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pybind11
Commit c50f90ec by Henry Schreiner Committed by GitHub
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style: use Black everywhere (#2594) 

* style: use Black everywhere

* style: minor touchup from review
parent 2e31e466
Showing with 1079 additions and 551 deletions
.pre-commit-config.yaml
......@@ -36,8 +36,7 @@ repos:
- id: black
# By default, this ignores pyi files, though black supports them
types: [text]
# Not all Python files are Blacked, yet
files: ^(setup.py|pybind11|tests/extra|tools).*\.pyi?$
files: \.pyi?$
# Changes tabs to spaces
- repo: https://github.com/Lucas-C/pre-commit-hooks
......
docs/benchmark.py
......@@ -14,7 +14,7 @@ def generate_dummy_code_pybind11(nclasses=10):
for cl in range(nclasses):
decl += "class cl%03i;\n" % cl
decl += '\n'
decl += "\n"
for cl in range(nclasses):
decl += "class cl%03i {\n" % cl
......@@ -22,18 +22,17 @@ def generate_dummy_code_pybind11(nclasses=10):
bindings += ' py::class_<cl%03i>(m, "cl%03i")\n' % (cl, cl)
for fn in range(nfns):
ret = random.randint(0, nclasses - 1)
params = [random.randint(0, nclasses - 1) for i in range(nargs)]
params = [random.randint(0, nclasses - 1) for i in range(nargs)]
decl += " cl%03i *fn_%03i(" % (ret, fn)
decl += ", ".join("cl%03i *" % p for p in params)
decl += ");\n"
bindings += ' .def("fn_%03i", &cl%03i::fn_%03i)\n' % \
(fn, cl, fn)
bindings += ' .def("fn_%03i", &cl%03i::fn_%03i)\n' % (fn, cl, fn)
decl += "};\n\n"
bindings += ' ;\n'
bindings += " ;\n"
result = "#include <pybind11/pybind11.h>\n\n"
result += "namespace py = pybind11;\n\n"
result += decl + '\n'
result += decl + "\n"
result += "PYBIND11_MODULE(example, m) {\n"
result += bindings
result += "}"
......@@ -46,7 +45,7 @@ def generate_dummy_code_boost(nclasses=10):
for cl in range(nclasses):
decl += "class cl%03i;\n" % cl
decl += '\n'
decl += "\n"
for cl in range(nclasses):
decl += "class cl%03i {\n" % cl
......@@ -54,18 +53,20 @@ def generate_dummy_code_boost(nclasses=10):
bindings += ' py::class_<cl%03i>("cl%03i")\n' % (cl, cl)
for fn in range(nfns):
ret = random.randint(0, nclasses - 1)
params = [random.randint(0, nclasses - 1) for i in range(nargs)]
params = [random.randint(0, nclasses - 1) for i in range(nargs)]
decl += " cl%03i *fn_%03i(" % (ret, fn)
decl += ", ".join("cl%03i *" % p for p in params)
decl += ");\n"
bindings += ' .def("fn_%03i", &cl%03i::fn_%03i, py::return_value_policy<py::manage_new_object>())\n' % \
(fn, cl, fn)
bindings += (
' .def("fn_%03i", &cl%03i::fn_%03i, py::return_value_policy<py::manage_new_object>())\n'
% (fn, cl, fn)
)
decl += "};\n\n"
bindings += ' ;\n'
bindings += " ;\n"
result = "#include <boost/python.hpp>\n\n"
result += "namespace py = boost::python;\n\n"
result += decl + '\n'
result += decl + "\n"
result += "BOOST_PYTHON_MODULE(example) {\n"
result += bindings
result += "}"
......@@ -73,17 +74,19 @@ def generate_dummy_code_boost(nclasses=10):
for codegen in [generate_dummy_code_pybind11, generate_dummy_code_boost]:
print ("{")
print("{")
for i in range(0, 10):
nclasses = 2 ** i
with open("test.cpp", "w") as f:
f.write(codegen(nclasses))
n1 = dt.datetime.now()
os.system("g++ -Os -shared -rdynamic -undefined dynamic_lookup "
os.system(
"g++ -Os -shared -rdynamic -undefined dynamic_lookup "
"-fvisibility=hidden -std=c++14 test.cpp -I include "
"-I /System/Library/Frameworks/Python.framework/Headers -o test.so")
"-I /System/Library/Frameworks/Python.framework/Headers -o test.so"
)
n2 = dt.datetime.now()
elapsed = (n2 - n1).total_seconds()
size = os.stat('test.so').st_size
size = os.stat("test.so").st_size
print(" {%i, %f, %i}," % (nclasses * nfns, elapsed, size))
print ("}")
print("}")
tests/conftest.py
......@@ -18,9 +18,9 @@ import env
# Early diagnostic for failed imports
import pybind11_tests # noqa: F401
_unicode_marker = re.compile(r'u(\'[^\']*\')')
_long_marker = re.compile(r'([0-9])L')
_hexadecimal = re.compile(r'0x[0-9a-fA-F]+')
_unicode_marker = re.compile(r"u(\'[^\']*\')")
_long_marker = re.compile(r"([0-9])L")
_hexadecimal = re.compile(r"0x[0-9a-fA-F]+")
# Avoid collecting Python3 only files
collect_ignore = []
......@@ -30,7 +30,7 @@ if env.PY2:
def _strip_and_dedent(s):
"""For triple-quote strings"""
return textwrap.dedent(s.lstrip('\n').rstrip())
return textwrap.dedent(s.lstrip("\n").rstrip())
def _split_and_sort(s):
......@@ -40,11 +40,14 @@ def _split_and_sort(s):
def _make_explanation(a, b):
"""Explanation for a failed assert -- the a and b arguments are List[str]"""
return ["--- actual / +++ expected"] + [line.strip('\n') for line in difflib.ndiff(a, b)]
return ["--- actual / +++ expected"] + [
line.strip("\n") for line in difflib.ndiff(a, b)
]
class Output(object):
"""Basic output post-processing and comparison"""
def __init__(self, string):
self.string = string
self.explanation = []
......@@ -54,7 +57,11 @@ class Output(object):
def __eq__(self, other):
# Ignore constructor/destructor output which is prefixed with "###"
a = [line for line in self.string.strip().splitlines() if not line.startswith("###")]
a = [
line
for line in self.string.strip().splitlines()
if not line.startswith("###")
]
b = _strip_and_dedent(other).splitlines()
if a == b:
return True
......@@ -65,6 +72,7 @@ class Output(object):
class Unordered(Output):
"""Custom comparison for output without strict line ordering"""
def __eq__(self, other):
a = _split_and_sort(self.string)
b = _split_and_sort(other)
......@@ -175,7 +183,7 @@ def msg():
# noinspection PyUnusedLocal
def pytest_assertrepr_compare(op, left, right):
"""Hook to insert custom failure explanation"""
if hasattr(left, 'explanation'):
if hasattr(left, "explanation"):
return left.explanation
......@@ -189,8 +197,8 @@ def suppress(exception):
def gc_collect():
''' Run the garbage collector twice (needed when running
reference counting tests with PyPy) '''
"""Run the garbage collector twice (needed when running
reference counting tests with PyPy)"""
gc.collect()
gc.collect()
......
tests/test_buffers.py
......@@ -46,8 +46,8 @@ def test_to_python():
mat[3, 2] = 7.0
assert mat[2, 3] == 4
assert mat[3, 2] == 7
assert struct.unpack_from('f', mat, (3 * 4 + 2) * 4) == (7, )
assert struct.unpack_from('f', mat, (2 * 4 + 3) * 4) == (4, )
assert struct.unpack_from("f", mat, (3 * 4 + 2) * 4) == (7,)
assert struct.unpack_from("f", mat, (2 * 4 + 3) * 4) == (4,)
mat2 = np.array(mat, copy=False)
assert mat2.shape == (5, 4)
......@@ -83,31 +83,31 @@ def test_pointer_to_member_fn():
for cls in [m.Buffer, m.ConstBuffer, m.DerivedBuffer]:
buf = cls()
buf.value = 0x12345678
value = struct.unpack('i', bytearray(buf))[0]
value = struct.unpack("i", bytearray(buf))[0]
assert value == 0x12345678
def test_readonly_buffer():
buf = m.BufferReadOnly(0x64)
view = memoryview(buf)
assert view[0] == b'd' if env.PY2 else 0x64
assert view[0] == b"d" if env.PY2 else 0x64
assert view.readonly
def test_selective_readonly_buffer():
buf = m.BufferReadOnlySelect()
memoryview(buf)[0] = b'd' if env.PY2 else 0x64
memoryview(buf)[0] = b"d" if env.PY2 else 0x64
assert buf.value == 0x64
io.BytesIO(b'A').readinto(buf)
assert buf.value == ord(b'A')
io.BytesIO(b"A").readinto(buf)
assert buf.value == ord(b"A")
buf.readonly = True
with pytest.raises(TypeError):
memoryview(buf)[0] = b'\0' if env.PY2 else 0
memoryview(buf)[0] = b"\0" if env.PY2 else 0
with pytest.raises(TypeError):
io.BytesIO(b'1').readinto(buf)
io.BytesIO(b"1").readinto(buf)
def test_ctypes_array_1d():
......
tests/test_call_policies.py
......@@ -16,10 +16,13 @@ def test_keep_alive_argument(capture):
with capture:
p.addChild(m.Child())
assert ConstructorStats.detail_reg_inst() == n_inst + 1
assert capture == """
assert (
capture
== """
Allocating child.
Releasing child.
"""
)
with capture:
del p
assert ConstructorStats.detail_reg_inst() == n_inst
......@@ -35,10 +38,13 @@ def test_keep_alive_argument(capture):
with capture:
del p
assert ConstructorStats.detail_reg_inst() == n_inst
assert capture == """
assert (
capture
== """
Releasing parent.
Releasing child.
"""
)
def test_keep_alive_return_value(capture):
......@@ -49,10 +55,13 @@ def test_keep_alive_return_value(capture):
with capture:
p.returnChild()
assert ConstructorStats.detail_reg_inst() == n_inst + 1
assert capture == """
assert (
capture
== """
Allocating child.
Releasing child.
"""
)
with capture:
del p
assert ConstructorStats.detail_reg_inst() == n_inst
......@@ -68,10 +77,13 @@ def test_keep_alive_return_value(capture):
with capture:
del p
assert ConstructorStats.detail_reg_inst() == n_inst
assert capture == """
assert (
capture
== """
Releasing parent.
Releasing child.
"""
)
# https://foss.heptapod.net/pypy/pypy/-/issues/2447
......@@ -82,14 +94,17 @@ def test_alive_gc(capture):
p.addChildKeepAlive(m.Child())
assert ConstructorStats.detail_reg_inst() == n_inst + 2
lst = [p]
lst.append(lst) # creates a circular reference
lst.append(lst) # creates a circular reference
with capture:
del p, lst
assert ConstructorStats.detail_reg_inst() == n_inst
assert capture == """
assert (
capture
== """
Releasing parent.
Releasing child.
"""
)
def test_alive_gc_derived(capture):
......@@ -101,14 +116,17 @@ def test_alive_gc_derived(capture):
p.addChildKeepAlive(m.Child())
assert ConstructorStats.detail_reg_inst() == n_inst + 2
lst = [p]
lst.append(lst) # creates a circular reference
lst.append(lst) # creates a circular reference
with capture:
del p, lst
assert ConstructorStats.detail_reg_inst() == n_inst
assert capture == """
assert (
capture
== """
Releasing parent.
Releasing child.
"""
)
def test_alive_gc_multi_derived(capture):
......@@ -123,15 +141,18 @@ def test_alive_gc_multi_derived(capture):
# +3 rather than +2 because Derived corresponds to two registered instances
assert ConstructorStats.detail_reg_inst() == n_inst + 3
lst = [p]
lst.append(lst) # creates a circular reference
lst.append(lst) # creates a circular reference
with capture:
del p, lst
assert ConstructorStats.detail_reg_inst() == n_inst
assert capture == """
assert (
capture
== """
Releasing parent.
Releasing child.
Releasing child.
