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Using Knapsack Pro with Cucumber

Load tests faster with spring

Take a look at Using Knapsack Pro with spring.

Require different config files

You may want to require different Cucumber configurations for different sets of tests (e.g., user dashboard tests vs admin dashboard tests). You can do so with KNAPSACK_PRO_TEST_DIR and KNAPSACK_PRO_TEST_FILE_PATTERN:

# User
export KNAPSACK_PRO_TEST_DIR="features/support/cucumber_config_1.rb"
export KNAPSACK_PRO_TEST_FILE_PATTERN="features/user_dashboard/**{,/*/**}/*.feature"
bundle exec rake "knapsack_pro:queue:cucumber[--verbose]"

# Admin
export KNAPSACK_PRO_TEST_DIR="features/support/cucumber_config_2.rb"
export KNAPSACK_PRO_TEST_FILE_PATTERN="features/admin_dashboard/**{,/*/**}/*.feature"
bundle exec rake "knapsack_pro:queue:cucumber[--verbose]"


How do I fix invalid option: --require?

If you use Cucumber 2.99 and cucumber-rails, your tests could fail with exit status 1 and the following error:

invalid option: --require

minitest options:
-h, --help Display this help.
--no-plugins Bypass minitest plugin auto-loading (or set $MT_NO_PLUGINS).
-s, --seed SEED Sets random seed. Also via env. Eg: SEED=n rake
-v, --verbose Verbose. Show progress processing files.
-n, --name PATTERN Filter run on /regexp/ or string.
--exclude PATTERN Exclude /regexp/ or string from run.

Known extensions: rails, pride
-w, --warnings Run with Ruby warnings enabled
-e, --environment ENV Run tests in the ENV environment
-b, --backtrace Show the complete backtrace
-d, --defer-output Output test failures and errors after the test run
-f, --fail-fast Abort test run on first failure or error
-c, --[no-]color Enable color in the output
-p, --pride Pride. Show your testing pride!

The issue happens when MiniTest is required after MultiTest.disable_autorun has been called. You can fix it with:

# features/support/env.rb

require 'cucumber/rails'

# After requiring cucumber/rails
require 'multi_test'

How do I fix cannot load such file -- stripe_mock (LoadError)?

Knapsack Pro relies on Cucumber::Rake::Task, which uses Bundler. Bundler employs a performance trick that may cause some subtle side-effects. You can disable such a trick with: