92 lines
3.1 KiB
Rust
92 lines
3.1 KiB
Rust
#[macro_use] extern crate cpython;
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use cpython::{PyResult, Python, NoArgs, ObjectProtocol, PyDict};
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use std::sync::atomic;
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use std::sync::atomic::Ordering::Relaxed;
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#[test]
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fn no_args() {
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static CALL_COUNT: atomic::AtomicUsize = atomic::ATOMIC_USIZE_INIT;
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fn f(_py: Python) -> PyResult<usize> {
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Ok(CALL_COUNT.fetch_add(1, Relaxed))
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}
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let gil = Python::acquire_gil();
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let py = gil.python();
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let obj = py_fn!(py, f());
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assert_eq!(CALL_COUNT.load(Relaxed), 0);
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assert_eq!(obj.call(py, NoArgs, None).unwrap().extract::<i32>(py).unwrap(), 0);
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assert_eq!(obj.call(py, NoArgs, None).unwrap().extract::<i32>(py).unwrap(), 1);
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assert_eq!(CALL_COUNT.load(Relaxed), 2);
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assert!(obj.call(py, (1,), None).is_err());
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assert_eq!(CALL_COUNT.load(Relaxed), 2);
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assert_eq!(obj.call(py, NoArgs, Some(&PyDict::new(py))).unwrap().extract::<i32>(py).unwrap(), 2);
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assert_eq!(CALL_COUNT.load(Relaxed), 3);
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let dict = PyDict::new(py);
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dict.set_item(py, "param", 42).unwrap();
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assert!(obj.call(py, NoArgs, Some(&dict)).is_err());
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assert_eq!(CALL_COUNT.load(Relaxed), 3);
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}
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#[test]
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fn one_arg() {
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fn f(_py: Python, i: usize) -> PyResult<usize> {
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Ok(i * 2)
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}
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let gil = Python::acquire_gil();
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let py = gil.python();
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let obj = py_fn!(py, f(i: usize));
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assert!(obj.call(py, NoArgs, None).is_err());
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assert_eq!(obj.call(py, (1,), None).unwrap().extract::<i32>(py).unwrap(), 2);
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assert!(obj.call(py, (1, 2), None).is_err());
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let dict = PyDict::new(py);
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dict.set_item(py, "i", 42).unwrap();
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assert_eq!(obj.call(py, NoArgs, Some(&dict)).unwrap().extract::<i32>(py).unwrap(), 84);
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assert!(obj.call(py, (1,), Some(&dict)).is_err());
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dict.set_item(py, "j", 10).unwrap();
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assert!(obj.call(py, NoArgs, Some(&dict)).is_err());
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}
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#[test]
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fn inline_two_args() {
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let gil = Python::acquire_gil();
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let py = gil.python();
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let obj = py_fn!(py, f(a: i32, b: i32) -> PyResult<i32> {
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drop(py); // avoid unused variable warning
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Ok(a * b)
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});
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assert!(obj.call(py, NoArgs, None).is_err());
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assert_eq!(obj.call(py, (6, 7), None).unwrap().extract::<i32>(py).unwrap(), 42);
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}
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/* TODO: reimplement flexible sig support
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#[test]
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fn flexible_sig() {
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fn f(py: Python, args: &PyTuple, kwargs: &PyDict) -> PyResult<usize> {
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Ok(args.len(py) + 100 * kwargs.map_or(0, |kwargs| kwargs.len(py)))
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}
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let gil = Python::acquire_gil();
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let py = gil.python();
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let obj = py_fn!(f(*args, **kwargs)).to_py_object(py);
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assert_eq!(obj.call(py, NoArgs, None).unwrap().extract::<i32>(py).unwrap(), 0);
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assert_eq!(obj.call(py, (1,), None).unwrap().extract::<i32>(py).unwrap(), 1);
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assert_eq!(obj.call(py, (1,2), None).unwrap().extract::<i32>(py).unwrap(), 2);
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let dict = PyDict::new(py);
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dict.set_item(py, "i", 42).unwrap();
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assert_eq!(obj.call(py, NoArgs, Some(&dict)).unwrap().extract::<i32>(py).unwrap(), 100);
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assert_eq!(obj.call(py, (1,2), Some(&dict)).unwrap().extract::<i32>(py).unwrap(), 102);
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dict.set_item(py, "j", 10).unwrap();
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assert_eq!(obj.call(py, (1,2,3), Some(&dict)).unwrap().extract::<i32>(py).unwrap(), 203);
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}
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*/
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