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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Gitlab::Metrics::Dashboard::Importers::PrometheusMetrics do
include MetricsDashboardHelpers
describe '#execute' do
let(:project) { create(:project) }
let(:dashboard_path) { 'path/to/dashboard.yml' }
let(:prometheus_adapter) { double('adapter', clear_prometheus_reactive_cache!: nil) }
subject { described_class.new(dashboard_hash, project: project, dashboard_path: dashboard_path) }
before do
allow_next_instance_of(::Clusters::Applications::ScheduleUpdateService) do |update_service|
allow(update_service).to receive(:execute)
end
end
context 'valid dashboard' do
let(:dashboard_hash) { load_sample_dashboard }
context 'with all new metrics' do
it 'creates PrometheusMetrics' do
expect { subject.execute }.to change { PrometheusMetric.count }.by(3)
end
end
context 'with existing metrics' do
let(:existing_metric_attributes) do
{
project: project,
identifier: 'metric_b',
title: 'overwrite',
y_label: 'overwrite',
query: 'overwrite',
unit: 'overwrite',
legend: 'overwrite',
dashboard_path: dashboard_path
}
end
let!(:existing_metric) do
create(:prometheus_metric, existing_metric_attributes)
end
let!(:existing_alert) do
alert = create(:prometheus_alert, project: project, prometheus_metric: existing_metric)
existing_metric.prometheus_alerts << alert
alert
end
it 'updates existing PrometheusMetrics' do
subject.execute
expect(existing_metric.reload.attributes.with_indifferent_access).to include({
title: 'Super Chart B',
y_label: 'y_label',
query: 'query',
unit: 'unit',
legend: 'Legend Label'
})
end
it 'creates new PrometheusMetrics' do
expect { subject.execute }.to change { PrometheusMetric.count }.by(2)
end
it 'updates affected environments' do
expect(::Clusters::Applications::ScheduleUpdateService).to receive(:new).with(
existing_alert.environment.cluster_prometheus_adapter,
project
).and_return(double('ScheduleUpdateService', execute: true))
subject.execute
end
context 'with stale metrics' do
let!(:stale_metric) do
create(:prometheus_metric,
project: project,
identifier: 'stale_metric',
dashboard_path: dashboard_path,
group: 3
)
end
let!(:stale_alert) do
alert = create(:prometheus_alert, project: project, prometheus_metric: stale_metric)
stale_metric.prometheus_alerts << alert
alert
end
it 'updates existing PrometheusMetrics' do
subject.execute
expect(existing_metric.reload.attributes.with_indifferent_access).to include({
title: 'Super Chart B',
y_label: 'y_label',
query: 'query',
unit: 'unit',
legend: 'Legend Label'
})
end
it 'deletes stale metrics' do
subject.execute
expect { stale_metric.reload }.to raise_error(ActiveRecord::RecordNotFound)
end
it 'deletes stale alert' do
subject.execute
expect { stale_alert.reload }.to raise_error(ActiveRecord::RecordNotFound)
end
it 'updates affected environments' do
expect(::Clusters::Applications::ScheduleUpdateService).to receive(:new).with(
existing_alert.environment.cluster_prometheus_adapter,
project
).and_return(double('ScheduleUpdateService', execute: true))
subject.execute
end
end
end
end
context 'invalid dashboard' do
let(:dashboard_hash) { {} }
it 'returns false' do
expect(subject.execute).to eq(false)
end
end
end
end
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