想请教一下有关 rails test 无法正确运行的问题

sws797 — Wed, 12 Sep 2018 09:19:03 +0800

写在前面

2018 年 09 月 13 日 09:28:53（最新）
这个问题是由于 gem 包版本所导致，是一个不是问题的问题，建议直接查看 22 楼
我怎么总碰到这种奇葩事情

前情提要

我是根据《Ruby on Rails 教程第 4 版》([美] 迈克尔·哈特尔（Michael, Hartl）)自学 Rails
现在看到3.3 开始测试的章节
在编写一个失败测试（测试一个没有的页面）时出现了无法正确得到测试结果的问题

问题概要

如果我写了 100 个测试，其中有 10 个失败了，那么我也只能得到其中的一个失败
rails test 应该有总结性的语句告诉我我跑了 100 个测试，失败了 10 个，但是并没有
rails test 应该有总结性的语句告诉我我跑了 100 个测试，失败了 10 个，但是并没有
rails test 应该有总结性的语句告诉我我跑了 100 个测试，失败了 10 个，但是并没有
它现在只告诉我“你这个页面没写”，不会告诉我另外 9 个错误的事情

目前在重现问题的时候发现似乎是 gem 包的问题，在 16 楼有具体过程重现

问题重现

1. ruby 版本 2.4.4，rails 版本 5.1.2

2. 使用`rails _5.1.2_ new sample_app`创建一个新项目

3. 根据教程修改 Gemfile，为每一个 gem 包确定版本，并运行 bundle

source 'https://rubygems.org'

gem 'rails', '5.1.2'
gem 'puma', '3.9.1'
gem 'sass-rails', '5.0.6'
gem 'uglifier', '3.2.0'
gem 'coffee-rails', '4.2.2'
gem 'jquery-rails', '4.3.1'
gem 'turbolinks', '5.0.1'
gem 'jbuilder', '2.7.0'

group :development, :test do
  gem 'sqlite3', '1.3.13'
  gem 'byebug', '9.0.6', platform: :mri
end

group :development do
  gem 'web-console', '3.5.1'
  gem 'listen', '3.0.8'
  gem 'spring', '2.0.2'
  gem 'spring-watcher-listen', '2.0.1'
end

group :test do
  gem 'rails-controller-testing', '1.0.2'
  gem 'minitest-reporters', '1.1.14'
  gem 'guard', '2.13.0'
  gem 'guard-minitest', '2.4.4'
end

group :production do
  gem 'pg', '0.20.0'
end
# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
gem 'tzinfo-data', platforms: [:mingw, :mswin, :x64_mingw, :jruby]

4. 使用`rails generate controller StaticPages home help`生成控制器，并运行 rails db:migrate

这时运行 rails test 可以得到教程中给出的信息

$ rails test
2 tests, 2 assertions, 0 failures, 0 errors, 0 skips

5. 主动添加测试 about 页面的失败测试

test/controllers/static_pages_controller_test.rb

test 'should get nothing' do
  get  static_pages_about_url
  assert_response :success
end

6. 运行 rails test

教程中给出的结果是

$ rails test
3 tests, 2 assertions, 0 failures, 1 errors, 0 skips

但是我实际只得到了错误信息，并且无法像教程中给出的那种结论式的信息

Running via Spring preloader in process 9911
Run options: --seed 22370

# Running:

.E

Error:
StaticPagesControllerTest#test_should_get_about:
NameError: undefined local variable or method `static_pages_about_url' for #<StaticPagesControllerTest:0x0000000006e2fcb0>
    test/controllers/static_pages_controller_test.rb:15:in `block in <class:StaticPagesControllerTest>'


