pyo3/tests/test_slice.rs

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2017-04-28 02:38:02 +00:00
#![allow(dead_code, unused_variables)]
#[macro_use] extern crate cpython;
use cpython::*;
#[test]
fn test_basics() {
let gil = Python::acquire_gil();
let py = gil.python();
let v = PySlice::new(py, 1, 10, 2);
let indices = v.indices(py, 100).unwrap();
assert_eq!(1, indices.start);
assert_eq!(10, indices.stop);
assert_eq!(2, indices.step);
assert_eq!(5, indices.slicelength);
}
py_class!(pub class Test |py| {
def __getitem__(&self, idx: PyObject) -> PyResult<PyObject> {
if let Ok(slice) = PySlice::downcast_from(py, idx.clone_ref(py)) {
let indices = slice.indices(py, 1000)?;
if indices.start == 100 && indices.stop == 200 && indices.step == 1 {
return Ok("slice".to_py_object(py).into_object())
}
}
else if let Ok(idx) = idx.extract::<isize>(py) {
if idx == 1 {
return Ok("int".to_py_object(py).into_object())
}
}
Err(PyErr::new::<exc::ValueError, _>(py, "error"))
}
});
#[test]
fn test_cls_impl() {
let gil = Python::acquire_gil();
let py = gil.python();
let ob = Test::create_instance(py).unwrap();
let d = PyDict::new(py);
d.set_item(py, "ob", ob).unwrap();
py.run("assert ob[1] == 'int'", None, Some(&d)).unwrap();
py.run("assert ob[100:200:1] == 'slice'", None, Some(&d)).unwrap();
}