require 'test_helper'

class OperationTest < ActiveSupport::TestCase

  context "A valid operation" do

    setup do
      @operation = Factory(:operation_one)
    end

    should_require_attributes :description, :value

    should "return its value" do
      assert_equal 5000, @operation.value
    end

    should "return its category" do
      assert_equal 'Proventos', @operation.category
    end

    context "with value greater than zero" do
      should "be income" do
        operation = Factory(:operation_one)
        assert operation.income?
      end
    end

    context "with value less than zero" do
      should "be expense" do
        operation = Factory(:operation_two)
        assert operation.expense?
      end
    end

  end

end