Contents

require_relative "test_helper"

class GuineaPigTest < MiniTest::Unit::TestCase
  def setup
    GuineaPig::ABTest.destroy_all
    User.destroy_all

    GuineaPig::Experiments.stubs(:experiments_path).returns("#{FIXTURES}/ab_experiments.yml")
    @user = User.create!
  end

  def test_get
    ab_test = GuineaPig.get(:experiment_monkey, @user)
    ab_test.reload

    assert_equal("experiment_monkey", ab_test.experiment)
    assert_includes(["alternative_monkey_1", "alternative_monkey_2"], ab_test.alternative)
    assert_equal(@user, ab_test.guinea_pig)
    assert_equal(0, ab_test.seen_count)
    assert_equal(0, ab_test.conversion_count)
  end

  def test_get_multiple_times_for_the_same_guinea_pig_should_return_the_same_alternative
    first_ab_test =
      assert_difference "GuineaPig::ABTest.count", 1 do
        GuineaPig.get(:experiment_monkey, @user)
      end

    second_ab_test =
      assert_difference "GuineaPig::ABTest.count", 0 do
        GuineaPig.get(:experiment_monkey, @user)
      end

    assert_equal(first_ab_test, second_ab_test)
  end

  def test_alternative
    alternatives = 10.times.map { GuineaPig.alternative(:experiment_monkey, User.create!) }.uniq.sort
    assert_equal(["alternative_monkey_1", "alternative_monkey_2"], alternatives)
  end

  def test_update_seen_counter_in_alternative
    GuineaPig.alternative(:experiment_monkey, @user)
    assert_equal(1, GuineaPig.get(:experiment_monkey, @user).seen_count)

    GuineaPig.alternative(:experiment_monkey, @user)
    assert_equal(2, GuineaPig.get(:experiment_monkey, @user).seen_count)
  end

  def test_conversion
    ab_test = GuineaPig::ABTest.create!(:experiment => :experiment_monkey, :guinea_pig => @user)

    assert_equal(0, ab_test.conversion_count)

    GuineaPig.conversion(:experiment_monkey, @user)
    ab_test.reload
    assert_equal(1, ab_test.conversion_count)

    GuineaPig.conversion(:experiment_monkey, @user)
    ab_test.reload
    assert_equal(2, ab_test.conversion_count)
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
guinea_pig-0.1.3	test/guinea_pig_test.rb