/home/sws/.rvm/gems/ruby-2.4.4/gems/railties-5.1.2/lib/rails/test_unit/reporter.rb:70:in `method': undefined method `test_should_get_about' for class `Minitest::Result' (NameError)
        from /home/sws/.rvm/gems/ruby-2.4.4/gems/railties-5.1.2/lib/rails/test_unit/reporter.rb:70:in `format_rerun_snippet'
        from /home/sws/.rvm/gems/ruby-2.4.4/gems/railties-5.1.2/lib/rails/test_unit/reporter.rb:23:in `record'
        from /home/sws/.rvm/gems/ruby-2.4.4/gems/minitest-reporters-1.1.14/lib/minitest/minitest_reporter_plugin.rb:21:in `block in record'
        from /home/sws/.rvm/gems/ruby-2.4.4/gems/minitest-reporters-1.1.14/lib/minitest/minitest_reporter_plugin.rb:20:in `each'
        from /home/sws/.rvm/gems/ruby-2.4.4/gems/minitest-reporters-1.1.14/lib/minitest/minitest_reporter_plugin.rb:20:in `record'
        from /home/sws/.rvm/gems/ruby-2.4.4/gems/minitest-5.11.3/lib/minitest.rb:803:in `block in record'
        from /home/sws/.rvm/gems/ruby-2.4.4/gems/minitest-5.11.3/lib/minitest.rb:802:in `each'
        from /home/sws/.rvm/gems/ruby-2.4.4/gems/minitest-5.11.3/lib/minitest.rb:802:in `record'
        from /home/sws/.rvm/gems/ruby-2.4.4/gems/minitest-5.11.3/lib/minitest.rb:334:in `run_one_method'
        from /home/sws/.rvm/gems/ruby-2.4.4/gems/minitest-5.11.3/lib/minitest.rb:321:in `block (2 levels) in run'
        from /home/sws/.rvm/gems/ruby-2.4.4/gems/minitest-5.11.3/lib/minitest.rb:320:in `each'
        from /home/sws/.rvm/gems/ruby-2.4.4/gems/minitest-5.11.3/lib/minitest.rb:320:in `block in run'
        from /home/sws/.rvm/gems/ruby-2.4.4/gems/minitest-5.11.3/lib/minitest.rb:360:in `on_signal'
        from /home/sws/.rvm/gems/ruby-2.4.4/gems/minitest-5.11.3/lib/minitest.rb:347:in `with_info_handler'
        from /home/sws/.rvm/gems/ruby-2.4.4/gems/minitest-5.11.3/lib/minitest.rb:319:in `run'
        from /home/sws/.rvm/gems/ruby-2.4.4/gems/railties-5.1.2/lib/rails/test_unit/line_filtering.rb:11:in `run'
        from /home/sws/.rvm/gems/ruby-2.4.4/gems/minitest-5.11.3/lib/minitest.rb:159:in `block in __run'
        from /home/sws/.rvm/gems/ruby-2.4.4/gems/minitest-5.11.3/lib/minitest.rb:159:in `map'
        from /home/sws/.rvm/gems/ruby-2.4.4/gems/minitest-5.11.3/lib/minitest.rb:159:in `__run'
        from /home/sws/.rvm/gems/ruby-2.4.4/gems/minitest-5.11.3/lib/minitest.rb:136:in `run'
        from /home/sws/.rvm/gems/ruby-2.4.4/gems/railties-5.1.2/lib/rails/test_unit/minitest_plugin.rb:77:in `run'
        from /home/sws/.rvm/gems/ruby-2.4.4/gems/minitest-5.11.3/lib/minitest.rb:63:in `block in autorun'
        from /home/sws/.rvm/gems/ruby-2.4.4/gems/spring-2.0.2/lib/spring/application.rb:171:in `fork'
        from /home/sws/.rvm/gems/ruby-2.4.4/gems/spring-2.0.2/lib/spring/application.rb:171:in `serve'
        from /home/sws/.rvm/gems/ruby-2.4.4/gems/spring-2.0.2/lib/spring/application.rb:141:in `block in run'
        from /home/sws/.rvm/gems/ruby-2.4.4/gems/spring-2.0.2/lib/spring/application.rb:135:in `loop'
        from /home/sws/.rvm/gems/ruby-2.4.4/gems/spring-2.0.2/lib/spring/application.rb:135:in `run'
        from /home/sws/.rvm/gems/ruby-2.4.4/gems/spring-2.0.2/lib/spring/application/boot.rb:19:in `<top (required)>'
        from /home/sws/.rvm/rubies/ruby-2.4.4/lib/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:59:in `require'
        from /home/sws/.rvm/rubies/ruby-2.4.4/lib/ruby/site_ruby/2.4.0/rubygems/core_ext/kernel_require.rb:59:in `require'
        from -e:1:in `<main>'

并且当我再添加一个额外的失败测试时，也无法测到第二个失败
也就是说，它这个测试在测试 about 页面时就出错然后就没有然后了
如果后面还有其它失败也不能正常测试

sws797 (宋万盛)

想请教一下有关 rails test 无法正确运行的问题

写在前面

前情提要

问题概要

问题重现

1. ruby 版本 2.4.4，rails 版本 5.1.2

2. 使用`rails _5.1.2_ new sample_app`创建一个新项目

3. 根据教程修改 Gemfile，为每一个 gem 包确定版本，并运行 bundle

4. 使用`rails generate controller StaticPages home help`生成控制器，并运行 rails db:migrate

5. 主动添加测试 about 页面的失败测试

6. 运行 rails test

教程只给出了 rails 的版本是 5.1.2，但是并没有指明 ruby 的版本，请问我要如何才能解决这个问题呀

sws797 (宋万盛)

想请教一下有关 rails test 无法正确运行的问题

写在前面

前情提要

问题概要

问题重现

1. ruby 版本 2.4.4，rails 版本 5.1.2

2. 使用rails _5.1.2_ new sample_app创建一个新项目

3. 根据教程修改 Gemfile，为每一个 gem 包确定版本，并运行 bundle

4. 使用rails generate controller StaticPages home help生成控制器，并运行 rails db:migrate

5. 主动添加测试 about 页面的失败测试

6. 运行 rails test

教程只给出了 rails 的版本是 5.1.2，但是并没有指明 ruby 的版本，请问我要如何才能解决这个问题呀

2. 使用`rails _5.1.2_ new sample_app`创建一个新项目

4. 使用`rails generate controller StaticPages home help`生成控制器，并运行 rails db:migrate