抑制黄瓜错误（未完全显示）

Question

我刚刚安装了黄瓜，并进行了测试。我收到以下错误：

teefcomp:cucumber-intro teef$ cucumber features/manage_users.feature
Using the default profile...
F----F

Failing Scenarios:
cucumber features/manage_users.feature:6 # Scenario: User List

1 scenario (1 failed)
4 steps (4 skipped)
0m0.029s

它似乎正在抑制该错误。我期待这样的事情：

Feature: Manage users
  In order to understand my user base better
  As an administrator
  I want to view a list of users

  Scenario: User List
    Given I have users named George, Mary
      uninitialized constant User (NameError)
      ./features/step_definitions/user_steps.rb:3
      ./features/step_definitions/user_steps.rb:2:in '/^I have users named (.*)$/'
      features/manage_users.feature:7:in 'Given I have users named George, Mary'

有人知道如何让黄瓜完整显示错误吗？

--backtrace、--verbose、-b 和 --trace 不起作用；我仍然看到 F----F 并列出了失败的场景，但我仍然期望“NameError”行上有类似描述的内容。这是旧版本黄瓜的功能吗？ （我正在使用截屏视频来开始使用黄瓜。）

Answer 1

使用 -b 标志运行应该会为您提供完整的回溯编辑

cucumber features/manage_users.feature -b

：

此外，您可以使用 --backtrace 的完整表示法。如果您通过 rake 运行，请使用 --trace 标志运行

以获得完整输出，您可以使用 --format 标志。我通常使用 --format Pretty 来逐行浏览。

来自 --help 输出。

-f, --format FORMAT              How to format features (Default: pretty). Available formats:
                                   debug       : For developing formatters - prints the calls made to the listeners.
                                   html        : Generates a nice looking HTML report.
                                   json        : Prints the feature as JSON
                                   json_pretty : Prints the feature as pretty JSON
                                   junit       : Generates a report similar to Ant+JUnit.
                                   pdf         : Generates a PDF report. You need to have the
                                                 prawn gem installed. Will pick up logo from
                                                 features/support/logo.png or
                                                 features/support/logo.jpg if present.
                                   pretty      : Prints the feature as is - in colours.
                                   progress    : Prints one character per scenario.
                                   rerun       : Prints failing files with line numbers.
                                   stepdefs    : Prints All step definitions with their locations. Same as
                                                 the usage formatter, except that steps are not printed.
                                   tag_cloud   : Prints a tag cloud of tag usage.
                                   usage       : Prints where step definitions are used.
                                                 The slowest step definitions (with duration) are
                                                 listed first. If --dry-run is used the duration
                                                 is not shown, and step definitions are sorted by
                                                 filename instead.
                                 Use --format rerun --out features.txt to write out failing
                                 features. You can rerun them with cucumber @rerun.txt.
                                 FORMAT can also be the fully qualified class name of
                                 your own custom formatter. If the class isn't loaded,
                                 Cucumber will attempt to require a file with a relative
                                 file name that is the underscore name of the class name.
                                 Example: --format Foo::BarZap -> Cucumber will look for
                                 foo/bar_zap.rb. You can place the file with this relative
                                 path underneath your features/support directory or anywhere
                                 on Ruby's LOAD_PATH, for example in a Ruby gem.

Answer 2

如果您的应用程序是 Rails 应用程序，您可以对感兴趣的场景使用 @allow-rescue 标记，然后您的 Rails test_log 将包含有关应用程序中最初引发错误的位置的更多详细信息。

从命令行，您可以使用 tail -n200 log/test_log.rb 快速查看测试日志的末尾（调整行数以查看感兴趣的部分）。