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# frozen_string_literal: true
require 'spec_helper'
RSpec.describe Gitlab::Kubernetes::RolloutStatus do
include KubernetesHelpers
let(:track) { nil }
let(:specs) { specs_all_finished }
let(:pods) do
create_pods(name: "one", count: 3, track: 'stable') + create_pods(name: "two", count: 3, track: "canary")
end
let(:ingresses) { [] }
let(:specs_all_finished) do
[
kube_deployment(name: 'one'),
kube_deployment(name: 'two', track: track)
]
end
let(:specs_half_finished) do
[
kube_deployment(name: 'one'),
kube_deployment(name: 'two', track: track)
]
end
subject(:rollout_status) { described_class.from_deployments(*specs, pods_attrs: pods, ingresses: ingresses) }
describe '#deployments' do
it 'stores the deployments' do
expect(rollout_status.deployments).to be_kind_of(Array)
expect(rollout_status.deployments.size).to eq(2)
expect(rollout_status.deployments.first).to be_kind_of(::Gitlab::Kubernetes::Deployment)
end
end
describe '#instances' do
context 'for stable track' do
let(:track) { "any" }
let(:pods) do
create_pods(name: "one", count: 3, track: 'stable') + create_pods(name: "two", count: 3, track: "any")
end
it 'stores the union of deployment instances' do
expected = [
{ status: 'running', pod_name: "two", tooltip: 'two (Running)', track: 'any', stable: false },
{ status: 'running', pod_name: "two", tooltip: 'two (Running)', track: 'any', stable: false },
{ status: 'running', pod_name: "two", tooltip: 'two (Running)', track: 'any', stable: false },
{ status: 'running', pod_name: "one", tooltip: 'one (Running)', track: 'stable', stable: true },
{ status: 'running', pod_name: "one", tooltip: 'one (Running)', track: 'stable', stable: true },
{ status: 'running', pod_name: "one", tooltip: 'one (Running)', track: 'stable', stable: true }
]
expect(rollout_status.instances).to eq(expected)
end
end
context 'for stable track' do
let(:track) { 'canary' }
let(:pods) do
create_pods(name: "one", count: 3, track: 'stable') + create_pods(name: "two", count: 3, track: track)
end
it 'sorts stable instances last' do
expected = [
{ status: 'running', pod_name: "two", tooltip: 'two (Running)', track: 'canary', stable: false },
{ status: 'running', pod_name: "two", tooltip: 'two (Running)', track: 'canary', stable: false },
{ status: 'running', pod_name: "two", tooltip: 'two (Running)', track: 'canary', stable: false },
{ status: 'running', pod_name: "one", tooltip: 'one (Running)', track: 'stable', stable: true },
{ status: 'running', pod_name: "one", tooltip: 'one (Running)', track: 'stable', stable: true },
{ status: 'running', pod_name: "one", tooltip: 'one (Running)', track: 'stable', stable: true }
]
expect(rollout_status.instances).to eq(expected)
end
end
end
describe '#completion' do
subject { rollout_status.completion }
context 'when all instances are finished' do
let(:track) { 'canary' }
it { is_expected.to eq(100) }
end
context 'when half of the instances are finished' do
let(:track) { "canary" }
let(:pods) do
create_pods(name: "one", count: 3, track: 'stable') + create_pods(name: "two", count: 3, track: track, status: "Pending")
end
let(:specs) { specs_half_finished }
it { is_expected.to eq(50) }
end
context 'with one deployment' do
it 'sets the completion percentage when a deployment has more running pods than desired' do
deployments = [kube_deployment(name: 'one', track: 'one', replicas: 2)]
pods = create_pods(name: 'one', track: 'one', count: 3)
rollout_status = described_class.from_deployments(*deployments, pods_attrs: pods)
expect(rollout_status.completion).to eq(100)
end
end
context 'with two deployments on different tracks' do
it 'sets the completion percentage when all pods are complete' do
deployments = [
kube_deployment(name: 'one', track: 'one', replicas: 2),
kube_deployment(name: 'two', track: 'two', replicas: 2)
]
pods = create_pods(name: 'one', track: 'one', count: 2) + create_pods(name: 'two', track: 'two', count: 2)
rollout_status = described_class.from_deployments(*deployments, pods_attrs: pods)
expect(rollout_status.completion).to eq(100)
end
end
