RSpec 和 ActiveModel

Question

我有一个模块，它包含 activemodel，我想使用 rspec 对其进行测试。

这是我目前的设置：

lib/
 |__ my_module/
 |    |__ base.rb 
 |__ my_module.rb
spec/
 |__ my_module_spec.rb
 |__ spec_helper.rb
 |__ support/
      |__ shared_examples/
           |__ active_model.rb

在“my_class.rb”内：

require "active_model"
require "my_module/base"

在“base.rb”内：

module MyModule
  class Base
    extend ActiveModel::Naming

    include ActiveModel::Conversion
    include ActiveModel::Validations
  end
end

在“my_module_spec.rb”内：

require 'spec_helper'

describe MyModule do
  describe MyModule::Base do
    it_behaves_like "ActiveModel"
  end
end

在“spec_helper.rb”内：

$LOAD_PATH.unshift(File.join(File.dirname(__FILE__), '..', 'lib'))
$LOAD_PATH.unshift(File.dirname(__FILE__))
require 'rspec'
require 'my_module'

# Requires supporting files with custom matchers and macros, etc,
# in ./support/ and its subdirectories.
Dir["#{File.dirname(__FILE__)}/support/**/*.rb"].each {|f| require f}

RSpec.configure do |config|
end

在“active_model.rb”内：

# taken from http://pivotallabs.com/users/jdean/blog/articles/1706-form-backing-objects-for-fun-and-profit

shared_examples_for "ActiveModel" do
  require 'test/unit/assertions'
  require 'active_model/lint'
  include Test::Unit::Assertions
  include ActiveModel::Lint::Tests

  before do
    @model = subject
  end

  ActiveModel::Lint::Tests.public_instance_methods.map { |method| method.to_s }.grep(/^test/).each do |method|
    example(method.gsub('_', ' ')) { send method }
  end
end

我认为我的设置没问题，但是当我尝试运行 bundle exec rspec spec 时，我收到了以下错误：

Failures:

  1) MyModule MyModule::Base behaves like ActiveModel test to key
     Failure/Error: example(method.gsub('_', ' ')) { send method }

  2) MyModule MyModule::Base behaves like ActiveModel test to param
     Failure/Error: example(method.gsub('_', ' ')) { send method }

  3) MyModule MyModule::Base behaves like ActiveModel test to partial path
     Failure/Error: example(method.gsub('_', ' ')) { send method }

  4) MyModule MyModule::Base behaves like ActiveModel test valid?
     Failure/Error: example(method.gsub('_', ' ')) { send method }

  5) MyModule MyModule::Base behaves like ActiveModel test persisted?
     Failure/Error: example(method.gsub('_', ' ')) { send method }

  6) MyModule MyModule::Base behaves like ActiveModel test model naming
     Failure/Error: example(method.gsub('_', ' ')) { send method }

  7) MyModule MyModule::Base behaves like ActiveModel test errors aref
     Failure/Error: example(method.gsub('_', ' ')) { send method }

  8) MyModule MyModule::Base behaves like ActiveModel test errors full messages
     Failure/Error: example(method.gsub('_', ' ')) { send method }

我在这里做错了什么？如何正确测试 ActiveModel？

提前致谢

Answer 1

你试图做的太多了。因为您要测试 ActiveModel 库。您只需要测试您的对象是否包含此模块

require 'spec_helper'

describe MyModule do
  describe MyModule::Base do
    it { MyModule::Base.should include(ActiveModel::Conversion) }
    it { MyModule::Base.should include(ActiveModel::Validations) }
  end
end