require 'spec_helper'

describe RuCaptcha do
  class Simple < ActionController::Base
    def session
      @session ||= {}
    end

    def params
      @params ||= {}
    end
  end

  let(:simple) { Simple.new }

  describe '.generate_rucaptcha' do
    it 'should work' do
      expect(simple).to receive(:random_rucaptcha_chars).and_return('abcd')
      expect(simple.generate_rucaptcha).not_to be_nil
      expect(simple.session[:_rucaptcha]).to eq('abcd')
    end
  end

  describe '.random_rucaptcha_chars' do
    it 'should len equal config.len' do
      expect(simple.random_rucaptcha_chars.length).to eq(RuCaptcha.config.len)
    end

    it 'should return 0-9 and lower str' do
      expect(simple.random_rucaptcha_chars).to match(/[a-z0-9]/)
    end

    it 'should not include [0ol1]' do
      10000.times do
        expect(simple.random_rucaptcha_chars).not_to match(/[0ol1]/i)
      end
    end
  end

  describe '.verify_rucaptcha?' do
    context 'Correct chars in params' do
      it 'should work' do
        simple.session[:_rucaptcha] = 'abcd'
        simple.params[:_rucaptcha] = 'Abcd'
        expect(simple.verify_rucaptcha?).to eq(true)
        simple.params[:_rucaptcha] = 'AbcD'
        expect(simple.verify_rucaptcha?).to eq(true)
      end
    end

    describe 'Incorrect chars' do
      it "should work" do
        simple.session[:_rucaptcha] = 'abcd'
        simple.params[:_rucaptcha] = 'd123'
        expect(simple.verify_rucaptcha?).to eq(false)
      end
    end
  end
end