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require 'rails_helper'
describe Gitlab::Kubernetes::Helm::InstallCommand do
let(:prometheus) { create(:clusters_applications_prometheus) }
describe "#initialize" do
context "With all the params" do
subject { described_class.new(prometheus.name, install_helm: true, chart: prometheus.chart, chart_values_file: prometheus.chart_values_file) }
it 'should assign all parameters' do
expect(subject.name).to eq(prometheus.name)
expect(subject.install_helm).to be_truthy
expect(subject.chart).to eq(prometheus.chart)
expect(subject.chart_values_file).to eq("#{Rails.root}/vendor/prometheus/values.yaml")
end
end
context 'when install_helm is not set' do
subject { described_class.new(prometheus.name, chart: prometheus.chart, chart_values_file: true) }
it 'should set install_helm as false' do
expect(subject.install_helm).to be_falsy
end
end
context 'when chart is not set' do
subject { described_class.new(prometheus.name, install_helm: true) }
it 'should set chart as nil' do
expect(subject.chart).to be_falsy
end
end
context 'when chart_values_file is not set' do
subject { described_class.new(prometheus.name, install_helm: true, chart: prometheus.chart) }
it 'should set chart_values_file as nil' do
expect(subject.chart_values_file).to be_falsy
end
end
end
describe "#generate_script" do
let(:install_command) { described_class.new(prometheus.name, install_helm: install_helm) }
let(:client) { double('kubernetes client') }
let(:namespace) { Gitlab::Kubernetes::Namespace.new(Gitlab::Kubernetes::Helm::NAMESPACE, client) }
subject { install_command.send(:generate_script, namespace.name) }
context 'when install helm is true' do
let(:install_helm) { true }
let(:command) do
<<~MSG
set -eo pipefail
apk add -U ca-certificates openssl >/dev/null
wget -q -O - https://kubernetes-helm.storage.googleapis.com/helm-v2.7.0-linux-amd64.tar.gz | tar zxC /tmp >/dev/null
mv /tmp/linux-amd64/helm /usr/bin/
helm init >/dev/null
MSG
end
it 'should return appropriate command' do
is_expected.to eq(command)
end
end
context 'when install helm is false' do
let(:install_helm) { false }
let(:command) do
<<~MSG
set -eo pipefail
apk add -U ca-certificates openssl >/dev/null
wget -q -O - https://kubernetes-helm.storage.googleapis.com/helm-v2.7.0-linux-amd64.tar.gz | tar zxC /tmp >/dev/null
mv /tmp/linux-amd64/helm /usr/bin/
helm init --client-only >/dev/null
MSG
end
it 'should return appropriate command' do
is_expected.to eq(command)
end
end
context 'when chart is present' do
let(:install_command) { described_class.new(prometheus.name, chart: prometheus.chart) }
let(:command) do
<<~MSG.chomp
set -eo pipefail
apk add -U ca-certificates openssl >/dev/null
wget -q -O - https://kubernetes-helm.storage.googleapis.com/helm-v2.7.0-linux-amd64.tar.gz | tar zxC /tmp >/dev/null
mv /tmp/linux-amd64/helm /usr/bin/
helm init --client-only >/dev/null
helm install #{prometheus.chart} --name #{prometheus.name} --namespace #{namespace.name} >/dev/null
MSG
end
it 'should return appropriate command' do
is_expected.to eq(command)
end
end
end
describe "#pod_name" do
let(:install_command) { described_class.new(prometheus.name, install_helm: true, chart: prometheus.chart, chart_values_file: true) }
subject { install_command.send(:pod_name) }
it { is_expected.to eq('install-prometheus') }
end
end
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