Removed the Requirement to Install Python and NodeJS (Now Bundled with Borealis)

Dependencies/Python/Lib/test/test_reprlib.py

@@ -0,0 +1,833 @@
+"""
+  Test cases for the repr module
+  Nick Mathewson
+"""
+
+import sys
+import os
+import shutil
+import importlib
+import importlib.util
+import unittest
+import textwrap
+
+from test.support import verbose
+from test.support.os_helper import create_empty_file
+from reprlib import repr as r # Don't shadow builtin repr
+from reprlib import Repr
+from reprlib import recursive_repr
+
+
+def nestedTuple(nesting):
+    t = ()
+    for i in range(nesting):
+        t = (t,)
+    return t
+
+class ReprTests(unittest.TestCase):
+
+    def test_init_kwargs(self):
+        example_kwargs = {
+            "maxlevel": 101,
+            "maxtuple": 102,
+            "maxlist": 103,
+            "maxarray": 104,
+            "maxdict": 105,
+            "maxset": 106,
+            "maxfrozenset": 107,
+            "maxdeque": 108,
+            "maxstring": 109,
+            "maxlong": 110,
+            "maxother": 111,
+            "fillvalue": "x" * 112,
+            "indent": "x" * 113,
+        }
+        r1 = Repr()
+        for attr, val in example_kwargs.items():
+            setattr(r1, attr, val)
+        r2 = Repr(**example_kwargs)
+        for attr in example_kwargs:
+            self.assertEqual(getattr(r1, attr), getattr(r2, attr), msg=attr)
+
+    def test_string(self):
+        eq = self.assertEqual
+        eq(r("abc"), "'abc'")
+        eq(r("abcdefghijklmnop"),"'abcdefghijklmnop'")
+
+        s = "a"*30+"b"*30
+        expected = repr(s)[:13] + "..." + repr(s)[-14:]
+        eq(r(s), expected)
+
+        eq(r("\"'"), repr("\"'"))
+        s = "\""*30+"'"*100
+        expected = repr(s)[:13] + "..." + repr(s)[-14:]
+        eq(r(s), expected)
+
+    def test_tuple(self):
+        eq = self.assertEqual
+        eq(r((1,)), "(1,)")
+
+        t3 = (1, 2, 3)
+        eq(r(t3), "(1, 2, 3)")
+
+        r2 = Repr()
+        r2.maxtuple = 2
+        expected = repr(t3)[:-2] + "...)"
+        eq(r2.repr(t3), expected)
+
+        # modified fillvalue:
+        r3 = Repr()
+        r3.fillvalue = '+++'
+        r3.maxtuple = 2
+        expected = repr(t3)[:-2] + "+++)"
+        eq(r3.repr(t3), expected)
+
+    def test_container(self):
+        from array import array
+        from collections import deque
+
+        eq = self.assertEqual
+        # Tuples give up after 6 elements
+        eq(r(()), "()")
+        eq(r((1,)), "(1,)")
+        eq(r((1, 2, 3)), "(1, 2, 3)")
+        eq(r((1, 2, 3, 4, 5, 6)), "(1, 2, 3, 4, 5, 6)")
+        eq(r((1, 2, 3, 4, 5, 6, 7)), "(1, 2, 3, 4, 5, 6, ...)")
+
+        # Lists give up after 6 as well
+        eq(r([]), "[]")
+        eq(r([1]), "[1]")
+        eq(r([1, 2, 3]), "[1, 2, 3]")
+        eq(r([1, 2, 3, 4, 5, 6]), "[1, 2, 3, 4, 5, 6]")
+        eq(r([1, 2, 3, 4, 5, 6, 7]), "[1, 2, 3, 4, 5, 6, ...]")
