Method: ActiveSupport::Testing::Deprecation#collect_deprecations

Defined in:
activesupport/lib/active_support/testing/deprecation.rb

#collect_deprecations(deprecator) ⇒ Object

Returns the return value of the block and an array of all the deprecation warnings emitted by the given deprecator during the execution of the yielded block.

collect_deprecations(CustomDeprecator) do
  CustomDeprecator.warn "message"
  ActiveSupport::Deprecation.new.warn "other message"
  :result
end # => [:result, ["message"]]



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# File 'activesupport/lib/active_support/testing/deprecation.rb', line 69

def collect_deprecations(deprecator)
  old_behavior = deprecator.behavior
  deprecations = []
  deprecator.behavior = Proc.new do |message, callstack|
    deprecations << message
  end
  result = yield
  [result, deprecations]
ensure
  deprecator.behavior = old_behavior
end