context 'with two deployments that both have track set to "stable"' do
it 'sets the completion percentage when all pods are complete' do
deployments = [
kube_deployment(name: 'one', track: 'stable', replicas: 2),
kube_deployment(name: 'two', track: 'stable', replicas: 2)
]
pods = create_pods(name: 'one', track: 'stable', count: 2) + create_pods(name: 'two', track: 'stable', count: 2)
rollout_status = described_class.from_deployments(*deployments, pods_attrs: pods)
expect(rollout_status.completion).to eq(100)
end
it 'sets the completion percentage when no pods are complete' do
deployments = [
kube_deployment(name: 'one', track: 'stable', replicas: 3),
kube_deployment(name: 'two', track: 'stable', replicas: 7)
]
rollout_status = described_class.from_deployments(*deployments, pods_attrs: [])
expect(rollout_status.completion).to eq(0)
end
it 'sets the completion percentage when a quarter of the pods are complete' do
deployments = [
kube_deployment(name: 'one', track: 'stable', replicas: 6),
kube_deployment(name: 'two', track: 'stable', replicas: 2)
]
pods = create_pods(name: 'one', track: 'stable', count: 2)
rollout_status = described_class.from_deployments(*deployments, pods_attrs: pods)
expect(rollout_status.completion).to eq(25)
end
end
context 'with two deployments, one with track set to "stable" and one with no track label' do
it 'sets the completion percentage when all pods are complete' do
deployments = [
kube_deployment(name: 'one', track: 'stable', replicas: 3),
kube_deployment(name: 'two', track: nil, replicas: 3)
]
pods = create_pods(name: 'one', track: 'stable', count: 3) + create_pods(name: 'two', track: nil, count: 3)
rollout_status = described_class.from_deployments(*deployments, pods_attrs: pods)
expect(rollout_status.completion).to eq(100)
end
it 'sets the completion percentage when no pods are complete' do
deployments = [
kube_deployment(name: 'one', track: 'stable', replicas: 1),
kube_deployment(name: 'two', track: nil, replicas: 1)
]
rollout_status = described_class.from_deployments(*deployments, pods_attrs: [])
expect(rollout_status.completion).to eq(0)
end
it 'sets the completion percentage when a third of the pods are complete' do
deployments = [
kube_deployment(name: 'one', track: 'stable', replicas: 2),
kube_deployment(name: 'two', track: nil, replicas: 7)
]
pods = create_pods(name: 'one', track: 'stable', count: 2) + create_pods(name: 'two', track: nil, count: 1)
rollout_status = described_class.from_deployments(*deployments, pods_attrs: pods)
expect(rollout_status.completion).to eq(33)
end
end
end
describe '#complete?' do
subject { rollout_status.complete? }
context 'when all instances are finished' do
let(:track) { 'canary' }
it { is_expected.to be_truthy }
end
context 'when half of the instances are finished' do
let(:track) { "canary" }
let(:pods) do
create_pods(name: "one", count: 3, track: 'stable') + create_pods(name: "two", count: 3, track: track, status: "Pending")
end
let(:specs) { specs_half_finished }
it { is_expected.to be_falsy}
end
end
describe '#found?' do
context 'when the specs are passed' do
it { is_expected.to be_found }
end
context 'when list of specs is empty' do
let(:specs) { [] }
it { is_expected.not_to be_found }
end
end
describe '.loading' do
subject { described_class.loading }
it { is_expected.to be_loading }
end
describe '#not_found?' do
context 'when the specs are passed' do
it { is_expected.not_to be_not_found }
end
context 'when list of specs is empty' do
let(:specs) { [] }
it { is_expected.to be_not_found }
end
end
describe '#canary_ingress_exists?' do
context 'when canary ingress exists' do
let(:ingresses) { [kube_ingress(track: :canary)] }
it 'returns true' do
expect(rollout_status.canary_ingress_exists?).to eq(true)
end
end
context 'when canary ingress does not exist' do
let(:ingresses) { [kube_ingress(track: :stable)] }
it 'returns false' do
expect(rollout_status.canary_ingress_exists?).to eq(false)
end
end
end
def create_pods(name:, count:, track: nil, status: 'Running' )
Array.new(count, kube_pod(name: name, status: status, track: track))
end
end
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