+
+        # Sets give up after 6 as well
+        eq(r(set([])), "set()")
+        eq(r(set([1])), "{1}")
+        eq(r(set([1, 2, 3])), "{1, 2, 3}")
+        eq(r(set([1, 2, 3, 4, 5, 6])), "{1, 2, 3, 4, 5, 6}")
+        eq(r(set([1, 2, 3, 4, 5, 6, 7])), "{1, 2, 3, 4, 5, 6, ...}")
+
+        # Frozensets give up after 6 as well
+        eq(r(frozenset([])), "frozenset()")
+        eq(r(frozenset([1])), "frozenset({1})")
+        eq(r(frozenset([1, 2, 3])), "frozenset({1, 2, 3})")
+        eq(r(frozenset([1, 2, 3, 4, 5, 6])), "frozenset({1, 2, 3, 4, 5, 6})")
+        eq(r(frozenset([1, 2, 3, 4, 5, 6, 7])), "frozenset({1, 2, 3, 4, 5, 6, ...})")
+
+        # collections.deque after 6
+        eq(r(deque([1, 2, 3, 4, 5, 6, 7])), "deque([1, 2, 3, 4, 5, 6, ...])")
+
+        # Dictionaries give up after 4.
+        eq(r({}), "{}")
+        d = {'alice': 1, 'bob': 2, 'charles': 3, 'dave': 4}
+        eq(r(d), "{'alice': 1, 'bob': 2, 'charles': 3, 'dave': 4}")
+        d['arthur'] = 1
+        eq(r(d), "{'alice': 1, 'arthur': 1, 'bob': 2, 'charles': 3, ...}")
+
+        # array.array after 5.
+        eq(r(array('i')), "array('i')")
+        eq(r(array('i', [1])), "array('i', [1])")
+        eq(r(array('i', [1, 2])), "array('i', [1, 2])")
+        eq(r(array('i', [1, 2, 3])), "array('i', [1, 2, 3])")
+        eq(r(array('i', [1, 2, 3, 4])), "array('i', [1, 2, 3, 4])")
+        eq(r(array('i', [1, 2, 3, 4, 5])), "array('i', [1, 2, 3, 4, 5])")
+        eq(r(array('i', [1, 2, 3, 4, 5, 6])),
+                   "array('i', [1, 2, 3, 4, 5, ...])")
+
+    def test_set_literal(self):
+        eq = self.assertEqual
+        eq(r({1}), "{1}")
+        eq(r({1, 2, 3}), "{1, 2, 3}")
+        eq(r({1, 2, 3, 4, 5, 6}), "{1, 2, 3, 4, 5, 6}")
+        eq(r({1, 2, 3, 4, 5, 6, 7}), "{1, 2, 3, 4, 5, 6, ...}")
+
+    def test_frozenset(self):
+        eq = self.assertEqual
+        eq(r(frozenset({1})), "frozenset({1})")
+        eq(r(frozenset({1, 2, 3})), "frozenset({1, 2, 3})")
+        eq(r(frozenset({1, 2, 3, 4, 5, 6})), "frozenset({1, 2, 3, 4, 5, 6})")
+        eq(r(frozenset({1, 2, 3, 4, 5, 6, 7})), "frozenset({1, 2, 3, 4, 5, 6, ...})")
+
+    def test_numbers(self):
+        eq = self.assertEqual
+        eq(r(123), repr(123))
+        eq(r(123), repr(123))
+        eq(r(1.0/3), repr(1.0/3))
+
+        n = 10**100
+        expected = repr(n)[:18] + "..." + repr(n)[-19:]
+        eq(r(n), expected)
+
+    def test_instance(self):
+        eq = self.assertEqual
+        i1 = ClassWithRepr("a")
+        eq(r(i1), repr(i1))
+
+        i2 = ClassWithRepr("x"*1000)
+        expected = repr(i2)[:13] + "..." + repr(i2)[-14:]
+        eq(r(i2), expected)
+
+        i3 = ClassWithFailingRepr()
+        eq(r(i3), ("<ClassWithFailingRepr instance at %#x>"%id(i3)))
+
+        s = r(ClassWithFailingRepr)
+        self.assertTrue(s.startswith("<class "))
+        self.assertTrue(s.endswith(">"))
+        self.assertIn(s.find("..."), [12, 13])
+
+    def test_lambda(self):
+        r = repr(lambda x: x)
+        self.assertTrue(r.startswith("<function ReprTests.test_lambda.<locals>.<lambda"), r)
+        # XXX anonymous functions?  see func_repr
+
+    def test_builtin_function(self):
+        eq = self.assertEqual
+        # Functions
+        eq(repr(hash), '<built-in function hash>')
+        # Methods
+        self.assertTrue(repr(''.split).startswith(
+            '<built-in method split of str object at 0x'))
+
+    def test_range(self):
+        eq = self.assertEqual
+        eq(repr(range(1)), 'range(0, 1)')
+        eq(repr(range(1, 2)), 'range(1, 2)')
+        eq(repr(range(1, 4, 3)), 'range(1, 4, 3)')
+
+    def test_nesting(self):
+        eq = self.assertEqual
+        # everything is meant to give up after 6 levels.
