ruby on rails -如何在功能测试中发布原始XML

Question

假设我有一个通过POST处理XML的REST服务:

class DepartmentsController < ApplicationController
  # POST /departments/1/employees.xml
  def create
    params[:employees].each do |e| # <employees type="array">
      @employee = Employee.new(e)
      @employee.save
    end
    respond_to do |format|
      format.any { head status }
    end
  end
end

它期望的XML类似于:

<?xml version="1.0" encoding="UTF-8"?>
<exmployees type="array">
  <employee>
    ...
  </employe>
  <employee>
    ...
  </employe>
</employees>

该服务在与iPhone应用程序交互时按预期工作，但我无法在我的功能测试中让它工作(我是Rails新手)。

这就是我要做的:

  test "should create employees with client data" do
    xml_out = ""
    xml = Builder::XmlMarkup.new(:target => xml_out, :indent => 2)
    xml.instruct!
    xml.employees :type => "array" do
      xml.employee do
        # ...
      end
    end
    assert_difference('Employee.count') do
      @request.env['RAW_POST_BODY'] = xml_out
      post :create, :department_id => 234
    end
  end

我得到的错误是:

NoMethodError: You have a nil object when you didn't expect it!
You might have expected an instance of Array.

似乎'params'变量缺少post数据:

{"department_id"=>234, "controller"=>"employees", "action"=>"create"}

我检查了'xml_out'的内容，它确实包含正确格式的XML。我做错了什么?

谢谢你的帮助

Answer 1

尝试将代码更改为:

post :create, :department_id => 234, :employees => Hash.from_xml(xml_out)

编辑

从注释来看，最终的解决方案是:

post :create, :department_id => 234, :employees => Hash.from_xml(xml_out)["employees"]