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require File.expand_path('../../../spec_helper', __FILE__)
require File.expand_path('../fixtures/common', __FILE__)
describe "BasicObject" do
it "raises NoMethodError for nonexistent methods after #method_missing is removed" do
script = fixture __FILE__, "remove_method_missing.rb"
ruby_exe(script).chomp.should == "NoMethodError"
end
it "raises NameError when referencing built-in constants" do
lambda { class BasicObjectSpecs::BOSubclass; Kernel; end }.should raise_error(NameError)
end
it "does not define built-in constants (according to const_defined?)" do
BasicObject.const_defined?(:Kernel).should be_false
end
it "does not define built-in constants (according to defined?)" do
BasicObjectSpecs::BOSubclass.kernel_defined?.should be_nil
end
it "includes itself in its list of constants" do
BasicObject.constants.should include(:BasicObject)
end
end
describe "BasicObject metaclass" do
before :each do
@meta = class << BasicObject; self; end
end
it "is an instance of Class" do
@meta.should be_an_instance_of(Class)
end
it "has Class as superclass" do
@meta.superclass.should equal(Class)
end
it "contains methods for the BasicObject class" do
@meta.class_eval do
def rubyspec_test_method() :test end
end
BasicObject.rubyspec_test_method.should == :test
end
end
describe "BasicObject instance metaclass" do
before :each do
@object = BasicObject.new
@meta = class << @object; self; end
end
it "is an instance of Class" do
@meta.should be_an_instance_of(Class)
end
it "has BasicObject as superclass" do
@meta.superclass.should equal(BasicObject)
end
it "contains methods defined for the BasicObject instance" do
@meta.class_eval do
def test_method() :test end
end
@object.test_method.should == :test
end
end
describe "BasicObject subclass" do
it "contains Kernel methods when including Kernel" do
obj = BasicObjectSpecs::BOSubclass.new
obj.instance_variable_set(:@test, :value)
obj.instance_variable_get(:@test).should == :value
obj.respond_to?(:hash).should == true
end
describe "BasicObject references" do
it "can refer to BasicObject from within itself" do
lambda { BasicObject::BasicObject }.should_not raise_error
end
end
end
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