+        eq(r([[[[[[[]]]]]]]), "[[[[[[[]]]]]]]")
+        eq(r([[[[[[[[]]]]]]]]), "[[[[[[[...]]]]]]]")
+
+        eq(r(nestedTuple(6)), "(((((((),),),),),),)")
+        eq(r(nestedTuple(7)), "(((((((...),),),),),),)")
+
+        eq(r({ nestedTuple(5) : nestedTuple(5) }),
+           "{((((((),),),),),): ((((((),),),),),)}")
+        eq(r({ nestedTuple(6) : nestedTuple(6) }),
+           "{((((((...),),),),),): ((((((...),),),),),)}")
+
+        eq(r([[[[[[{}]]]]]]), "[[[[[[{}]]]]]]")
+        eq(r([[[[[[[{}]]]]]]]), "[[[[[[[...]]]]]]]")
+
+    def test_cell(self):
+        def get_cell():
+            x = 42
+            def inner():
+                return x
+            return inner
+        x = get_cell().__closure__[0]
+        self.assertRegex(repr(x), r'<cell at 0x[0-9A-Fa-f]+: '
+                                  r'int object at 0x[0-9A-Fa-f]+>')
+        self.assertRegex(r(x), r'<cell at 0x.*\.\.\..*>')
+
+    def test_descriptors(self):
+        eq = self.assertEqual
+        # method descriptors
+        eq(repr(dict.items), "<method 'items' of 'dict' objects>")
+        # XXX member descriptors
+        # XXX attribute descriptors
+        # XXX slot descriptors
+        # static and class methods
+        class C:
+            def foo(cls): pass
+        x = staticmethod(C.foo)
+        self.assertEqual(repr(x), f'<staticmethod({C.foo!r})>')
+        x = classmethod(C.foo)
+        self.assertEqual(repr(x), f'<classmethod({C.foo!r})>')
+
+    def test_unsortable(self):
+        # Repr.repr() used to call sorted() on sets, frozensets and dicts
+        # without taking into account that not all objects are comparable
+        x = set([1j, 2j, 3j])
+        y = frozenset(x)
+        z = {1j: 1, 2j: 2}
+        r(x)
+        r(y)
+        r(z)
+
+    def test_valid_indent(self):
+        test_cases = [
+            {
+                'object': (),
+                'tests': (
+                    (dict(indent=None), '()'),
+                    (dict(indent=False), '()'),
+                    (dict(indent=True), '()'),
+                    (dict(indent=0), '()'),
+                    (dict(indent=1), '()'),
+                    (dict(indent=4), '()'),
+                    (dict(indent=4, maxlevel=2), '()'),
+                    (dict(indent=''), '()'),
+                    (dict(indent='-->'), '()'),
+                    (dict(indent='....'), '()'),
+                ),
+            },
+            {
+                'object': '',
+                'tests': (
+                    (dict(indent=None), "''"),
+                    (dict(indent=False), "''"),
+                    (dict(indent=True), "''"),
+                    (dict(indent=0), "''"),
+                    (dict(indent=1), "''"),
+                    (dict(indent=4), "''"),
+                    (dict(indent=4, maxlevel=2), "''"),
+                    (dict(indent=''), "''"),
+                    (dict(indent='-->'), "''"),
+                    (dict(indent='....'), "''"),
+                ),
+            },
+            {
+                'object': [1, 'spam', {'eggs': True, 'ham': []}],
+                'tests': (
+                    (dict(indent=None), '''\
+                        [1, 'spam', {'eggs': True, 'ham': []}]'''),
+                    (dict(indent=False), '''\
+                        [
+                        1,
+                        'spam',
+                        {
+                        'eggs': True,
+                        'ham': [],
+                        },
+                        ]'''),
+                    (dict(indent=True), '''\
+                        [
+                         1,
+                         'spam',
+                         {
+                          'eggs': True,
+                          'ham': [],
+                         },
+                        ]'''),
+                    (dict(indent=0), '''\
+                        [
+                        1,
+                        'spam',
+                        {
+                        'eggs': True,
+                        'ham': [],
+                        },
+                        ]'''),
+                    (dict(indent=1), '''\
+                        [
+                         1,
+                         'spam',
+                         {
+                          'eggs': True,
+                          'ham': [],
+                         },
+                        ]'''),
+                    (dict(indent=4), '''\
+                        [
+                            1,
+                            'spam',
+                            {
+                                'eggs': True,
+                                'ham': [],
+                            },
+                        ]'''),
+                    (dict(indent=4, maxlevel=2), '''\
+                        [
+                            1,
+                            'spam',
+                            {
+                                'eggs': True,
+                                'ham': [],
+                            },
+                        ]'''),
+                    (dict(indent=''), '''\
+                        [
+                        1,
+                        'spam',
+                        {
+                        'eggs': True,
+                        'ham': [],
+                        },
