pyo3/tests/test_class.rs
2017-05-25 08:06:10 -07:00

1006 lines
26 KiB
Rust

#![feature(proc_macro, specialization)]
#![allow(dead_code, unused_variables)]
extern crate pyo3;
use pyo3::*;
use std::{mem, isize, iter};
use std::cell::RefCell;
use std::sync::Arc;
use std::sync::atomic::{AtomicBool, Ordering};
use pyo3::ffi;
macro_rules! py_run {
($py:expr, $val:ident, $code:expr) => {{
let d = PyDict::new($py);
d.set_item(stringify!($val), &$val).unwrap();
//$py.run($code, None, Some(&d)).map_err(|e| e.print($py)).expect($code);
$py.run($code, None, Some(&d)).expect($code);
}}
}
macro_rules! py_assert {
($py:expr, $val:ident, $assertion:expr) => { py_run!($py, $val, concat!("assert ", $assertion)) };
}
macro_rules! py_expect_exception {
($py:expr, $val:ident, $code:expr, $err:ident) => {{
let d = PyDict::new($py);
d.set_item($py, stringify!($val), &$val).unwrap();
let res = $py.run($code, None, Some(&d));
let err = res.unwrap_err();
if !err.matches($py, $py.get_type::<exc::$err>()) {
panic!(format!("Expected {} but got {:?}", stringify!($err), err))
}
}}
}
#[py::class]
struct EmptyClass { }
#[test]
fn empty_class() {
let gil = Python::acquire_gil();
let py = gil.python();
let typeobj = py.get_type::<EmptyClass>();
// By default, don't allow creating instances from python.
assert!(typeobj.call(NoArgs, None).is_err());
py_assert!(py, typeobj, "typeobj.__name__ == 'EmptyClass'");
}
#[py::class]
struct EmptyClassInModule { }
#[test]
fn empty_class_in_module() {
let gil = Python::acquire_gil();
let py = gil.python();
let module = PyModule::new(py, "test_module.nested").unwrap();
module.add_class::<EmptyClassInModule>().unwrap();
let ty = module.getattr("EmptyClassInModule").unwrap();
assert_eq!(ty.getattr("__name__").unwrap().extract::<String>().unwrap(), "EmptyClassInModule");
assert_eq!(ty.getattr("__module__").unwrap().extract::<String>().unwrap(), "test_module.nested");
}
#[py::class]
struct EmptyClassWithNew { }
#[py::methods]
impl EmptyClassWithNew {
#[__new__]
fn __new__(cls: &PyType) -> PyResult<EmptyClassWithNew> {
Ok(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_into::<EmptyClassWithNew>().is_ok());
}
#[py::class]
struct NewWithOneArg {
_data: i32,
}
#[py::methods]
impl NewWithOneArg {
#[new]
fn __new__(_cls: &PyType, arg: i32) -> PyResult<NewWithOneArg> {
Ok(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 obj = typeobj.call((42,), None).unwrap().cast_into::<NewWithOneArg>().unwrap();
assert_eq!(obj._data, 42);
}
#[py::class]
struct NewWithTwoArgs {
_data1: i32,
_data2: i32,
}
#[py::methods]
impl NewWithTwoArgs {
#[new]
fn __new__(_cls: &PyType, arg1: i32, arg2: i32) -> PyResult<NewWithTwoArgs> {
Ok(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 obj = typeobj.call((10, 20), None).unwrap().cast_into::<NewWithTwoArgs>().unwrap();
assert_eq!(obj._data1, 10);
assert_eq!(obj._data2, 20);
}
struct TestDropCall {
drop_called: Arc<AtomicBool>
}
impl Drop for TestDropCall {
fn drop(&mut self) {
self.drop_called.store(true, Ordering::Relaxed);
}
}
#[py::class]
struct DataIsDropped {
member1: TestDropCall,
member2: TestDropCall,
}
//#[test]
fn data_is_dropped() {
let gil = Python::acquire_gil();
let py = gil.python();
let drop_called1 = Arc::new(AtomicBool::new(false));
let drop_called2 = Arc::new(AtomicBool::new(false));
let inst = DataIsDropped{
member1: TestDropCall { drop_called: drop_called1.clone() },
member2: TestDropCall { drop_called: drop_called2.clone() }}.into_object(py);
assert!(drop_called1.load(Ordering::Relaxed) == false);
assert!(drop_called2.load(Ordering::Relaxed) == false);
drop(inst);
assert!(drop_called1.load(Ordering::Relaxed) == true);
assert!(drop_called2.load(Ordering::Relaxed) == true);
}
#[py::class]
struct InstanceMethod {
