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#![cfg(feature = "macros")]
use pyo3::prelude::*;
#[macro_use]
mod test_utils;
#[pyclass(from_py_object)]
#[derive(Clone, Debug, PartialEq)]
struct Cloneable {
x: i32,
}
#[test]
fn test_cloneable_pyclass() {
let c = Cloneable { x: 10 };
Python::attach(|py| {
let py_c = Py::new(py, c.clone()).unwrap();
let c2: Cloneable = py_c.extract(py).unwrap();
assert_eq!(c, c2);
{
let rc: PyRef<'_, Cloneable> = py_c.extract(py).unwrap();
assert_eq!(&c, &*rc);
// Drops PyRef before taking PyRefMut
}
let mrc: PyRefMut<'_, Cloneable> = py_c.extract(py).unwrap();
assert_eq!(&c, &*mrc);
});
}
#[pyclass(subclass)]
#[derive(Default)]
struct BaseClass {
value: i32,
}
#[pymethods]
impl BaseClass {
fn foo(&self) -> &'static str {
"BaseClass"
}
}
#[pyclass(extends=BaseClass)]
struct SubClass {}
#[pymethods]
impl SubClass {
fn foo(&self) -> &'static str {
"SubClass"
}
}
#[pyclass]
struct PolymorphicContainer {
#[pyo3(get, set)]
inner: Py<BaseClass>,
}
#[test]
fn test_polymorphic_container_stores_base_class() {
Python::attach(|py| {
let p = Py::new(
py,
PolymorphicContainer {
inner: Py::new(py, BaseClass::default()).unwrap(),
},
)
.unwrap();
py_assert!(py, p, "p.inner.foo() == 'BaseClass'");
});
}
#[test]
fn test_polymorphic_container_stores_sub_class() {
Python::attach(|py| {
let p = Py::new(
py,
PolymorphicContainer {
inner: Py::new(py, BaseClass::default()).unwrap(),
},
)
.unwrap();
p.bind(py)
.setattr(
"inner",
Py::new(
py,
PyClassInitializer::from(BaseClass::default()).add_subclass(SubClass {}),
)
.unwrap(),
)
.unwrap();
py_assert!(py, p, "p.inner.foo() == 'SubClass'");
});
}
#[test]
fn test_polymorphic_container_does_not_accept_other_types() {
Python::attach(|py| {
let p = Py::new(
py,
PolymorphicContainer {
inner: Py::new(py, BaseClass::default()).unwrap(),
},
)
.unwrap();
let setattr = |value: Bound<'_, PyAny>| p.bind(py).setattr("inner", value);
assert!(setattr(1i32.into_pyobject(py).unwrap().into_any()).is_err());
assert!(setattr(py.None().into_bound(py)).is_err());
assert!(setattr((1i32, 2i32).into_pyobject(py).unwrap().into_any()).is_err());
});
}
#[test]
fn test_pyref_as_base() {
Python::attach(|py| {
let cell = Bound::new(py, (SubClass {}, BaseClass { value: 120 })).unwrap();
// First try PyRefMut
let sub: PyRefMut<'_, SubClass> = cell.borrow_mut();
let mut base: PyRefMut<'_, BaseClass> = sub.into_super();
assert_eq!(120, base.value);
base.value = 999;
assert_eq!(999, base.value);
drop(base);
// Repeat for PyRef
let sub: PyRef<'_, SubClass> = cell.borrow();
let base: PyRef<'_, BaseClass> = sub.into_super();
assert_eq!(999, base.value);
});
}
#[test]
fn test_pycell_deref() {
Python::attach(|py| {
let obj = Bound::new(py, (SubClass {}, BaseClass { value: 120 })).unwrap();
// Should be able to deref as PyAny
assert_eq!(
obj.call_method0("foo")
.and_then(|e| e.extract::<String>())
.unwrap(),
"SubClass"
);
});
}
|