"""
)
def test_return_none(capture):
......@@ -167,17 +188,23 @@ def test_keep_alive_constructor(capture):
with capture:
p = m.Parent(m.Child())
assert ConstructorStats.detail_reg_inst() == n_inst + 2
assert capture == """
assert (
capture
== """
Allocating child.
Allocating parent.
"""
)
with capture:
del p
assert ConstructorStats.detail_reg_inst() == n_inst
assert capture == """
assert (
capture
== """
Releasing parent.
Releasing child.
"""
)
def test_call_guard():
......
tests/test_callbacks.py
......@@ -42,17 +42,19 @@ def test_bound_method_callback():
def test_keyword_args_and_generalized_unpacking():
def f(*args, **kwargs):
return args, kwargs
assert m.test_tuple_unpacking(f) == (("positional", 1, 2, 3, 4, 5, 6), {})
assert m.test_dict_unpacking(f) == (("positional", 1), {"key": "value", "a": 1, "b": 2})
assert m.test_dict_unpacking(f) == (
("positional", 1),
{"key": "value", "a": 1, "b": 2},
)
assert m.test_keyword_args(f) == ((), {"x": 10, "y": 20})
assert m.test_unpacking_and_keywords1(f) == ((1, 2), {"c": 3, "d": 4})
assert m.test_unpacking_and_keywords2(f) == (
("positional", 1, 2, 3, 4, 5),
{"key": "value", "a": 1, "b": 2, "c": 3, "d": 4, "e": 5}
{"key": "value", "a": 1, "b": 2, "c": 3, "d": 4, "e": 5},
)
with pytest.raises(TypeError) as excinfo:
......@@ -83,12 +85,18 @@ def test_lambda_closure_cleanup():
def test_cpp_function_roundtrip():
"""Test if passing a function pointer from C++ -> Python -> C++ yields the original pointer"""
assert m.test_dummy_function(m.dummy_function) == "matches dummy_function: eval(1) = 2"
assert (m.test_dummy_function(m.roundtrip(m.dummy_function)) ==
"matches dummy_function: eval(1) = 2")
assert (
m.test_dummy_function(m.dummy_function) == "matches dummy_function: eval(1) = 2"
)
assert (
m.test_dummy_function(m.roundtrip(m.dummy_function))
== "matches dummy_function: eval(1) = 2"
)
assert m.roundtrip(None, expect_none=True) is None
assert (m.test_dummy_function(lambda x: x + 2) ==
"can't convert to function pointer: eval(1) = 3")
assert (
m.test_dummy_function(lambda x: x + 2)
== "can't convert to function pointer: eval(1) = 3"
)
with pytest.raises(TypeError) as excinfo:
m.test_dummy_function(m.dummy_function2)
......@@ -96,8 +104,10 @@ def test_cpp_function_roundtrip():
with pytest.raises(TypeError) as excinfo:
m.test_dummy_function(lambda x, y: x + y)
assert any(s in str(excinfo.value) for s in ("missing 1 required positional argument",
"takes exactly 2 arguments"))
assert any(
s in str(excinfo.value)
for s in ("missing 1 required positional argument", "takes exactly 2 arguments")
)
def test_function_signatures(doc):
......@@ -127,6 +137,7 @@ def test_async_callbacks():
m.test_async_callback(gen_f(), work)
# wait until work is done
from time import sleep
sleep(0.5)
assert sum(res) == sum([x + 3 for x in work])
......
tests/test_chrono.py
......@@ -80,22 +80,28 @@ SKIP_TZ_ENV_ON_WIN = pytest.mark.skipif(
)
@pytest.mark.parametrize("time1", [
datetime.datetime.today().time(),
datetime.time(0, 0, 0),
datetime.time(0, 0, 0, 1),
datetime.time(0, 28, 45, 109827),
datetime.time(0, 59, 59, 999999),
datetime.time(1, 0, 0),
datetime.time(5, 59, 59, 0),
datetime.time(5, 59, 59, 1),
])
@pytest.mark.parametrize("tz", [
None,
pytest.param("Europe/Brussels", marks=SKIP_TZ_ENV_ON_WIN),
pytest.param("Asia/Pyongyang", marks=SKIP_TZ_ENV_ON_WIN),
pytest.param("America/New_York", marks=SKIP_TZ_ENV_ON_WIN),
])
@pytest.mark.parametrize(
"time1",
[
datetime.datetime.today().time(),
datetime.time(0, 0, 0),
datetime.time(0, 0, 0, 1),
datetime.time(0, 28, 45, 109827),
datetime.time(0, 59, 59, 999999),
datetime.time(1, 0, 0),
datetime.time(5, 59, 59, 0),
datetime.time(5, 59, 59, 1),
],
)
@pytest.mark.parametrize(
"tz",
[
None,
pytest.param("Europe/Brussels", marks=SKIP_TZ_ENV_ON_WIN),
pytest.param("Asia/Pyongyang", marks=SKIP_TZ_ENV_ON_WIN),
pytest.param("America/New_York", marks=SKIP_TZ_ENV_ON_WIN),
],
)
def test_chrono_system_clock_roundtrip_time(time1, tz, monkeypatch):
if tz is not None:
monkeypatch.setenv("TZ", "/usr/share/zoneinfo/{}".format(tz))
......@@ -199,7 +205,7 @@ def test_floating_point_duration():
def test_nano_timepoint():
time = datetime.datetime.now()
time1 = m.test_nano_timepoint(time, datetime.timedelta(seconds=60))
assert(time1 == time + datetime.timedelta(seconds=60))
assert time1 == time + datetime.timedelta(seconds=60)
def test_chrono_different_resolutions():
......
tests/test_class.py
......@@ -31,8 +31,10 @@ def test_type():
with pytest.raises(RuntimeError) as execinfo:
m.check_type(0)
assert 'pybind11::detail::get_type_info: unable to find type info' in str(execinfo.value)
assert 'Invalid' in str(execinfo.value)
assert "pybind11::detail::get_type_info: unable to find type info" in str(
execinfo.value
)
assert "Invalid" in str(execinfo.value)
# Currently not supported
# See https://github.com/pybind/pybind11/issues/2486
......@@ -73,18 +75,24 @@ def test_docstrings(doc):
assert UserType.get_value.__name__ == "get_value"
assert UserType.get_value.__module__ == "pybind11_tests"
assert doc(UserType.get_value) == """
assert (
doc(UserType.get_value)
== """
get_value(self: m.UserType) -> int
Get value using a method
"""
)
assert doc(UserType.value) == "Get/set value using a property"
assert doc(m.NoConstructor.new_instance) == """
assert (
doc(m.NoConstructor.new_instance)
== """
new_instance() -> m.class_.NoConstructor
Return an instance
"""
)
def test_qualname(doc):
......@@ -93,51 +101,69 @@ def test_qualname(doc):
assert m.NestBase.__qualname__ == "NestBase"
assert m.NestBase.Nested.__qualname__ == "NestBase.Nested"
assert doc(m.NestBase.__init__) == """
assert (
doc(m.NestBase.__init__)
== """
__init__(self: m.class_.NestBase) -> None
"""
assert doc(m.NestBase.g) == """
)
assert (
doc(m.NestBase.g)
== """
g(self: m.class_.NestBase, arg0: m.class_.NestBase.Nested) -> None
"""
assert doc(m.NestBase.Nested.__init__) == """
)
assert (
doc(m.NestBase.Nested.__init__)
== """
__init__(self: m.class_.NestBase.Nested) -> None
"""
assert doc(m.NestBase.Nested.fn) == """
)
assert (
doc(m.NestBase.Nested.fn)
== """
fn(self: m.class_.NestBase.Nested, arg0: int, arg1: m.class_.NestBase, arg2: m.class_.NestBase.Nested) -> None
""" # noqa: E501 line too long
assert doc(m.NestBase.Nested.fa) == """
)
assert (
doc(m.NestBase.Nested.fa)
== """
fa(self: m.class_.NestBase.Nested, a: int, b: m.class_.NestBase, c: m.class_.NestBase.Nested) -> None
""" # noqa: E501 line too long
)
assert m.NestBase.__module__ == "pybind11_tests.class_"
assert m.NestBase.Nested.__module__ == "pybind11_tests.class_"
def test_inheritance(msg):
roger = m.Rabbit('Rabbit')
roger = m.Rabbit("Rabbit")
assert roger.name() + " is a " + roger.species() == "Rabbit is a parrot"
assert m.pet_name_species(roger) == "Rabbit is a parrot"
polly = m.Pet('Polly', 'parrot')
polly = m.Pet("Polly", "parrot")
assert polly.name() + " is a " + polly.species() == "Polly is a parrot"
assert m.pet_name_species(polly) == "Polly is a parrot"
molly = m.Dog('Molly')
molly = m.Dog("Molly")
assert molly.name() + " is a " + molly.species() == "Molly is a dog"
assert m.pet_name_species(molly) == "Molly is a dog"
fred = m.Hamster('Fred')
fred = m.Hamster("Fred")
assert fred.name() + " is a " + fred.species() == "Fred is a rodent"
assert m.dog_bark(molly) == "Woof!"
with pytest.raises(TypeError) as excinfo:
m.dog_bark(polly)
assert msg(excinfo.value) == """
assert (
msg(excinfo.value)
== """
dog_bark(): incompatible function arguments. The following argument types are supported:
1. (arg0: m.class_.Dog) -> str
Invoked with: <m.class_.Pet object at 0>
"""
)
with pytest.raises(TypeError) as excinfo:
m.Chimera("lion", "goat")
......@@ -150,6 +176,7 @@ def test_inheritance_init(msg):
class Python(m.Pet):
def __init__(self):
pass
with pytest.raises(TypeError) as exc_info:
Python()
expected = "m.class_.Pet.__init__() must be called when overriding __init__"
......@@ -191,13 +218,19 @@ def test_mismatched_holder():
with pytest.raises(RuntimeError) as excinfo:
m.mismatched_holder_1()
assert re.match('generic_type: type ".*MismatchDerived1" does not have a non-default '
'holder type while its base ".*MismatchBase1" does', str(excinfo.value))
assert re.match(
'generic_type: type ".*MismatchDerived1" does not have a non-default '
'holder type while its base ".*MismatchBase1" does',
str(excinfo.value),
)
with pytest.raises(RuntimeError) as excinfo:
m.mismatched_holder_2()
assert re.match('generic_type: type ".*MismatchDerived2" has a non-default holder type '
'while its base ".*MismatchBase2" does not', str(excinfo.value))
assert re.match(
'generic_type: type ".*MismatchDerived2" has a non-default holder type '
'while its base ".*MismatchBase2" does not',
str(excinfo.value),
)
def test_override_static():
......@@ -229,20 +262,20 @@ def test_operator_new_delete(capture):
a = m.HasOpNewDel()
b = m.HasOpNewDelSize()
d = m.HasOpNewDelBoth()
assert capture == """
assert (
capture
== """
A new 8
B new 4
D new 32
"""
)
sz_alias = str(m.AliasedHasOpNewDelSize.size_alias)
sz_noalias = str(m.AliasedHasOpNewDelSize.size_noalias)
with capture:
c = m.AliasedHasOpNewDelSize()
c2 = SubAliased()
assert capture == (
"C new " + sz_noalias + "\n" +
"C new " + sz_alias + "\n"
)
assert capture == ("C new " + sz_noalias + "\n" + "C new " + sz_alias + "\n")
with capture:
del a
......@@ -251,21 +284,21 @@ def test_operator_new_delete(capture):
pytest.gc_collect()
del d
pytest.gc_collect()
assert capture == """
assert (
capture
== """
A delete
B delete 4
D delete
"""
)
with capture:
del c
pytest.gc_collect()
del c2
pytest.gc_collect()
assert capture == (
"C delete " + sz_noalias + "\n" +
"C delete " + sz_alias + "\n"
)
assert capture == ("C delete " + sz_noalias + "\n" + "C delete " + sz_alias + "\n")
def test_bind_protected_functions():
......@@ -325,19 +358,23 @@ def test_reentrant_implicit_conversion_failure(msg):
# ensure that there is no runaway reentrant implicit conversion (#1035)
with pytest.raises(TypeError) as excinfo:
m.BogusImplicitConversion(0)
assert msg(excinfo.value) == '''
assert (
msg(excinfo.value)
== """
__init__(): incompatible constructor arguments. The following argument types are supported:
1. m.class_.BogusImplicitConversion(arg0: m.class_.BogusImplicitConversion)
Invoked with: 0
'''
"""
)
def test_error_after_conversions():
with pytest.raises(TypeError) as exc_info:
m.test_error_after_conversions("hello")
assert str(exc_info.value).startswith(
"Unable to convert function return value to a Python type!")
