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|
# frozen_string_literal: true
require 'spec_helper'
describe PrometheusService, :use_clean_rails_memory_store_caching do
include PrometheusHelpers
include ReactiveCachingHelpers
let(:project) { create(:prometheus_project) }
let(:service) { project.prometheus_service }
describe "Associations" do
it { is_expected.to belong_to :project }
end
describe 'Validations' do
context 'when manual_configuration is enabled' do
before do
subject.manual_configuration = true
end
it { is_expected.to validate_presence_of(:api_url) }
end
context 'when manual configuration is disabled' do
before do
subject.manual_configuration = false
end
it { is_expected.not_to validate_presence_of(:api_url) }
end
end
describe '#test' do
before do
service.manual_configuration = true
end
let!(:req_stub) { stub_prometheus_request(prometheus_query_url('1'), body: prometheus_value_body('vector')) }
context 'success' do
it 'reads the discovery endpoint' do
expect(service.test[:result]).to eq('Checked API endpoint')
expect(service.test[:success]).to be_truthy
expect(req_stub).to have_been_requested.twice
end
end
context 'failure' do
let!(:req_stub) { stub_prometheus_request(prometheus_query_url('1'), status: 404) }
it 'fails to read the discovery endpoint' do
expect(service.test[:success]).to be_falsy
expect(req_stub).to have_been_requested
end
end
end
describe '#prometheus_client' do
context 'manual configuration is enabled' do
let(:api_url) { 'http://some_url' }
before do
subject.active = true
subject.manual_configuration = true
subject.api_url = api_url
end
it 'returns rest client from api_url' do
expect(subject.prometheus_client.url).to eq(api_url)
end
end
context 'manual configuration is disabled' do
let(:api_url) { 'http://some_url' }
before do
subject.manual_configuration = false
subject.api_url = api_url
end
it 'no client provided' do
expect(subject.prometheus_client).to be_nil
end
end
end
describe '#prometheus_available?' do
context 'clusters with installed prometheus' do
let!(:cluster) { create(:cluster, projects: [project]) }
let!(:prometheus) { create(:clusters_applications_prometheus, :installed, cluster: cluster) }
it 'returns true' do
expect(service.prometheus_available?).to be(true)
end
end
context 'clusters with updated prometheus' do
let!(:cluster) { create(:cluster, projects: [project]) }
let!(:prometheus) { create(:clusters_applications_prometheus, :updated, cluster: cluster) }
it 'returns true' do
expect(service.prometheus_available?).to be(true)
end
end
context 'clusters without prometheus installed' do
let(:cluster) { create(:cluster, projects: [project]) }
let!(:prometheus) { create(:clusters_applications_prometheus, cluster: cluster) }
it 'returns false' do
expect(service.prometheus_available?).to be(false)
end
end
context 'clusters without prometheus' do
let(:cluster) { create(:cluster, projects: [project]) }
it 'returns false' do
expect(service.prometheus_available?).to be(false)
end
end
context 'no clusters' do
it 'returns false' do
expect(service.prometheus_available?).to be(false)
end
end
end
describe '#synchronize_service_state before_save callback' do
context 'no clusters with prometheus are installed' do
context 'when service is inactive' do
before do
service.active = false
end
it 'activates service when manual_configuration is enabled' do
expect { service.update!(manual_configuration: true) }.to change { service.active }.from(false).to(true)
end
it 'keeps service inactive when manual_configuration is disabled' do
expect { service.update!(manual_configuration: false) }.not_to change { service.active }.from(false)
end
end
context 'when service is active' do
before do
service.active = true
end
it 'keeps the service active when manual_configuration is enabled' do
expect { service.update!(manual_configuration: true) }.not_to change { service.active }.from(true)
end
it 'inactivates the service when manual_configuration is disabled' do
expect { service.update!(manual_configuration: false) }.to change { service.active }.from(true).to(false)
end
end
end
context 'with prometheus installed in the cluster' do
before do
allow(service).to receive(:prometheus_available?).and_return(true)
end
context 'when service is inactive' do
before do
service.active = false
end
it 'activates service when manual_configuration is enabled' do
expect { service.update!(manual_configuration: true) }.to change { service.active }.from(false).to(true)
end
it 'activates service when manual_configuration is disabled' do
expect { service.update!(manual_configuration: false) }.to change { service.active }.from(false).to(true)
end
end
context 'when service is active' do
before do
service.active = true
end
it 'keeps service active when manual_configuration is enabled' do
expect { service.update!(manual_configuration: true) }.not_to change { service.active }.from(true)
end
it 'keeps service active when manual_configuration is disabled' do
expect { service.update!(manual_configuration: false) }.not_to change { service.active }.from(true)
end
end
end
end
end
|
