64 lines
1.1 KiB
Ruby
64 lines
1.1 KiB
Ruby
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require File.expand_path(File.dirname(__FILE__) + '/edgecase')
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class AboutModules < EdgeCase::Koan
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module Nameable
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def set_name(new_name)
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@name = new_name
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end
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def here
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:in_module
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end
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end
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def test_cant_instantiate_modules
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assert_raise(___) do
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Nameable.new
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end
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end
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# ------------------------------------------------------------------
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class Dog
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include Nameable
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attr_reader :name
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def initialize
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@name = "Fido"
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end
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def bark
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"WOOF"
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end
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def here
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:in_object
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end
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end
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def test_normal_methods_are_available_in_the_object
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fido = Dog.new
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assert_equal __, fido.bark
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end
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def test_module_methods_are_also_availble_in_the_object
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fido = Dog.new
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assert_nothing_raised(Exception) do
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fido.set_name("Rover")
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end
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end
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def test_module_methods_can_affect_instance_variables_in_the_object
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fido = Dog.new
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assert_equal __, fido.name
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fido.set_name("Rover")
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assert_equal __, fido.name
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end
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def test_classes_can_override_module_methods
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fido = Dog.new
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assert_equal __, fido.here
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end
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end
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