Contents

# -*- encoding: utf-8 -*-

require 'spec_helper'

describe TTY::Terminal::Pager, '#page' do
  let(:text)   { "a\n" }
  let(:shell)  { TTY.shell }
  let(:system) { TTY::System }
  let(:pager)  { double(:pager, :page => nil) }
  let(:basic_pager)  { TTY::Terminal::BasicPager }
  let(:system_pager) { TTY::Terminal::SystemPager }

  subject { described_class }

  before { shell.stub(:tty?).and_return(true) }

  context 'when not tty' do
    before { shell.stub(:tty?).and_return(false) }

    it "doesn't page" do
      expect(subject.page(text)).to eql(nil)
    end
  end

  context 'when not unix' do
    before  {
      system.stub(:unix?).and_return(false)
    }

    it 'pages with simple pager' do
      basic_pager.should_receive(:new).with(text).and_return(pager)
      subject.page(text)
    end
  end

  context 'when unix and available' do
    before  {
      system.stub(:unix?).and_return(true)
      subject.stub(:available?).and_return(true)
    }

    it 'pages with system pager' do
      system_pager.should_receive(:new).with(text).and_return(pager)
      subject.page(text)
    end
  end
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
tty-0.0.11	spec/tty/terminal/pager/page_spec.rb
tty-0.0.10	spec/tty/terminal/pager/page_spec.rb