--- /dev/null
+module ActiveSupport
+ module Testing
+ module Deprecation #:nodoc:
+ def assert_deprecated(match = nil, &block)
+ result, warnings = collect_deprecations(&block)
+ assert !warnings.empty?, "Expected a deprecation warning within the block but received none"
+ if match
+ match = Regexp.new(Regexp.escape(match)) unless match.is_a?(Regexp)
+ assert warnings.any? { |w| w =~ match }, "No deprecation warning matched #{match}: #{warnings.join(', ')}"
+ end
+ result
+ end
+
+ def assert_not_deprecated(&block)
+ result, deprecations = collect_deprecations(&block)
+ assert deprecations.empty?, "Expected no deprecation warning within the block but received #{deprecations.size}: \n #{deprecations * "\n "}"
+ result
+ end
+
+ private
+ def collect_deprecations
+ old_behavior = ActiveSupport::Deprecation.behavior
+ deprecations = []
+ ActiveSupport::Deprecation.behavior = Proc.new do |message, callstack|
+ deprecations << message
+ end
+ result = yield
+ [result, deprecations]
+ ensure
+ ActiveSupport::Deprecation.behavior = old_behavior
+ end
+ end
+ end
+end
+
+begin
+ require 'test/unit/error'
+
+ module Test
+ module Unit
+ class Error # :nodoc:
+ # Silence warnings when reporting test errors.
+ def message_with_silenced_deprecation
+ ActiveSupport::Deprecation.silence do
+ message_without_silenced_deprecation
+ end
+ end
+
+ alias_method_chain :message, :silenced_deprecation
+ end
+ end
+ end
+rescue LoadError
+ # Using miniunit, ignore.
+end