# encoding: utf-8

require 'spec_helper'

describe RuboCop::Cop::Style::SpaceBeforeBlockBraces do
  subject(:cop) { described_class.new(config) }
  let(:config) do
    merged = RuboCop::ConfigLoader
      .default_configuration['Style/SpaceBeforeBlockBraces'].merge(cop_config)
    RuboCop::Config.new('Style/Blocks' => { 'Enabled' => false },
                        'Style/SpaceBeforeBlockBraces' => merged)
  end
  let(:cop_config) { { 'EnforcedStyle' => 'space' } }

  context 'when EnforcedStyle is space' do
    it 'accepts braces surrounded by spaces' do
      inspect_source(cop, ['each { puts }'])
      expect(cop.messages).to be_empty
      expect(cop.highlights).to be_empty
    end

    it 'registers an offense for left brace without outer space' do
      inspect_source(cop, ['each{ puts }'])
      expect(cop.messages).to eq(['Space missing to the left of {.'])
      expect(cop.highlights).to eq(['{'])
      expect(cop.config_to_allow_offenses).to eq('EnforcedStyle' => 'no_space')
    end

    it 'registers an offense for opposite + correct style' do
      inspect_source(cop,
                     ['each{ puts }',
                      'each { puts }'])
      expect(cop.messages).to eq(['Space missing to the left of {.'])
      expect(cop.config_to_allow_offenses).to eq('Enabled' => false)
    end

    it 'auto-corrects missing space' do
      new_source = autocorrect_source(cop, 'each{}')
      expect(new_source).to eq('each {}')
    end
  end

  context 'when EnforcedStyle is no_space' do
    let(:cop_config) { { 'EnforcedStyle' => 'no_space' } }

    it 'registers an offense for braces surrounded by spaces' do
      inspect_source(cop, ['each { puts }'])
      expect(cop.messages).to eq(['Space detected to the left of {.'])
      expect(cop.highlights).to eq([' '])
      expect(cop.config_to_allow_offenses).to eq('EnforcedStyle' => 'space')
    end

    it 'registers an offense for correct + opposite style' do
      inspect_source(cop,
                     ['each{ puts }',
                      'each { puts }'])
      expect(cop.messages).to eq(['Space detected to the left of {.'])
      expect(cop.config_to_allow_offenses).to eq('Enabled' => false)
    end

    it 'auto-corrects unwanted space' do
      new_source = autocorrect_source(cop, 'each {}')
      expect(new_source).to eq('each{}')
    end

    it 'accepts left brace without outer space' do
      inspect_source(cop, ['each{ puts }'])
      expect(cop.messages).to be_empty
      expect(cop.highlights).to be_empty
    end
  end
end