: project, status: :running)
create(:ci_build, :finished, project: project, pipeline: pipeline)
create(:ci_build, :failed, project: project, pipeline: pipeline)
create(:ci_build, :running, project: project, pipeline: pipeline)
subject.build!
expect(histogram).to have_received(:observe)
.with(hash_including(plan: project.actual_plan_name), 3)
end
end
end
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