Contents

require 'yaml'
require_relative '../test_helper'
require_relative '../../lib/lovely_rufus/text_wrapper'

module LovelyRufus
  describe TextWrapper do
    describe '.wrap' do
      it 'wraps the passed String to 72 characters by default' do
        short = 'all right: stop, collaborate and listen'
        long  = short + ' – Ice is back with a brand new invention'
        wrap  = <<-end.dedent
          all right: stop, collaborate and listen
          – Ice is back with a brand new invention
        end
        _(TextWrapper.wrap(short)).must_equal "#{short}\n"
        _(TextWrapper.wrap(long)).must_equal wrap
      end

      it 'wraps the passed String to the given number of characters' do
        input = 'something grabs a hold of me tightly; ' \
          'flow like a harpoon – daily and nightly'
        _(TextWrapper.wrap(input, width: 40)).must_equal <<-end.dedent
          something grabs a hold of me tightly;
          flow like a harpoon – daily and nightly
        end
        _(TextWrapper.wrap(input, width: 21)).must_equal <<-end.dedent
          something grabs
          a hold of me tightly;
          flow like a harpoon
          – daily and nightly
        end
      end

      it 'rewraps a String from zero' do
        broken = <<-end.dedent
          turn off
          the lights and I’ll glow
        end
        wrapped = TextWrapper.wrap(broken)
        _(wrapped).must_equal "turn off the lights and I’ll glow\n"
      end

      it 'supports all the example use-cases' do
        path = File.expand_path('text_wrapper_test.yml', __dir__)
        YAML.load_file(path).each do |spec|
          width = spec.fetch('width') { 72 }
          wrap  = "#{spec['output']}\n"
          _(TextWrapper.wrap(spec['input'], width: width)).must_equal wrap
        end
      end
    end
  end
end

Version data entries

2 entries across 2 versions & 1 rubygems

Version	Path
lovely_rufus-1.0.0	test/lovely_rufus/text_wrapper_test.rb
lovely_rufus-0.3.2	test/lovely_rufus/text_wrapper_test.rb