2018-03-04 10:09:32 -05:00
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require_relative '../../spec_helper'
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require_relative 'fixtures/classes'
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require_relative 'shared/set_visibility'
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2017-05-07 08:04:49 -04:00
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describe "Module#private" do
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it_behaves_like :set_visibility, :private
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it "makes the target method uncallable from other types" do
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obj = Object.new
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class << obj
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def foo; true; end
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end
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obj.foo.should == true
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class << obj
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private :foo
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end
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2019-07-27 06:40:09 -04:00
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-> { obj.foo }.should raise_error(NoMethodError)
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2017-05-07 08:04:49 -04:00
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end
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it "makes a public Object instance method private in a new module" do
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m = Module.new do
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private :module_specs_public_method_on_object
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end
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m.should have_private_instance_method(:module_specs_public_method_on_object)
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# Ensure we did not change Object's method
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Object.should_not have_private_instance_method(:module_specs_public_method_on_object)
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end
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it "makes a public Object instance method private in Kernel" do
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Kernel.should have_private_instance_method(
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:module_specs_public_method_on_object_for_kernel_private)
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Object.should_not have_private_instance_method(
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:module_specs_public_method_on_object_for_kernel_private)
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end
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it "returns self" do
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(class << Object.new; self; end).class_eval do
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def foo; end
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private(:foo).should equal(self)
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private.should equal(self)
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end
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end
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it "raises a NameError when given an undefined name" do
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2019-07-27 06:40:09 -04:00
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-> do
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2017-05-07 08:04:49 -04:00
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Module.new.send(:private, :undefined)
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end.should raise_error(NameError)
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end
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2018-03-12 02:54:43 -04:00
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2019-04-27 12:53:23 -04:00
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it "only makes the method private in the class it is called on" do
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base = Class.new do
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def wrapped
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1
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2018-04-28 15:50:06 -04:00
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end
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2019-04-27 12:53:23 -04:00
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end
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2018-03-26 16:48:21 -04:00
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2019-04-27 12:53:23 -04:00
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klass = Class.new(base) do
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def wrapped
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super + 1
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2018-03-12 02:54:43 -04:00
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end
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2019-04-27 12:53:23 -04:00
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private :wrapped
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2018-04-28 15:50:06 -04:00
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end
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2019-04-27 12:53:23 -04:00
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base.new.wrapped.should == 1
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2019-07-27 06:40:09 -04:00
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-> do
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2019-04-27 12:53:23 -04:00
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klass.new.wrapped
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end.should raise_error(NameError)
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end
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it "continues to allow a prepended module method to call super" do
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wrapper = Module.new do
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def wrapped
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super + 1
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2018-04-28 15:50:06 -04:00
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end
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2019-04-27 12:53:23 -04:00
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end
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2018-03-12 02:54:43 -04:00
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2019-04-27 12:53:23 -04:00
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klass = Class.new do
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prepend wrapper
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2018-03-12 02:54:43 -04:00
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2019-04-27 12:53:23 -04:00
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def wrapped
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1
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2018-03-12 02:54:43 -04:00
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end
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2019-04-27 12:53:23 -04:00
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private :wrapped
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2018-03-12 02:54:43 -04:00
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end
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2019-04-27 12:53:23 -04:00
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klass.new.wrapped.should == 2
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2018-03-12 02:54:43 -04:00
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end
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2017-05-07 08:04:49 -04:00
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end
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