pyodide/packages/wrapt/test_wrapt.py

from pyodide_build.testing import run_in_pyodide


@run_in_pyodide(packages=["wrapt"])
def test_wrapt():
    import inspect
    import unittest

    import wrapt

    @wrapt.decorator
    def passthru_decorator(wrapped, instance, args, kwargs):
        return wrapped(*args, **kwargs)

    def function1(arg):
        """documentation"""
        return arg

    function1o = function1
    function1d = passthru_decorator(function1)
    assert function1d is not function1o

    class TestNamingFunction(unittest.TestCase):
        def test_object_name(self):
            # Test preservation of function __name__ attribute.

            self.assertEqual(function1d.__name__, function1o.__name__)

        def test_object_qualname(self):
            # Test preservation of function __qualname__ attribute.

            try:
                __qualname__ = function1o.__qualname__
            except AttributeError:
                pass
            else:
                self.assertEqual(function1d.__qualname__, __qualname__)

        def test_module_name(self):
            # Test preservation of function __module__ attribute.

            self.assertEqual(function1d.__module__, __name__)

        def test_doc_string(self):
            # Test preservation of function __doc__ attribute.

            self.assertEqual(function1d.__doc__, function1o.__doc__)

        def test_argspec(self):
            # Test preservation of function argument specification.

            function1o_argspec = inspect.getargspec(function1o)
            function1d_argspec = inspect.getargspec(function1d)
            self.assertEqual(function1o_argspec, function1d_argspec)

        def test_isinstance(self):
            # Test preservation of isinstance() checks.

            self.assertTrue(isinstance(function1d, type(function1o)))

    class TestCallingFunction(unittest.TestCase):
        def test_call_function(self):
            _args = (1, 2)
            _kwargs = {"one": 1, "two": 2}

            @wrapt.decorator
            def _decorator(wrapped, instance, args, kwargs):
                self.assertEqual(instance, None)
                self.assertEqual(args, _args)
                self.assertEqual(kwargs, _kwargs)
                return wrapped(*args, **kwargs)

            @_decorator
            def _function(*args, **kwargs):
                return args, kwargs

            result = _function(*_args, **_kwargs)

            self.assertEqual(result, (_args, _kwargs))

    # Run tests
    with unittest.TestCase().assertRaisesRegex(SystemExit, "False"):
        unittest.main()