如何在 Rspec 中仅运行特定测试？

Question

I think there's a way to run only tests with a given label. Anybody know?

Answer 1

You can tag examples with :focus hash attribute. For example,

# spec/foo_spec.rb
RSpec.describe Foo do
  it 'is never executed' do
    raise "never reached"
  end

  it 'runs this spec', focus: true do
    expect(1).to eq(1)
  end
end

rspec --tag focus spec/foo_spec.rb

More info on GitHub . (anyone with a better link, please advise)

(update)

RSpec is now superbly documented on relishapp.com . See the --tag option section for details.

As of v2.6 this kind of tag can be expressed even more simply by including the configuration option treat_symbols_as_metadata_keys_with_true_values , which allows you to do:

describe "Awesome feature", :awesome do

where :awesome is treated as if it were :awesome => true .

Also, see this answer for how to configure RSpec to automatically run 'focused' tests. This works especially well with Guard .

Answer 2

You can run all tests that contain a specific string with --example (or -e) option :

rspec spec/models/user_spec.rb -e "User is admin"

I use that one the most.

Answer 3

Make sure RSpec is configured in your spec_helper.rb to pay attention to focus :

RSpec.configure do |config|
  config.filter_run focus: true
  config.run_all_when_everything_filtered = true
end

Then in your specs, add focus: true as an argument:

it 'can do so and so', focus: true do
  # This is the only test that will run
end

You can also focus tests by changing it to fit (or exclude tests with xit ), like so:

fit 'can do so and so' do
  # This is the only test that will run
end

Answer 4

或者，您可以传递行号： rspec spec/my_spec.rb:75 - 行号可以指向单个规范或上下文/描述块（运行该块中的所有规范）

Answer 5

You can also string multiple line numbers together with colon :

$ rspec ./spec/models/company_spec.rb:81:82:83:103

Output:

Run options: include {:locations=>{"./spec/models/company_spec.rb"=>[81, 82, 83, 103]}}

Answer 6

As of RSpec 2.4 (I guess) you can prepend an f or x to it , specify , describe and context :

fit 'run only this example' do ... end
xit 'do not run this example' do ... end

http://rdoc.info/github/rspec/rspec-core/RSpec/Core/ExampleGroup#fit-class_method http://rdoc.info/github/rspec/rspec-core/RSpec/Core/ExampleGroup#xit-class_method

Be sure to have config.filter_run focus: true and config.run_all_when_everything_filtered = true in your spec_helper.rb .

Answer 7

In newer versions of RSpec, it's even easier to configure support fit :

# spec_helper.rb

# PREFERRED
RSpec.configure do |c|
  c.filter_run_when_matching :focus
end

# DEPRECATED
RSpec.configure do |c|
  c.filter_run focus: true
  c.run_all_when_everything_filtered = true
end

See:

https://relishapp.com/rspec/rspec-core/docs/filtering/filter-run-when-matching

https://relishapp.com/rspec/rspec-core/v/3-7/docs/configuration/run-all-when-everything-filtered

Answer 8

Also you can run specs which have focus: true by default

spec/spec_helper.rb

RSpec.configure do |c|
  c.filter_run focus: true
  c.run_all_when_everything_filtered = true
end

Then simply run

$ rspec

and only focused test will be run

then when you remove focus: true all tests well be run again

More information: https://www.relishapp.com/rspec/rspec-core/v/2-6/docs/filtering/inclusion-filters

Answer 9

您可以作为rspec spec/models/user_spec.rb -e "SomeContext won't run this" 。