nuitka-mirror/tests/basics/ReferencingTest.py

#     Copyright 2025, Kay Hayen, mailto:kay.hayen@gmail.com find license text at end of file


"""Reference counting tests.

These contain functions that do specific things, where we have a suspect
that references may be lost or corrupted. Executing them repeatedly and
checking the reference count is how they are used.
"""

# While we use that for comparison code, no need to compile that.
# nuitka-project: --nofollow-import-to=nuitka

import os
import sys

# Find nuitka package relative to us.
sys.path.insert(
    0,
    os.path.normpath(
        os.path.join(os.path.dirname(os.path.abspath(__file__)), "..", "..")
    ),
)
from nuitka.tools.testing.Common import executeReferenceChecked, sync_iterate

# isort:start

# Tests do all bad things:
# pylint: disable=misplaced-bare-raise,raising-bad-type,reimported,undefined-variable
# pylint: disable=broad-except,eval-used,redefined-outer-name,unused-argument,unused-variable
# pylint: disable=attribute-defined-outside-init,bare-except,lost-exception,pointless-statement
# pylint: disable=exec-used,global-statement,invalid-name,not-callable,super-init-not-called

x = 17


# Just a function return a constant. Functions don't become any smaller. Let's
# get that right.
def simpleFunction1():
    return 1


# Do a bit of math with a local variable, assigning to its value and then doing
# an overwrite of that, trying that math again. This should cover local access
# a bit.
def simpleFunction2():
    y = 3 * x
    y = 3

    return x * 2 * y


# A local function is being returned. This covers creation of local functions
# and their release. No closure variables involved yet.
def simpleFunction3():
    def contained():
        return x

    return contained


# Again, local function being return, but this time with local variable taken
# as a closure. We use value from defaulted argument, so it cannot be replaced.
def simpleFunction4(a=1):
    y = a

    def contained():
        return y

    return contained


# Default argument and building a list as local variables. Also return them,
# so they are not optimized away.
def simpleFunction5(a=2):
    c = 1
    f = [a, a + c]

    return c, f


def simpleFunction6():
    for _b in range(6):
        pass

    for _c in (1, 2, 3, 4, 5, 6):
        pass


def simpleFunction7(b=1):
    for _b in range(6):
        pass


def simpleFunction8():
    c = []
    c.append(x)


def simpleFunction9(a=1 * 2):
    if a == a:
        pass


u = None


def simpleFunction10(a=1 * 2):
    x = [u for u in range(8)]


def simpleFunction11():
    f = 1

    while f < 8:
        f += 1


v = None


def simpleFunction12():
    a = [(u, v) for (u, v) in zip(range(8), range(8))]

    return a


def cond():
    return 1


def simpleFunction13(a=1 * 2):
    pass


def simpleFunction14p(x):
    try:
        simpleFunction14p(1, 1)  # pylint: disable=too-many-function-args
    except TypeError as _e:
        pass

    try:
        simpleFunction14p(1, 1)  # pylint: disable=too-many-function-args
    except TypeError:
        pass


def simpleFunction14():
    simpleFunction14p(3)


def simpleFunction15p(x):
    try:
        try:
            x += 1
        finally:
            try:
                x *= 1
            finally:
                _z = 1
    except:
        pass


def simpleFunction15():
    simpleFunction15p([1])


def simpleFunction16():
    class EmptyClass:
        pass

    return EmptyClass


def simpleFunction17():
    class EmptyObjectClass(object):
        pass

    return EmptyObjectClass()


def simpleFunction18():
    closured = 1

    class NonEmptyClass:
        def __init__(self, a, b):
            self.a = a
            self.b = b

        inside = closured

    return NonEmptyClass(133, 135)


def simpleFunction19():
    lam = lambda l: l + 1

    return lam(9), lam


def simpleFunction20():
    try:
        a = []
        a[1]
    except IndexError as _e:
        pass


def simpleFunction21():
    class EmptyBaseClass:
        def base(self):
            return 3

    class EmptyObjectClass(EmptyBaseClass):
        pass

    result = EmptyObjectClass()

    c = result.base()

    return result, c


def simpleFunction22():
    return True is False and False is not None


def simpleFunction23():
    not 2


def simpleFunction24p(x):
    pass


def simpleFunction24():
    simpleFunction24p(x=3)


def simpleFunction25():
    class X:
        f = 1

    def inplace_adder(b):
        X.f += b

    return inplace_adder(6**8)


def simpleFunction26():
    class X:
        f = [5]

    def inplace_adder(b):
        X.f += b

    return inplace_adder([1, 2])


def simpleFunction27():
    a = {"g": 8}

    def inplace_adder(b):
        a["g"] += b

    return inplace_adder(3)


def simpleFunction28():
    a = {"g": [8], "h": 2}

    def inplace_adder(b):
        a["g"] += b

    return inplace_adder([3, 5])


def simpleFunction29():
    return "3" in "7"


def simpleFunction30():
    def generatorFunction():
        yield 1
        yield 2
        yield 3


def simpleFunction31():
    def generatorFunction():
        yield 1
        yield 2
        yield 3

    a = []

    for y in generatorFunction():
        a.append(y)

    for z in generatorFunction():
        a.append(z)


def simpleFunction32():
    def generatorFunction():
        yield 1

    gen = generatorFunction()
    next(gen)


def simpleFunction33():
    def generatorFunction():
        a = 1

        yield a

    a = []

    for y in generatorFunction():
        a.append(y)


def simpleFunction34():
    try:
        raise ValueError
    except:
        pass


def simpleFunction35():
    try:
        raise ValueError(1, 2, 3)
    except:
        pass


def simpleFunction36():
    try:
        raise (TypeError, (3, x, x, x))
    except TypeError:
        pass


def simpleFunction37():
    l = [1, 2, 3]

    try:
        _a, _b = l
    except ValueError:
        pass


def simpleFunction38():
    class Base:
        pass

    class Parent(Base):
        pass


def simpleFunction39():
    class Parent(object):
        pass


def simpleFunction40():
    def myGenerator():
        yield 1

    myGenerator()


def simpleFunction41():
    a = b = 2

    return a, b


def simpleFunction42():
    a = b = 2 * x

    return a, b


def simpleFunction43():
    class D:
        pass

    a = D()

    a.b = 1


def simpleFunction47():
    def reRaisingFunction():
        def raisingFunction():
            raise ValueError(3)

        def reRaiser():
            raise

        try:
            raisingFunction()
        except:
            reRaiser()

    try:
        reRaisingFunction()
    except:
        pass


def simpleFunction48():
    class BlockExceptions:
        def __enter__(self):
            pass

        def __exit__(self, exc, val, tb):
            return True

    with BlockExceptions():
        raise ValueError()


template = "lala %s lala"


def simpleFunction49():
    c = 3
    d = 4

    a = x, y = b, e = (c, d)

    return a, y, b, e


b = range(10)


def simpleFunction50():
    def getF():
        def f():
            for i in b:
                yield i

        return f

    f = getF()

    for x in range(2):
        _r = list(f())


def simpleFunction51():
    g = (x for x in range(9))

    try:
        g.throw(ValueError, 9)
    except ValueError as _e:
        pass


def simpleFunction52():
    g = (x for x in range(9))

    try:
        g.throw(ValueError(9))
    except ValueError as _e:
        pass


def simpleFunction53():
    g = (x for x in range(9))

    try:
        g.send(9)
    except TypeError as _e:
        pass


def simpleFunction54():
    g = (x for x in range(9))
    next(g)

    try:
        g.send(9)
    except TypeError as _e:
        pass


def simpleFunction55():
    g = (x for x in range(9))

    try:
        g.close()
    except ValueError as _e:
        pass


def simpleFunction56():
    """Throw into finished generator."""
    g = (x for x in range(9))

    list(g)

    try:
        g.throw(ValueError(9))
    except ValueError as _e:
        pass


def simpleFunction60():
    x = 1
    y = 2

    def f(a=x, b=y):
        return a, b

    f()
    f(2)
    f(3, 4)


def simpleFunction61():
    a = 3
    b = 5

    try:
        a = a * 2

        return a
    finally:
        a / b


def simpleFunction62():
    a = 3
    b = 5

    try:
        a = a * 2

        return a
    finally:
        return a / b


class X:
    def __del__(self):
        # Super used to reference leak.
        x = super()

