upstream/ipython Files · IPython/utils/tests/test_dir2.py

docs/autogen_shortcuts.py: support Python 3.8...

docs/autogen_shortcuts.py: support Python 3.8 In 64e72a955 (Restore shortcuts in documentation, define identifiers, 2023-01-08), some typing annotations were added to docs/autogen_shortcuts.py using the builtin container type 'list'. This feature is only available starting in Python 3.9 [1], but setup.cfg lists Python 3.8 as the earliest supported Python version. This leads to a failing documentation build in a Python 3.8 virtual environment. Fix this by using the capitalized name 'List' from the 'typing' module to keep Python 3.8 compatibility. [1] https://docs.python.org/3/whatsnew/3.9.html#type-hinting-generics-in-standard-collections

Matthias Bussonnier - - Load All Authors

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             test_dir2.py
        
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      from IPython.utils.dir2 import dir2

      import pytest

      class Base(object):

          x = 1

          z = 23

      def test_base():

          res = dir2(Base())

          assert "x" in res

          assert "z" in res

          assert "y" not in res

          assert "__class__" in res

          assert res.count("x") == 1

          assert res.count("__class__") == 1

      def test_SubClass():

          class SubClass(Base):

              y = 2

          res = dir2(SubClass())

          assert "y" in res

          assert res.count("y") == 1

          assert res.count("x") == 1

      def test_SubClass_with_trait_names_attr():

          # usecase: trait_names is used in a class describing psychological classification

          class SubClass(Base):

              y = 2

              trait_names = 44

          res = dir2(SubClass())

          assert "trait_names" in res

      def test_misbehaving_object_without_trait_names():

          # dir2 shouldn't raise even when objects are dumb and raise

          # something other than AttribteErrors on bad getattr.

          class MisbehavingGetattr:

              def __getattr__(self, attr):

                  raise KeyError("I should be caught")

              def some_method(self):

                  return True

          class SillierWithDir(MisbehavingGetattr):

              def __dir__(self):

                  return ["some_method"]

          for bad_klass in (MisbehavingGetattr, SillierWithDir):

              obj = bad_klass()

              assert obj.some_method()

              with pytest.raises(KeyError):

                  obj.other_method()

              res = dir2(obj)

              assert "some_method" in res

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				from IPython.utils.dir2 import dir2

				import pytest


				class Base(object):
				x = 1
				z = 23


				def test_base():
				res = dir2(Base())
				assert "x" in res
				assert "z" in res
				assert "y" not in res
				assert "__class__" in res
				assert res.count("x") == 1
				assert res.count("__class__") == 1


				def test_SubClass():
				class SubClass(Base):
				y = 2

				res = dir2(SubClass())
				assert "y" in res
				assert res.count("y") == 1
				assert res.count("x") == 1


				def test_SubClass_with_trait_names_attr():
				# usecase: trait_names is used in a class describing psychological classification

				class SubClass(Base):
				y = 2
				trait_names = 44

				res = dir2(SubClass())
				assert "trait_names" in res


				def test_misbehaving_object_without_trait_names():
				# dir2 shouldn't raise even when objects are dumb and raise
				# something other than AttribteErrors on bad getattr.

				class MisbehavingGetattr:
				def __getattr__(self, attr):
				raise KeyError("I should be caught")

				def some_method(self):
				return True

				class SillierWithDir(MisbehavingGetattr):
				def __dir__(self):
				return ["some_method"]

				for bad_klass in (MisbehavingGetattr, SillierWithDir):
				obj = bad_klass()

				assert obj.some_method()

				with pytest.raises(KeyError):
				obj.other_method()

				res = dir2(obj)
				assert "some_method" in res