debian-mirror-gitlab/spec/models/blob_viewer/metrics_dashboard_yml_spec.rb

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# frozen_string_literal: true
require 'spec_helper'
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RSpec.describe BlobViewer::MetricsDashboardYml do
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include FakeBlobHelpers
include RepoHelpers
let_it_be(:project) { create(:project, :repository) }
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let(:blob) { fake_blob(path: '.gitlab/dashboards/custom-dashboard.yml', data: data) }
let(:sha) { sample_commit.id }
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let(:data) { fixture_file('lib/gitlab/metrics/dashboard/sample_dashboard.yml') }
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subject(:viewer) { described_class.new(blob) }
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context 'when the definition is valid' do
describe '#valid?' do
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before do
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allow(PerformanceMonitoring::PrometheusDashboard).to receive(:from_json)
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end
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it 'calls prepare! on the viewer' do
expect(viewer).to receive(:prepare!)
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viewer.valid?
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end
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it 'processes dashboard yaml and returns true', :aggregate_failures do
yml = ::Gitlab::Config::Loader::Yaml.new(data).load_raw!
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expect_next_instance_of(::Gitlab::Config::Loader::Yaml, data) do |loader|
expect(loader).to receive(:load_raw!).and_call_original
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end
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expect(PerformanceMonitoring::PrometheusDashboard)
.to receive(:from_json)
.with(yml)
.and_call_original
expect(viewer.valid?).to be true
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end
end
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describe '#errors' do
it 'returns empty array' do
expect(viewer.errors).to eq []
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end
end
end
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context 'when definition is invalid' do
let(:error) { ActiveModel::ValidationError.new(PerformanceMonitoring::PrometheusDashboard.new.tap(&:validate)) }
let(:data) do
<<~YAML
dashboard:
YAML
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end
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describe '#valid?' do
it 'returns false' do
expect(PerformanceMonitoring::PrometheusDashboard)
.to receive(:from_json).and_raise(error)
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expect(viewer.valid?).to be false
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end
end
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describe '#errors' do
it 'returns validation errors' do
allow(PerformanceMonitoring::PrometheusDashboard)
.to receive(:from_json).and_raise(error)
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expect(viewer.errors).to eq error.model.errors.messages.map { |messages| messages.join(': ') }
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end
end
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end
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context 'when YAML syntax is invalid' do
let(:data) do
<<~YAML
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dashboard: 'empty metrics'
panel_groups:
- group: 'Group Title'
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YAML
end
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describe '#valid?' do
it 'returns false' do
expect(PerformanceMonitoring::PrometheusDashboard).not_to receive(:from_json)
expect(viewer.valid?).to be false
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end
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end
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describe '#errors' do
it 'returns validation errors' do
expect(viewer.errors).to eq ["YAML syntax: (<unknown>): did not find expected key while parsing a block mapping at line 1 column 1"]
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end
end
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end
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context 'when YAML loader raises error' do
let(:data) do
<<~YAML
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large yaml file
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YAML
end
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before do
allow(::Gitlab::Config::Loader::Yaml).to(
receive(:new).and_raise(::Gitlab::Config::Loader::Yaml::DataTooLargeError, 'The parsed YAML is too big')
)
end
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it 'is invalid' do
expect(PerformanceMonitoring::PrometheusDashboard).not_to receive(:from_json)
expect(viewer.valid?).to be false
end
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it 'returns validation errors' do
expect(viewer.errors).to eq ["YAML syntax: The parsed YAML is too big"]
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end
end
end