gitlab-org--gitlab-foss/spec/models/prometheus_metric_spec.rb

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# frozen_string_literal: true
require 'spec_helper'
describe PrometheusMetric do
subject { build(:prometheus_metric) }
let(:other_project) { build(:project) }
it { is_expected.to belong_to(:project) }
it { is_expected.to validate_presence_of(:title) }
it { is_expected.to validate_presence_of(:query) }
it { is_expected.to validate_presence_of(:group) }
describe 'common metrics' do
using RSpec::Parameterized::TableSyntax
where(:common, :project, :result) do
false | other_project | true
false | nil | false
true | other_project | false
true | nil | true
end
with_them do
before do
subject.common = common
subject.project = project
end
it { expect(subject.valid?).to eq(result) }
end
end
describe '#query_series' do
using RSpec::Parameterized::TableSyntax
where(:legend, :type) do
'Some other legend' | NilClass
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'Status Code' | Array
end
with_them do
before do
subject.legend = legend
end
it { expect(subject.query_series).to be_a(type) }
end
end
describe '#group_title' do
shared_examples 'group_title' do |group, title|
subject { build(:prometheus_metric, group: group).group_title }
it "returns text #{title} for group #{group}" do
expect(subject).to eq(title)
end
end
it_behaves_like 'group_title', :business, 'Business metrics (Custom)'
it_behaves_like 'group_title', :response, 'Response metrics (Custom)'
it_behaves_like 'group_title', :system, 'System metrics (Custom)'
end
describe '#to_query_metric' do
it 'converts to queryable metric object' do
expect(subject.to_query_metric).to be_instance_of(Gitlab::Prometheus::Metric)
end
it 'queryable metric object has title' do
expect(subject.to_query_metric.title).to eq(subject.title)
end
it 'queryable metric object has y_label' do
expect(subject.to_query_metric.y_label).to eq(subject.y_label)
end
it 'queryable metric has no required_metric' do
expect(subject.to_query_metric.required_metrics).to eq([])
end
it 'queryable metric has weight 0' do
expect(subject.to_query_metric.weight).to eq(0)
end
it 'queryable metrics has query description' do
queries = [
{
query_range: subject.query,
unit: subject.unit,
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label: subject.legend
}
]
expect(subject.to_query_metric.queries).to eq(queries)
end
end
end