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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Projects::Serverless::FunctionsFinder do
include KubernetesHelpers
include PrometheusHelpers
include ReactiveCachingHelpers
let(:user) { create(:user) }
let(:project) { create(:project, :repository) }
let(:cluster) { create(:cluster, :project, :provided_by_gcp, projects: [project]) }
let(:service) { cluster.platform_kubernetes }
let(:environment) { create(:environment, project: project) }
let!(:deployment) { create(:deployment, :success, environment: environment, cluster: cluster) }
let(:knative_services_finder) { environment.knative_services_finder }
let(:namespace) do
create(:cluster_kubernetes_namespace,
cluster: cluster,
project: project,
environment: environment)
end
before do
project.add_maintainer(user)
end
describe '#knative_installed' do
context 'when environment does not exist yet' do
shared_examples 'before first deployment' do
let(:service) { cluster.platform_kubernetes }
let(:deployment) { nil }
it 'returns true if Knative is installed on cluster' do
stub_kubeclient_discover_knative_found(service.api_url)
function_finder = described_class.new(project)
synchronous_reactive_cache(function_finder)
expect(function_finder.knative_installed).to be true
end
it 'returns false if Knative is not installed on cluster' do
stub_kubeclient_discover_knative_not_found(service.api_url)
function_finder = described_class.new(project)
synchronous_reactive_cache(function_finder)
expect(function_finder.knative_installed).to be false
end
end
context 'when project level cluster is present and enabled' do
it_behaves_like 'before first deployment' do
let(:cluster) { create(:cluster, :project, :provided_by_gcp, enabled: true) }
let(:project) { cluster.project }
end
end
context 'when group level cluster is present and enabled' do
it_behaves_like 'before first deployment' do
let(:cluster) { create(:cluster, :group, :provided_by_gcp, enabled: true) }
let(:project) { create(:project, group: cluster.groups.first) }
end
end
context 'when instance level cluster is present and enabled' do
it_behaves_like 'before first deployment' do
let(:project) { create(:project) }
let(:cluster) { create(:cluster, :instance, :provided_by_gcp, enabled: true) }
end
end
context 'when project level cluster is present, but disabled' do
let(:cluster) { create(:cluster, :project, :provided_by_gcp, enabled: false) }
let(:project) { cluster.project }
let(:service) { cluster.platform_kubernetes }
let(:deployment) { nil }
it 'returns false even if Knative is installed on cluster' do
stub_kubeclient_discover_knative_found(service.api_url)
function_finder = described_class.new(project)
synchronous_reactive_cache(function_finder)
expect(function_finder.knative_installed).to be false
end
end
end
context 'when reactive_caching is still fetching data' do
it 'returns "checking"' do
expect(described_class.new(project).knative_installed).to eq 'checking'
end
end
context 'when reactive_caching has finished' do
before do
allow(Clusters::KnativeServicesFinder)
.to receive(:new)
.and_return(knative_services_finder)
synchronous_reactive_cache(knative_services_finder)
end
context 'when knative is not installed' do
it 'returns false' do
stub_kubeclient_discover_knative_not_found(service.api_url)
expect(described_class.new(project).knative_installed).to eq false
end
end
context 'reactive_caching is finished and knative is installed' do
it 'returns true' do
stub_kubeclient_knative_services(namespace: namespace.namespace)
stub_kubeclient_service_pods(nil, namespace: namespace.namespace)
expect(described_class.new(project).knative_installed).to be true
end
end
end
end
describe 'retrieve data from knative' do
context 'does not have knative installed' do
it { expect(described_class.new(project).execute).to be_empty }
end
context 'has knative installed' do
let!(:knative) { create(:clusters_applications_knative, :installed, cluster: cluster) }
let(:finder) { described_class.new(project) }
it 'there are no functions' do
expect(finder.execute).to be_empty
end
it 'there are functions', :use_clean_rails_memory_store_caching do
stub_kubeclient_service_pods
stub_reactive_cache(knative_services_finder,
{
services: kube_knative_services_body(namespace: namespace.namespace, name: cluster.project.name)["items"],
pods: kube_knative_pods_body(cluster.project.name, namespace.namespace)["items"]
},
*knative_services_finder.cache_args)
expect(finder.execute).not_to be_empty
end
it 'has a function', :use_clean_rails_memory_store_caching do
stub_kubeclient_service_pods
stub_reactive_cache(knative_services_finder,
{
services: kube_knative_services_body(namespace: namespace.namespace, name: cluster.project.name)["items"],
pods: kube_knative_pods_body(cluster.project.name, namespace.namespace)["items"]
},
*knative_services_finder.cache_args)
result = finder.service(cluster.environment_scope, cluster.project.name)
expect(result).to be_present
expect(result.name).to be_eql(cluster.project.name)
end
it 'has metrics', :use_clean_rails_memory_store_caching do
end
end
context 'has prometheus' do
let(:prometheus_adapter) { double('prometheus_adapter', can_query?: true) }
let!(:knative) { create(:clusters_applications_knative, :installed, cluster: cluster) }
let!(:prometheus) { create(:clusters_applications_prometheus, :installed, cluster: cluster) }
let(:finder) { described_class.new(project) }
before do
allow(Gitlab::Prometheus::Adapter).to receive(:new).and_return(double(prometheus_adapter: prometheus_adapter))
allow(prometheus_adapter).to receive(:query).and_return(prometheus_empty_body('matrix'))
end
it 'is available' do
expect(finder.has_prometheus?("*")).to be true
end
it 'has query data' do
expect(finder.invocation_metrics("*", cluster.project.name)).not_to be_nil
end
end
end
end
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