# encoding: utf-8

require 'spec_helper'

describe Rubocop::Cop::Style::ClassMethods do
  subject(:cop) { described_class.new }

  it 'registers an offense for methods using a class name' do
    inspect_source(cop,
                   ['class Test',
                    '  def Test.some_method',
                    '    do_something',
                    '  end',
                    'end'])
    expect(cop.offenses.size).to eq(1)
    expect(cop.messages)
      .to eq(['Use `self.some_method` instead of `Test.some_method`.'])
    expect(cop.highlights).to eq(['Test'])
  end

  it 'registers an offense for methods using a module name' do
    inspect_source(cop,
                   ['module Test',
                    '  def Test.some_method',
                    '    do_something',
                    '  end',
                    'end'])
    expect(cop.offenses.size).to eq(1)
    expect(cop.messages)
      .to eq(['Use `self.some_method` instead of `Test.some_method`.'])
    expect(cop.highlights).to eq(['Test'])
  end

  it 'does not register an offense for methods using self' do
    inspect_source(cop,
                   ['module Test',
                    '  def self.some_method',
                    '    do_something',
                    '  end',
                    'end'])
    expect(cop.offenses).to be_empty
  end

  it 'does not register an offense outside class/module bodies' do
    inspect_source(cop,
                   ['def Test.some_method',
                    '  do_something',
                    'end'])
    expect(cop.offenses).to be_empty
  end

  it 'autocorrects class name to self' do
    src = ['class Test',
           '  def Test.some_method',
           '    do_something',
           '  end',
           'end']

    correct_source = ['class Test',
                      '  def self.some_method',
                      '    do_something',
                      '  end',
                      'end'].join("\n")

    new_source = autocorrect_source(cop, src)
    expect(new_source).to eq(correct_source)
  end
end