98 lines
2.6 KiB
Ruby
98 lines
2.6 KiB
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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RSpec.describe Gitlab::Popen do
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let(:path) { Rails.root.join('tmp').to_s }
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before do
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@klass = Class.new(Object)
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@klass.send(:include, described_class)
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end
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describe '.popen_with_detail' do
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subject { @klass.new.popen_with_detail(cmd) }
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let(:cmd) { %W[#{Gem.ruby} -e $stdout.puts(1);$stderr.puts(2);exit(3)] }
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it { expect(subject.cmd).to eq(cmd) }
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it { expect(subject.stdout).to eq("1\n") }
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it { expect(subject.stderr).to eq("2\n") }
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it { expect(subject.status.exitstatus).to eq(3) }
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it { expect(subject.duration).to be_kind_of(Numeric) }
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end
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context 'zero status' do
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before do
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@output, @status = @klass.new.popen(%w(ls), path)
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end
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it { expect(@status).to be_zero }
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it { expect(@output).to include('tests') }
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end
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context 'non-zero status' do
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before do
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@output, @status = @klass.new.popen(%w(cat NOTHING), path)
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end
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it { expect(@status).to eq(1) }
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it { expect(@output).to include('No such file or directory') }
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end
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context 'unsafe string command' do
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it 'raises an error when it gets called with a string argument' do
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expect { @klass.new.popen('ls', path) }.to raise_error(RuntimeError)
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end
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end
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context 'with custom options' do
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let(:vars) { { 'foobar' => 123, 'PWD' => path } }
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let(:options) { { chdir: path } }
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it 'calls popen3 with the provided environment variables' do
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expect(Open3).to receive(:popen3).with(vars, 'ls', options)
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@output, @status = @klass.new.popen(%w(ls), path, { 'foobar' => 123 })
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end
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end
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context 'with a process that writes a lot of data to stderr' do
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let(:test_string) { 'The quick brown fox jumped over the lazy dog' }
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# The pipe buffer is typically 64K. This string is about 440K.
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let(:spew_command) { ['bash', '-c', "for i in {1..10000}; do echo '#{test_string}' 1>&2; done"] }
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it 'returns zero' do
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output, status = @klass.new.popen(spew_command, path)
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expect(output).to include(test_string)
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expect(status).to eq(0)
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end
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end
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context 'without a directory argument' do
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before do
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@output, @status = @klass.new.popen(%w(ls))
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end
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it { expect(@status).to be_zero }
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it { expect(@output).to include('spec') }
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end
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context 'use stdin' do
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before do
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@output, @status = @klass.new.popen(%w[cat]) { |stdin| stdin.write 'hello' }
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end
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it { expect(@status).to be_zero }
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it { expect(@output).to eq('hello') }
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end
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context 'when binary is absent' do
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it 'raises error' do
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expect do
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@klass.new.popen(%w[foobar])
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end.to raise_error
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end
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end
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end
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