mirror of https://github.com/pybind/pybind11
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
383 lines
12 KiB
383 lines
12 KiB
from __future__ import annotations |
|
|
|
import pytest |
|
|
|
from pybind11_tests import ConstructorStats, UserType |
|
from pybind11_tests import stl as m |
|
|
|
|
|
def test_vector(doc): |
|
"""std::vector <-> list""" |
|
lst = m.cast_vector() |
|
assert lst == [1] |
|
lst.append(2) |
|
assert m.load_vector(lst) |
|
assert m.load_vector(tuple(lst)) |
|
|
|
assert m.cast_bool_vector() == [True, False] |
|
assert m.load_bool_vector([True, False]) |
|
assert m.load_bool_vector((True, False)) |
|
|
|
assert doc(m.cast_vector) == "cast_vector() -> list[int]" |
|
assert doc(m.load_vector) == "load_vector(arg0: list[int]) -> bool" |
|
|
|
# Test regression caused by 936: pointers to stl containers weren't castable |
|
assert m.cast_ptr_vector() == ["lvalue", "lvalue"] |
|
|
|
|
|
def test_deque(): |
|
"""std::deque <-> list""" |
|
lst = m.cast_deque() |
|
assert lst == [1] |
|
lst.append(2) |
|
assert m.load_deque(lst) |
|
assert m.load_deque(tuple(lst)) |
|
|
|
|
|
def test_array(doc): |
|
"""std::array <-> list""" |
|
lst = m.cast_array() |
|
assert lst == [1, 2] |
|
assert m.load_array(lst) |
|
assert m.load_array(tuple(lst)) |
|
|
|
assert doc(m.cast_array) == "cast_array() -> Annotated[list[int], FixedSize(2)]" |
|
assert ( |
|
doc(m.load_array) |
|
== "load_array(arg0: Annotated[list[int], FixedSize(2)]) -> bool" |
|
) |
|
|
|
|
|
def test_valarray(doc): |
|
"""std::valarray <-> list""" |
|
lst = m.cast_valarray() |
|
assert lst == [1, 4, 9] |
|
assert m.load_valarray(lst) |
|
assert m.load_valarray(tuple(lst)) |
|
|
|
assert doc(m.cast_valarray) == "cast_valarray() -> list[int]" |
|
assert doc(m.load_valarray) == "load_valarray(arg0: list[int]) -> bool" |
|
|
|
|
|
def test_map(doc): |
|
"""std::map <-> dict""" |
|
d = m.cast_map() |
|
assert d == {"key": "value"} |
|
assert "key" in d |
|
d["key2"] = "value2" |
|
assert "key2" in d |
|
assert m.load_map(d) |
|
|
|
assert doc(m.cast_map) == "cast_map() -> dict[str, str]" |
|
assert doc(m.load_map) == "load_map(arg0: dict[str, str]) -> bool" |
|
|
|
|
|
def test_set(doc): |
|
"""std::set <-> set""" |
|
s = m.cast_set() |
|
assert s == {"key1", "key2"} |
|
s.add("key3") |
|
assert m.load_set(s) |
|
assert m.load_set(frozenset(s)) |
|
|
|
assert doc(m.cast_set) == "cast_set() -> set[str]" |
|
assert doc(m.load_set) == "load_set(arg0: set[str]) -> bool" |
|
|
|
|
|
def test_recursive_casting(): |
|
"""Tests that stl casters preserve lvalue/rvalue context for container values""" |
|
assert m.cast_rv_vector() == ["rvalue", "rvalue"] |
|
assert m.cast_lv_vector() == ["lvalue", "lvalue"] |
|
assert m.cast_rv_array() == ["rvalue", "rvalue", "rvalue"] |
|
assert m.cast_lv_array() == ["lvalue", "lvalue"] |
|
assert m.cast_rv_map() == {"a": "rvalue"} |
|
assert m.cast_lv_map() == {"a": "lvalue", "b": "lvalue"} |
|
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"]]], |
|
} |
|
|
|
# Issue #853 test case: |
|
z = m.cast_unique_ptr_vector() |
|
assert z[0].value == 7 |
|
assert z[1].value == 42 |
|
|
|
|
|
def test_move_out_container(): |
|
"""Properties use the `reference_internal` policy by default. If the underlying function |
|
returns an rvalue, the policy is automatically changed to `move` to avoid referencing |
|
a temporary. In case the return value is a container of user-defined types, the policy |
|
also needs to be applied to the elements, not just the container.""" |
|
c = m.MoveOutContainer() |
|
