spec/ruby/core/true/singleton_method_spec.rb


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require_relative '../../spec_helper'

describe "TrueClass#singleton_method" do
  ruby_version_is '3.3' do
    it "raises regardless of whether TrueClass defines the method" do
      proc{true.singleton_method(:foo)}.should raise_error(NameError)
      begin
        def true.foo; end
        proc{true.singleton_method(:foo)}.should raise_error(NameError)
      ensure
        TrueClass.send(:remove_method, :foo)
      end
    end
  end
end