Module: Test::Unit::Attribute::ClassMethods

Defined in:
lib/test/unit/attribute.rb

Constant Summary collapse

@@attribute_observers = 
StringifyKeyHash.new

Instance Method Summary collapse

Instance Method Details

#attribute(name, value, options = {}, *method_names) ⇒ Object 



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# File 'lib/test/unit/attribute.rb', line 48

def attribute(name, value, options={}, *method_names)
  unless options.is_a?(Hash)
    method_names << options
    options = {}
  end
  if method_names.empty?
    current_attributes[name] = options.merge(:value => value)
  else
    method_names.each do |method_name|
      set_attributes(method_name, {name => value})
    end
  end
end

#attribute_observers(attribute_name) ⇒ Object 



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# File 'lib/test/unit/attribute.rb', line 115

def attribute_observers(attribute_name)
  @@attribute_observers[attribute_name]
end

#attributes(method_name) ⇒ Object 



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# File 'lib/test/unit/attribute.rb', line 93

def attributes(method_name)
  attributes = attributes_table[method_name]
  ancestors[1..-1].each do |ancestor|
    if ancestor.is_a?(Class) and ancestor < Test::Unit::Attribute
      parent_attributes = ancestor.attributes(method_name)
      if attributes
        attributes = (parent_attributes || {}).merge(attributes)
      else
        attributes = parent_attributes
      end
      break
    end
  end
  attributes || StringifyKeyHash.new
end

#attributes_table ⇒ Object 



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# File 'lib/test/unit/attribute.rb', line 70

def attributes_table
  @attributes_table ||= StringifyKeyHash.new
  super.merge(@attributes_table)
end

#current_attribute(name) ⇒ Object 



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# File 'lib/test/unit/attribute.rb', line 66

def current_attribute(name)
  current_attributes[name] || StringifyKeyHash.new
end

#current_attributes ⇒ Object 



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# File 'lib/test/unit/attribute.rb', line 62

def current_attributes
  @current_attributes ||= StringifyKeyHash.new
end

#method_added(name) ⇒ Object 



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# File 'lib/test/unit/attribute.rb', line 34

def method_added(name)
  super
  return unless defined?(@current_attributes)

  attributes = {}
  kept_attributes = {}
  @current_attributes.each do |attribute_name, attribute|
    attributes[attribute_name] = attribute[:value]
    kept_attributes[attribute_name] = attribute if attribute[:keep]
  end
  set_attributes(name, attributes)
  @current_attributes = kept_attributes
end

#register_attribute_observer(attribute_name, observer = Proc.new) ⇒ Object 



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# File 'lib/test/unit/attribute.rb', line 110

def register_attribute_observer(attribute_name, observer=Proc.new)
  @@attribute_observers[attribute_name] ||= []
  @@attribute_observers[attribute_name] << observer
end

#set_attributes(method_name, new_attributes) ⇒ Object 



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# File 'lib/test/unit/attribute.rb', line 75

def set_attributes(method_name, new_attributes)
  return if new_attributes.empty?
  @attributes_table ||= StringifyKeyHash.new
  @attributes_table[method_name] ||= StringifyKeyHash.new
  current_attributes = @attributes_table[method_name]
  new_attributes.each do |key, value|
    observers = attribute_observers(key) || []
    observers.each do |observer|
      observer.call(self,
                    StringifyKeyHash.stringify(key),
                    (attributes(method_name) || {})[key],
                    value,
                    method_name)
    end
    current_attributes[key] = value
  end
end