method

collect_deprecations

v7.0.0 - Show latest stable - Class: ActiveSupport::Testing::Deprecation

collect_deprecations(deprecator = nil)

public

Returns 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"
end # => ["message"]

If no deprecator is given, defaults to ActiveSupport::Deprecation.

collect_deprecations do
  CustomDeprecator.warn "custom message"
  ActiveSupport::Deprecation.warn "message"
end # => ["message"]

# File activesupport/lib/active_support/testing/deprecation.rb, line 75
      def collect_deprecations(deprecator = nil)
        deprecator ||= ActiveSupport::Deprecation
        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

collect_deprecations

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