        raise ValueError(1)


def simpleFunction63():
    def superUser():
        X()

    try:
        superUser()
    except Exception:
        pass


def simpleFunction64():
    x = 2
    y = 3
    z = eval("x * y")

    return z


def simpleFunction65():
    import array

    a = array.array("b", b"")
    assert a == eval(repr(a), {"array": array.array})

    d = {"x": 2, "y": 3}

    z = eval(repr(d), d)

    return z


def simpleFunction66():
    import types

    return type(simpleFunction65) == types.FunctionType


def simpleFunction67():
    length = 100000
    pattern = "1234567890\00\01\02\03\04\05\06"

    q, r = divmod(length, len(pattern))
    test_string = pattern * q + pattern[:r]

    return test_string


def simpleFunction68():
    from random import randrange

    x = randrange(18)


def simpleFunction69():
    pools = [tuple()]
    g = ((len(pool) == 0,) for pool in pools)
    next(g)


def simpleFunction70():
    def gen():
        try:
            undefined_yyy
        except Exception:
            pass

        yield sys.exc_info()

    try:
        undefined_xxx
    except Exception:
        return list(gen())


def simpleFunction71():
    try:
        undefined_global
    except Exception:
        try:
            try:
                raise
            finally:
                undefined_global
        except Exception:
            pass


def simpleFunction72():
    try:
        for _i in range(10):
            try:
                undefined_global
            finally:
                break
    except Exception:
        pass


def simpleFunction73():
    for _i in range(10):
        try:
            undefined_global
        finally:
            return 7


def simpleFunction74():
    import os  # @Reimport

    return os


def simpleFunction75():
    def raising_gen():
        try:
            raise TypeError
        except TypeError:
            yield

    g = raising_gen()
    next(g)

    try:
        g.throw(RuntimeError())
    except RuntimeError:
        pass


def simpleFunction76():
    class MyException(Exception):
        def __init__(self, obj):
            self.obj = obj

    class MyObj:
        pass

    def inner_raising_func():
        raise MyException(MyObj())

    try:
        inner_raising_func()
    except MyException:
        try:
            try:
                raise
            finally:
                raise
        except MyException:
            pass


class weird_str(str):
    def __getitem__(self, index):
        return weird_str(str.__getitem__(self, index))


def simpleFunction77():
    return filter(lambda x: x >= "33", weird_str("1234"))


def simpleFunction78():
    a = "x = 2"
    exec(a)


def simpleFunction79():
    "some doc"

    simpleFunction79.__doc__ = simpleFunction79.__doc__.replace("doc", "dok")
    simpleFunction79.__doc__ += " and more" + simpleFunction79.__name__


def simpleFunction80():
    "some doc"

    del simpleFunction80.__doc__


def simpleFunction81():
    def f():
        yield 1
        j

    j = 1
    x = list(f())


def simpleFunction82():
    def f():
        yield 1
        j

    j = 1
    x = f.__doc__


def simpleFunction83():
    x = list(range(7))
    x[2] = 5

    j = 3
    x += [h * 2 for h in range(j)]


def simpleFunction84():
    x = tuple(range(7))

    j = 3
    x += tuple([h * 2 for h in range(j)])


def simpleFunction85():
    x = list(range(7))
    x[2] = 3
    x *= 2


def simpleFunction86():
    x = "something"
    x += ""


def simpleFunction87():
    x = 7
    x += 2000


class C:
    def f(self):
        pass

    def __iadd__(self, other):
        return self

    def method_function(*args, **kwargs):
        # Make sure to mutate the list argument value
        if "x" in kwargs:
            x = kwargs["x"]

            if type(x) is list:
                x.append(1)

        for x in args:
            if type(x) is list:
                x.append(1)

        return args, kwargs

    exec(
        """
def method_uncompiled_function(*args, **kwargs):
    # Make sure to mutate the list argument value
    if "x" in kwargs:
        x = kwargs["x"]

        if type(x) is list:
            x.append(1)

    for x in args:
        if type(x) is list:
            x.append(1)


    return args, kwargs
"""
    )

