debian-mirror-gitlab/spec/lib/gitlab/health_checks/puma_check_spec.rb

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# frozen_string_literal: true
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require 'spec_helper'
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RSpec.describe Gitlab::HealthChecks::PumaCheck do
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let(:result_class) { Gitlab::HealthChecks::Result }
let(:readiness) { described_class.readiness }
let(:metrics) { described_class.metrics }
shared_examples 'with state' do |(state, message)|
it "does provide readiness" do
expect(readiness).to eq(result_class.new('puma_check', state, message))
end
it "does provide metrics" do
expect(metrics).to include(
an_object_having_attributes(name: 'puma_check_success', value: state ? 1 : 0))
expect(metrics).to include(
an_object_having_attributes(name: 'puma_check_latency_seconds', value: be >= 0))
end
end
context 'when Puma is not loaded' do
before do
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allow(Gitlab::Runtime).to receive(:puma?).and_return(false)
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hide_const('Puma')
end
it "does not provide readiness and metrics" do
expect(readiness).to be_nil
expect(metrics).to be_nil
end
end
context 'when Puma is loaded' do
before do
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allow(Gitlab::Runtime).to receive(:puma?).and_return(true)
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stub_const('Puma', Module.new)
end
context 'when stats are missing' do
before do
expect(Puma).to receive(:stats).and_raise(NoMethodError)
end
it_behaves_like 'with state', [false, 'unexpected Puma check result: 0']
end
context 'for Single mode' do
before do
expect(Puma).to receive(:stats) do
'{}'
end
end
it_behaves_like 'with state', true
end
context 'for Cluster mode' do
before do
expect(Puma).to receive(:stats) do
'{"workers":2}'
end
end
it_behaves_like 'with state', true
end
end
end