我有一个ReturnItem类
眼镜：
require 'spec_helper'
describe ReturnItem do
#is this enough?
it { should respond_to :chosen }
it { should respond_to :chosen= }
end
类：
class ReturnItem attr_accessor :chosen end
这似乎有点乏味,因为attr_accessor在几乎每一个类使用.在rspec中有没有快捷方式来测试getter和setter的默认功能？或者我必须单独和手动地对每个属性进行检测和设置过程？
解决方法
我为此创建了一个自定义rspec匹配器：
规格/自定义/匹配器/ should_have_attr_accessor.rb
RSpec::Matchers.define :have_attr_accessor do |field|
match do |object_instance|
object_instance.respond_to?(field) &&
object_instance.respond_to?("#{field}=")
end
failure_message_for_should do |object_instance|
"expected attr_accessor for #{field} on #{object_instance}"
end
failure_message_for_should_not do |object_instance|
"expected attr_accessor for #{field} not to be defined on #{object_instance}"
end
description do
"checks to see if there is an attr accessor on the supplied object"
end
end
然后在我的规格,我使用它像这样：
subject { described_class.new }
it { should have_attr_accessor(:foo) }