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require 'spec_helper'
describe Clusters::Applications::InstallService do
describe '#execute' do
let(:application) { create(:cluster_applications_helm, :scheduled) }
let(:service) { described_class.new(application) }
let(:helm_client) { instance_double(Gitlab::Kubernetes::Helm) }
before do
allow(service).to receive(:helm_api).and_return(helm_client)
end
context 'when there are no errors' do
before do
expect(helm_client).to receive(:install).with(application.install_command)
allow(ClusterWaitForAppInstallationWorker).to receive(:perform_in).and_return(nil)
end
it 'make the application installing' do
expect(application.cluster).not_to be_nil
service.execute
expect(application).to be_installing
end
it 'schedule async installation status check' do
expect(ClusterWaitForAppInstallationWorker).to receive(:perform_in).once
service.execute
end
end
context 'when k8s cluster communication fails' do
before do
error = KubeException.new(500, 'system failure', nil)
expect(helm_client).to receive(:install).with(application.install_command).and_raise(error)
end
it 'make the application errored' do
service.execute
expect(application).to be_errored
expect(application.status_reason).to match(/kubernetes error:/i)
end
end
context 'when application cannot be persisted' do
let(:application) { build(:cluster_applications_helm, :scheduled) }
it 'make the application errored' do
expect(application).to receive(:make_installing!).once.and_raise(ActiveRecord::RecordInvalid)
expect(helm_client).not_to receive(:install)
service.execute
expect(application).to be_errored
end
end
end
end
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