102 lines
2.6 KiB
Ruby
102 lines
2.6 KiB
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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describe Gitlab::Metrics::System do
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if File.exist?('/proc')
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describe '.memory_usage' do
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it "returns the process' memory usage in bytes" do
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expect(described_class.memory_usage).to be > 0
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end
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end
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describe '.file_descriptor_count' do
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it 'returns the amount of open file descriptors' do
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expect(described_class.file_descriptor_count).to be > 0
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end
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end
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describe '.max_open_file_descriptors' do
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it 'returns the max allowed open file descriptors' do
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expect(described_class.max_open_file_descriptors).to be > 0
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end
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end
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else
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describe '.memory_usage' do
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it 'returns 0.0' do
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expect(described_class.memory_usage).to eq(0.0)
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end
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end
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describe '.file_descriptor_count' do
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it 'returns 0' do
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expect(described_class.file_descriptor_count).to eq(0)
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end
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end
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describe '.max_open_file_descriptors' do
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it 'returns 0' do
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expect(described_class.max_open_file_descriptors).to eq(0)
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end
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end
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end
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describe '.cpu_time' do
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it 'returns a Float' do
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expect(described_class.cpu_time).to be_an(Float)
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end
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end
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describe '.real_time' do
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it 'returns a Float' do
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expect(described_class.real_time).to be_an(Float)
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end
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end
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describe '.monotonic_time' do
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it 'returns a Float' do
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expect(described_class.monotonic_time).to be_an(Float)
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end
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end
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describe '.thread_cpu_time' do
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it 'returns cpu_time on supported platform' do
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stub_const("Process::CLOCK_THREAD_CPUTIME_ID", 16)
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expect(Process).to receive(:clock_gettime)
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.with(16, kind_of(Symbol)) { 0.111222333 }
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expect(described_class.thread_cpu_time).to eq(0.111222333)
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end
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it 'returns nil on unsupported platform' do
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hide_const("Process::CLOCK_THREAD_CPUTIME_ID")
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expect(described_class.thread_cpu_time).to be_nil
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end
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end
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describe '.thread_cpu_duration' do
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let(:start_time) { described_class.thread_cpu_time }
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it 'returns difference between start and current time' do
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stub_const("Process::CLOCK_THREAD_CPUTIME_ID", 16)
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expect(Process).to receive(:clock_gettime)
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.with(16, kind_of(Symbol))
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.and_return(
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0.111222333,
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0.222333833
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)
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expect(described_class.thread_cpu_duration(start_time)).to eq(0.1111115)
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end
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it 'returns nil on unsupported platform' do
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hide_const("Process::CLOCK_THREAD_CPUTIME_ID")
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expect(described_class.thread_cpu_duration(start_time)).to be_nil
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end
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end
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end
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