Method test_builtin_no_child

Lib/test/test_pydoc/test_pydoc.py:658–684

Tests help on builtin object which have no child classes. When running help() on a builtin class which has no child classes, it should not contain any "Built-in subclasses" section. For example: >>> help(ZeroDivisionError) Help on class ZeroDivisionError in module

(self)

        self.assertNotIn('ZeroDivisionError', text)

    def test_builtin_no_child(self):
        """Tests help on builtin object which have no child classes.

        When running help() on a builtin class which has no child classes, it
        should not contain any "Built-in subclasses" section. For example:

        >>> help(ZeroDivisionError)

        Help on class ZeroDivisionError in module builtins:

        class ZeroDivisionError(ArithmeticError)
         |  Second argument to a division or modulo operation was zero.
         |
         |  Method resolution order:
         |      ZeroDivisionError
         |      ArithmeticError
         |      Exception
         |      BaseException
         |      object
         |
         |  Methods defined here:
         ...
        """
        doc = pydoc.TextDoc()
        text = doc.docclass(ZeroDivisionError)
        # Testing that the subclasses section does not appear
        self.assertNotIn('Built-in subclasses', text)

    def test_builtin_on_metaclasses(self):
        """Tests help on metaclasses.