146 lines
3.6 KiB
Rust
146 lines
3.6 KiB
Rust
#![cfg(feature = "macros")]
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use pyo3::prelude::*;
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use pyo3::{exceptions, py_run, PyErr, PyResult};
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use std::error::Error;
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use std::fmt;
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#[cfg(not(target_os = "windows"))]
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use std::fs::File;
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mod common;
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#[pyfunction]
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#[cfg(not(target_os = "windows"))]
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fn fail_to_open_file() -> PyResult<()> {
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File::open("not_there.txt")?;
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Ok(())
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}
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#[test]
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#[cfg_attr(target_arch = "wasm32", ignore)] // Not sure why this fails.
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#[cfg(not(target_os = "windows"))]
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fn test_filenotfounderror() {
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Python::with_gil(|py| {
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let fail_to_open_file = wrap_pyfunction!(fail_to_open_file)(py).unwrap();
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py_run!(
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py,
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fail_to_open_file,
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r#"
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try:
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fail_to_open_file()
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except FileNotFoundError as e:
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assert str(e) == "No such file or directory (os error 2)"
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"#
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);
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});
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}
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#[derive(Debug)]
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struct CustomError;
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impl Error for CustomError {}
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impl fmt::Display for CustomError {
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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write!(f, "Oh no!")
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}
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}
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impl std::convert::From<CustomError> for PyErr {
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fn from(err: CustomError) -> PyErr {
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exceptions::PyOSError::new_err(err.to_string())
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}
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}
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fn fail_with_custom_error() -> Result<(), CustomError> {
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Err(CustomError)
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}
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#[pyfunction]
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fn call_fail_with_custom_error() -> PyResult<()> {
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fail_with_custom_error()?;
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Ok(())
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}
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#[test]
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fn test_custom_error() {
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Python::with_gil(|py| {
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let call_fail_with_custom_error =
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wrap_pyfunction!(call_fail_with_custom_error)(py).unwrap();
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py_run!(
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py,
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call_fail_with_custom_error,
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r#"
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try:
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call_fail_with_custom_error()
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except OSError as e:
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assert str(e) == "Oh no!"
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"#
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);
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});
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}
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#[test]
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fn test_exception_nosegfault() {
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use std::net::TcpListener;
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fn io_err() -> PyResult<()> {
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TcpListener::bind("no:address")?;
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Ok(())
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}
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fn parse_int() -> PyResult<()> {
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"@_@".parse::<i64>()?;
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Ok(())
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}
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assert!(io_err().is_err());
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assert!(parse_int().is_err());
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}
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#[test]
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#[cfg(Py_3_8)]
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fn test_write_unraisable() {
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use pyo3::{exceptions::PyRuntimeError, ffi, AsPyPointer};
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#[pyclass]
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struct UnraisableCapture {
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capture: Option<(PyErr, PyObject)>,
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}
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#[pymethods]
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impl UnraisableCapture {
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fn hook(&mut self, unraisable: &PyAny) {
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let err = PyErr::from_value(unraisable.getattr("exc_value").unwrap());
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let instance = unraisable.getattr("object").unwrap();
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self.capture = Some((err, instance.into()));
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}
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}
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Python::with_gil(|py| {
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let sys = py.import("sys").unwrap();
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let old_hook = sys.getattr("unraisablehook").unwrap();
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let capture = Py::new(py, UnraisableCapture { capture: None }).unwrap();
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sys.setattr("unraisablehook", capture.getattr(py, "hook").unwrap())
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.unwrap();
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assert!(capture.borrow(py).capture.is_none());
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let err = PyRuntimeError::new_err("foo");
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err.write_unraisable(py, None);
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let (err, object) = capture.borrow_mut(py).capture.take().unwrap();
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assert_eq!(err.to_string(), "RuntimeError: foo");
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assert!(object.is_none(py));
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let err = PyRuntimeError::new_err("bar");
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err.write_unraisable(py, Some(py.NotImplemented().as_ref(py)));
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let (err, object) = capture.borrow_mut(py).capture.take().unwrap();
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assert_eq!(err.to_string(), "RuntimeError: bar");
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assert!(object.as_ptr() == unsafe { ffi::Py_NotImplemented() });
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sys.setattr("unraisablehook", old_hook).unwrap();
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});
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}
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