# frozen_string_literal: true

require 'spec_helper'

describe 'lograge', type: :request do
  let(:headers) { { 'X-Request-ID' => 'new-correlation-id' } }

  context 'for API requests' do
    subject { get("/api/v4/endpoint", params: {}, headers: headers) }

    it 'logs to api_json log' do
      # we assert receiving parameters by grape logger
      expect_any_instance_of(Gitlab::GrapeLogging::Formatters::LogrageWithTimestamp).to receive(:call)
        .with(anything, anything, anything, a_hash_including("correlation_id" => "new-correlation-id"))
        .and_call_original

      subject
    end
  end

  context 'for Controller requests' do
    subject { get("/", params: {}, headers: headers) }

    it 'logs to production_json log' do
      # formatter receives a hash with correlation id
      expect(Lograge.formatter).to receive(:call)
        .with(a_hash_including("correlation_id" => "new-correlation-id"))
        .and_call_original

      # a log file receives a line with correlation id
      expect(Lograge.logger).to receive(:send)
        .with(anything, include('"correlation_id":"new-correlation-id"'))
        .and_call_original

      subject
    end

    it 'logs cpu_s on supported platform' do
      allow(Gitlab::Metrics::System).to receive(:thread_cpu_time)
        .and_return(
          0.111222333,
          0.222333833
        )

      expect(Lograge.formatter).to receive(:call)
        .with(a_hash_including(cpu_s: 0.1111115))
        .and_call_original

      expect(Lograge.logger).to receive(:send)
        .with(anything, include('"cpu_s":0.1111115'))
        .and_call_original

      subject
    end

    it 'does not log cpu_s on unsupported platform' do
      allow(Gitlab::Metrics::System).to receive(:thread_cpu_time)
        .and_return(nil)

      expect(Lograge.formatter).to receive(:call)
        .with(hash_not_including(:cpu_s))
        .and_call_original

      expect(Lograge.logger).not_to receive(:send)
        .with(anything, include('"cpu_s":'))
        .and_call_original

      subject
    end
  end
end