"Unable to convert function return value to a Python type!"
)
def test_aligned():
......@@ -350,8 +387,10 @@ def test_aligned():
@pytest.mark.xfail("env.PYPY")
def test_final():
with pytest.raises(TypeError) as exc_info:
class PyFinalChild(m.IsFinal):
pass
assert str(exc_info.value).endswith("is not an acceptable base type")
......@@ -359,8 +398,10 @@ def test_final():
@pytest.mark.xfail("env.PYPY")
def test_non_final_final():
with pytest.raises(TypeError) as exc_info:
class PyNonFinalFinalChild(m.IsNonFinalFinal):
pass
assert str(exc_info.value).endswith("is not an acceptable base type")
......@@ -396,11 +437,14 @@ def test_base_and_derived_nested_scope():
@pytest.mark.skip("See https://github.com/pybind/pybind11/pull/2564")
def test_register_duplicate_class():
import types
module_scope = types.ModuleType("module_scope")
with pytest.raises(RuntimeError) as exc_info:
m.register_duplicate_class_name(module_scope)
expected = ('generic_type: cannot initialize type "Duplicate": '
'an object with that name is already defined')
expected = (
'generic_type: cannot initialize type "Duplicate": '
"an object with that name is already defined"
)
assert str(exc_info.value) == expected
with pytest.raises(RuntimeError) as exc_info:
m.register_duplicate_class_type(module_scope)
......@@ -409,10 +453,13 @@ def test_register_duplicate_class():
class ClassScope:
pass
with pytest.raises(RuntimeError) as exc_info:
m.register_duplicate_nested_class_name(ClassScope)
expected = ('generic_type: cannot initialize type "DuplicateNested": '
'an object with that name is already defined')
expected = (
'generic_type: cannot initialize type "DuplicateNested": '
"an object with that name is already defined"
)
assert str(exc_info.value) == expected
with pytest.raises(RuntimeError) as exc_info:
m.register_duplicate_nested_class_type(ClassScope)
......
tests/test_copy_move.py
......@@ -19,7 +19,11 @@ def test_move_and_copy_casts():
"""Cast some values in C++ via custom type casters and count the number of moves/copies."""
cstats = m.move_and_copy_cstats()
c_m, c_mc, c_c = cstats["MoveOnlyInt"], cstats["MoveOrCopyInt"], cstats["CopyOnlyInt"]
c_m, c_mc, c_c = (
cstats["MoveOnlyInt"],
cstats["MoveOrCopyInt"],
cstats["CopyOnlyInt"],
)
# The type move constructions/assignments below each get incremented: the move assignment comes
# from the type_caster load; the move construction happens when extracting that via a cast or
......@@ -43,7 +47,11 @@ def test_move_and_copy_loads():
moves/copies."""
cstats = m.move_and_copy_cstats()
c_m, c_mc, c_c = cstats["MoveOnlyInt"], cstats["MoveOrCopyInt"], cstats["CopyOnlyInt"]
c_m, c_mc, c_c = (
cstats["MoveOnlyInt"],
cstats["MoveOrCopyInt"],
cstats["CopyOnlyInt"],
)
assert m.move_only(10) == 10 # 1 move, c_m
assert m.move_or_copy(11) == 11 # 1 move, c_mc
......@@ -66,12 +74,16 @@ def test_move_and_copy_loads():
assert c_m.alive() + c_mc.alive() + c_c.alive() == 0
@pytest.mark.skipif(not m.has_optional, reason='no <optional>')
@pytest.mark.skipif(not m.has_optional, reason="no <optional>")
def test_move_and_copy_load_optional():
"""Tests move/copy loads of std::optional arguments"""
cstats = m.move_and_copy_cstats()
c_m, c_mc, c_c = cstats["MoveOnlyInt"], cstats["MoveOrCopyInt"], cstats["CopyOnlyInt"]
c_m, c_mc, c_c = (
cstats["MoveOnlyInt"],
cstats["MoveOrCopyInt"],
cstats["CopyOnlyInt"],
)
# The extra move/copy constructions below come from the std::optional move (which has to move
# its arguments):
......
tests/test_custom_type_casters.py
......@@ -5,65 +5,91 @@ from pybind11_tests import custom_type_casters as m
def test_noconvert_args(msg):
a = m.ArgInspector()
assert msg(a.f("hi")) == """
assert (
msg(a.f("hi"))
== """
loading ArgInspector1 argument WITH conversion allowed. Argument value = hi
"""
assert msg(a.g("this is a", "this is b")) == """
)
assert (
msg(a.g("this is a", "this is b"))
== """
loading ArgInspector1 argument WITHOUT conversion allowed. Argument value = this is a
loading ArgInspector1 argument WITH conversion allowed. Argument value = this is b
13
loading ArgInspector2 argument WITH conversion allowed. Argument value = (default arg inspector 2)
""" # noqa: E501 line too long
assert msg(a.g("this is a", "this is b", 42)) == """
)
assert (
msg(a.g("this is a", "this is b", 42))
== """
loading ArgInspector1 argument WITHOUT conversion allowed. Argument value = this is a
loading ArgInspector1 argument WITH conversion allowed. Argument value = this is b
42
loading ArgInspector2 argument WITH conversion allowed. Argument value = (default arg inspector 2)
""" # noqa: E501 line too long
assert msg(a.g("this is a", "this is b", 42, "this is d")) == """
)
assert (
msg(a.g("this is a", "this is b", 42, "this is d"))
== """
loading ArgInspector1 argument WITHOUT conversion allowed. Argument value = this is a
loading ArgInspector1 argument WITH conversion allowed. Argument value = this is b
42
loading ArgInspector2 argument WITH conversion allowed. Argument value = this is d
"""
assert (a.h("arg 1") ==
"loading ArgInspector2 argument WITHOUT conversion allowed. Argument value = arg 1")
assert msg(m.arg_inspect_func("A1", "A2")) == """
)
assert (
a.h("arg 1")
== "loading ArgInspector2 argument WITHOUT conversion allowed. Argument value = arg 1"
)
assert (
msg(m.arg_inspect_func("A1", "A2"))
== """
loading ArgInspector2 argument WITH conversion allowed. Argument value = A1
loading ArgInspector1 argument WITHOUT conversion allowed. Argument value = A2
"""
)
assert m.floats_preferred(4) == 2.0
assert m.floats_only(4.0) == 2.0
with pytest.raises(TypeError) as excinfo:
m.floats_only(4)
assert msg(excinfo.value) == """
assert (
msg(excinfo.value)
== """
floats_only(): incompatible function arguments. The following argument types are supported:
1. (f: float) -> float
Invoked with: 4
"""
)
assert m.ints_preferred(4) == 2
assert m.ints_preferred(True) == 0
with pytest.raises(TypeError) as excinfo:
m.ints_preferred(4.0)
assert msg(excinfo.value) == """
assert (
msg(excinfo.value)
== """
ints_preferred(): incompatible function arguments. The following argument types are supported:
1. (i: int) -> int
Invoked with: 4.0
""" # noqa: E501 line too long
)
assert m.ints_only(4) == 2
with pytest.raises(TypeError) as excinfo:
m.ints_only(4.0)
assert msg(excinfo.value) == """
assert (
msg(excinfo.value)
== """
ints_only(): incompatible function arguments. The following argument types are supported:
1. (i: int) -> int
Invoked with: 4.0
"""
)
def test_custom_caster_destruction():
......
tests/test_docstring_options.py
......@@ -18,10 +18,10 @@ def test_docstring_options():
assert m.test_overloaded3.__doc__ == "Overload docstr"
# options.enable_function_signatures()
assert m.test_function3.__doc__ .startswith("test_function3(a: int, b: int) -> None")
assert m.test_function3.__doc__.startswith("test_function3(a: int, b: int) -> None")
assert m.test_function4.__doc__ .startswith("test_function4(a: int, b: int) -> None")
assert m.test_function4.__doc__ .endswith("A custom docstring\n")
assert m.test_function4.__doc__.startswith("test_function4(a: int, b: int) -> None")
assert m.test_function4.__doc__.endswith("A custom docstring\n")
# options.disable_function_signatures()
# options.disable_user_defined_docstrings()
......@@ -31,8 +31,8 @@ def test_docstring_options():
assert m.test_function6.__doc__ == "A custom docstring"
# RAII destructor
assert m.test_function7.__doc__ .startswith("test_function7(a: int, b: int) -> None")
assert m.test_function7.__doc__ .endswith("A custom docstring\n")
assert m.test_function7.__doc__.startswith("test_function7(a: int, b: int) -> None")
assert m.test_function7.__doc__.endswith("A custom docstring\n")
# Suppression of user-defined docstrings for non-function objects
assert not m.DocstringTestFoo.__doc__
......
tests/test_enum.py
......@@ -24,18 +24,24 @@ def test_unscoped_enum():
assert m.UnscopedEnum.EOne.name == "EOne"
# __members__ property
assert m.UnscopedEnum.__members__ == \
{"EOne": m.UnscopedEnum.EOne, "ETwo": m.UnscopedEnum.ETwo, "EThree": m.UnscopedEnum.EThree}
assert m.UnscopedEnum.__members__ == {
"EOne": m.UnscopedEnum.EOne,
"ETwo": m.UnscopedEnum.ETwo,
"EThree": m.UnscopedEnum.EThree,
}
# __members__ readonly
with pytest.raises(AttributeError):
m.UnscopedEnum.__members__ = {}
# __members__ returns a copy
foo = m.UnscopedEnum.__members__
foo["bar"] = "baz"
assert m.UnscopedEnum.__members__ == \
{"EOne": m.UnscopedEnum.EOne, "ETwo": m.UnscopedEnum.ETwo, "EThree": m.UnscopedEnum.EThree}
assert m.UnscopedEnum.__members__ == {
"EOne": m.UnscopedEnum.EOne,
"ETwo": m.UnscopedEnum.ETwo,
"EThree": m.UnscopedEnum.EThree,
}
for docstring_line in '''An unscoped enumeration
for docstring_line in """An unscoped enumeration
Members:
......@@ -43,7 +49,9 @@ Members:
ETwo : Docstring for ETwo
EThree : Docstring for EThree'''.split('\n'):
EThree : Docstring for EThree""".split(
"\n"
):
assert docstring_line in m.UnscopedEnum.__doc__
# Unscoped enums will accept ==/!= int comparisons
......@@ -53,10 +61,10 @@ Members:
assert y != 3
assert 3 != y
# Compare with None
assert (y != None) # noqa: E711
assert y != None # noqa: E711
assert not (y == None) # noqa: E711
# Compare with an object
assert (y != object())
assert y != object()
assert not (y == object())
# Compare with string
assert y != "2"
......@@ -119,10 +127,10 @@ def test_scoped_enum():
assert z != 3
assert 3 != z
# Compare with None
assert (z != None) # noqa: E711
assert z != None # noqa: E711
assert not (z == None) # noqa: E711
# Compare with an object
assert (z != object())
assert z != object()
assert not (z == object())
# Scoped enums will *NOT* accept >, <, >= and <= int comparisons (Will throw exceptions)
with pytest.raises(TypeError):
......
