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require 'delegate'
require 'active_support'
require 'active_support/concern'
require 'active_support/core_ext/string'
module RSpec
module Rails
# @private
def self.disable_testunit_autorun
# `Test::Unit::AutoRunner.need_auto_run=` was introduced to the test-unit
# gem in version 2.4.9. Previous to this version `Test::Unit.run=` was
# used. The implementation of test-unit included with Ruby has neither
# method.
if defined?(Test::Unit::AutoRunner.need_auto_run = ())
Test::Unit::AutoRunner.need_auto_run = false
elsif defined?(Test::Unit.run = ())
Test::Unit.run = false
end
end
private_class_method :disable_testunit_autorun
if ::Rails::VERSION::STRING >= '4.1.0'
if defined?(Kernel.gem)
gem 'minitest'
else
require 'minitest'
end
require 'minitest/assertions'
# Constant aliased to either Minitest or TestUnit, depending on what is
# loaded.
Assertions = Minitest::Assertions
elsif RUBY_VERSION >= '2.2.0'
# Minitest / TestUnit has been removed from ruby core. However, we are
# on an old Rails version and must load the appropriate gem
if ::Rails::VERSION::STRING >= '4.0.0'
# ActiveSupport 4.0.x has the minitest '~> 4.2' gem as a dependency
# This gem has no `lib/minitest.rb` file.
gem 'minitest' if defined?(Kernel.gem)
require 'minitest/unit'
Assertions = MiniTest::Assertions
elsif ::Rails::VERSION::STRING >= '3.2.21'
# TODO: Change the above check to >= '3.2.22' once it's released
begin
# Test::Unit "helpfully" sets up autoload for its `AutoRunner`.
# While we do not reference it directly, when we load the `TestCase`
# classes from AS (ActiveSupport), AS kindly references `AutoRunner`
# for everyone.
#
# To handle this we need to pre-emptively load 'test/unit' and make
# sure the version installed has `AutoRunner` (the 3.x line does to
# date). If so, we turn the auto runner off.
require 'test/unit'
require 'test/unit/assertions'
disable_testunit_autorun
rescue LoadError => e
raise LoadError, <<-ERR.squish, e.backtrace
Ruby 2.2+ has removed test/unit from the core library. Rails
requires this as a dependency. Please add test-unit gem to your
Gemfile: `gem 'test-unit', '~> 3.0'` (#{e.message})"
ERR
end
Assertions = Test::Unit::Assertions
else
abort <<-MSG.squish
Ruby 2.2+ is not supported on Rails #{::Rails::VERSION::STRING}.
Check the Rails release notes for the appropriate update with
support.
MSG
end
else
begin
require 'test/unit/assertions'
rescue LoadError
# work around for Rubinius not having a std std-lib
require 'rubysl-test-unit' if defined?(RUBY_ENGINE) && RUBY_ENGINE == 'rbx'
require 'test/unit/assertions'
end
# Turn off test unit's auto runner for those using the gem
disable_testunit_autorun
# Constant aliased to either Minitest or TestUnit, depending on what is
# loaded.
Assertions = Test::Unit::Assertions
end
# @private
class AssertionDelegator < Module
def initialize(*assertion_modules)
assertion_class = Class.new(SimpleDelegator) do
include ::RSpec::Rails::Assertions
include ::RSpec::Rails::MinitestCounters
assertion_modules.each { |mod| include mod }
end
super() do
define_method :build_assertion_instance do
assertion_class.new(self)
end
def assertion_instance
@assertion_instance ||= build_assertion_instance
end
assertion_modules.each do |mod|
mod.public_instance_methods.each do |method|
next if method == :method_missing || method == "method_missing"
define_method(method.to_sym) do |*args, &block|
assertion_instance.send(method.to_sym, *args, &block)
end
end
end
end
end
end
# Adapts example groups for `Minitest::Test::LifecycleHooks`
#
# @private
module MinitestLifecycleAdapter
extend ActiveSupport::Concern
included do |group|
group.before { after_setup }
group.after { before_teardown }
group.around do |example|
before_setup
example.run
after_teardown
end
end
def before_setup
end
def after_setup
end
def before_teardown
end
def after_teardown
end
end
# @private
module MinitestCounters
attr_writer :assertions
def assertions
@assertions ||= 0
end
end
# @private
module SetupAndTeardownAdapter
extend ActiveSupport::Concern
module ClassMethods
# Wraps `setup` calls from within Rails' testing framework in `before`
# hooks.
def setup(*methods, &block)
methods.each do |method|
if method.to_s =~ /^setup_(with_controller|fixtures|controller_request_and_response)$/
prepend_before { __send__ method }
else
before { __send__ method }
end
end
before(&block) if block
end
# @api private
#
# Wraps `teardown` calls from within Rails' testing framework in
# `after` hooks.
def teardown(*methods, &block)
methods.each { |method| after { __send__ method } }
after(&block) if block
end
end
def initialize(*args)
super
@example = nil
end
def method_name
@example
end
end
# @private
module MinitestAssertionAdapter
extend ActiveSupport::Concern
# @private
module ClassMethods
# Returns the names of assertion methods that we want to expose to
# examples without exposing non-assertion methods in Test::Unit or
# Minitest.
def assertion_method_names
methods = ::RSpec::Rails::Assertions.
public_instance_methods.
select do |m|
m.to_s =~ /^(assert|flunk|refute)/
end
methods + test_unit_specific_methods
end
def define_assertion_delegators
assertion_method_names.each do |m|
define_method(m.to_sym) do |*args, &block|
assertion_delegator.send(m.to_sym, *args, &block)
end
end
end
# Starting on Rails 4, Minitest is the default testing framework so no
# need to add TestUnit specific methods.
if ::Rails::VERSION::STRING >= '4.0.0'
def test_unit_specific_methods
[]
end
else
def test_unit_specific_methods
[:build_message]
end
end
end
class AssertionDelegator
include ::RSpec::Rails::Assertions
include ::RSpec::Rails::MinitestCounters
end
def assertion_delegator
@assertion_delegator ||= AssertionDelegator.new
end
included do
define_assertion_delegators
end
end
# Backwards compatibility. It's unlikely that anyone is using this
# constant, but we had forgotten to mark it as `@private` earlier
#
# @private
TestUnitAssertionAdapter = MinitestAssertionAdapter
end
end
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