moved_out_list = c.move_list |
|
assert [x.value for x in moved_out_list] == [0, 1, 2] |
|
|
|
|
|
@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") |
|
|
|
assert m.half_or_none(0) is None |
|
assert m.half_or_none(42) == 21 |
|
pytest.raises(TypeError, m.half_or_none, "foo") |
|
|
|
assert m.test_nullopt() == 42 |
|
assert m.test_nullopt(None) == 42 |
|
assert m.test_nullopt(42) == 42 |
|
assert m.test_nullopt(43) == 43 |
|
|
|
assert m.test_no_assign() == 42 |
|
assert m.test_no_assign(None) == 42 |
|
assert m.test_no_assign(m.NoAssign(43)) == 43 |
|
pytest.raises(TypeError, m.test_no_assign, 43) |
|
|
|
assert m.nodefer_none_optional(None) |
|
|
|
holder = m.OptionalHolder() |
|
mvalue = holder.member |
|
assert mvalue.initialized |
|
assert holder.member_initialized() |
|
|
|
props = m.OptionalProperties() |
|
assert int(props.access_by_ref) == 42 |
|
assert int(props.access_by_copy) == 42 |
|
|
|
|
|
@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") |
|
|
|
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") |
|
|
|
assert m.test_nullopt_exp() == 42 |
|
assert m.test_nullopt_exp(None) == 42 |
|
assert m.test_nullopt_exp(42) == 42 |
|
assert m.test_nullopt_exp(43) == 43 |
|
|
|
assert m.test_no_assign_exp() == 42 |
|
assert m.test_no_assign_exp(None) == 42 |
|
assert m.test_no_assign_exp(m.NoAssign(43)) == 43 |
|
pytest.raises(TypeError, m.test_no_assign_exp, 43) |
|
|
|
holder = m.OptionalExpHolder() |
|
mvalue = holder.member |
|
assert mvalue.initialized |
|
assert holder.member_initialized() |
|
|
|
props = m.OptionalExpProperties() |
|
assert int(props.access_by_ref) == 42 |
|
assert int(props.access_by_copy) == 42 |
|
|
|
|
|
@pytest.mark.skipif(not hasattr(m, "has_boost_optional"), reason="no <boost/optional>") |
|
def test_boost_optional(): |
|
assert m.double_or_zero_boost(None) == 0 |
|
assert m.double_or_zero_boost(42) == 84 |
|
pytest.raises(TypeError, m.double_or_zero_boost, "foo") |
|
|
|
assert m.half_or_none_boost(0) is None |
|
assert m.half_or_none_boost(42) == 21 |
|
pytest.raises(TypeError, m.half_or_none_boost, "foo") |
|
|
|
assert m.test_nullopt_boost() == 42 |
|
assert m.test_nullopt_boost(None) == 42 |
|
assert m.test_nullopt_boost(42) == 42 |
|
assert m.test_nullopt_boost(43) == 43 |
|
|
|
assert m.test_no_assign_boost() == 42 |
|
assert m.test_no_assign_boost(None) == 42 |
|
assert m.test_no_assign_boost(m.NoAssign(43)) == 43 |
|
pytest.raises(TypeError, m.test_no_assign_boost, 43) |
|
|
|
holder = m.OptionalBoostHolder() |
|
mvalue = holder.member |
|
assert mvalue.initialized |
|
assert holder.member_initialized() |
|
|
|
props = m.OptionalBoostProperties() |
|
assert int(props.access_by_ref) == 42 |
|
assert int(props.access_by_copy) == 42 |
|
|
|
|
|
def test_reference_sensitive_optional(): |
|
assert m.double_or_zero_refsensitive(None) == 0 |
|
assert m.double_or_zero_refsensitive(42) == 84 |
|
pytest.raises(TypeError, m.double_or_zero_refsensitive, "foo") |
|
|
|
assert m.half_or_none_refsensitive(0) is None |
|
assert m.half_or_none_refsensitive(42) == 21 |
|
pytest.raises(TypeError, m.half_or_none_refsensitive, "foo") |
|
|
|
assert m.test_nullopt_refsensitive() == 42 |
|
assert m.test_nullopt_refsensitive(None) == 42 |
|
assert m.test_nullopt_refsensitive(42) == 42 |
|
assert m.test_nullopt_refsensitive(43) == 43 |
|
|
|
assert m.test_no_assign_refsensitive() == 42 |
|
assert m.test_no_assign_refsensitive(None) == 42 |
|
assert m.test_no_assign_refsensitive(m.NoAssign(43)) == 43 |
|
pytest.raises(TypeError, m.test_no_assign_refsensitive, 43) |