    def method_function_with_defaults(self, a, b, c, d=1, e=2, f=3):
        return True


def simpleFunction88():
    x = C()
    x += C()


def simpleFunction89():
    x = [1, 2]
    x += [3, 4]


def anyArgs(*args, **kw):
    return kw.keys(), kw.values()


def simpleFunction90():
    some_tuple = (simpleFunction89, simpleFunction89, simpleFunction89)

    anyArgs(*some_tuple)


def simpleFunction91():
    some_dict = {"a": simpleFunction90}

    anyArgs(**some_dict)


def simpleFunction92():
    some_tuple = (simpleFunction89,)

    some_dict = {"a": simpleFunction90}

    anyArgs(*some_tuple, **some_dict)


def simpleFunction93():
    some_tuple = (simpleFunction89,)

    some_dict = {"a": simpleFunction90}

    anyArgs(some_tuple, *some_tuple, **some_dict)


def simpleFunction94():
    some_tuple = (simpleFunction89,)

    some_dict = {"a": simpleFunction90}

    anyArgs(*some_tuple, b=some_dict, **some_dict)


def simpleFunction95():
    some_tuple = (simpleFunction89,)

    some_dict = {"a": simpleFunction90}

    anyArgs(some_tuple, *some_tuple, b=some_dict, **some_dict)


def simpleFunction96():
    some_tuple = (simpleFunction89,)

    anyArgs(some_tuple, *some_tuple)


# Complex call with dictionary and key arguments only.
def simpleFunction97():
    some_dict = {"a": simpleFunction90, "d": simpleFunction91}

    anyArgs(b=some_dict, c=1, **some_dict)


def simpleFunction98():
    some_tuple = (simpleFunction89,)

    anyArgs(*some_tuple, b=some_tuple)


def simpleFunction99():
    some_dict = {"a": simpleFunction90}

    anyArgs(some_dict, **some_dict)


def simpleFunction100():
    def h(f):
        def g():
            return f

        return g

    def f():
        pass

    h(f)


def simpleFunction101():
    def orMaking(a, b):
        x = "axa"
        x += a or b

    orMaking("x", "")


####################################


class SomeClassWithAttributeAccess(object):
    READING = 1

    def use(self):
        return self.READING


def simpleFunction102():
    SomeClassWithAttributeAccess().use()
    SomeClassWithAttributeAccess().use()


####################################


def getInt():
    return 3


def simpleFunction103():
    try:
        raise getInt()
    except TypeError:
        pass


####################################


class ClassWithGeneratorMethod:
    def generator_method(self):
        yield self


def simpleFunction104():
    return list(ClassWithGeneratorMethod().generator_method())


def simpleFunction105():
    """Delete a started generator, not properly closing it before releasing."""

    def generator():
        yield 1
        yield 2

    g = generator()
    next(g)

    del g


def simpleFunction106():
    # Call a PyCFunction with a single argument, spell-checker: ignore getsizeof
    return sys.getsizeof(type)


def simpleFunction107():
    # Call a PyCFunction with a single argument.
    return sum(i for i in range(x))


def simpleFunction108():
    # Call a PyCFunction with a single argument.
    return sum((i for i in range(x)), 17)


def simpleFunction109():
    # Call a PyCFunction that looks like a method call.
    sys.exc_info()


def simpleFunction110():
    def my_open(*args, **kwargs):
        return (args, kwargs)

    orig_open = __builtins__.open
    __builtins__.open = my_open

    open("me", buffering=True)
    __builtins__.open = orig_open


####################################

u = "__name__"


def simpleFunction111():
    return getattr(simpleFunction111, u)


####################################


def simpleFunction112():
    if sys.version_info >= (3, 12):
        return

    TEST_FN = "tmp.txt"
    import codecs

    try:
        with open(TEST_FN, "wb") as out_file:
            out_file.write(b"\xa1")
        f = codecs.open(TEST_FN, encoding="cp949")
        f.read(2)
    except UnicodeDecodeError:
        pass
    finally:
        try:
            f.close()
        except Exception:
            pass
        try:
            os.unlink(TEST_FN)
        except Exception:
            pass


