pyo3/tests/test_class_new.rs

84 lines
1.7 KiB
Rust

#![feature(specialization)]
extern crate pyo3;
use pyo3::prelude::*;
use pyo3::PyRawObject;
#[pyclass]
struct EmptyClassWithNew {}
#[pymethods]
impl EmptyClassWithNew {
#[__new__]
fn __new__(obj: &PyRawObject) -> PyResult<()> {
obj.init(|| EmptyClassWithNew {})
}
}
#[test]
fn empty_class_with_new() {
let gil = Python::acquire_gil();
let py = gil.python();
let typeobj = py.get_type::<EmptyClassWithNew>();
assert!(typeobj
.call(NoArgs, None)
.unwrap()
.cast_as::<EmptyClassWithNew>()
.is_ok());
}
#[pyclass]
struct NewWithOneArg {
_data: i32,
}
#[pymethods]
impl NewWithOneArg {
#[new]
fn __new__(obj: &PyRawObject, arg: i32) -> PyResult<()> {
obj.init(|| NewWithOneArg { _data: arg })
}
}
#[test]
fn new_with_one_arg() {
let gil = Python::acquire_gil();
let py = gil.python();
let typeobj = py.get_type::<NewWithOneArg>();
let wrp = typeobj.call((42,), None).unwrap();
let obj = wrp.cast_as::<NewWithOneArg>().unwrap();
assert_eq!(obj._data, 42);
}
#[pyclass]
struct NewWithTwoArgs {
_data1: i32,
_data2: i32,
}
#[pymethods]
impl NewWithTwoArgs {
#[new]
fn __new__(obj: &PyRawObject, arg1: i32, arg2: i32) -> PyResult<()> {
obj.init(|| NewWithTwoArgs {
_data1: arg1,
_data2: arg2,
})
}
}
#[test]
fn new_with_two_args() {
let gil = Python::acquire_gil();
let py = gil.python();
let typeobj = py.get_type::<NewWithTwoArgs>();
let wrp = typeobj
.call((10, 20), None)
.map_err(|e| e.print(py))
.unwrap();
let obj = wrp.cast_as::<NewWithTwoArgs>().unwrap();
assert_eq!(obj._data1, 10);
assert_eq!(obj._data2, 20);
}