class ActiveSupport::TestCase

# File activesupport/lib/active_support/test_case.rb, line 38
def test_order
  ActiveSupport.test_order ||= :random
end

Returns the order in which test cases are run.

ActiveSupport::TestCase.test_order # => :random

Possible values are :random, :parallel, :alpha, :sorted. Defaults to :random.

# File activesupport/lib/active_support/test_case.rb, line 28
def test_order=(new_order)
  ActiveSupport.test_order = new_order
end

Sets the order in which test cases are run.

ActiveSupport::TestCase.test_order = :random # => :random

Valid values are:

• :random (to run tests in random order)

• :parallel (to run tests in parallel)

• :sorted (to run tests alphabetically by method name)

• :alpha (equivalent to :sorted)

# File activesupport/lib/active_support/test_case.rb, line 77
def assert_nothing_raised(*args)
  if args.present?
    ActiveSupport::Deprecation.warn(
      "Passing arguments to assert_nothing_raised "            "is deprecated and will be removed in Rails 5.1.")
  end
  yield
end

Assertion that the block should not raise an exception.

Passes if evaluated code in the yielded block raises no exception.

assert_nothing_raised do
  perform_service(param: 'no_exception')
end