debian-mirror-gitlab/spec/controllers/projects/serverless/functions_controller_spec.rb

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# frozen_string_literal: true
require 'spec_helper'
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RSpec.describe Projects::Serverless::FunctionsController do
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include KubernetesHelpers
include ReactiveCachingHelpers
let(:user) { create(:user) }
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let(:project) { create(:project, :repository) }
let(:cluster) { create(:cluster, :project, :provided_by_gcp, projects: [project]) }
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let(:service) { cluster.platform_kubernetes }
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let(:environment) { create(:environment, project: project) }
let!(:deployment) { create(:deployment, :success, environment: environment, cluster: cluster) }
let(:knative_services_finder) { environment.knative_services_finder }
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let(:function_description) { 'A serverless function' }
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let(:function_name) { 'some-function-name' }
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let(:knative_stub_options) do
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{ namespace: namespace.namespace, name: function_name, description: function_description }
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end
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let(:knative) { create(:clusters_applications_knative, :installed, cluster: cluster) }
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let(:namespace) do
create(:cluster_kubernetes_namespace,
cluster: cluster,
cluster_project: cluster.cluster_project,
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project: cluster.cluster_project.project,
environment: environment)
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end
before do
project.add_maintainer(user)
sign_in(user)
end
def params(opts = {})
opts.reverse_merge(namespace_id: project.namespace.to_param,
project_id: project.to_param)
end
describe 'GET #index' do
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let(:expected_json) { { 'knative_installed' => knative_state, 'functions' => functions } }
context 'when cache is being read' do
let(:knative_state) { 'checking' }
let(:functions) { [] }
before do
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get :index, params: params({ format: :json })
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end
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it 'returns checking' do
expect(json_response).to eq expected_json
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end
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it { expect(response).to have_gitlab_http_status(:ok) }
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end
context 'when cache is ready' do
let(:knative_state) { true }
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before do
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allow(Clusters::KnativeServicesFinder)
.to receive(:new)
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.and_return(knative_services_finder)
synchronous_reactive_cache(knative_services_finder)
stub_kubeclient_service_pods(
kube_response({ "kind" => "PodList", "items" => [] }),
namespace: namespace.namespace
)
end
context 'when no functions were found' do
let(:functions) { [] }
before do
stub_kubeclient_knative_services(
namespace: namespace.namespace,
response: kube_response({ "kind" => "ServiceList", "items" => [] })
)
get :index, params: params({ format: :json })
end
it 'returns checking' do
expect(json_response).to eq expected_json
end
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it { expect(response).to have_gitlab_http_status(:ok) }
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end
context 'when functions were found' do
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let(:functions) { [{}, {}] }
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before do
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stub_kubeclient_knative_services(namespace: namespace.namespace, cluster_id: cluster.id, name: function_name)
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end
it 'returns functions' do
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get :index, params: params({ format: :json })
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expect(json_response["functions"]).not_to be_empty
end
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it 'filters out the functions whose cluster the user does not have permission to read' do
allow(controller).to receive(:can?).and_return(true)
expect(controller).to receive(:can?).with(user, :read_cluster, cluster).and_return(false)
get :index, params: params({ format: :json })
expect(json_response["functions"]).to be_empty
end
it 'returns a successful response status' do
get :index, params: params({ format: :json })
expect(response).to have_gitlab_http_status(:ok)
end
context 'when there is serverless domain for a cluster' do
let!(:serverless_domain_cluster) do
create(:serverless_domain_cluster, clusters_applications_knative_id: knative.id)
end
it 'returns JSON with function details with serverless domain URL' do
get :index, params: params({ format: :json })
expect(response).to have_gitlab_http_status(:ok)
expect(json_response["functions"]).not_to be_empty
expect(json_response["functions"]).to all(
include(
'url' => "https://#{function_name}-#{serverless_domain_cluster.uuid[0..1]}a1#{serverless_domain_cluster.uuid[2..-3]}f2#{serverless_domain_cluster.uuid[-2..-1]}#{"%x" % environment.id}-#{environment.slug}.#{serverless_domain_cluster.domain}"
)
)
end
end
context 'when there is no serverless domain for a cluster' do
it 'keeps function URL as it was' do
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expect(::Serverless::Domain).not_to receive(:new)
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get :index, params: params({ format: :json })
expect(response).to have_gitlab_http_status(:ok)
end
end
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end
end
end
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describe 'GET #show' do
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context 'with function that does not exist' do
it 'returns 404' do
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get :show, params: params({ format: :json, environment_id: "*", id: "foo" })
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expect(response).to have_gitlab_http_status(:not_found)
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end
end
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context 'with valid data', :use_clean_rails_memory_store_caching do
shared_examples 'GET #show with valid data' do
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context 'when there is serverless domain for a cluster' do