member: i32,
}
#[py::methods]
impl InstanceMethod {
fn method(&self) -> PyResult<i32> {
Ok(self.member)
}
}
#[test]
fn instance_method() {
let gil = Python::acquire_gil();
let py = gil.python();
let obj = py.init(InstanceMethod{member: 42});
assert!(obj.method().unwrap() == 42);
let d = PyDict::new(py);
d.set_item("obj", obj).unwrap();
py.run("assert obj.method() == 42", None, Some(&d)).unwrap();
}
#[py::class]
struct InstanceMethodWithArgs {
member: i32
}
#[py::methods]
impl InstanceMethodWithArgs {
fn method(&self, multiplier: i32) -> PyResult<i32> {
Ok(self.member * multiplier)
}
}
#[test]
fn instance_method_with_args() {
let gil = Python::acquire_gil();
let py = gil.python();
let obj = py.init(InstanceMethodWithArgs{member: 7});
assert!(obj.method(6).unwrap() == 42);
let d = PyDict::new(py);
d.set_item("obj", obj).unwrap();
py.run("assert obj.method(3) == 21", None, Some(&d)).unwrap();
py.run("assert obj.method(multiplier=6) == 42", None, Some(&d)).unwrap();
}
/*
#[py::class]
struct ClassMethod {}
#[py::methods]
impl ClassMethod {
#[new]
fn __new__(cls: &PyType, py: Python) -> PyResult<ClassMethod> {
ClassMethod::create_instance(py)
}
//#[classmethod]
//def method(cls) -> PyResult<String> {
// Ok(format!("{}.method()!", cls.name(py)))
//}
}
//#[test]
fn class_method() {
let gil = Python::acquire_gil();
let py = gil.python();
let d = PyDict::new(py);
d.set_item(py, "C", py.get_type::<ClassMethod>()).unwrap();
py.run("assert C.method() == 'ClassMethod.method()!'", None, Some(&d)).unwrap();
py.run("assert C().method() == 'ClassMethod.method()!'", None, Some(&d)).unwrap();
}*/
//py_class!(class ClassMethodWithArgs |py| {
// @classmethod
// def method(cls, input: &str) -> PyResult<String> {
// Ok(format!("{}.method({})", cls.name(py), input))
// }
//});
//#[test]
/*fn class_method_with_args() {
let gil = Python::acquire_gil();
let py = gil.python();
let d = PyDict::new(py);
d.set_item(py, "C", py.get_type::<ClassMethodWithArgs>()).unwrap();
py.run("assert C.method('abc') == 'ClassMethodWithArgs.method(abc)'", None, Some(&d)).unwrap();
}*/
#[py::class]
struct StaticMethod {}
#[py::methods]
impl StaticMethod {
#[new]
fn __new__(cls: &PyType, py: Python) -> PyResult<StaticMethod> {
StaticMethod::create_instance(py)
}
//#[staticmethod]
//fn method(py: Python) -> PyResult<&'static str> {
// Ok("StaticMethod.method()!")
//}
}
//#[test]
/*fn static_method() {
let gil = Python::acquire_gil();
let py = gil.python();
assert_eq!(StaticMethod::method(py).unwrap(), "StaticMethod.method()!");
let d = PyDict::new(py);
d.set_item(py, "C", py.get_type::<StaticMethod>()).unwrap();
py.run("assert C.method() == 'StaticMethod.method()!'", None, Some(&d)).unwrap();
py.run("assert C().method() == 'StaticMethod.method()!'", None, Some(&d)).unwrap();
}*/
//py_class!(class StaticMethodWithArgs |py| {
// @staticmethod
// def method(input: i32) -> PyResult<String> {
// Ok(format!("0x{:x}", input))
// }
//});
//#[test]
//fn static_method_with_args() {
// let gil = Python::acquire_gil();
// let py = gil.python();
// assert_eq!(StaticMethodWithArgs::method(py, 1234).unwrap(), "0x4d2");
// let d = PyDict::new(py);
// d.set_item(py, "C", py.get_type::<StaticMethodWithArgs>()).unwrap();
// py.run("assert C.method(1337) == '0x539'", None, Some(&d)).unwrap();
//}
#[py::class]
struct GCIntegration {
self_ref: RefCell<PyObject>,
dropped: TestDropCall,
}
#[py::proto]
impl PyGCProtocol for GCIntegration {
fn __traverse__(&self, py: Python, visit: PyVisit) -> Result<(), PyTraverseError> {
visit.call(&*self.self_ref(py).borrow())
}
fn __clear__(&self, py: Python) {
let old_ref = mem::replace(&mut *self.self_ref(py).borrow_mut(), py.None());
// Release reference only after the mutable borrow has expired.
