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require_relative '../../spec_helper'
require_relative 'fixtures/classes'
require_relative 'shared/set_visibility'
describe "Module#private" do
it_behaves_like :set_visibility, :private
it "makes the target method uncallable from other types" do
obj = Object.new
class << obj
def foo; true; end
end
obj.foo.should == true
class << obj
private :foo
end
-> { obj.foo }.should raise_error(NoMethodError)
end
it "makes a public Object instance method private in a new module" do
m = Module.new do
private :module_specs_public_method_on_object
end
m.should have_private_instance_method(:module_specs_public_method_on_object)
# Ensure we did not change Object's method
Object.should_not have_private_instance_method(:module_specs_public_method_on_object)
end
it "makes a public Object instance method private in Kernel" do
Kernel.should have_private_instance_method(
:module_specs_public_method_on_object_for_kernel_private)
Object.should_not have_private_instance_method(
:module_specs_public_method_on_object_for_kernel_private)
end
ruby_version_is ""..."3.1" do
it "returns self" do
(class << Object.new; self; end).class_eval do
def foo; end
private(:foo).should equal(self)
private.should equal(self)
end
end
end
ruby_version_is "3.1" do
it "returns argument or arguments if given" do
(class << Object.new; self; end).class_eval do
def foo; end
private(:foo).should equal(:foo)
private([:foo, :foo]).should == [:foo, :foo]
private(:foo, :foo).should == [:foo, :foo]
private.should equal(nil)
end
end
end
it "raises a NameError when given an undefined name" do
-> do
Module.new.send(:private, :undefined)
end.should raise_error(NameError)
end
it "only makes the method private in the class it is called on" do
base = Class.new do
def wrapped
1
end
end
klass = Class.new(base) do
def wrapped
super + 1
end
private :wrapped
end
base.new.wrapped.should == 1
-> do
klass.new.wrapped
end.should raise_error(NameError)
end
it "continues to allow a prepended module method to call super" do
wrapper = Module.new do
def wrapped
super + 1
end
end
klass = Class.new do
prepend wrapper
def wrapped
1
end
private :wrapped
end
klass.new.wrapped.should == 2
end
end
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