let!(:serverless_domain_cluster) do
create(:serverless_domain_cluster, clusters_applications_knative_id: knative.id)
end
it 'returns JSON with function details with serverless domain URL' do
get :show, params: params({ format: :json, environment_id: "*", id: function_name })
expect(response).to have_gitlab_http_status(:ok)
expect(json_response).to include(
'url' => "https://#{function_name}-#{serverless_domain_cluster.uuid[0..1]}a1#{serverless_domain_cluster.uuid[2..-3]}f2#{serverless_domain_cluster.uuid[-2..-1]}#{"%x" % environment.id}-#{environment.slug}.#{serverless_domain_cluster.domain}"
)
end
it 'returns 404 when user does not have permission to read the cluster' do
allow(controller).to receive(:can?).and_return(true)
expect(controller).to receive(:can?).with(user, :read_cluster, cluster).and_return(false)
get :show, params: params({ format: :json, environment_id: "*", id: function_name })
expect(response).to have_gitlab_http_status(:not_found)
end
end
context 'when there is no serverless domain for a cluster' do
it 'keeps function URL as it was' do
get :show, params: params({ format: :json, environment_id: "*", id: function_name })
expect(response).to have_gitlab_http_status(:ok)
expect(json_response).to include(
'url' => "http://#{function_name}.#{namespace.namespace}.example.com"
)
end
end
it 'return json with function details' do
get :show, params: params({ format: :json, environment_id: "*", id: function_name })
expect(response).to have_gitlab_http_status(:ok)
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expect(json_response).to include(
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'name' => function_name,
'url' => "http://#{function_name}.#{namespace.namespace}.example.com",
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'description' => function_description,
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'podcount' => 0
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)
end
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end
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context 'on Knative 0.5.0' do
before do
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prepare_knative_stubs(knative_05_service(**knative_stub_options))
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end
include_examples 'GET #show with valid data'
end
context 'on Knative 0.6.0' do
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before do
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prepare_knative_stubs(knative_06_service(**knative_stub_options))
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end
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include_examples 'GET #show with valid data'
end
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context 'on Knative 0.7.0' do
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before do
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prepare_knative_stubs(knative_07_service(**knative_stub_options))
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end
include_examples 'GET #show with valid data'
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end
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context 'on Knative 0.9.0' do
before do
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prepare_knative_stubs(knative_09_service(**knative_stub_options))
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end
include_examples 'GET #show with valid data'
end
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end
end
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describe 'GET #metrics' do
context 'invalid data' do
it 'has a bad function name' do
get :metrics, params: params({ format: :json, environment_id: "*", id: "foo" })
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expect(response).to have_gitlab_http_status(:no_content)
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end
end
end
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describe 'GET #index with data', :use_clean_rails_memory_store_caching do
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shared_examples 'GET #index with data' do
it 'has data' do
get :index, params: params({ format: :json })
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expect(response).to have_gitlab_http_status(:ok)
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expect(json_response).to match({
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'knative_installed' => 'checking',
'functions' => [
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a_hash_including(
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'name' => function_name,
'url' => "http://#{function_name}.#{namespace.namespace}.example.com",
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'description' => function_description
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)
]
})
end
it 'has data in html' do
get :index, params: params
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expect(response).to have_gitlab_http_status(:ok)
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end
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end
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context 'on Knative 0.5.0' do
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before do
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prepare_knative_stubs(knative_05_service(**knative_stub_options))
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end
include_examples 'GET #index with data'
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end
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context 'on Knative 0.6.0' do
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before do
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prepare_knative_stubs(knative_06_service(**knative_stub_options))
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end
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include_examples 'GET #index with data'
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end
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context 'on Knative 0.7.0' do
before do
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prepare_knative_stubs(knative_07_service(**knative_stub_options))
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end
include_examples 'GET #index with data'
end
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context 'on Knative 0.9.0' do
before do
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prepare_knative_stubs(knative_09_service(**knative_stub_options))
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end
include_examples 'GET #index with data'
end
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end
def prepare_knative_stubs(knative_service)
stub_kubeclient_service_pods
stub_reactive_cache(knative_services_finder,
{
services: [knative_service],
pods: kube_knative_pods_body(cluster.project.name, namespace.namespace)["items"]
},
*knative_services_finder.cache_args)
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end
end