old_ref.release_ref(py);
}
}
#[test]
fn gc_integration() {
let gil = Python::acquire_gil();
let py = gil.python();
let drop_called = Arc::new(AtomicBool::new(false));
let inst = GCIntegration::create_instance(py,
RefCell::new(py.None()),
TestDropCall { drop_called: drop_called.clone() }
).unwrap();
*inst.self_ref(py).borrow_mut() = inst.as_object().clone_ref(py);
inst.release_ref(py);
py.run("import gc; gc.collect()", None, None).unwrap();
assert!(drop_called.load(Ordering::Relaxed));
}
#[py::class]
pub struct Len {
l: usize
}
#[py::proto]
impl PyMappingProtocol for Len {
fn __len__(&self, py: Python) -> PyResult<usize> {
Ok(*self.l(py))
}
}
#[test]
fn len() {
let gil = Python::acquire_gil();
let py = gil.python();
let inst = Len::create_instance(py, 10).unwrap();
py_assert!(py, inst, "len(inst) == 10");
unsafe {
assert_eq!(ffi::PyObject_Size(inst.as_object().as_ptr()), 10);
assert_eq!(ffi::PyMapping_Size(inst.as_object().as_ptr()), 10);
}
let inst = Len::create_instance(py, (isize::MAX as usize) + 1).unwrap();
py_expect_exception!(py, inst, "len(inst)", OverflowError);
}
/*py_class!(class Iterator |py| {
data iter: RefCell<Box<iter::Iterator<Item=i32> + Send>>;
def __iter__(&self) -> PyResult<Iterator> {
Ok(self.clone_ref(py))
}
def __next__(&self) -> PyResult<Option<i32>> {
Ok(self.iter(py).borrow_mut().next())
}
});
#[test]
fn iterator() {
let gil = Python::acquire_gil();
let py = gil.python();
let inst = Iterator::create_instance(py, RefCell::new(Box::new(5..8))).unwrap();
py_assert!(py, inst, "iter(inst) is inst");
py_assert!(py, inst, "list(inst) == [5, 6, 7]");
}*/
#[py::class]
struct StringMethods {}
#[py::proto]
impl PyObjectProtocol for StringMethods {
fn __str__(&self) -> PyResult<&'static str> {
Ok("str")
}
fn __repr__(&self) -> PyResult<&'static str> {
Ok("repr")
}
fn __format__(&self, format_spec: String) -> PyResult<String> {
Ok(format!("format({})", format_spec))
}
//fn __unicode__(&self) -> PyResult<PyString> {
// Ok(PyString::new(py, "unicode"))
//}
fn __bytes__(&self) -> PyResult<PyBytes> {
Ok(PyBytes::new(py, b"bytes"))
}
}
#[test]
fn string_methods() {
let gil = Python::acquire_gil();
let py = gil.python();
let obj = StringMethods::create_instance(py).unwrap();
py_assert!(py, obj, "str(obj) == 'str'");
py_assert!(py, obj, "repr(obj) == 'repr'");
py_assert!(py, obj, "'{0:x}'.format(obj) == 'format(x)'");
py_assert!(py, obj, "bytes(obj) == b'bytes'");
}
#[py::class]
struct Comparisons {
val: i32,
}
#[py::proto]
impl PyObjectProtocol for Comparisons {
fn __hash__(&self) -> PyResult<usize> {
Ok(*self.val(py) as usize)
}
fn __bool__(&self) -> PyResult<bool> {
Ok(*self.val(py) != 0)
}
}
#[test]
fn comparisons() {
let gil = Python::acquire_gil();
let py = gil.python();
let zero = Comparisons::create_instance(py, 0).unwrap();
let one = Comparisons::create_instance(py, 1).unwrap();
let ten = Comparisons::create_instance(py, 10).unwrap();
let minus_one = Comparisons::create_instance(py, -1).unwrap();
py_assert!(py, one, "hash(one) == 1");
py_assert!(py, ten, "hash(ten) == 10");
py_assert!(py, minus_one, "hash(minus_one) == -2");
py_assert!(py, one, "bool(one) is True");
py_assert!(py, zero, "not zero");
}
#[py::class]
struct Sequence {}
#[py::proto]
impl PySequenceProtocol for Sequence {
fn __len__(&self) -> PyResult<usize> {
Ok(5)
}