|
|
|
holder = m.OptionalRefSensitiveHolder() |
|
mvalue = holder.member |
|
assert mvalue.initialized |
|
assert holder.member_initialized() |
|
|
|
props = m.OptionalRefSensitiveProperties() |
|
assert int(props.access_by_ref) == 42 |
|
assert int(props.access_by_copy) == 42 |
|
|
|
|
|
@pytest.mark.skipif(not hasattr(m, "has_filesystem"), reason="no <filesystem>") |
|
def test_fs_path(): |
|
from pathlib import Path |
|
|
|
class PseudoStrPath: |
|
def __fspath__(self): |
|
return "foo/bar" |
|
|
|
class PseudoBytesPath: |
|
def __fspath__(self): |
|
return b"foo/bar" |
|
|
|
assert m.parent_path(Path("foo/bar")) == Path("foo") |
|
assert m.parent_path("foo/bar") == Path("foo") |
|
assert m.parent_path(b"foo/bar") == Path("foo") |
|
assert m.parent_path(PseudoStrPath()) == Path("foo") |
|
assert m.parent_path(PseudoBytesPath()) == Path("foo") |
|
|
|
|
|
@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" |
|
assert m.load_variant(1.0) == "double" |
|
assert m.load_variant(None) == "std::nullptr_t" |
|
|
|
assert m.load_variant_2pass(1) == "int" |
|
assert m.load_variant_2pass(1.0) == "double" |
|
|
|
assert m.cast_variant() == (5, "Hello") |
|
|
|
assert ( |
|
doc(m.load_variant) == "load_variant(arg0: Union[int, str, float, None]) -> str" |
|
) |
|
|
|
|
|
@pytest.mark.skipif( |
|
not hasattr(m, "load_monostate_variant"), reason="no std::monostate" |
|
) |
|
def test_variant_monostate(doc): |
|
assert m.load_monostate_variant(None) == "std::monostate" |
|
assert m.load_monostate_variant(1) == "int" |
|
assert m.load_monostate_variant("1") == "std::string" |
|
|
|
assert m.cast_monostate_variant() == (None, 5, "Hello") |
|
|
|
assert ( |
|
doc(m.load_monostate_variant) |
|
== "load_monostate_variant(arg0: Union[None, int, str]) -> 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)]" |
|
) |
|
|
|
|
|
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) |
|
== """ |
|
stl_pass_by_pointer(): incompatible function arguments. The following argument types are supported: |
|
1. (v: list[int] = None) -> list[int] |
|
|
|
Invoked with: |
|
""" |
|
) |
|
|
|
with pytest.raises(TypeError) as excinfo: |
|
m.stl_pass_by_pointer(None) |
|
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 |
|
""" |
|
) |
|
|
|
assert m.stl_pass_by_pointer([1, 2, 3]) == [1, 2, 3] |
|
|
|
|
|
def test_missing_header_message(): |
|
"""Trying convert `list` to a `std::vector`, or vice versa, without including |
|
<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." |
|
) |
|
|
|
with pytest.raises(TypeError) as excinfo: |
|
cm.missing_header_arg([1.0, 2.0, 3.0]) |
|
assert expected_message in str(excinfo.value) |
|
|
|
with pytest.raises(TypeError) as excinfo: |
|
cm.missing_header_return() |
|
assert expected_message in str(excinfo.value) |
|
|
|
|
|
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 |
|
|
|
|
|
def test_stl_ownership(): |
|
cstats = ConstructorStats.get(m.Placeholder) |
|
assert cstats.alive() == 0 |
|
r = m.test_stl_ownership() |
|
assert len(r) == 1 |
|
del r |
|
assert cstats.alive() == 0 |
|
|
|
|
|
def test_array_cast_sequence(): |
|
assert m.array_cast_sequence((1, 2, 3)) == [1, 2, 3] |
|
|
|
|
|
def test_issue_1561(): |
|
"""check fix for issue #1561""" |
|
bar = m.Issue1561Outer() |
|
bar.list = [m.Issue1561Inner("bar")] |
|
assert bar.list |
|
assert bar.list[0].data == "bar" |
|
|
|
|
|
def test_return_vector_bool_raw_ptr(): |
|
# Add `while True:` for manual leak checking. |
|
v = m.return_vector_bool_raw_ptr() |
|
assert isinstance(v, list) |
|
assert len(v) == 4513
|
|
|