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require 'spec_helper'
require 'puppet/util/terminal'
describe Puppet::Util::Terminal do
describe '.width' do
before { allow(Puppet.features).to receive(:posix?).and_return(true) }
it 'should invoke `stty` and return the width' do
height, width = 100, 200
expect(subject).to receive(:`).with('stty size 2>/dev/null').and_return("#{height} #{width}\n")
expect(subject.width).to eq(width)
end
it 'should use `tput` if `stty` is unavailable' do
width = 200
expect(subject).to receive(:`).with('stty size 2>/dev/null').and_return("\n")
expect(subject).to receive(:`).with('tput cols 2>/dev/null').and_return("#{width}\n")
expect(subject.width).to eq(width)
end
it 'should default to 80 columns if `tput` and `stty` are unavailable' do
width = 80
expect(subject).to receive(:`).with('stty size 2>/dev/null').and_return("\n")
expect(subject).to receive(:`).with('tput cols 2>/dev/null').and_return("\n")
expect(subject.width).to eq(width)
end
it 'should default to 80 columns if `tput` or `stty` raise exceptions' do
width = 80
expect(subject).to receive(:`).with('stty size 2>/dev/null').and_raise()
allow(subject).to receive(:`).with('tput cols 2>/dev/null').and_return("#{width + 1000}\n")
expect(subject.width).to eq(width)
end
it 'should default to 80 columns if not in a POSIX environment' do
width = 80
allow(Puppet.features).to receive(:posix?).and_return(false)
expect(subject.width).to eq(width)
end
end
end
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