thoughtbot--shoulda-matchers/spec/shoulda/active_model/ensure_inclusion_of_matcher_spec.rb

require 'spec_helper'

describe Shoulda::Matchers::ActiveModel::EnsureInclusionOfMatcher do

  context "an attribute which must be included in a range" do
    before do
      @model = define_model(:example, :attr => :integer) do
        validates_inclusion_of :attr, :in => 2..5
      end.new
    end

    it "should accept ensuring the correct range" do
      @model.should ensure_inclusion_of(:attr).in_range(2..5)
    end

    it "should reject ensuring a lower minimum value" do
      @model.should_not ensure_inclusion_of(:attr).in_range(1..5)
    end

    it "should reject ensuring a higher minimum value" do
      @model.should_not ensure_inclusion_of(:attr).in_range(3..5)
    end

    it "should reject ensuring a lower maximum value" do
      @model.should_not ensure_inclusion_of(:attr).in_range(2..4)
    end

    it "should reject ensuring a higher maximum value" do
      @model.should_not ensure_inclusion_of(:attr).in_range(2..6)
    end

    it "should not override the default message with a blank" do
      @model.should ensure_inclusion_of(:attr).in_range(2..5).with_message(nil)
    end
  end

  context "an attribute with a custom ranged value validation" do
    before do
      @model = define_model(:example, :attr => :string) do
        validates_inclusion_of :attr, :in => 2..4, :message => 'not good'

      end.new
    end

    it "should accept ensuring the correct range" do
      @model.should ensure_inclusion_of(:attr).in_range(2..4).with_message(/not good/)
    end
  end

  context "an attribute with custom range validations" do
    before do
      define_model :example, :attr => :integer do
        validate :custom_validation
        def custom_validation
          if attr < 2
            errors.add(:attr, 'too low')
          elsif attr > 5
            errors.add(:attr, 'too high')
          end
        end
      end
      @model = Example.new
    end

    it "should accept ensuring the correct range and messages" do
      @model.should ensure_inclusion_of(:attr).in_range(2..5).with_low_message(/low/).with_high_message(/high/)
    end

  end

end