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# frozen_string_literal: true
gem "minitest" # make sure we get the gem, not stdlib
require "minitest"
require "active_support/testing/tagged_logging"
require "active_support/testing/setup_and_teardown"
require "active_support/testing/assertions"
require "active_support/testing/method_call_assertions"
require "active_support/testing/deprecation"
require "active_support/testing/declarative"
require "active_support/testing/isolation"
require "active_support/testing/constant_lookup"
require "active_support/testing/time_helpers"
require "active_support/testing/file_fixtures"
require "active_support/testing/parallelization"
require "concurrent/utility/processor_counter"
module ActiveSupport
class TestCase < ::Minitest::Test
Assertion = Minitest::Assertion
class << self
# 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+)
def test_order=(new_order)
ActiveSupport.test_order = new_order
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+.
def test_order
ActiveSupport.test_order ||= :random
end
# Parallelizes the test suite.
#
# Takes a +workers+ argument that controls how many times the process
# is forked. For each process a new database will be created suffixed
# with the worker number.
#
# test-database-0
# test-database-1
#
# If <tt>ENV["PARALLEL_WORKERS"]</tt> is set the workers argument will be ignored
# and the environment variable will be used instead. This is useful for CI
# environments, or other environments where you may need more workers than
# you do for local testing.
#
# If the number of workers is set to +1+ or fewer, the tests will not be
# parallelized.
#
# If +workers+ is set to +:number_of_processors+, the number of workers will be
# set to the actual core count on the machine you are on.
#
# The default parallelization method is to fork processes. If you'd like to
# use threads instead you can pass <tt>with: :threads</tt> to the +parallelize+
# method. Note the threaded parallelization does not create multiple
# database and will not work with system tests at this time.
#
# parallelize(workers: :number_of_processors, with: :threads)
#
# The threaded parallelization uses minitest's parallel executor directly.
# The processes parallelization uses a Ruby DRb server.
def parallelize(workers: :number_of_processors, with: :processes)
workers = Concurrent.physical_processor_count if workers == :number_of_processors
workers = ENV["PARALLEL_WORKERS"].to_i if ENV["PARALLEL_WORKERS"]
return if workers <= 1
executor = case with
when :processes
Testing::Parallelization.new(workers)
when :threads
Minitest::Parallel::Executor.new(workers)
else
raise ArgumentError, "#{with} is not a supported parallelization executor."
end
self.lock_threads = false if defined?(self.lock_threads) && with == :threads
Minitest.parallel_executor = executor
parallelize_me!
end
# Set up hook for parallel testing. This can be used if you have multiple
# databases or any behavior that needs to be run after the process is forked
# but before the tests run.
#
# Note: this feature is not available with the threaded parallelization.
#
# In your +test_helper.rb+ add the following:
#
# class ActiveSupport::TestCase
# parallelize_setup do
# # create databases
# end
# end
def parallelize_setup(&block)
ActiveSupport::Testing::Parallelization.after_fork_hook do |worker|
yield worker
end
end
# Clean up hook for parallel testing. This can be used to drop databases
# if your app uses multiple write/read databases or other clean up before
# the tests finish. This runs before the forked process is closed.
#
# Note: this feature is not available with the threaded parallelization.
#
# In your +test_helper.rb+ add the following:
#
# class ActiveSupport::TestCase
# parallelize_teardown do
# # drop databases
# end
# end
def parallelize_teardown(&block)
ActiveSupport::Testing::Parallelization.run_cleanup_hook do |worker|
yield worker
end
end
end
alias_method :method_name, :name
include ActiveSupport::Testing::TaggedLogging
prepend ActiveSupport::Testing::SetupAndTeardown
include ActiveSupport::Testing::Assertions
include ActiveSupport::Testing::MethodCallAssertions
include ActiveSupport::Testing::Deprecation
include ActiveSupport::Testing::TimeHelpers
include ActiveSupport::Testing::FileFixtures
extend ActiveSupport::Testing::Declarative
# test/unit backwards compatibility methods
alias :assert_raise :assert_raises
alias :assert_not_empty :refute_empty
alias :assert_not_equal :refute_equal
alias :assert_not_in_delta :refute_in_delta
alias :assert_not_in_epsilon :refute_in_epsilon
alias :assert_not_includes :refute_includes
alias :assert_not_instance_of :refute_instance_of
alias :assert_not_kind_of :refute_kind_of
alias :assert_no_match :refute_match
alias :assert_not_nil :refute_nil
alias :assert_not_operator :refute_operator
alias :assert_not_predicate :refute_predicate
alias :assert_not_respond_to :refute_respond_to
alias :assert_not_same :refute_same
ActiveSupport.run_load_hooks(:active_support_test_case, self)
end
end
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