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# frozen_string_literal: true
require 'spec_helper'
describe PrometheusAdapter, :use_clean_rails_memory_store_caching do
include PrometheusHelpers
include ReactiveCachingHelpers
let(:project) { create(:prometheus_project) }
let(:service) { project.prometheus_service }
let(:described_class) do
Class.new do
include PrometheusAdapter
end
end
let(:environment_query) { Gitlab::Prometheus::Queries::EnvironmentQuery }
describe '#query' do
describe 'environment' do
let(:environment) { build_stubbed(:environment, slug: 'env-slug') }
around do |example|
Timecop.freeze { example.run }
end
context 'with valid data' do
subject { service.query(:environment, environment) }
before do
stub_reactive_cache(service, prometheus_data, environment_query, environment.id)
end
it 'returns reactive data' do
is_expected.to eq(prometheus_metrics_data)
end
end
end
describe 'matched_metrics' do
let(:matched_metrics_query) { Gitlab::Prometheus::Queries::MatchedMetricQuery }
let(:prometheus_client_wrapper) { double(:prometheus_client_wrapper, label_values: nil) }
context 'with valid data' do
subject { service.query(:matched_metrics) }
before do
allow(service).to receive(:prometheus_client_wrapper).and_return(prometheus_client_wrapper)
synchronous_reactive_cache(service)
end
it 'returns reactive data' do
expect(subject[:success]).to be_truthy
expect(subject[:data]).to eq([])
end
end
end
describe 'deployment' do
let(:deployment) { build_stubbed(:deployment) }
let(:deployment_query) { Gitlab::Prometheus::Queries::DeploymentQuery }
around do |example|
Timecop.freeze { example.run }
end
context 'with valid data' do
subject { service.query(:deployment, deployment) }
before do
stub_reactive_cache(service, prometheus_data, deployment_query, deployment.id)
end
it 'returns reactive data' do
expect(subject).to eq(prometheus_metrics_data)
end
end
end
describe 'additional_metrics' do
let(:additional_metrics_environment_query) { Gitlab::Prometheus::Queries::AdditionalMetricsEnvironmentQuery }
let(:environment) { build_stubbed(:environment, slug: 'env-slug') }
let(:time_window) { [1552642245.067, 1552642095.831] }
around do |example|
Timecop.freeze { example.run }
end
context 'with valid data' do
subject { service.query(:additional_metrics_environment, environment, *time_window) }
before do
stub_reactive_cache(service, prometheus_data, additional_metrics_environment_query, environment.id, *time_window)
end
it 'returns reactive data' do
expect(subject).to eq(prometheus_data)
end
end
end
end
describe '#calculate_reactive_cache' do
let(:environment) { create(:environment, slug: 'env-slug') }
before do
service.manual_configuration = true
service.active = true
end
subject do
service.calculate_reactive_cache(environment_query.name, environment.id)
end
around do |example|
Timecop.freeze { example.run }
end
context 'when service is inactive' do
before do
service.active = false
end
it { is_expected.to be_nil }
end
context 'when Prometheus responds with valid data' do
before do
stub_all_prometheus_requests(environment.slug)
end
it { expect(subject.to_json).to eq(prometheus_data.to_json) }
it { expect(subject.to_json).to eq(prometheus_data.to_json) }
end
[404, 500].each do |status|
context "when Prometheus responds with #{status}" do
before do
stub_all_prometheus_requests(environment.slug, status: status, body: "QUERY FAILED!")
end
it { is_expected.to eq(success: false, result: %(#{status} - "QUERY FAILED!")) }
end
end
end
describe '#build_query_args' do
subject { service.build_query_args(*args) }
context 'when active record models are included' do
let(:args) { [double(:environment, id: 12)] }
it 'serializes by id' do
is_expected.to eq [12]
end
end
context 'when args are safe for serialization' do
let(:args) { ['stringy arg', 5, 6.0, :symbolic_arg] }
it 'does nothing' do
is_expected.to eq args
end
end
end
end
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