debian-mirror-gitlab/spec/lib/gitlab/prometheus/additional_metrics_parser_spec.rb

Ignoring revisions in .git-blame-ignore-revs. Click here to bypass and see the normal blame view.

249 lines
6.7 KiB
Ruby
Raw Normal View History

2019-12-04 20:38:33 +05:30
# frozen_string_literal: true
2017-09-10 17:25:29 +05:30
require 'spec_helper'
2020-07-28 23:09:34 +05:30
RSpec.describe Gitlab::Prometheus::AdditionalMetricsParser do
2017-09-10 17:25:29 +05:30
include Prometheus::MetricBuilders
let(:parser_error_class) { Gitlab::Prometheus::ParsingError }
describe '#load_groups_from_yaml' do
2018-11-20 20:47:30 +05:30
subject { described_class.load_groups_from_yaml('dummy.yaml') }
2017-09-10 17:25:29 +05:30
describe 'parsing sample yaml' do
let(:sample_yaml) do
<<-EOF.strip_heredoc
- group: group_a
priority: 1
metrics:
- title: "title"
required_metrics: [ metric_a, metric_b ]
weight: 1
queries: [{ query_range: 'query_range_a', label: label, unit: unit }]
- title: "title"
required_metrics: [metric_a]
weight: 1
queries: [{ query_range: 'query_range_empty' }]
- group: group_b
priority: 1
2018-03-17 18:26:18 +05:30
metrics:
2017-09-10 17:25:29 +05:30
- title: title
required_metrics: ['metric_a']
weight: 1
queries: [{query_range: query_range_a}]
EOF
end
before do
2021-06-08 01:23:25 +05:30
allow(described_class).to receive(:load_yaml_file) { YAML.safe_load(sample_yaml) }
2017-09-10 17:25:29 +05:30
end
it 'parses to two metric groups with 2 and 1 metric respectively' do
expect(subject.count).to eq(2)
expect(subject[0].metrics.count).to eq(2)
expect(subject[1].metrics.count).to eq(1)
end
it 'provide group data' do
expect(subject[0]).to have_attributes(name: 'group_a', priority: 1)
expect(subject[1]).to have_attributes(name: 'group_b', priority: 1)
end
it 'provides metrics data' do
metrics = subject.flat_map(&:metrics)
expect(metrics.count).to eq(3)
expect(metrics[0]).to have_attributes(title: 'title', required_metrics: %w(metric_a metric_b), weight: 1)
expect(metrics[1]).to have_attributes(title: 'title', required_metrics: %w(metric_a), weight: 1)
expect(metrics[2]).to have_attributes(title: 'title', required_metrics: %w{metric_a}, weight: 1)
end
it 'provides query data' do
queries = subject.flat_map(&:metrics).flat_map(&:queries)
expect(queries.count).to eq(3)
expect(queries[0]).to eq(query_range: 'query_range_a', label: 'label', unit: 'unit')
expect(queries[1]).to eq(query_range: 'query_range_empty')
expect(queries[2]).to eq(query_range: 'query_range_a')
end
end
shared_examples 'required field' do |field_name|
context "when #{field_name} is nil" do
before do
2021-06-08 01:23:25 +05:30
allow(described_class).to receive(:load_yaml_file) { YAML.safe_load(field_missing) }
2017-09-10 17:25:29 +05:30
end
it 'throws parsing error' do
expect { subject }.to raise_error(parser_error_class, /#{field_name} can't be blank/i)
end
end
context "when #{field_name} are not specified" do
before do
2021-06-08 01:23:25 +05:30
allow(described_class).to receive(:load_yaml_file) { YAML.safe_load(field_nil) }
2017-09-10 17:25:29 +05:30
end
it 'throws parsing error' do
expect { subject }.to raise_error(parser_error_class, /#{field_name} can't be blank/i)
end
end
end
describe 'group required fields' do
it_behaves_like 'required field', 'metrics' do
let(:field_nil) do
<<-EOF.strip_heredoc
- group: group_a
priority: 1
metrics:
EOF
end
let(:field_missing) do
<<-EOF.strip_heredoc
- group: group_a
priority: 1
EOF
end
end
it_behaves_like 'required field', 'name' do
let(:field_nil) do
<<-EOF.strip_heredoc
- group:
priority: 1
metrics: []
EOF
end
let(:field_missing) do
<<-EOF.strip_heredoc
- priority: 1
metrics: []
EOF
end
end
it_behaves_like 'required field', 'priority' do
let(:field_nil) do
<<-EOF.strip_heredoc
- group: group_a
priority:
metrics: []
EOF
end
let(:field_missing) do
<<-EOF.strip_heredoc
- group: group_a
metrics: []
EOF
end
end
end
describe 'metrics fields parsing' do
it_behaves_like 'required field', 'title' do
let(:field_nil) do
<<-EOF.strip_heredoc
- group: group_a
priority: 1
metrics:
2018-03-17 18:26:18 +05:30
- title:
2017-09-10 17:25:29 +05:30
required_metrics: []
weight: 1
queries: []
EOF
end
let(:field_missing) do
<<-EOF.strip_heredoc
- group: group_a
priority: 1
metrics:
- required_metrics: []
weight: 1
queries: []
EOF
end
end
it_behaves_like 'required field', 'required metrics' do
let(:field_nil) do
<<-EOF.strip_heredoc
- group: group_a
priority: 1
metrics:
- title: title
required_metrics:
weight: 1
queries: []
EOF
end
let(:field_missing) do
<<-EOF.strip_heredoc
- group: group_a
priority: 1
metrics:
- title: title
weight: 1
queries: []
EOF
end
end
it_behaves_like 'required field', 'weight' do
let(:field_nil) do
<<-EOF.strip_heredoc
- group: group_a
priority: 1
metrics:
- title: title
required_metrics: []
weight:
queries: []
EOF
end
let(:field_missing) do
<<-EOF.strip_heredoc
- group: group_a
priority: 1
metrics:
- title: title
required_metrics: []
queries: []
EOF
end
end
it_behaves_like 'required field', :queries do
let(:field_nil) do
<<-EOF.strip_heredoc
- group: group_a
priority: 1
metrics:
- title: title
required_metrics: []
weight: 1
queries:
EOF
end
let(:field_missing) do
<<-EOF.strip_heredoc
- group: group_a
priority: 1
metrics:
- title: title
required_metrics: []
weight: 1
EOF
end
end
end
end
end