Rspec - 在另一个类中模拟一个方法

Question

我是RSpec的新手,所以请耐心等待!

这是我的代码.

TESTFILE:

before(:all) do
  @package = Package.new("testing")
  @param_source = "cat #{root}/file/test.json"
end

"it should update the version params appropriately" do
  group_params = mock("params")
  group_params.expects(:each).multiple_yields([["staging", @param_source]])
  @package.update_version(group_params)
  # Some assertions here
end

班级档案:

class Package
  def initialize(db_file)
     # Some http options set for httparty
  end

  def update_version(group_params)
    group_params.each do |environment, param_source|
      group_json = JSON.parse(HTTParty.get(param_source, @http_cred))
      # Bunch more stuff done here
  end

基本上,我有这个test.json,我想用来验证事情是否正确解析.这个HTTParty.get调用期望进行GET调用.有没有办法可以用param_source变量来模拟它.如果我需要在这里提供更多信息,请告诉我.谢谢您的帮助!

Answer 1

存根:

HTTParty.stub(get: file_content)

或者模仿:

HTTParty.should_receive(:get).with(foo, bar).and_return(file_content)

或者在新的rspec语法中存根:

allow(HTTParty).to receive(:get).and_return(file_content)

或者用新语法嘲笑:

expect(HTTParty).to receive(:get).with(foo, bar).and_return(file_content)