tests/test_eval_call.py
# -*- coding: utf-8 -*-
# This file is called from 'test_eval.py'
if 'call_test2' in locals():
if "call_test2" in locals():
call_test2(y) # noqa: F821 undefined name
tests/test_exceptions.py
......@@ -54,27 +54,27 @@ def test_python_alreadyset_in_destructor(monkeypatch, capsys):
hooked = False
triggered = [False] # mutable, so Python 2.7 closure can modify it
if hasattr(sys, 'unraisablehook'): # Python 3.8+
if hasattr(sys, "unraisablehook"): # Python 3.8+
hooked = True
default_hook = sys.unraisablehook
def hook(unraisable_hook_args):
exc_type, exc_value, exc_tb, err_msg, obj = unraisable_hook_args
if obj == 'already_set demo':
if obj == "already_set demo":
triggered[0] = True
default_hook(unraisable_hook_args)
return
# Use monkeypatch so pytest can apply and remove the patch as appropriate
monkeypatch.setattr(sys, 'unraisablehook', hook)
monkeypatch.setattr(sys, "unraisablehook", hook)
assert m.python_alreadyset_in_destructor('already_set demo') is True
assert m.python_alreadyset_in_destructor("already_set demo") is True
if hooked:
assert triggered[0] is True
_, captured_stderr = capsys.readouterr()
# Error message is different in Python 2 and 3, check for words that appear in both
assert 'ignored' in captured_stderr and 'already_set demo' in captured_stderr
assert "ignored" in captured_stderr and "already_set demo" in captured_stderr
def test_exception_matches():
......@@ -107,7 +107,9 @@ def test_custom(msg):
# Can we fall-through to the default handler?
with pytest.raises(RuntimeError) as excinfo:
m.throws_logic_error()
assert msg(excinfo.value) == "this error should fall through to the standard handler"
assert (
msg(excinfo.value) == "this error should fall through to the standard handler"
)
# OverFlow error translation.
with pytest.raises(OverflowError) as excinfo:
......@@ -166,7 +168,13 @@ def test_nested_throws(capture):
# C++ -> Python -> C++ -> Python
with capture:
m.try_catch(
m.MyException5, pycatch, m.MyException, m.try_catch, m.MyException, throw_myex5)
m.MyException5,
pycatch,
m.MyException,
m.try_catch,
m.MyException,
throw_myex5,
)
assert str(capture).startswith("MyException5: nested error 5")
# C++ -> Python -> C++
......@@ -182,7 +190,6 @@ def test_nested_throws(capture):
# This can often happen if you wrap a pybind11 class in a Python wrapper
def test_invalid_repr():
class MyRepr(object):
def __repr__(self):
raise AttributeError("Example error")
......
tests/test_gil_scoped.py
......@@ -21,6 +21,7 @@ def _run_in_process(target, *args, **kwargs):
def _python_to_cpp_to_python():
"""Calls different C++ functions that come back to Python."""
class ExtendedVirtClass(m.VirtClass):
def virtual_func(self):
pass
......@@ -74,7 +75,9 @@ def test_python_to_cpp_to_python_from_thread_multiple_sequential():
It runs in a separate process to be able to stop and assert if it deadlocks.
"""
assert _run_in_process(_python_to_cpp_to_python_from_threads, 8, parallel=False) == 0
assert (
_run_in_process(_python_to_cpp_to_python_from_threads, 8, parallel=False) == 0
)
# TODO: FIXME on macOS Python 3.9
......
tests/test_iostream.py
......@@ -18,6 +18,7 @@ try:
# Python 3.4
from contextlib import redirect_stdout
except ImportError:
@contextmanager
def redirect_stdout(target):
original = sys.stdout
......@@ -25,10 +26,12 @@ except ImportError:
yield
sys.stdout = original
try:
# Python 3.5
from contextlib import redirect_stderr
except ImportError:
@contextmanager
def redirect_stderr(target):
original = sys.stderr
......@@ -42,16 +45,16 @@ def test_captured(capsys):
m.captured_output(msg)
stdout, stderr = capsys.readouterr()
assert stdout == msg
assert stderr == ''
assert stderr == ""
m.captured_output_default(msg)
stdout, stderr = capsys.readouterr()
assert stdout == msg
assert stderr == ''
assert stderr == ""
m.captured_err(msg)
stdout, stderr = capsys.readouterr()
assert stdout == ''
assert stdout == ""
assert stderr == msg
......@@ -63,7 +66,7 @@ def test_captured_large_string(capsys):
m.captured_output_default(msg)
stdout, stderr = capsys.readouterr()
assert stdout == msg
assert stderr == ''
assert stderr == ""
def test_guard_capture(capsys):
......@@ -71,7 +74,7 @@ def test_guard_capture(capsys):
m.guard_output(msg)
stdout, stderr = capsys.readouterr()
assert stdout == msg
assert stderr == ''
assert stderr == ""
def test_series_captured(capture):
......@@ -88,7 +91,7 @@ def test_flush(capfd):
with m.ostream_redirect():
m.noisy_function(msg, flush=False)
stdout, stderr = capfd.readouterr()
assert stdout == ''
assert stdout == ""
m.noisy_function(msg2, flush=True)
stdout, stderr = capfd.readouterr()
......@@ -107,15 +110,15 @@ def test_not_captured(capfd):
m.raw_output(msg)
stdout, stderr = capfd.readouterr()
assert stdout == msg
assert stderr == ''
assert stream.getvalue() == ''
assert stderr == ""
assert stream.getvalue() == ""
stream = StringIO()
with redirect_stdout(stream):
m.captured_output(msg)
stdout, stderr = capfd.readouterr()
assert stdout == ''
assert stderr == ''
assert stdout == ""
assert stderr == ""
assert stream.getvalue() == msg
......@@ -125,16 +128,16 @@ def test_err(capfd):
with redirect_stderr(stream):
m.raw_err(msg)
stdout, stderr = capfd.readouterr()
assert stdout == ''
assert stdout == ""
assert stderr == msg
assert stream.getvalue() == ''
assert stream.getvalue() == ""
stream = StringIO()
with redirect_stderr(stream):
m.captured_err(msg)
stdout, stderr = capfd.readouterr()
assert stdout == ''
assert stderr == ''
assert stdout == ""
assert stderr == ""
assert stream.getvalue() == msg
......@@ -146,8 +149,8 @@ def test_multi_captured(capfd):
m.captured_output("c")
m.raw_output("d")
stdout, stderr = capfd.readouterr()
assert stdout == 'bd'
assert stream.getvalue() == 'ac'
assert stdout == "bd"
assert stream.getvalue() == "ac"
def test_dual(capsys):
......@@ -164,14 +167,14 @@ def test_redirect(capfd):
m.raw_output(msg)
stdout, stderr = capfd.readouterr()
assert stdout == msg
assert stream.getvalue() == ''
assert stream.getvalue() == ""
stream = StringIO()
with redirect_stdout(stream):
with m.ostream_redirect():
m.raw_output(msg)
stdout, stderr = capfd.readouterr()
assert stdout == ''
assert stdout == ""
assert stream.getvalue() == msg
stream = StringIO()
......@@ -179,7 +182,7 @@ def test_redirect(capfd):
m.raw_output(msg)
stdout, stderr = capfd.readouterr()
assert stdout == msg
assert stream.getvalue() == ''
assert stream.getvalue() == ""
def test_redirect_err(capfd):
......@@ -193,7 +196,7 @@ def test_redirect_err(capfd):
m.raw_err(msg2)
stdout, stderr = capfd.readouterr()
assert stdout == msg
assert stderr == ''
assert stderr == ""
assert stream.getvalue() == msg2
......@@ -209,7 +212,7 @@ def test_redirect_both(capfd):
m.raw_output(msg)
m.raw_err(msg2)
stdout, stderr = capfd.readouterr()
assert stdout == ''
assert stderr == ''
assert stdout == ""
assert stderr == ""
assert stream.getvalue() == msg
assert stream2.getvalue() == msg2
tests/test_kwargs_and_defaults.py
......@@ -15,11 +15,17 @@ def test_function_signatures(doc):
assert doc(m.kw_func_udl) == "kw_func_udl(x: int, y: int = 300) -> str"
assert doc(m.kw_func_udl_z) == "kw_func_udl_z(x: int, y: int = 0) -> str"
assert doc(m.args_function) == "args_function(*args) -> tuple"
assert doc(m.args_kwargs_function) == "args_kwargs_function(*args, **kwargs) -> tuple"
assert doc(m.KWClass.foo0) == \
"foo0(self: m.kwargs_and_defaults.KWClass, arg0: int, arg1: float) -> None"
assert doc(m.KWClass.foo1) == \
"foo1(self: m.kwargs_and_defaults.KWClass, x: int, y: float) -> None"
assert (
doc(m.args_kwargs_function) == "args_kwargs_function(*args, **kwargs) -> tuple"
)
assert (
doc(m.KWClass.foo0)
== "foo0(self: m.kwargs_and_defaults.KWClass, arg0: int, arg1: float) -> None"
)
assert (
doc(m.KWClass.foo1)
== "foo1(self: m.kwargs_and_defaults.KWClass, x: int, y: float) -> None"
)
def test_named_arguments(msg):
......@@ -40,7 +46,9 @@ def test_named_arguments(msg):
# noinspection PyArgumentList
m.kw_func2(x=5, y=10, z=12)
assert excinfo.match(
r'(?s)^kw_func2\(\): incompatible.*Invoked with: kwargs: ((x=5|y=10|z=12)(, |$))' + '{3}$')
r"(?s)^kw_func2\(\): incompatible.*Invoked with: kwargs: ((x=5|y=10|z=12)(, |$))"
+ "{3}$"
)
assert m.kw_func4() == "{13 17}"
assert m.kw_func4(myList=[1, 2, 3]) == "{1 2 3}"
......@@ -50,11 +58,11 @@ def test_named_arguments(msg):
def test_arg_and_kwargs():
args = 'arg1_value', 'arg2_value', 3
args = "arg1_value", "arg2_value", 3
assert m.args_function(*args) == args
args = 'a1', 'a2'
kwargs = dict(arg3='a3', arg4=4)
args = "a1", "a2"
kwargs = dict(arg3="a3", arg4=4)
assert m.args_kwargs_function(*args, **kwargs) == (args, kwargs)
......@@ -68,47 +76,71 @@ def test_mixed_args_and_kwargs(msg):
assert mpa(1, 2.5) == (1, 2.5, ())
with pytest.raises(TypeError) as excinfo:
assert mpa(1)
assert msg(excinfo.value) == """
assert (
msg(excinfo.value)
== """
mixed_plus_args(): incompatible function arguments. The following argument types are supported:
1. (arg0: int, arg1: float, *args) -> tuple
Invoked with: 1
""" # noqa: E501 line too long
)
with pytest.raises(TypeError) as excinfo:
assert mpa()
assert msg(excinfo.value) == """
assert (
msg(excinfo.value)
== """
mixed_plus_args(): incompatible function arguments. The following argument types are supported:
1. (arg0: int, arg1: float, *args) -> tuple
Invoked with:
""" # noqa: E501 line too long
)
assert mpk(-2, 3.5, pi=3.14159, e=2.71828) == (-2, 3.5, {'e': 2.71828, 'pi': 3.14159})
assert mpk(-2, 3.5, pi=3.14159, e=2.71828) == (
-2,
3.5,
{"e": 2.71828, "pi": 3.14159},
)
assert mpak(7, 7.7, 7.77, 7.777, 7.7777, minusseven=-7) == (
7, 7.7, (7.77, 7.777, 7.7777), {'minusseven': -7})
7,
7.7,
(7.77, 7.777, 7.7777),
{"minusseven": -7},
)
assert mpakd() == (1, 3.14159, (), {})
assert mpakd(3) == (3, 3.14159, (), {})
assert mpakd(j=2.71828) == (1, 2.71828, (), {})
assert mpakd(k=42) == (1, 3.14159, (), {'k': 42})
assert mpakd(k=42) == (1, 3.14159, (), {"k": 42})
assert mpakd(1, 1, 2, 3, 5, 8, then=13, followedby=21) == (
1, 1, (2, 3, 5, 8), {'then': 13, 'followedby': 21})
1,
1,
(2, 3, 5, 8),
{"then": 13, "followedby": 21},
)
# Arguments specified both positionally and via kwargs should fail:
with pytest.raises(TypeError) as excinfo:
assert mpakd(1, i=1)
assert msg(excinfo.value) == """
assert (
msg(excinfo.value)
== """
