在rails 5中，

我使用这种方式运行单个测试文件(所有测试在一个文件中)

rails test -n /TopicsControllerTest/ -v

类名可以用来匹配所需的文件TopicsControllerTest

我的类类TopicsControllerTest < ActionDispatch::IntegrationTest

输出:

如果你愿意，你可以调整正则表达式来匹配单个测试方法\TopicsControllerTest#test_Should_delete\

rails test -n /TopicsControllerTest#test_Should_delete/ -v

有很多选择:

rspec spec                           # All specs
rspec spec/models                    # All specs in the models directory
rspec spec/models/a_model_spec.rb    # All specs in the some_model model spec
rspec spec/models/a_model_spec.rb:nn # Run the spec that includes line 'nn'
rspec -e"text from a test"           # Runs specs that match the text
rspec spec --tag focus               # Runs specs that have :focus => true
rspec spec --tag focus:special       # Run specs that have :focus => special
rspec spec --tag focus ~skip         # Run tests except those with :focus => true

不知道这个已经可用了多长时间，但是有一个Rspec配置用于运行过滤-所以现在你可以把它添加到你的spec_helper.rb:

RSpec.configure do |config|
  config.filter_run_when_matching :focus
end

然后在it、context或describe中添加一个focus标签，只运行该块:

it 'runs a test', :focus do
  ...test code
end

RSpec文档:

https://www.rubydoc.info/github/rspec/rspec-core/RSpec/Core/Configuration#filter_run_when_matching-instance_method

对于单个示例的规格文件，您需要在最后添加行号，例如

rspec spec/controllers/api/v1/card_list_controller_spec.rb:35

对于单个文件，您可以指定您的文件路径，例如

rspec spec/controllers/api/v1/card_list_controller_spec.rb

对于spec文件夹中的整个Rspec示例，您可以尝试使用此命令

bundle exec rspec spec

通常我会这样做:

rspec ./spec/controllers/groups_controller_spec.rb:42

其中42表示我要运行的测试行。

你也可以使用标签。在这里看到的。

使用bundle exec:

bundle exec rspec ./spec/controllers/groups_controller_spec.rb:42

从项目的根目录运行命令:

# run all specs in the project's spec folder
bundle exec rspec 

# run specs nested under a directory, like controllers
bundle exec rspec spec/controllers

# run a single test file
bundle exec rspec spec/controllers/groups_controller_spec.rb

# run a test or subset of tests within a file
# e.g., if the 'it', 'describe', or 'context' block you wish to test
# starts at line 45, run:
bundle exec rspec spec/controllers/groups_controller_spec.rb:45

此外，您可以使用——example (-e)选项来运行特定的测试，这些测试部分或完全匹配给定测试路径的'it'、'describe'或'context'块中的文本标签:

# run groups controller specs in blocks with a label containing 'spaghetti flag is false'
bundle exec rspec spec/controllers/groups_controller_spec.rb -e 'spaghetti flag is false'

# Less granularly, you can run specs for blocks containing a substring of text 
# that matches one or more block labels, like 'spaghetti' or 'paghett'
bundle exec rspec spec/controllers/groups_controller_spec.rb -e spaghetti

这将运行块内嵌套的所有测试，标签与示例选项接收到的字符串参数匹配。

When using the example option, I recommend also appending --format documentation (shorthand: -f documentation) to your bundle command (e.g., bundle exec rspec spec/some_file.rb -e spaghetti -f documentation). Documentation-formatting replaces the normal ./F output with an easy-to-read pretty printed breakdown showing the nested block labels for the examples you're running and outputs the printed label for each example (it block) in green or red to denote whether it passed or failed. This provides better confirmation that your example argument matches the specs you intended to run, and it gives live visibility to which examples are passing/failing during longer test runs where the example argument matches many block labels and/or matched blocks contain many nested examples.

附加阅读(文档链接)

例子的选择 格式选项