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require 'spec_helper'
describe 'Gitlab::Popen', lib: true, no_db: true do
let(:path) { Rails.root.join('tmp').to_s }
before do
@klass = Class.new(Object)
@klass.send(:include, Gitlab::Popen)
end
context 'zero status' do
before do
@output, @status = @klass.new.popen(%w(ls), path)
end
it { expect(@status).to be_zero }
it { expect(@output).to include('cache') }
end
context 'non-zero status' do
before do
@output, @status = @klass.new.popen(%w(cat NOTHING), path)
end
it { expect(@status).to eq(1) }
it { expect(@output).to include('No such file or directory') }
end
context 'unsafe string command' do
it 'raises an error when it gets called with a string argument' do
expect { @klass.new.popen('ls', path) }.to raise_error(RuntimeError)
end
end
context 'with custom options' do
let(:vars) { { 'foobar' => 123, 'PWD' => path } }
let(:options) { { chdir: path } }
it 'calls popen3 with the provided environment variables' do
expect(Open3).to receive(:popen3).with(vars, 'ls', options)
@output, @status = @klass.new.popen(%w(ls), path, { 'foobar' => 123 })
end
end
context 'without a directory argument' do
before do
@output, @status = @klass.new.popen(%w(ls))
end
it { expect(@status).to be_zero }
it { expect(@output).to include('spec') }
end
context 'use stdin' do
before do
@output, @status = @klass.new.popen(%w[cat]) { |stdin| stdin.write 'hello' }
end
it { expect(@status).to be_zero }
it { expect(@output).to eq('hello') }
end
end