+                        ]'''),
+                    (dict(indent='-->'), '''\
+                        [
+                        -->1,
+                        -->'spam',
+                        -->{
+                        -->-->'eggs': True,
+                        -->-->'ham': [],
+                        -->},
+                        ]'''),
+                    (dict(indent='....'), '''\
+                        [
+                        ....1,
+                        ....'spam',
+                        ....{
+                        ........'eggs': True,
+                        ........'ham': [],
+                        ....},
+                        ]'''),
+                ),
+            },
+            {
+                'object': {
+                    1: 'two',
+                    b'three': [
+                        (4.5, 6.7),
+                        [set((8, 9)), frozenset((10, 11))],
+                    ],
+                },
+                'tests': (
+                    (dict(indent=None), '''\
+                        {1: 'two', b'three': [(4.5, 6.7), [{8, 9}, frozenset({10, 11})]]}'''),
+                    (dict(indent=False), '''\
+                        {
+                        1: 'two',
+                        b'three': [
+                        (
+                        4.5,
+                        6.7,
+                        ),
+                        [
+                        {
+                        8,
+                        9,
+                        },
+                        frozenset({
+                        10,
+                        11,
+                        }),
+                        ],
+                        ],
+                        }'''),
+                    (dict(indent=True), '''\
+                        {
+                         1: 'two',
+                         b'three': [
+                          (
+                           4.5,
+                           6.7,
+                          ),
+                          [
+                           {
+                            8,
+                            9,
+                           },
+                           frozenset({
+                            10,
+                            11,
+                           }),
+                          ],
+                         ],
+                        }'''),
+                    (dict(indent=0), '''\
+                        {
+                        1: 'two',
+                        b'three': [
+                        (
+                        4.5,
+                        6.7,
+                        ),
+                        [
+                        {
+                        8,
+                        9,
+                        },
+                        frozenset({
+                        10,
+                        11,
+                        }),
+                        ],
+                        ],
+                        }'''),
+                    (dict(indent=1), '''\
+                        {
+                         1: 'two',
+                         b'three': [
+                          (
+                           4.5,
+                           6.7,
+                          ),
+                          [
+                           {
+                            8,
+                            9,
+                           },
+                           frozenset({
+                            10,
+                            11,
+                           }),
+                          ],
+                         ],
+                        }'''),
+                    (dict(indent=4), '''\
+                        {
+                            1: 'two',
+                            b'three': [
+                                (
+                                    4.5,
+                                    6.7,
+                                ),
+                                [
+                                    {
+                                        8,
+                                        9,
+                                    },
+                                    frozenset({
+                                        10,
+                                        11,
+                                    }),
+                                ],
+                            ],
+                        }'''),
+                    (dict(indent=4, maxlevel=2), '''\
+                        {
+                            1: 'two',
+                            b'three': [
+                                (...),
+                                [...],
+                            ],
+                        }'''),
+                    (dict(indent=''), '''\
+                        {
+                        1: 'two',
+                        b'three': [
+                        (
+                        4.5,
+                        6.7,
+                        ),
+                        [
+                        {
+                        8,
+                        9,
+                        },
+                        frozenset({
+                        10,
+                        11,
+                        }),
+                        ],
+                        ],
