105 lines
2.6 KiB
Ruby
105 lines
2.6 KiB
Ruby
require 'spec_helper'
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describe PrometheusService, models: true, caching: true do
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include PrometheusHelpers
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include ReactiveCachingHelpers
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let(:project) { create(:prometheus_project) }
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let(:service) { project.prometheus_service }
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describe "Associations" do
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it { is_expected.to belong_to :project }
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end
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describe 'Validations' do
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context 'when service is active' do
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before { subject.active = true }
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it { is_expected.to validate_presence_of(:api_url) }
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end
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context 'when service is inactive' do
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before { subject.active = false }
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it { is_expected.not_to validate_presence_of(:api_url) }
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end
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end
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describe '#test' do
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let!(:req_stub) { stub_prometheus_request(prometheus_query_url('1'), body: prometheus_value_body('vector')) }
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context 'success' do
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it 'reads the discovery endpoint' do
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expect(service.test[:success]).to be_truthy
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expect(req_stub).to have_been_requested
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end
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end
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context 'failure' do
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let!(:req_stub) { stub_prometheus_request(prometheus_query_url('1'), status: 404) }
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it 'fails to read the discovery endpoint' do
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expect(service.test[:success]).to be_falsy
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expect(req_stub).to have_been_requested
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end
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end
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end
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describe '#metrics' do
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let(:environment) { build_stubbed(:environment, slug: 'env-slug') }
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subject { service.metrics(environment) }
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around do |example|
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Timecop.freeze { example.run }
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end
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context 'with valid data' do
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before do
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stub_reactive_cache(service, prometheus_data, 'env-slug')
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end
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it 'returns reactive data' do
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is_expected.to eq(prometheus_data)
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end
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end
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end
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describe '#calculate_reactive_cache' do
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let(:environment) { build_stubbed(:environment, slug: 'env-slug') }
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around do |example|
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Timecop.freeze { example.run }
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end
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subject do
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service.calculate_reactive_cache(environment.slug)
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end
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context 'when service is inactive' do
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before do
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service.active = false
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end
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it { is_expected.to be_nil }
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end
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context 'when Prometheus responds with valid data' do
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before do
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stub_all_prometheus_requests(environment.slug)
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end
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it { expect(subject.to_json).to eq(prometheus_data.to_json) }
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end
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[404, 500].each do |status|
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context "when Prometheus responds with #{status}" do
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before do
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stub_all_prometheus_requests(environment.slug, status: status, body: 'QUERY FAILED!')
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end
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it { is_expected.to eq(success: false, result: %(#{status} - "QUERY FAILED!")) }
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end
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end
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end
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end
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