gitlab-org--gitlab-foss/spec/services/prometheus/adapter_service_spec.rb
Thong Kuah 85b29c1c2f Add frozen_string_literal to spec/services
Probably useful as we often move these files to "new" files.
2019-04-12 10:14:54 +12:00

50 lines
1.6 KiB
Ruby

# frozen_string_literal: true
require 'spec_helper'
describe Prometheus::AdapterService do
let(:project) { create(:project) }
subject { described_class.new(project) }
describe '#prometheus_adapter' do
let(:cluster) { create(:cluster, :provided_by_user, environment_scope: '*', projects: [project]) }
context 'prometheus service can execute queries' do
let(:prometheus_service) { double(:prometheus_service, can_query?: true) }
before do
allow(project).to receive(:find_or_initialize_service).with('prometheus').and_return prometheus_service
end
it 'return prometheus service as prometheus adapter' do
expect(subject.prometheus_adapter).to eq(prometheus_service)
end
end
context "prometheus service can't execute queries" do
let(:prometheus_service) { double(:prometheus_service, can_query?: false) }
context 'with cluster with prometheus not available' do
let!(:prometheus) { create(:clusters_applications_prometheus, :installable, cluster: cluster) }
it 'returns nil' do
expect(subject.prometheus_adapter).to be_nil
end
end
context 'with cluster with prometheus available' do
let!(:prometheus) { create(:clusters_applications_prometheus, :installed, cluster: cluster) }
it 'returns application handling all environments' do
expect(subject.prometheus_adapter).to eq(prometheus)
end
end
context 'with cluster without prometheus installed' do
it 'returns nil' do
expect(subject.prometheus_adapter).to be_nil
end
end
end
end
end