97 lines
2.6 KiB
Ruby
97 lines
2.6 KiB
Ruby
require 'abstract_unit'
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class Record
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include ActiveSupport::Callbacks
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define_callbacks :before_save, :after_save
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class << self
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def callback_symbol(callback_method)
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returning("#{callback_method}_method") do |method_name|
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define_method(method_name) do
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history << [callback_method, :symbol]
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end
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end
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end
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def callback_string(callback_method)
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"history << [#{callback_method.to_sym.inspect}, :string]"
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end
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def callback_proc(callback_method)
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Proc.new { |model| model.history << [callback_method, :proc] }
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end
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def callback_object(callback_method)
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klass = Class.new
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klass.send(:define_method, callback_method) do |model|
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model.history << [callback_method, :object]
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end
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klass.new
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end
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end
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def history
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@history ||= []
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end
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end
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class Person < Record
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[:before_save, :after_save].each do |callback_method|
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callback_method_sym = callback_method.to_sym
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send(callback_method, callback_symbol(callback_method_sym))
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send(callback_method, callback_string(callback_method_sym))
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send(callback_method, callback_proc(callback_method_sym))
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send(callback_method, callback_object(callback_method_sym))
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send(callback_method) { |model| model.history << [callback_method_sym, :block] }
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end
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def save
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run_callbacks(:before_save)
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run_callbacks(:after_save)
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end
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end
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class ConditionalPerson < Record
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before_save Proc.new { |r| r.history << [:before_save, :proc] }, :if => Proc.new { |r| true }
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before_save Proc.new { |r| r.history << "b00m" }, :if => Proc.new { |r| false }
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before_save Proc.new { |r| r.history << [:before_save, :proc] }, :unless => Proc.new { |r| false }
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before_save Proc.new { |r| r.history << "b00m" }, :unless => Proc.new { |r| true }
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def save
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run_callbacks(:before_save)
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run_callbacks(:after_save)
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end
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end
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class CallbacksTest < Test::Unit::TestCase
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def test_save_person
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person = Person.new
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assert_equal [], person.history
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person.save
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assert_equal [
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[:before_save, :symbol],
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[:before_save, :string],
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[:before_save, :proc],
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[:before_save, :object],
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[:before_save, :block],
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[:after_save, :symbol],
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[:after_save, :string],
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[:after_save, :proc],
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[:after_save, :object],
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[:after_save, :block]
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], person.history
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end
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end
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class ConditionalCallbackTest < Test::Unit::TestCase
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def test_save_conditional_person
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person = ConditionalPerson.new
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person.save
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assert_equal [
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[:before_save, :proc],
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[:before_save, :proc]
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], person.history
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end
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end
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