Ruby class member scope and self

Please considerCode

Class Test
Private
Def self. Test
Puts 'arst'
End
Def Test
Puts 'arst'
End
Class <self
Def Test2
Puts 'arst'
End
Private
Def test3
Puts 'arst'
End
End
End

Test. Test
Test. Test2
Begin
Test. test3
Rescue standarderror => E
P E
End
Begin
Test. New. Test
Rescue standarderror => E
P E
End

Result:

Arst
Arst
# <Nomethoderror: Private method 'test3' called for test: Class>
# <Nomethoderror: Private method 'test' called for # <test: 0x2c28060>

Class MethodTest. TestIs a non-scope ModifierPrivateThe possible cause isSelf.OnlyClass <selfSyntax sugar.