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# frozen_string_literal: true
require 'spec_helper'
describe PrometheusMetric do
subject { build(:prometheus_metric) }
let(:other_project) { build(:project) }
it_behaves_like 'having unique enum values'
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
'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', :nginx_ingress_vts, 'Response metrics (NGINX Ingress VTS)'
it_behaves_like 'group_title', :nginx_ingress, 'Response metrics (NGINX Ingress)'
it_behaves_like 'group_title', :ha_proxy, 'Response metrics (HA Proxy)'
it_behaves_like 'group_title', :aws_elb, 'Response metrics (AWS ELB)'
it_behaves_like 'group_title', :nginx, 'Response metrics (NGINX)'
it_behaves_like 'group_title', :kubernetes, 'System metrics (Kubernetes)'
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 '#priority' do
using RSpec::Parameterized::TableSyntax
where(:group, :priority) do
:nginx_ingress_vts | 10
:nginx_ingress | 10
:ha_proxy | 10
:aws_elb | 10
:nginx | 10
:kubernetes | 5
:business | 0
:response | -5
:system | -10
end
with_them do
before do
subject.group = group
end
it { expect(subject.priority).to eq(priority) }
end
end
describe '#required_metrics' do
using RSpec::Parameterized::TableSyntax
where(:group, :required_metrics) do
:nginx_ingress_vts | %w(nginx_upstream_responses_total nginx_upstream_response_msecs_avg)
:nginx_ingress | %w(nginx_ingress_controller_requests nginx_ingress_controller_ingress_upstream_latency_seconds_sum)
:ha_proxy | %w(haproxy_frontend_http_requests_total haproxy_frontend_http_responses_total)
:aws_elb | %w(aws_elb_request_count_sum aws_elb_latency_average aws_elb_httpcode_backend_5_xx_sum)
:nginx | %w(nginx_server_requests nginx_server_requestMsec)
:kubernetes | %w(container_memory_usage_bytes container_cpu_usage_seconds_total)
:business | %w()
:response | %w()
:system | %w()
end
with_them do
before do
subject.group = group
end
it { expect(subject.required_metrics).to eq(required_metrics) }
end
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,
label: subject.legend
}
]
expect(subject.to_query_metric.queries).to eq(queries)
end
end
end
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