136 lines
3.7 KiB
Ruby
136 lines
3.7 KiB
Ruby
# frozen_string_literal: true
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require_relative '../../../lib/gitlab/process_management'
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RSpec.describe Gitlab::ProcessManagement do
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describe '.trap_signals' do
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it 'traps the given signals' do
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expect(described_class).to receive(:trap).ordered.with(:INT)
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expect(described_class).to receive(:trap).ordered.with(:HUP)
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described_class.trap_signals(%i[INT HUP])
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end
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end
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describe '.modify_signals' do
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it 'traps the given signals with the given command' do
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expect(described_class).to receive(:trap).ordered.with(:INT, 'DEFAULT')
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expect(described_class).to receive(:trap).ordered.with(:HUP, 'DEFAULT')
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described_class.modify_signals(%i[INT HUP], 'DEFAULT')
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end
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end
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describe '.signal_processes' do
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it 'sends a signal to every given process' do
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expect(described_class).to receive(:signal).with(1, :INT)
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described_class.signal_processes([1], :INT)
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end
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end
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describe '.signal' do
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it 'sends a signal to the given process' do
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allow(Process).to receive(:kill).with(:INT, 4)
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expect(described_class.signal(4, :INT)).to eq(true)
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end
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it 'returns false when the process does not exist' do
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allow(Process).to receive(:kill).with(:INT, 4).and_raise(Errno::ESRCH)
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expect(described_class.signal(4, :INT)).to eq(false)
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end
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end
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# In the X_alive? checks, we check negative PIDs sometimes as a simple way
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# to be sure the pids are definitely for non-existent processes.
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# Note that -1 is special, and sends the signal to every process we have permission
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# for, so we use -2, -3 etc
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describe '.all_alive?' do
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it 'returns true if all processes are alive' do
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processes = [Process.pid]
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expect(described_class.all_alive?(processes)).to eq(true)
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end
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it 'returns false when a thread was not alive' do
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processes = [-2]
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expect(described_class.all_alive?(processes)).to eq(false)
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end
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end
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describe '.process_alive?' do
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it 'returns true if the process is alive' do
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process = Process.pid
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expect(described_class.process_alive?(process)).to eq(true)
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end
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it 'returns false when a thread was not alive' do
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process = -2
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expect(described_class.process_alive?(process)).to eq(false)
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end
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it 'returns false when no pid is given' do
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process = nil
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expect(described_class.process_alive?(process)).to eq(false)
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end
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end
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describe '.process_died?' do
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it 'returns false if the process is alive' do
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process = Process.pid
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expect(described_class.process_died?(process)).to eq(false)
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end
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it 'returns true when a thread was not alive' do
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process = -2
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expect(described_class.process_died?(process)).to eq(true)
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end
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it 'returns true when no pid is given' do
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process = nil
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expect(described_class.process_died?(process)).to eq(true)
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end
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end
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describe '.pids_alive' do
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it 'returns the pids that are alive, from a given array' do
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pids = [Process.pid, -2]
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expect(described_class.pids_alive(pids)).to match_array([Process.pid])
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end
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end
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describe '.any_alive?' do
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it 'returns true if at least one process is alive' do
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processes = [Process.pid, -2]
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expect(described_class.any_alive?(processes)).to eq(true)
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end
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it 'returns false when all threads are dead' do
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processes = [-2, -3]
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expect(described_class.any_alive?(processes)).to eq(false)
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end
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end
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describe '.write_pid' do
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it 'writes the PID of the current process to the given file' do
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handle = double(:handle)
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allow(File).to receive(:open).with('/dev/null', 'w').and_yield(handle)
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expect(handle).to receive(:write).with(Process.pid.to_s)
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described_class.write_pid('/dev/null')
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end
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end
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end
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