使用 Rspec 测试 XmlBuilder

Question

我发布了一个关于使用 XmlBuilder 呈现 XML 的问题 ()。该特定问题已解决，但我运行进入另一个测试此控制器操作的问题。

问题似乎与 Rspec 有关，因为用 Minitest 编写的相同测试工作正常，使用 cURL 也工作。

调试时，Rspec 从不尝试呈现 xml 生成器模板。它只是跳过模板并呈现带有空白正文的 http 状态 200。

控制器、xml 生成器、测试和测试结果如下：

controllers/bars_controller.rb

require 'builder'

class BarsController < ApplicationController

  def show
    @bar = Bar.find(params[:id])
    render template: 'bars/show.xml.builder', formats: [:xml]
  end

 end

/views/bars/show.xml.builder

xml.instruct!
xml.bar do
  xml.foo(@bar.foo)
  xml.bar(@bar.bar)
end

/测试/controllers/bars_controller_test.rb

 require 'test_helper'

 class BarsControllerTest < ActionController::TestCase
  setup do
    @bar = Bar.create(foo: 'bar', bar: 'foo')
  end

  test "should show bar" do
    get :show, id: @bar
    assert_response :success
    assert_match "<bar>", response.body
  end
 end

/spec/controllers/bars_controller_spec.rb

 require_relative '../rails_helper'

 describe BarsController do

  describe 'a POST to :show' do
    before do
      @bar = Bar.create(foo: 'bar', bar: 'foo')
      post :show, id: @bar
    end

    it 'should show bar' do
      expect(response).to be_success
      expect(response.body).to include("<bar>")
    end
  end
 end

测试结果

> rake test
Run options: --seed 50688

# Running:
.
Finished in 0.096901s, 10.3198 runs/s, 30.9593 assertions/s.
1 runs, 3 assertions, 0 failures, 0 errors, 0 skips

> rspec spec/controllers/bars_controller_spec.rb 
F

Failures:

  1) BarsController a POST to :show responds with xml bar
     Failure/Error: expect(response.body).to include("<bar>")
       expected "" to include "<bar>"
     # ./spec/controllers/bars_controller_spec.rb:13:in `block (3 levels) in <top (required)>'

Finished in 0.01726 seconds (files took 1.53 seconds to load)
1 example, 1 failure

Failed examples:

rspec ./spec/controllers/bars_controller_spec.rb:11 # BarsController a POST to :show responds with xml bar

Answer 1

RSpec 控制器测试默认不渲染视图。为了呈现视图，将 render_views 添加到 describe 块：

describe 'a POST to :show' do
  render_views

  before do
    @bar = Bar.create(foo: 'bar', bar: 'foo')
    post :show, id: @bar
  end

  it 'should show bar' do
    expect(response).to be_success
    expect(response.body).to include("<bar>")
  end
end

使用 Rspec 测试 XmlBuilder

Testing XmlBuilder with Rspec

xml

rspec

ruby-on-rails

xml-builder

测试结果