mixed_plus_args_kwargs_defaults(): incompatible function arguments. The following argument types are supported:
1. (i: int = 1, j: float = 3.14159, *args, **kwargs) -> tuple
Invoked with: 1; kwargs: i=1
""" # noqa: E501 line too long
)
with pytest.raises(TypeError) as excinfo:
assert mpakd(1, 2, j=1)
assert msg(excinfo.value) == """
assert (
msg(excinfo.value)
== """
mixed_plus_args_kwargs_defaults(): incompatible function arguments. The following argument types are supported:
1. (i: int = 1, j: float = 3.14159, *args, **kwargs) -> tuple
Invoked with: 1, 2; kwargs: j=1
""" # noqa: E501 line too long
)
def test_keyword_only_args(msg):
......@@ -134,9 +166,9 @@ def test_keyword_only_args(msg):
assert m.kw_only_mixed(j=2, i=3) == (3, 2)
assert m.kw_only_mixed(i=2, j=3) == (2, 3)
assert m.kw_only_plus_more(4, 5, k=6, extra=7) == (4, 5, 6, {'extra': 7})
assert m.kw_only_plus_more(3, k=5, j=4, extra=6) == (3, 4, 5, {'extra': 6})
assert m.kw_only_plus_more(2, k=3, extra=4) == (2, -1, 3, {'extra': 4})
assert m.kw_only_plus_more(4, 5, k=6, extra=7) == (4, 5, 6, {"extra": 7})
assert m.kw_only_plus_more(3, k=5, j=4, extra=6) == (3, 4, 5, {"extra": 6})
assert m.kw_only_plus_more(2, k=3, extra=4) == (2, -1, 3, {"extra": 4})
with pytest.raises(TypeError) as excinfo:
assert m.kw_only_mixed(i=1) == (1,)
......@@ -144,9 +176,12 @@ def test_keyword_only_args(msg):
with pytest.raises(RuntimeError) as excinfo:
m.register_invalid_kw_only(m)
assert msg(excinfo.value) == """
assert (
msg(excinfo.value)
== """
arg(): cannot specify an unnamed argument after an kw_only() annotation
"""
)
def test_positional_only_args(msg):
......@@ -194,7 +229,10 @@ def test_signatures():
assert "kw_only_mixed(i: int, *, j: int) -> tuple\n" == m.kw_only_mixed.__doc__
assert "pos_only_all(i: int, j: int, /) -> tuple\n" == m.pos_only_all.__doc__
assert "pos_only_mix(i: int, /, j: int) -> tuple\n" == m.pos_only_mix.__doc__
assert "pos_kw_only_mix(i: int, /, j: int, *, k: int) -> tuple\n" == m.pos_kw_only_mix.__doc__
assert (
"pos_kw_only_mix(i: int, /, j: int, *, k: int) -> tuple\n"
== m.pos_kw_only_mix.__doc__
)
@pytest.mark.xfail("env.PYPY and env.PY2", reason="PyPy2 doesn't double count")
......@@ -219,11 +257,18 @@ def test_args_refcount():
assert m.args_function(-1, myval) == (-1, myval)
assert refcount(myval) == expected
assert m.mixed_plus_args_kwargs(5, 6.0, myval, a=myval) == (5, 6.0, (myval,), {"a": myval})
assert m.mixed_plus_args_kwargs(5, 6.0, myval, a=myval) == (
5,
6.0,
(myval,),
{"a": myval},
)
assert refcount(myval) == expected
assert m.args_kwargs_function(7, 8, myval, a=1, b=myval) == \
((7, 8, myval), {"a": 1, "b": myval})
assert m.args_kwargs_function(7, 8, myval, a=1, b=myval) == (
(7, 8, myval),
{"a": 1, "b": myval},
)
assert refcount(myval) == expected
exp3 = refcount(myval, myval, myval)
......
tests/test_local_bindings.py
......@@ -36,8 +36,8 @@ def test_local_bindings():
assert i2.get() == 11
assert i2.get2() == 12
assert not hasattr(i1, 'get2')
assert not hasattr(i2, 'get3')
assert not hasattr(i1, "get2")
assert not hasattr(i2, "get3")
# Loading within the local module
assert m.local_value(i1) == 5
......@@ -55,7 +55,9 @@ def test_nonlocal_failure():
with pytest.raises(RuntimeError) as excinfo:
cm.register_nonlocal()
assert str(excinfo.value) == 'generic_type: type "NonLocalType" is already registered!'
assert (
str(excinfo.value) == 'generic_type: type "NonLocalType" is already registered!'
)
def test_duplicate_local():
......@@ -63,9 +65,12 @@ def test_duplicate_local():
with pytest.raises(RuntimeError) as excinfo:
m.register_local_external()
import pybind11_tests
assert str(excinfo.value) == (
'generic_type: type "LocalExternal" is already registered!'
if hasattr(pybind11_tests, 'class_') else 'test_class not enabled')
if hasattr(pybind11_tests, "class_")
else "test_class not enabled"
)
def test_stl_bind_local():
......@@ -98,8 +103,8 @@ def test_stl_bind_local():
d1["b"] = v1[1]
d2["c"] = v2[0]
d2["d"] = v2[1]
assert {i: d1[i].get() for i in d1} == {'a': 0, 'b': 1}
assert {i: d2[i].get() for i in d2} == {'c': 2, 'd': 3}
assert {i: d1[i].get() for i in d1} == {"a": 0, "b": 1}
assert {i: d2[i].get() for i in d2} == {"c": 2, "d": 3}
def test_stl_bind_global():
......@@ -107,15 +112,21 @@ def test_stl_bind_global():
with pytest.raises(RuntimeError) as excinfo:
cm.register_nonlocal_map()
assert str(excinfo.value) == 'generic_type: type "NonLocalMap" is already registered!'
assert (
str(excinfo.value) == 'generic_type: type "NonLocalMap" is already registered!'
)
with pytest.raises(RuntimeError) as excinfo:
cm.register_nonlocal_vec()
assert str(excinfo.value) == 'generic_type: type "NonLocalVec" is already registered!'
assert (
str(excinfo.value) == 'generic_type: type "NonLocalVec" is already registered!'
)
with pytest.raises(RuntimeError) as excinfo:
cm.register_nonlocal_map2()
assert str(excinfo.value) == 'generic_type: type "NonLocalMap2" is already registered!'
assert (
str(excinfo.value) == 'generic_type: type "NonLocalMap2" is already registered!'
)
def test_mixed_local_global():
......@@ -123,6 +134,7 @@ def test_mixed_local_global():
type can be registered even if the type is already registered globally. With the module,
casting will go to the local type; outside the module casting goes to the global type."""
import pybind11_cross_module_tests as cm
m.register_mixed_global()
m.register_mixed_local()
......@@ -145,13 +157,26 @@ def test_mixed_local_global():
a.append(cm.get_mixed_gl(11))
a.append(cm.get_mixed_lg(12))
assert [x.get() for x in a] == \
[101, 1002, 103, 1004, 105, 1006, 207, 2008, 109, 1010, 211, 2012]
assert [x.get() for x in a] == [
101,
1002,
103,
1004,
105,
1006,
207,
2008,
109,
1010,
211,
2012,
]
def test_internal_locals_differ():
"""Makes sure the internal local type map differs across the two modules"""
import pybind11_cross_module_tests as cm
assert m.local_cpp_types_addr() != cm.local_cpp_types_addr()
......@@ -169,12 +194,15 @@ def test_stl_caster_vs_stl_bind(msg):
assert m.load_vector_via_caster(v2) == 6
with pytest.raises(TypeError) as excinfo:
cm.load_vector_via_binding(v2) == 6
assert msg(excinfo.value) == """
assert (
msg(excinfo.value)
== """
load_vector_via_binding(): incompatible function arguments. The following argument types are supported:
1. (arg0: pybind11_cross_module_tests.VectorInt) -> int
Invoked with: [1, 2, 3]
""" # noqa: E501 line too long
)
def test_cross_module_calls():
......
tests/test_methods_and_attributes.py
......@@ -40,17 +40,17 @@ def test_methods_and_attributes():
assert instance1.overloaded(0) == "(int)"
assert instance1.overloaded(1, 1.0) == "(int, float)"
assert instance1.overloaded(2.0, 2) == "(float, int)"
assert instance1.overloaded(3, 3) == "(int, int)"
assert instance1.overloaded(4., 4.) == "(float, float)"
assert instance1.overloaded(3, 3) == "(int, int)"
assert instance1.overloaded(4.0, 4.0) == "(float, float)"
assert instance1.overloaded_const(-3) == "(int) const"
assert instance1.overloaded_const(5, 5.0) == "(int, float) const"
assert instance1.overloaded_const(6.0, 6) == "(float, int) const"
assert instance1.overloaded_const(7, 7) == "(int, int) const"
assert instance1.overloaded_const(8., 8.) == "(float, float) const"
assert instance1.overloaded_const(7, 7) == "(int, int) const"
assert instance1.overloaded_const(8.0, 8.0) == "(float, float) const"
assert instance1.overloaded_float(1, 1) == "(float, float)"
assert instance1.overloaded_float(1, 1.) == "(float, float)"
assert instance1.overloaded_float(1., 1) == "(float, float)"
assert instance1.overloaded_float(1., 1.) == "(float, float)"
assert instance1.overloaded_float(1, 1.0) == "(float, float)"
assert instance1.overloaded_float(1.0, 1) == "(float, float)"
assert instance1.overloaded_float(1.0, 1.0) == "(float, float)"
assert instance1.value == 320
instance1.value = 100
......@@ -193,7 +193,10 @@ def test_metaclass_override():
assert type(m.MetaclassOverride).__name__ == "type"
assert m.MetaclassOverride.readonly == 1
assert type(m.MetaclassOverride.__dict__["readonly"]).__name__ == "pybind11_static_property"
assert (
type(m.MetaclassOverride.__dict__["readonly"]).__name__
== "pybind11_static_property"
)
# Regular `type` replaces the property instead of calling `__set__()`
m.MetaclassOverride.readonly = 2
......@@ -206,22 +209,26 @@ def test_no_mixed_overloads():
with pytest.raises(RuntimeError) as excinfo:
m.ExampleMandA.add_mixed_overloads1()
assert (str(excinfo.value) ==
"overloading a method with both static and instance methods is not supported; " +
("compile in debug mode for more details" if not debug_enabled else
"error while attempting to bind static method ExampleMandA.overload_mixed1"
"(arg0: float) -> str")
)
assert str(
excinfo.value
) == "overloading a method with both static and instance methods is not supported; " + (
"compile in debug mode for more details"
if not debug_enabled
else "error while attempting to bind static method ExampleMandA.overload_mixed1"
"(arg0: float) -> str"
)
with pytest.raises(RuntimeError) as excinfo:
m.ExampleMandA.add_mixed_overloads2()
assert (str(excinfo.value) ==
"overloading a method with both static and instance methods is not supported; " +
("compile in debug mode for more details" if not debug_enabled else
"error while attempting to bind instance method ExampleMandA.overload_mixed2"
"(self: pybind11_tests.methods_and_attributes.ExampleMandA, arg0: int, arg1: int)"
" -> str")
)
assert str(
excinfo.value
) == "overloading a method with both static and instance methods is not supported; " + (
"compile in debug mode for more details"
if not debug_enabled
else "error while attempting to bind instance method ExampleMandA.overload_mixed2"
"(self: pybind11_tests.methods_and_attributes.ExampleMandA, arg0: int, arg1: int)"
" -> str"
)
@pytest.mark.parametrize("access", ["ro", "rw", "static_ro", "static_rw"])
......@@ -333,8 +340,8 @@ def test_bad_arg_default(msg):
assert msg(excinfo.value) == (
"arg(): could not convert default argument 'a: UnregisteredType' in function "
"'should_fail' into a Python object (type not registered yet?)"
if debug_enabled else
"arg(): could not convert default argument into a Python object (type not registered "
if debug_enabled
else "arg(): could not convert default argument into a Python object (type not registered "
"yet?). Compile in debug mode for more information."