fn __getitem__(&self, key: isize) -> PyResult<isize> {
if key == 5 {
return Err(PyErr::new::<exc::IndexError, NoArgs>(py, NoArgs));
}
Ok(key)
}
}
#[test]
fn sequence() {
let gil = Python::acquire_gil();
let py = gil.python();
let c = Sequence::create_instance(py).unwrap();
py_assert!(py, c, "list(c) == [0, 1, 2, 3, 4]");
py_expect_exception!(py, c, "c['abc']", TypeError);
}
#[py::class]
struct Callable {}
#[py::methods]
impl Callable {
#[__call__]
fn __call__(&self, arg: i32) -> PyResult<i32> {
Ok(arg * 6)
}
}
#[test]
fn callable() {
let gil = Python::acquire_gil();
let py = gil.python();
let c = Callable::create_instance(py).unwrap();
py_assert!(py, c, "callable(c)");
py_assert!(py, c, "c(7) == 42");
let nc = Comparisons::create_instance(py, 0).unwrap();
py_assert!(py, nc, "not callable(nc)");
}
#[py::class]
struct SetItem {
key: i32,
val: i32,
}
#[py::proto]
impl PyMappingProtocol<'a> for SetItem {
fn __setitem__(&self, key: i32, val: i32) -> PyResult<()> {
*self.key_mut(py) = key;
*self.val_mut(py) = val;
Ok(())
}
}
#[test]
fn setitem() {
let gil = Python::acquire_gil();
let py = gil.python();
let c = SetItem::create_instance(0, 0).unwrap();
py_run!(py, c, "c[1] = 2");
assert_eq!(c.key, 1);
assert_eq!(c.val, 2);
py_expect_exception!(py, c, "del c[1]", NotImplementedError);
}
#[py::class]
struct DelItem {
key: i32,
}
#[py::proto]
impl PyMappingProtocol<'a> for DelItem {
fn __delitem__(&self, key: i32) -> PyResult<()> {
*self.key_mut(py) = key;
Ok(())
}
}
#[test]
fn delitem() {
let gil = Python::acquire_gil();
let py = gil.python();
let c = DelItem::create_instance(py, 0).unwrap();
py_run!(py, c, "del c[1]");
assert_eq!(*c.key(py), 1);
py_expect_exception!(py, c, "c[1] = 2", NotImplementedError);
}
#[py::class]
struct SetDelItem {
val: Option<i32>,
}
#[py::proto]
impl PyMappingProtocol for SetDelItem {
fn __setitem__(&self, key: i32, val: i32) -> PyResult<()> {
*self.val_mut(py) = Some(val);
Ok(())
}
fn __delitem__(&self, key: i32) -> PyResult<()> {
*self.val_mut(py) = None;
Ok(())
}
}
#[test]
fn setdelitem() {
let gil = Python::acquire_gil();
let py = gil.python();
let c = SetDelItem::create_instance(py, None).unwrap();
py_run!(py, c, "c[1] = 2");
assert_eq!(*c.val(py), Some(2));
py_run!(py, c, "del c[1]");
assert_eq!(*c.val(py), None);
}
#[py::class]
struct Reversed {}
#[py::proto]
impl PyMappingProtocol for Reversed{
fn __reversed__(&self) -> PyResult<&'static str> {
println!("__reversed__");
Ok("I am reversed")
}
}
#[test]
fn reversed() {
let gil = Python::acquire_gil();
let py = gil.python();
let c = Reversed::create_instance(py).unwrap();
py_run!(py, c, "assert reversed(c) == 'I am reversed'");
}
#[py::class]
struct Contains {}
#[py::proto]
impl PySequenceProtocol for Contains {
fn __contains__(&self, item: i32) -> PyResult<bool> {
Ok(item >= 0)
}
}
#[test]
fn contains() {
let gil = Python::acquire_gil();
let py = gil.python();
let c = Contains::create_instance(py).unwrap();
py_run!(py, c, "assert 1 in c");
py_run!(py, c, "assert -1 not in c");
py_expect_exception!(py, c, "assert 'wrong type' not in c", TypeError);
}
#[py::class]
struct UnaryArithmetic {}
#[py::proto]
impl PyNumberProtocol for UnaryArithmetic {
fn __neg__(&self) -> PyResult<&'static str> {
Ok("neg")
}
fn __pos__(&self) -> PyResult<&'static str> {
Ok("pos")
}
fn __abs__(&self) -> PyResult<&'static str> {
Ok("abs")
}
