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# frozen_string_literal: true
require 'rails_helper'
describe Gitlab::Prometheus::MetricGroup do
describe '.common_metrics' do
let!(:project_metric) { create(:prometheus_metric) }
let!(:common_metric_group_a) { create(:prometheus_metric, :common, group: :aws_elb) }
let!(:common_metric_group_b_q1) { create(:prometheus_metric, :common, group: :kubernetes) }
let!(:common_metric_group_b_q2) { create(:prometheus_metric, :common, group: :kubernetes) }
subject { described_class.common_metrics }
it 'returns exactly two groups' do
expect(subject.map(&:name)).to contain_exactly(
'Response metrics (AWS ELB)', 'System metrics (Kubernetes)')
end
it 'returns exactly three metric queries' do
expect(subject.map(&:metrics).flatten.map(&:id)).to contain_exactly(
common_metric_group_a.id, common_metric_group_b_q1.id,
common_metric_group_b_q2.id)
end
it 'orders by priority' do
priorities = subject.map(&:priority)
names = subject.map(&:name)
expect(priorities).to eq([10, 5])
expect(names).to eq(['Response metrics (AWS ELB)', 'System metrics (Kubernetes)'])
end
end
describe '.for_project' do
let!(:other_project) { create(:project) }
let!(:project_metric) { create(:prometheus_metric) }
let!(:common_metric) { create(:prometheus_metric, :common, group: :aws_elb) }
subject do
described_class.for_project(other_project)
.map(&:metrics).flatten
.map(&:id)
end
it 'returns exactly one common metric' do
is_expected.to contain_exactly(common_metric.id)
end
end
end
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