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# frozen_string_literal: true
require 'spec_helper'
describe Gitlab::Graphql::GenericTracing do
let(:graphql_duration_seconds_histogram) { double('Gitlab::Metrics::NullMetric') }
it 'updates graphql histogram with expected labels' do
query = 'query { users { id } }'
tracer = described_class.new
allow(tracer)
.to receive(:graphql_duration_seconds)
.and_return(graphql_duration_seconds_histogram)
expect_metric('graphql.lex', 'lex')
expect_metric('graphql.parse', 'parse')
expect_metric('graphql.validate', 'validate')
expect_metric('graphql.analyze', 'analyze_multiplex')
expect_metric('graphql.execute', 'execute_query_lazy')
expect_metric('graphql.execute', 'execute_multiplex')
GitlabSchema.execute(query, context: { tracers: [tracer] })
end
context "when labkit tracing is enabled" do
before do
expect(Labkit::Tracing).to receive(:enabled?).and_return(true)
end
it 'yields with labkit tracing' do
expected_tags = {
'component' => 'web',
'span.kind' => 'server',
'platform_key' => 'pkey',
'key' => 'key'
}
expect(Labkit::Tracing)
.to receive(:with_tracing)
.with(operation_name: "pkey.key", tags: expected_tags)
.and_yield
expect { |b| described_class.new.platform_trace('pkey', 'key', nil, &b) }.to yield_control
end
end
context "when labkit tracing is disabled" do
before do
expect(Labkit::Tracing).to receive(:enabled?).and_return(false)
end
it 'yields without measurement' do
expect(Labkit::Tracing).not_to receive(:with_tracing)
expect { |b| described_class.new.platform_trace('pkey', 'key', nil, &b) }.to yield_control
end
end
private
def expect_metric(platform_key, key)
expect(graphql_duration_seconds_histogram)
.to receive(:observe)
.with({ platform_key: platform_key, key: key }, be > 0.0)
end
end
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