debian-mirror-gitlab/spec/controllers/projects/prometheus/alerts_controller_spec.rb

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2020-04-22 19:07:51 +05:30
# frozen_string_literal: true
require 'spec_helper'
describe Projects::Prometheus::AlertsController do
let_it_be(:user) { create(:user) }
let_it_be(:project) { create(:project) }
let_it_be(:environment) { create(:environment, project: project) }
let_it_be(:metric) { create(:prometheus_metric, project: project) }
before do
project.add_maintainer(user)
sign_in(user)
end
shared_examples 'unprivileged' do
before do
project.add_developer(user)
end
it 'returns not_found' do
make_request
expect(response).to have_gitlab_http_status(:not_found)
end
end
shared_examples 'project non-specific environment' do |status|
let(:other) { create(:environment) }
it "returns #{status}" do
make_request(environment_id: other)
expect(response).to have_gitlab_http_status(status)
end
if status == :ok
it 'returns no prometheus alerts' do
make_request(environment_id: other)
expect(json_response).to be_empty
end
end
end
shared_examples 'project non-specific metric' do |status|
let(:other) { create(:prometheus_alert) }
it "returns #{status}" do
make_request(id: other.prometheus_metric_id)
expect(response).to have_gitlab_http_status(status)
end
end
describe 'GET #index' do
def make_request(opts = {})
get :index, params: request_params(opts, environment_id: environment)
end
context 'when project has no prometheus alert' do
it 'returns an empty response' do
make_request
expect(response).to have_gitlab_http_status(:ok)
expect(json_response).to be_empty
end
end
context 'when project has prometheus alerts' do
let(:production) { create(:environment, project: project) }
let(:staging) { create(:environment, project: project) }
let(:json_alert_ids) { json_response.map { |alert| alert['id'] } }
let!(:production_alerts) do
create_list(:prometheus_alert, 2, project: project, environment: production)
end
let!(:staging_alerts) do
create_list(:prometheus_alert, 1, project: project, environment: staging)
end
it 'contains prometheus alerts only for the production environment' do
make_request(environment_id: production)
expect(response).to have_gitlab_http_status(:ok)
expect(json_response.count).to eq(2)
expect(json_alert_ids).to eq(production_alerts.map(&:id))
end
it 'contains prometheus alerts only for the staging environment' do
make_request(environment_id: staging)
expect(response).to have_gitlab_http_status(:ok)
expect(json_response.count).to eq(1)
expect(json_alert_ids).to eq(staging_alerts.map(&:id))
end
it 'does not return prometheus alerts without environment' do
make_request(environment_id: nil)
expect(response).to have_gitlab_http_status(:ok)
expect(json_response).to be_empty
end
end
it_behaves_like 'unprivileged'
it_behaves_like 'project non-specific environment', :ok
end
describe 'GET #show' do
let(:alert) do
create(:prometheus_alert,
project: project,
environment: environment,
prometheus_metric: metric)
end
def make_request(opts = {})
get :show, params: request_params(
opts,
id: alert.prometheus_metric_id,
environment_id: environment
)
end
context 'when alert does not exist' do
it 'returns not_found' do
make_request(id: 0)
expect(response).to have_gitlab_http_status(:not_found)
end
end
context 'when alert exists' do
let(:alert_params) do
{
'id' => alert.id,
'title' => alert.title,
'query' => alert.query,
'operator' => alert.computed_operator,
'threshold' => alert.threshold,
'alert_path' => alert_path(alert)
}
end
it 'renders the alert' do
make_request
expect(response).to have_gitlab_http_status(:ok)
expect(json_response).to include(alert_params)
end
it_behaves_like 'unprivileged'
it_behaves_like 'project non-specific environment', :not_found
it_behaves_like 'project non-specific metric', :not_found
end
end
describe 'POST #notify' do
let(:service_response) { ServiceResponse.success }
let(:notify_service) { instance_double(Projects::Prometheus::Alerts::NotifyService, execute: service_response) }
before do
sign_out(user)
expect(Projects::Prometheus::Alerts::NotifyService)
.to receive(:new)
.with(project, nil, duck_type(:permitted?))