####################################


def simpleFunction113():
    class A(object):
        pass

    a = A()
    a.a = a

    return a


l = []


def simpleFunction114():
    global l
    l += ["something"]

    # Erase it to avoid reference change.
    del l[:]


i = 2**16 + 1


def simpleFunction115():
    global i
    i += 1


t = tuple(range(259))


def simpleFunction116():
    global t
    t += (2, 3)

    t = tuple(range(259))


def simpleFunction117():
    # Operation tuple+object, error case.
    try:
        return tuple(t) + i
    except TypeError:
        pass


def simpleFunction118():
    # Operation tuple+object, error case.
    try:
        return i + tuple(t)
    except TypeError:
        pass


t2 = tuple(range(9))


def simpleFunction119():
    # Operation tuple+object no error case.
    return tuple(t) + t2


def simpleFunction120():
    # Operation object+tuple no error case.
    return t2 + tuple(t)


def simpleFunction121():
    # Operation tuple+tuple
    return tuple(t2) + tuple(t)


def simpleFunction122():
    # Operation list+object, error case.
    try:
        return list(t) + i
    except TypeError:
        pass


def simpleFunction123():
    # Operation list+object, error case.
    try:
        return i + list(t)
    except TypeError:
        pass


l2 = list(range(9))


def simpleFunction124():
    # Operation list+object no error case.
    return list(t) + l2


def simpleFunction125():
    # Operation object+list no error case.
    return l2 + list(t)


def simpleFunction126():
    # Operation tuple+tuple
    return list(l2) + list(t)


class TupleWithSlots(tuple):
    def __add__(self, other):
        return 42

    def __radd__(self, other):
        return 42


def simpleFunction127():
    # Operation tuple+object with add slot.
    return tuple(t) + TupleWithSlots()


def simpleFunction128():
    # Operation object+tuple with add slot.
    return TupleWithSlots() + tuple(t)


class ListWithSlots(list):
    def __add__(self, other):
        return 42

    def __radd__(self, other):
        return 42


def simpleFunction129():
    # Operation list+object with add slot.
    return list(t) + ListWithSlots()


def simpleFunction130():
    # Operation list+object with add slot.
    return ListWithSlots() + list(t)


def simpleFunction131():
    try:
        C().f.__reduce__()
    except Exception as e:
        assert sys.version_info < (3, 4)


def simpleFunction132():
    C().f.__reduce_ex__(5)


x = 5


def local_function(*args, **kwargs):
    # Make sure to mutate the list argument value
    if "x" in kwargs:
        x = kwargs["x"]

        if type(x) is list:
            x.append(1)

    for x in args:
        if type(x) is list:
            x.append(1)

    return args, kwargs


exec(
    """
def local_uncompiled_function(*args, **kwargs):
    # Make sure to mutate the list argument value
    if "x" in kwargs:
        x = kwargs["x"]

        if type(x) is list:
            x.append(1)

    for x in args:
        if type(x) is list:
            x.append(1)


    return args, kwargs
"""
)


def simpleFunction133():
    local_function(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
    local_function(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, x=1)
    local_function(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, x=x)
    local_function(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, x=[])
    local_function(1, 2, 3, 4, 5, 6, 7, x, 9, 10, 11, x=1)
    local_function(1, 2, 3, 4, 5, 6, 7, x, 9, 10, 11, x=x)
    local_function(1, 2, 3, 4, 5, 6, 7, [], 9, 10, 11, x=[])
    local_function(x=1)
    local_function(x=x)
    local_function(x=[])

    local_uncompiled_function(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
    local_uncompiled_function(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, x=1)
    local_uncompiled_function(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, x=x)
    local_uncompiled_function(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, x=[])
    local_uncompiled_function(1, 2, 3, 4, 5, 6, 7, x, 9, 10, 11, x=1)
    local_uncompiled_function(1, 2, 3, 4, 5, 6, 7, x, 9, 10, 11, x=x)
    local_uncompiled_function(1, 2, 3, 4, 5, 6, 7, [], 9, 10, 11, x=[])
    local_uncompiled_function(x=1)
    local_uncompiled_function(x=x)
    local_uncompiled_function(x=[])

