Rspec 当响应类型为'时，如何测试响应类型为'；在shoulda_matches 2.0中不推荐使用

respond\u with\u content\u type

matcher现在在gem中被弃用（版本>2.0，版本1.5.6中有很多丑陋的警告）

虽然Thoughtbot建议开发人员应该使用集成测试，但这并不总是在资源不足的项目上

所以问题是如何修复损坏的规格。。。或者如何替换它们

指：

---

最简单的方法是将出现的

respond\u替换为\u content\u type

：

# spec/controllers/users_controller_spec.rb
describe UsersController do
  before{ get :index, :format => :xlsx }
  it 'response should be excel format' do
    response.content_type.to_s.should eq Mime::Type.lookup_by_extension(:xlsx).to_s
  end
end

如果您需要一个合适的匹配器，则：

# spec/support/matchers/respond_with_content_type_matchers.rb
RSpec::Matchers.define :respond_with_content_type do |ability|
  match do |controller|
    expected.each do |format|  # for some reason formats are in array
      controller.response.content_type.to_s.should eq Mime::Type.lookup_by_extension(format.to_sym).to_s
    end
  end

  failure_message_for_should do |actual|
    "expected response with content type #{actual.to_sym}"
  end

  failure_message_for_should_not do |actual|
    "expected response not to be with content type #{actual.to_sym}"
  end
end

# spec/spec_helper.rb
...
#ensure support dir is loaded
Dir[Rails.root.join("spec/support/**/*.rb")].each {|f| require f}  
...

---

B.T.W.：如果你错过了matcher

应该将_分配给

，那么就有了一个现有的解决方案。Gem只是一个简单的shoulda matcher扩展模块

最简单的方法是用内容类型替换任何出现的

响应类型

：

# spec/controllers/users_controller_spec.rb
describe UsersController do
  before{ get :index, :format => :xlsx }
  it 'response should be excel format' do
    response.content_type.to_s.should eq Mime::Type.lookup_by_extension(:xlsx).to_s
  end
end

如果您需要一个合适的匹配器，则：

# spec/support/matchers/respond_with_content_type_matchers.rb
RSpec::Matchers.define :respond_with_content_type do |ability|
  match do |controller|
    expected.each do |format|  # for some reason formats are in array
      controller.response.content_type.to_s.should eq Mime::Type.lookup_by_extension(format.to_sym).to_s
    end
  end

  failure_message_for_should do |actual|
    "expected response with content type #{actual.to_sym}"
  end

  failure_message_for_should_not do |actual|
    "expected response not to be with content type #{actual.to_sym}"
  end
end

# spec/spec_helper.rb
...
#ensure support dir is loaded
Dir[Rails.root.join("spec/support/**/*.rb")].each {|f| require f}  
...

B.T.W.：如果你错过了matcher

应该将_分配给

，那么就有了一个现有的解决方案。Gem只是一个简单的shoulda matcher扩展模块