)
......@@ -343,8 +350,8 @@ def test_bad_arg_default(msg):
assert msg(excinfo.value) == (
"arg(): could not convert default argument 'UnregisteredType' in function "
"'should_fail' into a Python object (type not registered yet?)"
if debug_enabled else
"arg(): could not convert default argument into a Python object (type not registered "
if debug_enabled
else "arg(): could not convert default argument into a Python object (type not registered "
"yet?). Compile in debug mode for more information."
)
......@@ -381,12 +388,15 @@ def test_accepts_none(msg):
# The first one still raises because you can't pass None as a lvalue reference arg:
with pytest.raises(TypeError) as excinfo:
assert m.ok_none1(None) == -1
assert msg(excinfo.value) == """
assert (
msg(excinfo.value)
== """
ok_none1(): incompatible function arguments. The following argument types are supported:
1. (arg0: m.methods_and_attributes.NoneTester) -> int
Invoked with: None
"""
)
# The rest take the argument as pointer or holder, and accept None:
assert m.ok_none2(None) == -1
......@@ -402,13 +412,16 @@ def test_str_issue(msg):
with pytest.raises(TypeError) as excinfo:
str(m.StrIssue("no", "such", "constructor"))
assert msg(excinfo.value) == """
assert (
msg(excinfo.value)
== """
__init__(): incompatible constructor arguments. The following argument types are supported:
1. m.methods_and_attributes.StrIssue(arg0: int)
2. m.methods_and_attributes.StrIssue()
Invoked with: 'no', 'such', 'constructor'
"""
)
def test_unregistered_base_implementations():
......@@ -441,7 +454,7 @@ def test_ref_qualified():
def test_overload_ordering():
'Check to see if the normal overload order (first defined) and prepend overload order works'
"Check to see if the normal overload order (first defined) and prepend overload order works"
assert m.overload_order("string") == 1
assert m.overload_order(0) == 4
......@@ -449,8 +462,14 @@ def test_overload_ordering():
uni_name = type(u"").__name__
assert "1. overload_order(arg0: int) -> int" in m.overload_order.__doc__
assert "2. overload_order(arg0: {}) -> int".format(uni_name) in m.overload_order.__doc__
assert "3. overload_order(arg0: {}) -> int".format(uni_name) in m.overload_order.__doc__
assert (
"2. overload_order(arg0: {}) -> int".format(uni_name)
in m.overload_order.__doc__
)
assert (
"3. overload_order(arg0: {}) -> int".format(uni_name)
in m.overload_order.__doc__
)
assert "4. overload_order(arg0: int) -> int" in m.overload_order.__doc__
with pytest.raises(TypeError) as err:
......
tests/test_modules.py
......@@ -6,9 +6,13 @@ from pybind11_tests import ConstructorStats
def test_nested_modules():
import pybind11_tests
assert pybind11_tests.__name__ == "pybind11_tests"
assert pybind11_tests.modules.__name__ == "pybind11_tests.modules"
assert pybind11_tests.modules.subsubmodule.__name__ == "pybind11_tests.modules.subsubmodule"
assert (
pybind11_tests.modules.subsubmodule.__name__
== "pybind11_tests.modules.subsubmodule"
)
assert m.__name__ == "pybind11_tests.modules"
assert ms.__name__ == "pybind11_tests.modules.subsubmodule"
......@@ -35,7 +39,7 @@ def test_reference_internal():
del b
assert astats.alive() == 0
assert bstats.alive() == 0
assert astats.values() == ['1', '2', '42', '43']
assert astats.values() == ["1", "2", "42", "43"]
assert bstats.values() == []
assert astats.default_constructions == 0
assert bstats.default_constructions == 1
......@@ -54,7 +58,7 @@ def test_importing():
from collections import OrderedDict
assert OD is OrderedDict
assert str(OD([(1, 'a'), (2, 'b')])) == "OrderedDict([(1, 'a'), (2, 'b')])"
assert str(OD([(1, "a"), (2, "b")])) == "OrderedDict([(1, 'a'), (2, 'b')])"
def test_pydoc():
......
tests/test_multiple_inheritance.py
......@@ -57,7 +57,6 @@ def test_multiple_inheritance_mix2():
@pytest.mark.skipif("env.PYPY and env.PY2")
@pytest.mark.xfail("env.PYPY and not env.PY2")
def test_multiple_inheritance_python():
class MI1(m.Base1, m.Base2):
def __init__(self, i, j):
m.Base1.__init__(self, i)
......@@ -163,7 +162,6 @@ def test_multiple_inheritance_python():
def test_multiple_inheritance_python_many_bases():
class MIMany14(m.BaseN1, m.BaseN2, m.BaseN3, m.BaseN4):
def __init__(self):
m.BaseN1.__init__(self, 1)
......@@ -178,8 +176,16 @@ def test_multiple_inheritance_python_many_bases():
m.BaseN7.__init__(self, 7)
m.BaseN8.__init__(self, 8)
class MIMany916(m.BaseN9, m.BaseN10, m.BaseN11, m.BaseN12, m.BaseN13, m.BaseN14, m.BaseN15,
m.BaseN16):
class MIMany916(
m.BaseN9,
m.BaseN10,
m.BaseN11,
m.BaseN12,
m.BaseN13,
m.BaseN14,
m.BaseN15,
m.BaseN16,
):
def __init__(self):
m.BaseN9.__init__(self, 9)
m.BaseN10.__init__(self, 10)
......@@ -225,7 +231,6 @@ def test_multiple_inheritance_python_many_bases():
def test_multiple_inheritance_virtbase():
class MITypePy(m.Base12a):
def __init__(self, i, j):
m.Base12a.__init__(self, i, j)
......@@ -238,7 +243,7 @@ def test_multiple_inheritance_virtbase():
def test_mi_static_properties():
"""Mixing bases with and without static properties should be possible
and the result should be independent of base definition order"""
and the result should be independent of base definition order"""
for d in (m.VanillaStaticMix1(), m.VanillaStaticMix2()):
assert d.vanilla() == "Vanilla"
......
tests/test_opaque_types.py
......@@ -32,12 +32,15 @@ def test_pointers(msg):
with pytest.raises(TypeError) as excinfo:
m.get_void_ptr_value([1, 2, 3]) # This should not work
assert msg(excinfo.value) == """
assert (
msg(excinfo.value)
== """
get_void_ptr_value(): incompatible function arguments. The following argument types are supported:
1. (arg0: capsule) -> int
Invoked with: [1, 2, 3]
""" # noqa: E501 line too long
)
assert m.return_null_str() is None
assert m.get_null_str_value(m.return_null_str()) is not None
......
tests/test_operator_overloading.py
......@@ -56,23 +56,23 @@ def test_operator_overloading():
del v3
assert cstats.alive() == 0
assert cstats.values() == [
'[1.000000, 2.000000]',
'[3.000000, -1.000000]',
'[1.000000, 2.000000]',
'[-3.000000, 1.000000]',
'[4.000000, 1.000000]',
'[-2.000000, 3.000000]',
'[-7.000000, -6.000000]',
'[9.000000, 10.000000]',
'[8.000000, 16.000000]',
'[0.125000, 0.250000]',
'[7.000000, 6.000000]',
'[9.000000, 10.000000]',
'[8.000000, 16.000000]',
'[8.000000, 4.000000]',
'[3.000000, -2.000000]',
'[3.000000, -0.500000]',
'[6.000000, -2.000000]',
"[1.000000, 2.000000]",
"[3.000000, -1.000000]",
"[1.000000, 2.000000]",
"[-3.000000, 1.000000]",
"[4.000000, 1.000000]",
"[-2.000000, 3.000000]",
"[-7.000000, -6.000000]",
"[9.000000, 10.000000]",
"[8.000000, 16.000000]",
"[0.125000, 0.250000]",
"[7.000000, 6.000000]",
"[9.000000, 10.000000]",
"[8.000000, 16.000000]",
"[8.000000, 4.000000]",
"[3.000000, -2.000000]",
"[3.000000, -0.500000]",
"[6.000000, -2.000000]",
]
assert cstats.default_constructions == 0
assert cstats.copy_constructions == 0
......
tests/test_pickling.py
......@@ -42,5 +42,6 @@ def test_roundtrip_with_dict(cls_name):
def test_enum_pickle():
from pybind11_tests import enums as e
data = pickle.dumps(e.EOne, 2)
assert e.EOne == pickle.loads(data)
tests/test_sequences_and_iterators.py
......@@ -10,7 +10,9 @@ def isclose(a, b, rel_tol=1e-05, abs_tol=0.0):
def allclose(a_list, b_list, rel_tol=1e-05, abs_tol=0.0):
return all(isclose(a, b, rel_tol=rel_tol, abs_tol=abs_tol) for a, b in zip(a_list, b_list))
return all(
isclose(a, b, rel_tol=rel_tol, abs_tol=abs_tol) for a, b in zip(a_list, b_list)
)
def test_generalized_iterators():
......@@ -51,7 +53,7 @@ def test_sequence():
cstats = ConstructorStats.get(m.Sequence)
s = m.Sequence(5)
assert cstats.values() == ['of size', '5']
assert cstats.values() == ["of size", "5"]
assert "Sequence" in repr(s)
assert len(s) == 5
......@@ -62,16 +64,16 @@ def test_sequence():
assert isclose(s[0], 12.34) and isclose(s[3], 56.78)
rev = reversed(s)
assert cstats.values() == ['of size', '5']
assert cstats.values() == ["of size", "5"]
rev2 = s[::-1]
assert cstats.values() == ['of size', '5']
assert cstats.values() == ["of size", "5"]
it = iter(m.Sequence(0))
for _ in range(3): # __next__ must continue to raise StopIteration
with pytest.raises(StopIteration):
next(it)
assert cstats.values() == ['of size', '0']
assert cstats.values() == ["of size", "0"]
expected = [0, 56.78, 0, 0, 12.34]
assert allclose(rev, expected)
......@@ -79,7 +81,7 @@ def test_sequence():
assert rev == rev2
rev[0::2] = m.Sequence([2.0, 2.0, 2.0])
assert cstats.values() == ['of size', '3', 'from std::vector']
assert cstats.values() == ["of size", "3", "from std::vector"]
assert allclose(rev, [2, 56.78, 2, 0, 2])
......@@ -103,10 +105,11 @@ def test_sequence():
def test_sequence_length():
"""#2076: Exception raised by len(arg) should be propagated """
class BadLen(RuntimeError):
pass
class SequenceLike():
class SequenceLike:
def __getitem__(self, i):
return None
......@@ -121,17 +124,17 @@ def test_sequence_length():
def test_map_iterator():
sm = m.StringMap({'hi': 'bye', 'black': 'white'})
assert sm['hi'] == 'bye'
sm = m.StringMap({"hi": "bye", "black": "white"})
assert sm["hi"] == "bye"
assert len(sm) == 2
assert sm['black'] == 'white'
assert sm["black"] == "white"
with pytest.raises(KeyError):
assert sm['orange']
sm['orange'] = 'banana'
assert sm['orange'] == 'banana'
assert sm["orange"]
sm["orange"] = "banana"
assert sm["orange"] == "banana"
expected = {'hi': 'bye', 'black': 'white', 'orange': 'banana'}
expected = {"hi": "bye", "black": "white", "orange": "banana"}
for k in sm:
assert sm[k] == expected[k]
for k, v in sm.items():
......@@ -179,7 +182,8 @@ def test_iterator_passthrough():
"""#181: iterator passthrough did not compile"""
from pybind11_tests.sequences_and_iterators import iterator_passthrough
assert list(iterator_passthrough(iter([3, 5, 7, 9, 11, 13, 15]))) == [3, 5, 7, 9, 11, 13, 15]
values = [3, 5, 7, 9, 11, 13, 15]
assert list(iterator_passthrough(iter(values))) == values
def test_iterator_rvp():
......
