action_controller_flash_before_render_spec.rb

# frozen_string_literal: true

RSpec.describe RuboCop::Cop::Rails::ActionControllerFlashBeforeRender, :config do
  it 'registers an offense when using `flash` before `render`' do
    expect_offense(<<~RUBY)
      flash[:alert] = "msg"
      ^^^^^ Use `flash.now` before `render`.
      render :index
    RUBY

    expect_correction(<<~RUBY)
      flash.now[:alert] = "msg"
      render :index
    RUBY
  end

  it 'does not register an offense when using `flash` only' do
    expect_no_offenses(<<~RUBY)
      flash[:alert] = "msg"
    RUBY
  end

  it 'does not register an offense when using `flash.now` before `render`' do
    expect_no_offenses(<<~RUBY)
      flash.now[:alert] = "msg"
      render :index
    RUBY
  end

  it 'does not register an offense when using `flash` before `redirect_to`' do
    expect_no_offenses(<<~RUBY)
      flash[:alert] = "msg"
      redirect_to "https://www.rubygems.org"
    RUBY
  end
end