# encoding: utf-8

require 'spec_helper'

describe RuboCop::Cop::Style::UnneededCapitalW do
  subject(:cop) { described_class.new }

  it 'registers no offense for normal arrays of strings' do
    inspect_source(cop,
                   ['["one", "two", "three"]'])
    expect(cop.offenses).to be_empty
  end

  it 'registers no offense for normal arrays of strings with interpolation' do
    inspect_source(cop,
                   ['["one", "two", "th#{ ?r }ee"]'])
    expect(cop.offenses).to be_empty
  end

  it 'registers an offense for misused %W' do
    inspect_source(cop,
                   ['%W(cat dog)'])
    expect(cop.offenses.size).to eq(1)
  end

  it 'registers no offense for %W with interpolation' do
    inspect_source(cop,
                   ['%W(c#{ ?a }t dog)'])
    expect(cop.offenses).to be_empty
  end

  it 'registers no offense for %W with special characters' do
    source = ['def dangerous_characters',
              '  %W(\000) +',
              '  %W(\001) +',
              '  %W(\027) +',
              '  %W(\002) +',
              '  %W(\003) +',
              '  %W(\004) +',
              '  %W(\005) +',
              '  %W(\006) +',
              '  %W(\007) +',
              '  %W(\00) +',
              '  %W(\a)',
              'end']
    inspect_source(cop, source)
    expect(cop.offenses).to be_empty
  end

  it 'registers no offense for %w without interpolation' do
    inspect_source(cop,
                   ['%w(cat dog)'])
    expect(cop.offenses).to be_empty
  end

  it 'registers no offense for %w with interpolation-like syntax' do
    inspect_source(cop,
                   ['%w(c#{ ?a }t dog)'])
    expect(cop.offenses).to be_empty
  end

  it 'registers no offense for arrays with character constants' do
    inspect_source(cop,
                   ['["one", ?\n]'])
    expect(cop.offenses).to be_empty
  end

  it 'does not register an offense for array of non-words' do
    inspect_source(cop,
                   ['["one space", "two", "three"]'])
    expect(cop.offenses).to be_empty
  end

  it 'does not register an offense for array containing non-string' do
    inspect_source(cop,
                   ['["one", "two", 3]'])
    expect(cop.offenses).to be_empty
  end

  it 'does not register an offense for array with one element' do
    inspect_source(cop,
                   ['["three"]'])
    expect(cop.offenses).to be_empty
  end

  it 'does not register an offense for array with empty strings' do
    inspect_source(cop,
                   ['["", "two", "three"]'])
    expect(cop.offenses).to be_empty
  end

  it 'auto-corrects an array of words' do
    new_source = autocorrect_source(cop, '%W(one two three)')
    expect(new_source).to eq('%w(one two three)')
  end
end