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/Users/texel/Documents/git/quippo/vendor/rails/activesupport/lib/active_support/buffered_logger.rb:99:in `write': closed stream (IOError)
	from /Users/texel/Documents/git/quippo/vendor/rails/activesupport/lib/active_support/buffered_logger.rb:99:in `flush'
	from /Users/texel/Documents/git/quippo/vendor/rails/activesupport/lib/active_support/buffered_logger.rb:96:in `synchronize'
	from /Users/texel/Documents/git/quippo/vendor/rails/activesupport/lib/active_support/buffered_logger.rb:96:in `flush'
	from /Users/texel/Documents/git/quippo/vendor/rails/activesupport/lib/active_support/buffered_logger.rb:116:in `auto_flush'
	from /Users/texel/Documents/git/quippo/vendor/rails/activesupport/lib/active_support/buffered_logger.rb:65:in `add'
	from /Users/texel/Documents/git/quippo/vendor/rails/activesupport/lib/active_support/buffered_logger.rb:71:in `debug'
	from /Users/texel/Documents/git/quippo/vendor/rails/activerecord/lib/active_record/connection_adapters/abstract_adapter.rb:189:in `log_info'
	from /Users/texel/D

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# RSpec
expect { do_something }.to change { something.else }.from(nil).to(an_instance_of(FooClass))

# Mocha
expect { do_something }.to change { something.else }.from(nil).to(instance_of?(FooClass))

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CalendarEvent < ActiveRecord::Base
  include TimeAttributeExtensions
  ...

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module TimeAttributeExtensions
  module ClassMethods

    def define_attribute_methods
      if super
        columns_hash.each do |name, column|
          if [:datetime, :timestamp].include?(column.type)
            define_method("#{name}=") do |time|
              super parse_time_from_hash(time)
            end

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ActiveRecord::Base.send(:include, TimeAttributeExtensions)

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ActiveRecord::Base.send(:include, TimeAttributeExtensions)

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module TimeAttributeExtensions
  module ClassMethods

    def define_attribute_methods_with_time_parsing
      if define_attribute_methods_without_time_parsing

        columns_hash.each do |name, column|
          if [:datetime, :timestamp].include?(column.type)
            unless method_defined?(:"#{name}_without_time_parsing=")

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def start_time_with_hash_parsing=(new_time)
  new_time = parse_time_from_hash(new_time)
  start_time_without_hash_parsing = new_time
end
alias_method_chain :start_time=, :hash_parsing

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CalendarEvent < ActiveRecord::Base
  ...
  def start_time=(new_time)
    self[:start_time] = parse_time_from_hash(new_time)
  end
end

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 >> CalendarEvent.new(\
      :start_time => {:date => '6/23/2009', :time => '12:30', :meridian => 'pm'})    
 => #<CalendarEvent start_time: "2009-06-23 19:30:00">