tests/test_smart_ptr.py
......@@ -7,7 +7,9 @@ from pybind11_tests import ConstructorStats # noqa: E402
def test_smart_ptr(capture):
# Object1
for i, o in enumerate([m.make_object_1(), m.make_object_2(), m.MyObject1(3)], start=1):
for i, o in enumerate(
[m.make_object_1(), m.make_object_2(), m.MyObject1(3)], start=1
):
assert o.getRefCount() == 1
with capture:
m.print_object_1(o)
......@@ -16,8 +18,9 @@ def test_smart_ptr(capture):
m.print_object_4(o)
assert capture == "MyObject1[{i}]\n".format(i=i) * 4
for i, o in enumerate([m.make_myobject1_1(), m.make_myobject1_2(), m.MyObject1(6), 7],
start=4):
for i, o in enumerate(
[m.make_myobject1_1(), m.make_myobject1_2(), m.MyObject1(6), 7], start=4
):
print(o)
with capture:
if not isinstance(o, int):
......@@ -29,11 +32,15 @@ def test_smart_ptr(capture):
m.print_myobject1_2(o)
m.print_myobject1_3(o)
m.print_myobject1_4(o)
assert capture == "MyObject1[{i}]\n".format(i=i) * (4 if isinstance(o, int) else 8)
times = 4 if isinstance(o, int) else 8
assert capture == "MyObject1[{i}]\n".format(i=i) * times
cstats = ConstructorStats.get(m.MyObject1)
assert cstats.alive() == 0
expected_values = ['MyObject1[{}]'.format(i) for i in range(1, 7)] + ['MyObject1[7]'] * 4
expected_values = ["MyObject1[{}]".format(i) for i in range(1, 7)] + [
"MyObject1[7]"
] * 4
assert cstats.values() == expected_values
assert cstats.default_constructions == 0
assert cstats.copy_constructions == 0
......@@ -42,7 +49,9 @@ def test_smart_ptr(capture):
assert cstats.move_assignments == 0
# Object2
for i, o in zip([8, 6, 7], [m.MyObject2(8), m.make_myobject2_1(), m.make_myobject2_2()]):
for i, o in zip(
[8, 6, 7], [m.MyObject2(8), m.make_myobject2_1(), m.make_myobject2_2()]
):
print(o)
with capture:
m.print_myobject2_1(o)
......@@ -55,7 +64,7 @@ def test_smart_ptr(capture):
assert cstats.alive() == 1
o = None
assert cstats.alive() == 0
assert cstats.values() == ['MyObject2[8]', 'MyObject2[6]', 'MyObject2[7]']
assert cstats.values() == ["MyObject2[8]", "MyObject2[6]", "MyObject2[7]"]
assert cstats.default_constructions == 0
assert cstats.copy_constructions == 0
# assert cstats.move_constructions >= 0 # Doesn't invoke any
......@@ -63,7 +72,9 @@ def test_smart_ptr(capture):
assert cstats.move_assignments == 0
# Object3
for i, o in zip([9, 8, 9], [m.MyObject3(9), m.make_myobject3_1(), m.make_myobject3_2()]):
for i, o in zip(
[9, 8, 9], [m.MyObject3(9), m.make_myobject3_1(), m.make_myobject3_2()]
):
print(o)
with capture:
m.print_myobject3_1(o)
......@@ -76,7 +87,7 @@ def test_smart_ptr(capture):
assert cstats.alive() == 1
o = None
assert cstats.alive() == 0
assert cstats.values() == ['MyObject3[9]', 'MyObject3[8]', 'MyObject3[9]']
assert cstats.values() == ["MyObject3[9]", "MyObject3[8]", "MyObject3[9]"]
assert cstats.default_constructions == 0
assert cstats.copy_constructions == 0
# assert cstats.move_constructions >= 0 # Doesn't invoke any
......@@ -96,7 +107,7 @@ def test_smart_ptr(capture):
# ref<>
cstats = m.cstats_ref()
assert cstats.alive() == 0
assert cstats.values() == ['from pointer'] * 10
assert cstats.values() == ["from pointer"] * 10
assert cstats.default_constructions == 30
assert cstats.copy_constructions == 12
# assert cstats.move_constructions >= 0 # Doesn't invoke any
......@@ -186,7 +197,9 @@ def test_shared_ptr_from_this_and_references():
ref = s.ref # init_holder_helper(holder_ptr=false, owned=false, bad_wp=false)
assert stats.alive() == 2
assert s.set_ref(ref)
assert s.set_holder(ref) # std::enable_shared_from_this can create a holder from a reference
assert s.set_holder(
ref
) # std::enable_shared_from_this can create a holder from a reference
bad_wp = s.bad_wp # init_holder_helper(holder_ptr=false, owned=false, bad_wp=true)
assert stats.alive() == 2
......@@ -200,12 +213,16 @@ def test_shared_ptr_from_this_and_references():
assert s.set_ref(copy)
assert s.set_holder(copy)
holder_ref = s.holder_ref # init_holder_helper(holder_ptr=true, owned=false, bad_wp=false)
holder_ref = (
s.holder_ref
) # init_holder_helper(holder_ptr=true, owned=false, bad_wp=false)
assert stats.alive() == 3
assert s.set_ref(holder_ref)
assert s.set_holder(holder_ref)
holder_copy = s.holder_copy # init_holder_helper(holder_ptr=true, owned=true, bad_wp=false)
holder_copy = (
s.holder_copy
) # init_holder_helper(holder_ptr=true, owned=true, bad_wp=false)
assert stats.alive() == 3
assert s.set_ref(holder_copy)
assert s.set_holder(holder_copy)
......@@ -277,8 +294,10 @@ def test_smart_ptr_from_default():
instance = m.HeldByDefaultHolder()
with pytest.raises(RuntimeError) as excinfo:
m.HeldByDefaultHolder.load_shared_ptr(instance)
assert "Unable to load a custom holder type from a " \
"default-holder instance" in str(excinfo.value)
assert (
"Unable to load a custom holder type from a "
"default-holder instance" in str(excinfo.value)
)
def test_shared_ptr_gc():
......
tests/test_stl.py
......@@ -88,7 +88,7 @@ def test_recursive_casting():
assert m.cast_rv_nested() == [[[{"b": "rvalue", "c": "rvalue"}], [{"a": "rvalue"}]]]
assert m.cast_lv_nested() == {
"a": [[["lvalue", "lvalue"]], [["lvalue", "lvalue"]]],
"b": [[["lvalue", "lvalue"], ["lvalue", "lvalue"]]]
"b": [[["lvalue", "lvalue"], ["lvalue", "lvalue"]]],
}
# Issue #853 test case:
......@@ -106,15 +106,15 @@ def test_move_out_container():
assert [x.value for x in moved_out_list] == [0, 1, 2]
@pytest.mark.skipif(not hasattr(m, "has_optional"), reason='no <optional>')
@pytest.mark.skipif(not hasattr(m, "has_optional"), reason="no <optional>")
def test_optional():
assert m.double_or_zero(None) == 0
assert m.double_or_zero(42) == 84
pytest.raises(TypeError, m.double_or_zero, 'foo')
pytest.raises(TypeError, m.double_or_zero, "foo")
assert m.half_or_none(0) is None
assert m.half_or_none(42) == 21
pytest.raises(TypeError, m.half_or_none, 'foo')
pytest.raises(TypeError, m.half_or_none, "foo")
assert m.test_nullopt() == 42
assert m.test_nullopt(None) == 42
......@@ -134,15 +134,17 @@ def test_optional():
assert holder.member_initialized()
@pytest.mark.skipif(not hasattr(m, "has_exp_optional"), reason='no <experimental/optional>')
@pytest.mark.skipif(
not hasattr(m, "has_exp_optional"), reason="no <experimental/optional>"
)
def test_exp_optional():
assert m.double_or_zero_exp(None) == 0
assert m.double_or_zero_exp(42) == 84
pytest.raises(TypeError, m.double_or_zero_exp, 'foo')
pytest.raises(TypeError, m.double_or_zero_exp, "foo")
assert m.half_or_none_exp(0) is None
assert m.half_or_none_exp(42) == 21
pytest.raises(TypeError, m.half_or_none_exp, 'foo')
pytest.raises(TypeError, m.half_or_none_exp, "foo")
assert m.test_nullopt_exp() == 42
assert m.test_nullopt_exp(None) == 42
......@@ -160,7 +162,7 @@ def test_exp_optional():
assert holder.member_initialized()
@pytest.mark.skipif(not hasattr(m, "load_variant"), reason='no <variant>')
@pytest.mark.skipif(not hasattr(m, "load_variant"), reason="no <variant>")
def test_variant(doc):
assert m.load_variant(1) == "int"
assert m.load_variant("1") == "std::string"
......@@ -172,34 +174,44 @@ def test_variant(doc):
assert m.cast_variant() == (5, "Hello")
assert doc(m.load_variant) == "load_variant(arg0: Union[int, str, float, None]) -> str"
assert (
doc(m.load_variant) == "load_variant(arg0: Union[int, str, float, None]) -> str"
)
def test_vec_of_reference_wrapper():
"""#171: Can't return reference wrappers (or STL structures containing them)"""
assert str(m.return_vec_of_reference_wrapper(UserType(4))) == \
"[UserType(1), UserType(2), UserType(3), UserType(4)]"
assert (
str(m.return_vec_of_reference_wrapper(UserType(4)))
== "[UserType(1), UserType(2), UserType(3), UserType(4)]"
)
def test_stl_pass_by_pointer(msg):
"""Passing nullptr or None to an STL container pointer is not expected to work"""
with pytest.raises(TypeError) as excinfo:
m.stl_pass_by_pointer() # default value is `nullptr`
assert msg(excinfo.value) == """
assert (
msg(excinfo.value)
== """
stl_pass_by_pointer(): incompatible function arguments. The following argument types are supported:
1. (v: List[int] = None) -> List[int]
Invoked with:
""" # noqa: E501 line too long
)
with pytest.raises(TypeError) as excinfo:
m.stl_pass_by_pointer(None)
assert msg(excinfo.value) == """
assert (
msg(excinfo.value)
== """
stl_pass_by_pointer(): incompatible function arguments. The following argument types are supported:
1. (v: List[int] = None) -> List[int]
Invoked with: None
""" # noqa: E501 line too long
)
assert m.stl_pass_by_pointer([1, 2, 3]) == [1, 2, 3]
......@@ -209,10 +221,12 @@ def test_missing_header_message():
<pybind11/stl.h> should result in a helpful suggestion in the error message"""
import pybind11_cross_module_tests as cm
expected_message = ("Did you forget to `#include <pybind11/stl.h>`? Or <pybind11/complex.h>,\n"
"<pybind11/functional.h>, <pybind11/chrono.h>, etc. Some automatic\n"
"conversions are optional and require extra headers to be included\n"
"when compiling your pybind11 module.")
expected_message = (
"Did you forget to `#include <pybind11/stl.h>`? Or <pybind11/complex.h>,\n"
"<pybind11/functional.h>, <pybind11/chrono.h>, etc. Some automatic\n"
"conversions are optional and require extra headers to be included\n"
"when compiling your pybind11 module."
