54 lines
1.7 KiB
Ruby
54 lines
1.7 KiB
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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RSpec.describe Peek::Views::Memory, :request_store do
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subject! { described_class.new }
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before do
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stub_memory_instrumentation
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end
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context 'with process_action.action_controller notification' do
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it 'returns empty results when it has not yet fired' do
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expect(subject.results).to eq({})
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end
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it 'returns memory instrumentation data when it has fired' do
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publish_notification
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expect(subject.results[:calls]).to eq('2 MB')
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expect(subject.results[:details]).to all(have_key(:item_header))
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expect(subject.results[:details]).to all(have_key(:item_content))
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expect(subject.results[:summary]).to include('Objects allocated' => '200 k')
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expect(subject.results[:summary]).to include('Allocator calls' => '500')
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expect(subject.results[:summary]).to include('Large allocations' => '1 KB')
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end
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end
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def stub_memory_instrumentation
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start_memory = {
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total_malloc_bytes: 1,
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total_mallocs: 2,
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total_allocated_objects: 3
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}
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allow(Gitlab::Memory::Instrumentation).to receive(:start_thread_memory_allocations).and_return(start_memory)
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allow(Gitlab::Memory::Instrumentation).to receive(:measure_thread_memory_allocations).with(start_memory).and_return({
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mem_total_bytes: 2_097_152,
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mem_bytes: 1024,
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mem_mallocs: 500,
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mem_objects: 200_000
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})
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Gitlab::InstrumentationHelper.init_instrumentation_data
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end
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def publish_notification
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headers = double
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allow(headers).to receive(:env).and_return('action_dispatch.request_id': 'req-42')
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ActiveSupport::Notifications.publish(
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'process_action.action_controller', Time.current - 1.second, Time.current, 'id', headers: headers
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)
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end
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end
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