.and_return(notify_service)
end
it 'returns ok if notification succeeds' do
expect(notify_service).to receive(:execute).and_return(ServiceResponse.success)
post :notify, params: project_params, session: { as: :json }
expect(response).to have_gitlab_http_status(:ok)
end
it 'returns unprocessable entity if notification fails' do
expect(notify_service).to receive(:execute).and_return(
ServiceResponse.error(message: 'Unprocessable Entity', http_status: :unprocessable_entity)
)
post :notify, params: project_params, session: { as: :json }
expect(response).to have_gitlab_http_status(:unprocessable_entity)
end
context 'bearer token' do
context 'when set' do
it 'extracts bearer token' do
request.headers['HTTP_AUTHORIZATION'] = 'Bearer some token'
expect(notify_service).to receive(:execute).with('some token')
post :notify, params: project_params, as: :json
end
it 'pass nil if cannot extract a non-bearer token' do
request.headers['HTTP_AUTHORIZATION'] = 'some token'
expect(notify_service).to receive(:execute).with(nil)
post :notify, params: project_params, as: :json
end
end
context 'when missing' do
it 'passes nil' do
expect(notify_service).to receive(:execute).with(nil)
post :notify, params: project_params, as: :json
end
end
end
end
describe 'POST #create' do
let(:schedule_update_service) { spy }
let(:alert_params) do
{
'title' => metric.title,
'query' => metric.query,
'operator' => '>',
'threshold' => 1.0
}
end
def make_request(opts = {})
post :create, params: request_params(
opts,
operator: '>',
threshold: '1',
environment_id: environment,
prometheus_metric_id: metric
)
end
it 'creates a new prometheus alert' do
allow(::Clusters::Applications::ScheduleUpdateService)
.to receive(:new).and_return(schedule_update_service)
make_request
expect(schedule_update_service).to have_received(:execute)
expect(response).to have_gitlab_http_status(:ok)
expect(json_response).to include(alert_params)
end
it 'returns no_content for an invalid metric' do
make_request(prometheus_metric_id: 'invalid')
expect(response).to have_gitlab_http_status(:no_content)
end
it_behaves_like 'unprivileged'
it_behaves_like 'project non-specific environment', :no_content
end
describe 'PUT #update' do
let(:schedule_update_service) { spy }
let(:alert) do
create(:prometheus_alert,
project: project,
environment: environment,
prometheus_metric: metric)
end
let(:alert_params) do
{
'id' => alert.id,
'title' => alert.title,
'query' => alert.query,
'operator' => '<',
'threshold' => alert.threshold,
'alert_path' => alert_path(alert)
}
end
before do
allow(::Clusters::Applications::ScheduleUpdateService)
.to receive(:new).and_return(schedule_update_service)
end
def make_request(opts = {})
put :update, params: request_params(
opts,
id: alert.prometheus_metric_id,
operator: '<',
environment_id: alert.environment
)
end
it 'updates an already existing prometheus alert' do
expect { make_request(operator: '<') }
.to change { alert.reload.operator }.to('lt')
expect(schedule_update_service).to have_received(:execute)
expect(response).to have_gitlab_http_status(:ok)
expect(json_response).to include(alert_params)
end
it_behaves_like 'unprivileged'
it_behaves_like 'project non-specific environment', :not_found
it_behaves_like 'project non-specific metric', :not_found
end
describe 'DELETE #destroy' do
let(:schedule_update_service) { spy }
let!(:alert) do
create(:prometheus_alert, project: project, prometheus_metric: metric)
end
before do
allow(::Clusters::Applications::ScheduleUpdateService)
.to receive(:new).and_return(schedule_update_service)
end
def make_request(opts = {})
delete :destroy, params: request_params(
opts,
id: alert.prometheus_metric_id,
environment_id: alert.environment
)
end
it 'destroys the specified prometheus alert' do
expect { make_request }.to change { PrometheusAlert.count }.by(-1)
expect(schedule_update_service).to have_received(:execute)
end
it_behaves_like 'unprivileged'
it_behaves_like 'project non-specific environment', :not_found
it_behaves_like 'project non-specific metric', :not_found
end
describe 'GET #metrics_dashboard' do
let!(:alert) do
create(:prometheus_alert,
project: project,
environment: environment,
prometheus_metric: metric)
end
it 'returns a json object with the correct keys' do
get :metrics_dashboard, params: request_params(id: metric.id, environment_id: alert.environment.id), format: :json
expect(response).to have_gitlab_http_status(:ok)
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expect(json_response.keys).to contain_exactly('dashboard', 'status', 'metrics_data')
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end
it 'is the correct embed' do
get :metrics_dashboard, params: request_params(id: metric.id, environment_id: alert.environment.id), format: :json
title = json_response['dashboard']['panel_groups'][0]['panels'][0]['title']
expect(title).to eq(metric.title)
end
it 'finds the first alert embed without environment_id' do
get :metrics_dashboard, params: request_params(id: metric.id), format: :json
title = json_response['dashboard']['panel_groups'][0]['panels'][0]['title']
expect(title).to eq(metric.title)
end
it 'returns 404 for non-existant alerts' do
get :metrics_dashboard, params: request_params(id: 0), format: :json
expect(response).to have_gitlab_http_status(:not_found)
end
end
def project_params(opts = {})
opts.reverse_merge(namespace_id: project.namespace, project_id: project)
end
def request_params(opts = {}, defaults = {})
project_params(opts.reverse_merge(defaults))
end
def alert_path(alert)
project_prometheus_alert_path(
project,
alert.prometheus_metric_id,
environment_id: alert.environment,
format: :json
)
end
end