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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Clusters::Integrations::PrometheusHealthCheckService, '#execute', feature_category: :kubernetes_management do
let(:service) { described_class.new(cluster) }
subject { service.execute }
RSpec.shared_examples 'no alert' do
it 'does not send alert' do
expect(Projects::Alerting::NotifyService).not_to receive(:new)
subject
end
end
RSpec.shared_examples 'sends alert' do
it 'sends an alert' do
expect_next_instance_of(Projects::Alerting::NotifyService) do |notify_service|
expect(notify_service).to receive(:execute).with(integration.token, integration)
end
subject
end
end
RSpec.shared_examples 'correct health stored' do
it 'stores the correct health of prometheus' do
subject
expect(prometheus.healthy?).to eq(client_healthy)
end
end
context 'when cluster is not project_type' do
let(:cluster) { create(:cluster, :instance) }
it { expect { subject }.to raise_error(RuntimeError, 'Invalid cluster type. Only project types are allowed.') }
end
context 'when cluster is project_type' do
let_it_be(:project) { create(:project) }
let_it_be(:integration) { create(:alert_management_http_integration, project: project) }
let(:previous_health_status) { :healthy }
let(:prometheus) { create(:clusters_integrations_prometheus, enabled: prometheus_enabled, health_status: previous_health_status) }
let(:cluster) { create(:cluster, :project, integration_prometheus: prometheus, projects: [project]) }
context 'when prometheus not enabled' do
let(:prometheus_enabled) { false }
it { expect(subject).to eq(nil) }
include_examples 'no alert'
end
context 'when prometheus enabled' do
let(:prometheus_enabled) { true }
before do
client = instance_double('Gitlab::PrometheusClient', healthy?: client_healthy)
expect(prometheus).to receive(:prometheus_client).and_return(client)
end
context 'when newly unhealthy' do
let(:previous_health_status) { :healthy }
let(:client_healthy) { false }
include_examples 'sends alert'
include_examples 'correct health stored'
end
context 'when newly healthy' do
let(:previous_health_status) { :unhealthy }
let(:client_healthy) { true }
include_examples 'no alert'
include_examples 'correct health stored'
end
context 'when continuously unhealthy' do
let(:previous_health_status) { :unhealthy }
let(:client_healthy) { false }
include_examples 'no alert'
include_examples 'correct health stored'
end
context 'when continuously healthy' do
let(:previous_health_status) { :healthy }
let(:client_healthy) { true }
include_examples 'no alert'
include_examples 'correct health stored'
end
context 'when first health check and healthy' do
let(:previous_health_status) { :unknown }
let(:client_healthy) { true }
include_examples 'no alert'
include_examples 'correct health stored'
end
context 'when first health check and not healthy' do
let(:previous_health_status) { :unknown }
let(:client_healthy) { false }
include_examples 'sends alert'
include_examples 'correct health stored'
end
end
end
end
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