127 lines
4.7 KiB
Ruby
127 lines
4.7 KiB
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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describe Gitlab::Metrics::Dashboard::Processor do
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let(:project) { build(:project) }
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let(:environment) { create(:environment, project: project) }
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let(:dashboard_yml) { YAML.load_file('spec/fixtures/lib/gitlab/metrics/dashboard/sample_dashboard.yml') }
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describe 'process' do
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let(:process_params) { [project, environment, dashboard_yml] }
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let(:dashboard) { described_class.new(*process_params).process(insert_project_metrics: true) }
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it 'includes a path for the prometheus endpoint with each metric' do
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expect(all_metrics).to satisfy_all do |metric|
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metric[:prometheus_endpoint_path] == prometheus_path(metric[:query_range])
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end
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end
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context 'when dashboard config corresponds to common metrics' do
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let!(:common_metric) { create(:prometheus_metric, :common, identifier: 'metric_a1') }
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it 'inserts metric ids into the config' do
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target_metric = all_metrics.find { |metric| metric[:id] == 'metric_a1' }
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expect(target_metric).to include(:metric_id)
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expect(target_metric[:metric_id]).to eq(common_metric.id)
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end
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end
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context 'when the project has associated metrics' do
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let!(:project_response_metric) { create(:prometheus_metric, project: project, group: :response) }
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let!(:project_system_metric) { create(:prometheus_metric, project: project, group: :system) }
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let!(:project_business_metric) { create(:prometheus_metric, project: project, group: :business) }
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it 'includes project-specific metrics' do
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expect(all_metrics).to include get_metric_details(project_system_metric)
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expect(all_metrics).to include get_metric_details(project_response_metric)
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expect(all_metrics).to include get_metric_details(project_business_metric)
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end
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it 'orders groups by priority and panels by weight' do
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expected_metrics_order = [
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'metric_b', # group priority 10, panel weight 1
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'metric_a2', # group priority 1, panel weight 2
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'metric_a1', # group priority 1, panel weight 1
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project_business_metric.id, # group priority 0, panel weight nil (0)
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project_response_metric.id, # group priority -5, panel weight nil (0)
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project_system_metric.id, # group priority -10, panel weight nil (0)
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]
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actual_metrics_order = all_metrics.map { |m| m[:id] || m[:metric_id] }
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expect(actual_metrics_order).to eq expected_metrics_order
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end
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context 'when the dashboard should not include project metrics' do
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let(:dashboard) { described_class.new(*process_params).process(insert_project_metrics: false) }
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it 'includes only dashboard metrics' do
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metrics = all_metrics.map { |m| m[:id] }
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expect(metrics.length).to be(3)
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expect(metrics).to eq %w(metric_b metric_a2 metric_a1)
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end
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end
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end
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shared_examples_for 'errors with message' do |expected_message|
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it 'raises a DashboardLayoutError' do
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error_class = Gitlab::Metrics::Dashboard::Stages::BaseStage::DashboardProcessingError
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expect { dashboard }.to raise_error(error_class, expected_message)
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end
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end
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context 'when the dashboard is missing panel_groups' do
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let(:dashboard_yml) { {} }
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it_behaves_like 'errors with message', 'Top-level key :panel_groups must be an array'
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end
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context 'when the dashboard contains a panel_group which is missing panels' do
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let(:dashboard_yml) { { panel_groups: [{}] } }
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it_behaves_like 'errors with message', 'Each "panel_group" must define an array :panels'
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end
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context 'when the dashboard contains a panel which is missing metrics' do
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let(:dashboard_yml) { { panel_groups: [{ panels: [{}] }] } }
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it_behaves_like 'errors with message', 'Each "panel" must define an array :metrics'
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end
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context 'when the dashboard contains a metric which is missing a query' do
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let(:dashboard_yml) { { panel_groups: [{ panels: [{ metrics: [{}] }] }] } }
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it_behaves_like 'errors with message', 'Each "metric" must define one of :query or :query_range'
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end
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end
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private
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def all_metrics
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dashboard[:panel_groups].flat_map do |group|
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group[:panels].flat_map { |panel| panel[:metrics] }
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end
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end
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def get_metric_details(metric)
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{
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query_range: metric.query,
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unit: metric.unit,
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label: metric.legend,
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metric_id: metric.id,
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prometheus_endpoint_path: prometheus_path(metric.query)
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}
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end
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def prometheus_path(query)
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Gitlab::Routing.url_helpers.prometheus_api_project_environment_path(
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project,
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environment,
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proxy_path: :query_range,
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query: query
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)
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end
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end
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