+                        }'''),
+                    (dict(indent='-->'), '''\
+                        {
+                        -->1: 'two',
+                        -->b'three': [
+                        -->-->(
+                        -->-->-->4.5,
+                        -->-->-->6.7,
+                        -->-->),
+                        -->-->[
+                        -->-->-->{
+                        -->-->-->-->8,
+                        -->-->-->-->9,
+                        -->-->-->},
+                        -->-->-->frozenset({
+                        -->-->-->-->10,
+                        -->-->-->-->11,
+                        -->-->-->}),
+                        -->-->],
+                        -->],
+                        }'''),
+                    (dict(indent='....'), '''\
+                        {
+                        ....1: 'two',
+                        ....b'three': [
+                        ........(
+                        ............4.5,
+                        ............6.7,
+                        ........),
+                        ........[
+                        ............{
+                        ................8,
+                        ................9,
+                        ............},
+                        ............frozenset({
+                        ................10,
+                        ................11,
+                        ............}),
+                        ........],
+                        ....],
+                        }'''),
+                ),
+            },
+        ]
+        for test_case in test_cases:
+            with self.subTest(test_object=test_case['object']):
+                for repr_settings, expected_repr in test_case['tests']:
+                    with self.subTest(repr_settings=repr_settings):
+                        r = Repr()
+                        for attribute, value in repr_settings.items():
+                            setattr(r, attribute, value)
+                        resulting_repr = r.repr(test_case['object'])
+                        expected_repr = textwrap.dedent(expected_repr)
+                        self.assertEqual(resulting_repr, expected_repr)
+
+    def test_invalid_indent(self):
+        test_object = [1, 'spam', {'eggs': True, 'ham': []}]
+        test_cases = [
+            (-1, (ValueError, '[Nn]egative|[Pp]ositive')),
+            (-4, (ValueError, '[Nn]egative|[Pp]ositive')),
+            ((), (TypeError, None)),
+            ([], (TypeError, None)),
+            ((4,), (TypeError, None)),
+            ([4,], (TypeError, None)),
+            (object(), (TypeError, None)),
+        ]
+        for indent, (expected_error, expected_msg) in test_cases:
+            with self.subTest(indent=indent):
+                r = Repr()
+                r.indent = indent
+                expected_msg = expected_msg or f'{type(indent)}'
+                with self.assertRaisesRegex(expected_error, expected_msg):
+                    r.repr(test_object)
+
+    def test_shadowed_stdlib_array(self):
+        # Issue #113570: repr() should not be fooled by an array
+        class array:
+            def __repr__(self):
+                return "not array.array"
+
+        self.assertEqual(r(array()), "not array.array")
+
+    def test_shadowed_builtin(self):
+        # Issue #113570: repr() should not be fooled
+        # by a shadowed builtin function
+        class list:
+            def __repr__(self):
+                return "not builtins.list"
+
+        self.assertEqual(r(list()), "not builtins.list")
+
+    def test_custom_repr(self):
+        class MyRepr(Repr):
+
+            def repr_TextIOWrapper(self, obj, level):
+                if obj.name in {'<stdin>', '<stdout>', '<stderr>'}:
+                    return obj.name
+                return repr(obj)
+
+        aRepr = MyRepr()
+        self.assertEqual(aRepr.repr(sys.stdin), "<stdin>")
+
+    def test_custom_repr_class_with_spaces(self):
+        class TypeWithSpaces:
+            pass
+
+        t = TypeWithSpaces()
+        type(t).__name__ = "type with spaces"
+        self.assertEqual(type(t).__name__, "type with spaces")
+
+        class MyRepr(Repr):
+            def repr_type_with_spaces(self, obj, level):
+                return "Type With Spaces"
+
+
+        aRepr = MyRepr()
+        self.assertEqual(aRepr.repr(t), "Type With Spaces")
+
+def write_file(path, text):
+    with open(path, 'w', encoding='ASCII') as fp:
+        fp.write(text)
+
+class LongReprTest(unittest.TestCase):
+    longname = 'areallylongpackageandmodulenametotestreprtruncation'
+
+    def setUp(self):
+        self.pkgname = os.path.join(self.longname)
+        self.subpkgname = os.path.join(self.longname, self.longname)
+        # Make the package and subpackage
+        shutil.rmtree(self.pkgname, ignore_errors=True)
+        os.mkdir(self.pkgname)
+        create_empty_file(os.path.join(self.pkgname, '__init__.py'))
+        shutil.rmtree(self.subpkgname, ignore_errors=True)
+        os.mkdir(self.subpkgname)
+        create_empty_file(os.path.join(self.subpkgname, '__init__.py'))
+        # Remember where we are
+        self.here = os.getcwd()
+        sys.path.insert(0, self.here)
+        # When regrtest is run with its -j option, this command alone is not
+        # enough.
