The source code and dockerfile for the GSW2024 AI Lab.
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import pytest
from pybind11_tests import stl as m
from pybind11_tests import UserType
def test_vector(doc):
"""std::vector <-> list"""
l = m.cast_vector()
assert l == [1]
l.append(2)
assert m.load_vector(l)
assert m.load_vector(tuple(l))
assert doc(m.cast_vector) == "cast_vector() -> List[int]"
assert doc(m.load_vector) == "load_vector(arg0: List[int]) -> bool"
def test_array(doc):
"""std::array <-> list"""
l = m.cast_array()
assert l == [1, 2]
assert m.load_array(l)
assert doc(m.cast_array) == "cast_array() -> List[int[2]]"
assert doc(m.load_array) == "load_array(arg0: List[int[2]]) -> bool"
def test_valarray(doc):
"""std::valarray <-> list"""
l = m.cast_valarray()
assert l == [1, 4, 9]
assert m.load_valarray(l)
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"}
d["key2"] = "value2"
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 doc(m.cast_set) == "cast_set() -> Set[str]"
assert doc(m.load_set) == "load_set(arg0: Set[str]) -> bool"
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)
@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)
@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"
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:
""" # noqa: E501 line too long
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
""" # noqa: E501 line too long
assert m.stl_pass_by_pointer([1, 2, 3]) == [1, 2, 3]