)
with pytest.raises(TypeError) as excinfo:
cm.missing_header_arg([1.0, 2.0, 3.0])
......@@ -226,9 +240,9 @@ def test_missing_header_message():
def test_function_with_string_and_vector_string_arg():
"""Check if a string is NOT implicitly converted to a list, which was the
behavior before fix of issue #1258"""
assert m.func_with_string_or_vector_string_arg_overload(('A', 'B', )) == 2
assert m.func_with_string_or_vector_string_arg_overload(['A', 'B']) == 2
assert m.func_with_string_or_vector_string_arg_overload('A') == 3
assert m.func_with_string_or_vector_string_arg_overload(("A", "B")) == 2
assert m.func_with_string_or_vector_string_arg_overload(["A", "B"]) == 2
assert m.func_with_string_or_vector_string_arg_overload("A") == 3
def test_stl_ownership():
......@@ -247,6 +261,6 @@ def test_array_cast_sequence():
def test_issue_1561():
""" check fix for issue #1561 """
bar = m.Issue1561Outer()
bar.list = [m.Issue1561Inner('bar')]
bar.list = [m.Issue1561Inner("bar")]
bar.list
assert bar.list[0].data == 'bar'
assert bar.list[0].data == "bar"
tests/test_stl_binders.py
......@@ -45,7 +45,7 @@ def test_vector_int():
# test error handling, and that the vector is unchanged
with pytest.raises(RuntimeError):
v_int2.extend([8, 'a'])
v_int2.extend([8, "a"])
assert v_int2 == m.VectorInt([0, 99, 2, 3, 4, 5, 6, 7])
......@@ -79,8 +79,8 @@ def test_vector_buffer():
assert mv[2] == 5
mv[2] = 6
else:
assert mv[2] == '\x05'
mv[2] = '\x06'
assert mv[2] == "\x05"
mv[2] = "\x06"
assert v[2] == 6
if not env.PY2:
......@@ -114,11 +114,17 @@ def test_vector_buffer_numpy():
v = m.get_vectorstruct()
assert v[0].x == 5
ma = np.asarray(v)
ma[1]['x'] = 99
ma[1]["x"] = 99
assert v[1].x == 99
v = m.VectorStruct(np.zeros(3, dtype=np.dtype([('w', 'bool'), ('x', 'I'),
('y', 'float64'), ('z', 'bool')], align=True)))
v = m.VectorStruct(
np.zeros(
3,
dtype=np.dtype(
[("w", "bool"), ("x", "I"), ("y", "float64"), ("z", "bool")], align=True
),
)
)
assert len(v) == 3
b = np.array([1, 2, 3, 4], dtype=np.uint8)
......@@ -151,31 +157,31 @@ def test_vector_custom():
def test_map_string_double():
mm = m.MapStringDouble()
mm['a'] = 1
mm['b'] = 2.5
mm["a"] = 1
mm["b"] = 2.5
assert list(mm) == ['a', 'b']
assert list(mm.items()) == [('a', 1), ('b', 2.5)]
assert list(mm) == ["a", "b"]
assert list(mm.items()) == [("a", 1), ("b", 2.5)]
assert str(mm) == "MapStringDouble{a: 1, b: 2.5}"
um = m.UnorderedMapStringDouble()
um['ua'] = 1.1
um['ub'] = 2.6
um["ua"] = 1.1
um["ub"] = 2.6
assert sorted(list(um)) == ['ua', 'ub']
assert sorted(list(um.items())) == [('ua', 1.1), ('ub', 2.6)]
assert sorted(list(um)) == ["ua", "ub"]
assert sorted(list(um.items())) == [("ua", 1.1), ("ub", 2.6)]
assert "UnorderedMapStringDouble" in str(um)
def test_map_string_double_const():
mc = m.MapStringDoubleConst()
mc['a'] = 10
mc['b'] = 20.5
mc["a"] = 10
mc["b"] = 20.5
assert str(mc) == "MapStringDoubleConst{a: 10, b: 20.5}"
umc = m.UnorderedMapStringDoubleConst()
umc['a'] = 11
umc['b'] = 21.5
umc["a"] = 11
umc["b"] = 21.5
str(umc)
......@@ -196,7 +202,7 @@ def test_noncopyable_containers():
i = 1
for j in dnc:
assert(j.value == i)
assert j.value == i
i += 1
# std::map
......@@ -265,21 +271,21 @@ def test_noncopyable_containers():
def test_map_delitem():
mm = m.MapStringDouble()
mm['a'] = 1
mm['b'] = 2.5
mm["a"] = 1
mm["b"] = 2.5
assert list(mm) == ['a', 'b']
assert list(mm.items()) == [('a', 1), ('b', 2.5)]
del mm['a']
assert list(mm) == ['b']
assert list(mm.items()) == [('b', 2.5)]
assert list(mm) == ["a", "b"]
assert list(mm.items()) == [("a", 1), ("b", 2.5)]
del mm["a"]
assert list(mm) == ["b"]
assert list(mm.items()) == [("b", 2.5)]
um = m.UnorderedMapStringDouble()
um['ua'] = 1.1
um['ub'] = 2.6
assert sorted(list(um)) == ['ua', 'ub']
assert sorted(list(um.items())) == [('ua', 1.1), ('ub', 2.6)]
del um['ua']
assert sorted(list(um)) == ['ub']
assert sorted(list(um.items())) == [('ub', 2.6)]
um["ua"] = 1.1
um["ub"] = 2.6
assert sorted(list(um)) == ["ua", "ub"]
assert sorted(list(um.items())) == [("ua", 1.1), ("ub", 2.6)]
del um["ua"]
assert sorted(list(um)) == ["ub"]
assert sorted(list(um.items())) == [("ub", 2.6)]
tests/test_tagbased_polymorphic.py
......@@ -5,16 +5,24 @@ from pybind11_tests import tagbased_polymorphic as m
def test_downcast():
zoo = m.create_zoo()
assert [type(animal) for animal in zoo] == [
m.Labrador, m.Dog, m.Chihuahua, m.Cat, m.Panther
m.Labrador,
m.Dog,
m.Chihuahua,
m.Cat,
m.Panther,
]
assert [animal.name for animal in zoo] == [
"Fido", "Ginger", "Hertzl", "Tiger", "Leo"
"Fido",
"Ginger",
"Hertzl",
"Tiger",
"Leo",
]
zoo[1].sound = "woooooo"
assert [dog.bark() for dog in zoo[:3]] == [
"Labrador Fido goes WOOF!",
"Dog Ginger goes woooooo",
"Chihuahua Hertzl goes iyiyiyiyiyi and runs in circles"
"Chihuahua Hertzl goes iyiyiyiyiyi and runs in circles",
]
assert [cat.purr() for cat in zoo[3:]] == ["mrowr", "mrrrRRRRRR"]
zoo[0].excitement -= 1000
......
tests/test_virtual_functions.py
......@@ -14,18 +14,18 @@ def test_override(capture, msg):
self.data = "Hello world"
def run(self, value):
print('ExtendedExampleVirt::run(%i), calling parent..' % value)
print("ExtendedExampleVirt::run(%i), calling parent.." % value)
return super(ExtendedExampleVirt, self).run(value + 1)
def run_bool(self):
print('ExtendedExampleVirt::run_bool()')
print("ExtendedExampleVirt::run_bool()")
return False
def get_string1(self):
return "override1"
def pure_virtual(self):
print('ExtendedExampleVirt::pure_virtual(): %s' % self.data)
print("ExtendedExampleVirt::pure_virtual(): %s" % self.data)
class ExtendedExampleVirt2(ExtendedExampleVirt):
def __init__(self, state):
......@@ -37,21 +37,30 @@ def test_override(capture, msg):
ex12 = m.ExampleVirt(10)
with capture:
assert m.runExampleVirt(ex12, 20) == 30
assert capture == """
assert (
capture
== """
Original implementation of ExampleVirt::run(state=10, value=20, str1=default1, str2=default2)
""" # noqa: E501 line too long
)
with pytest.raises(RuntimeError) as excinfo:
m.runExampleVirtVirtual(ex12)
assert msg(excinfo.value) == 'Tried to call pure virtual function "ExampleVirt::pure_virtual"'
assert (
msg(excinfo.value)
== 'Tried to call pure virtual function "ExampleVirt::pure_virtual"'
)
ex12p = ExtendedExampleVirt(10)
with capture:
assert m.runExampleVirt(ex12p, 20) == 32
assert capture == """
assert (
capture
== """
ExtendedExampleVirt::run(20), calling parent..
Original implementation of ExampleVirt::run(state=11, value=21, str1=override1, str2=default2)
""" # noqa: E501 line too long
)
with capture:
assert m.runExampleVirtBool(ex12p) is False
assert capture == "ExtendedExampleVirt::run_bool()"
......@@ -62,16 +71,19 @@ def test_override(capture, msg):
ex12p2 = ExtendedExampleVirt2(15)
with capture:
assert m.runExampleVirt(ex12p2, 50) == 68
assert capture == """
assert (
capture
== """
ExtendedExampleVirt::run(50), calling parent..
Original implementation of ExampleVirt::run(state=17, value=51, str1=override1, str2=override2)
""" # noqa: E501 line too long
)
cstats = ConstructorStats.get(m.ExampleVirt)
assert cstats.alive() == 3
del ex12, ex12p, ex12p2
assert cstats.alive() == 0
assert cstats.values() == ['10', '11', '17']
assert cstats.values() == ["10", "11", "17"]
assert cstats.copy_constructions == 0
assert cstats.move_constructions >= 0
......@@ -82,6 +94,7 @@ def test_alias_delay_initialization1(capture):
If we just create and use an A instance directly, the trampoline initialization is
bypassed and we only initialize an A() instead (for performance reasons).
"""
class B(m.A):
def __init__(self):
super(B, self).__init__()
......@@ -103,12 +116,15 @@ def test_alias_delay_initialization1(capture):
m.call_f(b)
del b
pytest.gc_collect()
assert capture == """
assert (
capture
== """
PyA.PyA()
PyA.f()
In python f()
PyA.~PyA()
"""
)
def test_alias_delay_initialization2(capture):
......@@ -118,6 +134,7 @@ def test_alias_delay_initialization2(capture):
performance penalty, it also allows us to do more things with the trampoline
class such as defining local variables and performing construction/destruction.
"""
class B2(m.A2):
def __init__(self):
super(B2, self).__init__()
......@@ -135,7 +152,9 @@ def test_alias_delay_initialization2(capture):
m.call_f(a3)
del a3
pytest.gc_collect()
assert capture == """
assert (
capture
== """
PyA2.PyA2()
PyA2.f()
A2.f()
......@@ -145,6 +164,7 @@ def test_alias_delay_initialization2(capture):
A2.f()
PyA2.~PyA2()
"""
)
# Python subclass version
with capture:
......@@ -152,20 +172,22 @@ def test_alias_delay_initialization2(capture):
m.call_f(b2)
del b2
pytest.gc_collect()
assert capture == """
assert (
capture
== """
PyA2.PyA2()
PyA2.f()
In python B2.f()
PyA2.~PyA2()
"""
)
# PyPy: Reference count > 1 causes call with noncopyable instance
# to fail in ncv1.print_nc()
@pytest.mark.xfail("env.PYPY")
@pytest.mark.skipif(
not hasattr(m, "NCVirt"),
reason="NCVirt does not work on Intel/PGI/NVCC compilers"
not hasattr(m, "NCVirt"), reason="NCVirt does not work on Intel/PGI/NVCC compilers"
)
def test_move_support():
class NCVirtExt(m.NCVirt):
......@@ -205,8 +227,8 @@ def test_move_support():
del ncv1, ncv2
assert nc_stats.alive() == 0
assert mv_stats.alive() == 0
assert nc_stats.values() == ['4', '9', '9', '9']
assert mv_stats.values() == ['4', '5', '7', '7']
assert nc_stats.values() == ["4", "9", "9", "9"]
assert mv_stats.values() == ["4", "5", "7", "7"]
assert nc_stats.copy_constructions == 0
assert mv_stats.copy_constructions == 1
assert nc_stats.move_constructions >= 0
......@@ -215,6 +237,7 @@ def test_move_support():
def test_dispatch_issue(msg):
"""#159: virtual function dispatch has problems with similar-named functions"""
class PyClass1(m.DispatchIssue):
def dispatch(self):
return "Yay.."
......@@ -223,7 +246,10 @@ def test_dispatch_issue(msg):
def dispatch(self):
with pytest.raises(RuntimeError) as excinfo:
super(PyClass2, self).dispatch()
assert msg(excinfo.value) == 'Tried to call pure virtual function "Base::dispatch"'
assert (
msg(excinfo.value)
== 'Tried to call pure virtual function "Base::dispatch"'
)
p = PyClass1()
return m.dispatch_issue_go(p)
......@@ -339,7 +365,7 @@ def test_inherited_virtuals():
class DT(m.D_Tpl):
def say_something(self, times):
return "DT says:" + (' quack' * times)
return "DT says:" + (" quack" * times)
def unlucky_number(self):
return 1234
......@@ -355,7 +381,7 @@ def test_inherited_virtuals():
class DT2(DT):
def say_something(self, times):
return "DT2: " + ('QUACK' * times)
return "DT2: " + ("QUACK" * times)
def unlucky_number(self):
return -3
......
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