+        importlib.invalidate_caches()
+
+    def tearDown(self):
+        actions = []
+        for dirpath, dirnames, filenames in os.walk(self.pkgname):
+            for name in dirnames + filenames:
+                actions.append(os.path.join(dirpath, name))
+        actions.append(self.pkgname)
+        actions.sort()
+        actions.reverse()
+        for p in actions:
+            if os.path.isdir(p):
+                os.rmdir(p)
+            else:
+                os.remove(p)
+        del sys.path[0]
+
+    def _check_path_limitations(self, module_name):
+        # base directory
+        source_path_len = len(self.here)
+        # a path separator + `longname` (twice)
+        source_path_len += 2 * (len(self.longname) + 1)
+        # a path separator + `module_name` + ".py"
+        source_path_len += len(module_name) + 1 + len(".py")
+        cached_path_len = (source_path_len +
+            len(importlib.util.cache_from_source("x.py")) - len("x.py"))
+        if os.name == 'nt' and cached_path_len >= 258:
+            # Under Windows, the max path len is 260 including C's terminating
+            # NUL character.
+            # (see http://msdn.microsoft.com/en-us/library/windows/desktop/aa365247%28v=vs.85%29.aspx#maxpath)
+            self.skipTest("test paths too long (%d characters) for Windows' 260 character limit"
+                          % cached_path_len)
+        elif os.name == 'nt' and verbose:
+            print("cached_path_len =", cached_path_len)
+
+    def test_module(self):
+        self.maxDiff = None
+        self._check_path_limitations(self.pkgname)
+        create_empty_file(os.path.join(self.subpkgname, self.pkgname + '.py'))
+        importlib.invalidate_caches()
+        from areallylongpackageandmodulenametotestreprtruncation.areallylongpackageandmodulenametotestreprtruncation import areallylongpackageandmodulenametotestreprtruncation
+        module = areallylongpackageandmodulenametotestreprtruncation
+        self.assertEqual(repr(module), "<module %r from %r>" % (module.__name__, module.__file__))
+        self.assertEqual(repr(sys), "<module 'sys' (built-in)>")
+
+    def test_type(self):
+        self._check_path_limitations('foo')
+        eq = self.assertEqual
+        write_file(os.path.join(self.subpkgname, 'foo.py'), '''\
+class foo(object):
+    pass
+''')
+        importlib.invalidate_caches()
+        from areallylongpackageandmodulenametotestreprtruncation.areallylongpackageandmodulenametotestreprtruncation import foo
+        eq(repr(foo.foo),
+               "<class '%s.foo'>" % foo.__name__)
+
+    @unittest.skip('need a suitable object')
+    def test_object(self):
+        # XXX Test the repr of a type with a really long tp_name but with no
+        # tp_repr.  WIBNI we had ::Inline? :)
+        pass
+
+    def test_class(self):
+        self._check_path_limitations('bar')
+        write_file(os.path.join(self.subpkgname, 'bar.py'), '''\
+class bar:
+    pass
+''')
+        importlib.invalidate_caches()
+        from areallylongpackageandmodulenametotestreprtruncation.areallylongpackageandmodulenametotestreprtruncation import bar
+        # Module name may be prefixed with "test.", depending on how run.