    c = C()
    C().method_function(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, x=1)
    C.method_function(c, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, x=1)
    C().method_function(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, x=x)
    C().method_function(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, x=[1])
    C.method_function(c, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, x=x)
    C().method_function(1, 2, 3, 4, 5, 6, 7, x, 9, 10, 11, x=1)
    C.method_function(c, 1, 2, 3, 4, 5, 6, 7, x, 9, 10, 11, x=1)
    C().method_function(1, 2, 3, 4, 5, 6, 7, x, 9, 10, 11, x=x)
    C.method_function(c, 1, 2, 3, 4, 5, 6, 7, x, 9, 10, 11, x=x)
    C().method_function(1, 2, 3, 4, 5, 6, 7, [1], 9, 10, 11, x=[1])
    C.method_function(c, 1, 2, 3, 4, 5, 6, 7, [1], 9, 10, 11, x=[1])
    C().method_function(x=1)
    C().method_function(x=x)
    C().method_function(x=[1])

    C().method_uncompiled_function(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, x=1)
    C.method_uncompiled_function(c, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, x=1)
    C().method_uncompiled_function(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, x=x)
    C().method_uncompiled_function(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, x=[1])
    C.method_uncompiled_function(c, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, x=x)
    C().method_uncompiled_function(1, 2, 3, 4, 5, 6, 7, x, 9, 10, 11, x=1)
    C.method_uncompiled_function(c, 1, 2, 3, 4, 5, 6, 7, x, 9, 10, 11, x=1)
    C().method_uncompiled_function(1, 2, 3, 4, 5, 6, 7, x, 9, 10, 11, x=x)
    C.method_uncompiled_function(c, 1, 2, 3, 4, 5, 6, 7, x, 9, 10, 11, x=x)
    C().method_uncompiled_function(1, 2, 3, 4, 5, 6, 7, [1], 9, 10, 11, x=[1])
    C.method_uncompiled_function(c, 1, 2, 3, 4, 5, 6, 7, [1], 9, 10, 11, x=[1])
    C().method_uncompiled_function(x=1)
    C().method_uncompiled_function(x=x)
    C().method_uncompiled_function(x=[1])

    C().method_function_with_defaults(1, 2, 3, d=1)
    C().method_function_with_defaults(1, x, 3, d=x)
    C().method_function_with_defaults(1, x, 3, d=[1])


def copy_func(func):
    try:
        return func.clone()
    except AttributeError:
        import types

        # spell-checker: ignore argdefs
        return types.FunctionType(
            func.__code__,
            func.__globals__,
            name=func.__name__,
            argdefs=func.__defaults__,
            closure=func.__closure__,
        )
        # g.__kwdefaults__ = f.__kwdefaults__


def simpleFunction134():
    z = x

    def to_copy(a=3):
        "some docstring"
        return 7 * a * z

    return copy_func(to_copy)


def simpleFunction135():
    def sync_gen():
        raise ZeroDivisionError
        yield 100

    sync_iterate(sync_gen())


# TODO: This memory leaks closure cells and needs a fix
def no_simpleFunction136():
    def someGenWithClosureGiven():
        if x:
            return

        value_given = []

        def localFuncUsingClosureValue():
            return value_given

        yield localFuncUsingClosureValue

    return list(someGenWithClosureGiven())


####################################

# These need stderr to be wrapped.
tests_stderr = (63,)

# Disabled tests
tests_skipped = {}

result = executeReferenceChecked(
    prefix="simpleFunction",
    names=globals(),
    tests_skipped=tests_skipped,
    tests_stderr=tests_stderr,
    explain=False,
)

print("OK." if result else "FAIL.")
sys.exit(0 if result else 1)

#     Python tests originally created or extracted from other peoples work. The
#     parts were too small to be protected.
#
#     Licensed under the Apache License, Version 2.0 (the "License");
#     you may not use this file except in compliance with the License.
#     You may obtain a copy of the License at
#
#        http://www.apache.org/licenses/LICENSE-2.0
#
#     Unless required by applicable law or agreed to in writing, software
#     distributed under the License is distributed on an "AS IS" BASIS,
#     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#     See the License for the specific language governing permissions and
#     limitations under the License.