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Diffstat (limited to 'spec/lib/gitlab/metrics/dashboard/processor_spec.rb')
-rw-r--r-- | spec/lib/gitlab/metrics/dashboard/processor_spec.rb | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/spec/lib/gitlab/metrics/dashboard/processor_spec.rb b/spec/lib/gitlab/metrics/dashboard/processor_spec.rb new file mode 100644 index 00000000000..be3c1095bd7 --- /dev/null +++ b/spec/lib/gitlab/metrics/dashboard/processor_spec.rb @@ -0,0 +1,105 @@ +# frozen_string_literal: true + +require 'spec_helper' + +describe Gitlab::Metrics::Dashboard::Processor do + let(:project) { build(:project) } + let(:environment) { build(:environment, project: project) } + let(:dashboard_yml) { YAML.load_file('spec/fixtures/lib/gitlab/metrics/dashboard/sample_dashboard.yml') } + + describe 'process' do + let(:process_params) { [project, environment, dashboard_yml] } + let(:dashboard) { described_class.new(*process_params).process(insert_project_metrics: true) } + + context 'when dashboard config corresponds to common metrics' do + let!(:common_metric) { create(:prometheus_metric, :common, identifier: 'metric_a1') } + + it 'inserts metric ids into the config' do + target_metric = all_metrics.find { |metric| metric[:id] == 'metric_a1' } + + expect(target_metric).to include(:metric_id) + expect(target_metric[:metric_id]).to eq(common_metric.id) + end + end + + context 'when the project has associated metrics' do + let!(:project_response_metric) { create(:prometheus_metric, project: project, group: :response) } + let!(:project_system_metric) { create(:prometheus_metric, project: project, group: :system) } + let!(:project_business_metric) { create(:prometheus_metric, project: project, group: :business) } + + it 'includes project-specific metrics' do + expect(all_metrics).to include get_metric_details(project_system_metric) + expect(all_metrics).to include get_metric_details(project_response_metric) + expect(all_metrics).to include get_metric_details(project_business_metric) + end + + it 'orders groups by priority and panels by weight' do + expected_metrics_order = [ + 'metric_b', # group priority 10, panel weight 1 + 'metric_a2', # group priority 1, panel weight 2 + 'metric_a1', # group priority 1, panel weight 1 + project_business_metric.id, # group priority 0, panel weight nil (0) + project_response_metric.id, # group priority -5, panel weight nil (0) + project_system_metric.id, # group priority -10, panel weight nil (0) + ] + actual_metrics_order = all_metrics.map { |m| m[:id] || m[:metric_id] } + + expect(actual_metrics_order).to eq expected_metrics_order + end + + context 'when the dashboard should not include project metrics' do + let(:dashboard) { described_class.new(*process_params).process(insert_project_metrics: false) } + + it 'includes only dashboard metrics' do + metrics = all_metrics.map { |m| m[:id] } + + expect(metrics.length).to be(3) + expect(metrics).to eq %w(metric_b metric_a2 metric_a1) + end + end + end + + shared_examples_for 'errors with message' do |expected_message| + it 'raises a DashboardLayoutError' do + error_class = Gitlab::Metrics::Dashboard::Stages::BaseStage::DashboardLayoutError + + expect { dashboard }.to raise_error(error_class, expected_message) + end + end + + context 'when the dashboard is missing panel_groups' do + let(:dashboard_yml) { {} } + + it_behaves_like 'errors with message', 'Top-level key :panel_groups must be an array' + end + + context 'when the dashboard contains a panel_group which is missing panels' do + let(:dashboard_yml) { { panel_groups: [{}] } } + + it_behaves_like 'errors with message', 'Each "panel_group" must define an array :panels' + end + + context 'when the dashboard contains a panel which is missing metrics' do + let(:dashboard_yml) { { panel_groups: [{ panels: [{}] }] } } + + it_behaves_like 'errors with message', 'Each "panel" must define an array :metrics' + end + end + + private + + def all_metrics + dashboard[:panel_groups].map do |group| + group[:panels].map { |panel| panel[:metrics] } + end.flatten + end + + def get_metric_details(metric) + { + query_range: metric.query, + unit: metric.unit, + label: metric.legend, + metric_id: metric.id + } + end +end |