+        self.assertEqual(repr(bar.bar), "<class '%s.bar'>" % bar.__name__)
+
+    def test_instance(self):
+        self._check_path_limitations('baz')
+        write_file(os.path.join(self.subpkgname, 'baz.py'), '''\
+class baz:
+    pass
+''')
+        importlib.invalidate_caches()
+        from areallylongpackageandmodulenametotestreprtruncation.areallylongpackageandmodulenametotestreprtruncation import baz
+        ibaz = baz.baz()
+        self.assertTrue(repr(ibaz).startswith(
+            "<%s.baz object at 0x" % baz.__name__))
+
+    def test_method(self):
+        self._check_path_limitations('qux')
+        eq = self.assertEqual
+        write_file(os.path.join(self.subpkgname, 'qux.py'), '''\
+class aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa:
+    def amethod(self): pass
+''')
+        importlib.invalidate_caches()
+        from areallylongpackageandmodulenametotestreprtruncation.areallylongpackageandmodulenametotestreprtruncation import qux
+        # Unbound methods first
+        r = repr(qux.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa.amethod)
+        self.assertTrue(r.startswith('<function aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa.amethod'), r)
+        # Bound method next
+        iqux = qux.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa()
+        r = repr(iqux.amethod)
+        self.assertTrue(r.startswith(
+            '<bound method aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa.amethod of <%s.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa object at 0x' \
+            % (qux.__name__,) ), r)
+
+    @unittest.skip('needs a built-in function with a really long name')
+    def test_builtin_function(self):
+        # XXX test built-in functions and methods with really long names
+        pass
+
+class ClassWithRepr:
+    def __init__(self, s):
+        self.s = s
+    def __repr__(self):
+        return "ClassWithRepr(%r)" % self.s
+
+
+class ClassWithFailingRepr:
+    def __repr__(self):
+        raise Exception("This should be caught by Repr.repr_instance")
+
+class MyContainer:
+    'Helper class for TestRecursiveRepr'
+    def __init__(self, values):
+        self.values = list(values)
+    def append(self, value):
+        self.values.append(value)
+    @recursive_repr()
+    def __repr__(self):
+        return '<' + ', '.join(map(str, self.values)) + '>'
+
+class MyContainer2(MyContainer):
+    @recursive_repr('+++')
+    def __repr__(self):
+        return '<' + ', '.join(map(str, self.values)) + '>'
+
+class MyContainer3:
+    def __repr__(self):
+        'Test document content'
+        pass
+    wrapped = __repr__
+    wrapper = recursive_repr()(wrapped)
+
+class TestRecursiveRepr(unittest.TestCase):
+    def test_recursive_repr(self):
+        m = MyContainer(list('abcde'))
+        m.append(m)
+        m.append('x')
+        m.append(m)
+        self.assertEqual(repr(m), '<a, b, c, d, e, ..., x, ...>')
+        m = MyContainer2(list('abcde'))
+        m.append(m)
+        m.append('x')
+        m.append(m)
+        self.assertEqual(repr(m), '<a, b, c, d, e, +++, x, +++>')
+
+    def test_assigned_attributes(self):
+        from functools import WRAPPER_ASSIGNMENTS as assigned
+        wrapped = MyContainer3.wrapped
+        wrapper = MyContainer3.wrapper
+        for name in assigned:
+            self.assertIs(getattr(wrapper, name), getattr(wrapped, name))
+
+    def test__wrapped__(self):
+        class X:
+            def __repr__(self):
+                return 'X()'
+            f = __repr__ # save reference to check it later
+            __repr__ = recursive_repr()(__repr__)
+
+        self.assertIs(X.f, X.__repr__.__wrapped__)
+
+    def test__type_params__(self):
+        class My:
+            @recursive_repr()
+            def __repr__[T: str](self, default: T = '') -> str:
+                return default
+
+        type_params = My().__repr__.__type_params__
+        self.assertEqual(len(type_params), 1)
+        self.assertEqual(type_params[0].__name__, 'T')
+        self.assertEqual(type_params[0].__bound__, str)
+
+if __name__ == "__main__":
+    unittest.main()