fn __invert__(&self) -> PyResult<&'static str> {
Ok("invert")
}
}
#[test]
fn unary_arithmetic() {
let gil = Python::acquire_gil();
let py = gil.python();
let c = UnaryArithmetic::create_instance(py).unwrap();
py_run!(py, c, "assert -c == 'neg'");
py_run!(py, c, "assert +c == 'pos'");
py_run!(py, c, "assert abs(c) == 'abs'");
py_run!(py, c, "assert ~c == 'invert'");
}
#[py::class]
struct BinaryArithmetic {}
#[py::proto]
impl PyObjectProtocol for BinaryArithmetic {
fn __repr__(&self) -> PyResult<&'static str> {
Ok("BA")
}
}
#[py::proto]
impl PyNumberProtocol for BinaryArithmetic {
fn __add__(&self, rhs: PyObject) -> PyResult<String> {
Ok(format!("{:?} + {:?}", self.as_object(), rhs))
}
fn __sub__(&self, rhs: PyObject) -> PyResult<String> {
Ok(format!("{:?} - {:?}", self.as_object(), rhs))
}
fn __mul__(&self, rhs: PyObject) -> PyResult<String> {
Ok(format!("{:?} * {:?}", self.as_object(), rhs))
}
fn __lshift__(&self, rhs: PyObject) -> PyResult<String> {
Ok(format!("{:?} << {:?}", self.as_object(), rhs))
}
fn __rshift__(&self, rhs: PyObject) -> PyResult<String> {
Ok(format!("{:?} >> {:?}", self.as_object(), rhs))
}
fn __and__(&self, rhs: PyObject) -> PyResult<String> {
Ok(format!("{:?} & {:?}", self.as_object(), rhs))
}
fn __xor__(&self, rhs: PyObject) -> PyResult<String> {
Ok(format!("{:?} ^ {:?}", self.as_object(), rhs))
}
fn __or__(&self, rhs: PyObject) -> PyResult<String> {
Ok(format!("{:?} | {:?}", self.as_object(), rhs))
}
}
#[test]
fn binary_arithmetic() {
let gil = Python::acquire_gil();
let py = gil.python();
let c = BinaryArithmetic::create_instance(py).unwrap();
py_run!(py, c, "assert c + c == 'BA + BA'");
py_run!(py, c, "assert c + 1 == 'BA + 1'");
py_run!(py, c, "assert 1 + c == '1 + BA'");
py_run!(py, c, "assert c - 1 == 'BA - 1'");
py_run!(py, c, "assert 1 - c == '1 - BA'");
py_run!(py, c, "assert c * 1 == 'BA * 1'");
py_run!(py, c, "assert 1 * c == '1 * BA'");
py_run!(py, c, "assert c << 1 == 'BA << 1'");
py_run!(py, c, "assert 1 << c == '1 << BA'");
py_run!(py, c, "assert c >> 1 == 'BA >> 1'");
py_run!(py, c, "assert 1 >> c == '1 >> BA'");
py_run!(py, c, "assert c & 1 == 'BA & 1'");
py_run!(py, c, "assert 1 & c == '1 & BA'");
py_run!(py, c, "assert c ^ 1 == 'BA ^ 1'");
py_run!(py, c, "assert 1 ^ c == '1 ^ BA'");
py_run!(py, c, "assert c | 1 == 'BA | 1'");
py_run!(py, c, "assert 1 | c == '1 | BA'");
}
#[py::class]
struct RichComparisons {}
#[py::proto]
impl PyObjectProtocol for RichComparisons {
fn __repr__(&self) -> PyResult<&'static str> {
Ok("RC")
}
fn __richcmp__(&self, other: PyObject, op: CompareOp) -> PyResult<String> {
match op {
CompareOp::Lt => Ok(format!("{:?} < {:?}", self.as_object(), other)),
CompareOp::Le => Ok(format!("{:?} <= {:?}", self.as_object(), other)),
CompareOp::Eq => Ok(format!("{:?} == {:?}", self.as_object(), other)),
CompareOp::Ne => Ok(format!("{:?} != {:?}", self.as_object(), other)),
CompareOp::Gt => Ok(format!("{:?} > {:?}", self.as_object(), other)),
CompareOp::Ge => Ok(format!("{:?} >= {:?}", self.as_object(), other))
}
}
}
#[py::class]
struct RichComparisons2 {}
#[py::proto]
impl PyObjectProtocol for RichComparisons2 {
fn __repr__(&self) -> PyResult<&'static str> {
Ok("RC2")
}
fn __richcmp__(&self, other: PyObject, op: CompareOp) -> PyResult<PyObject> {
match op {
CompareOp::Eq => Ok(true.to_py_object(py).into_object()),
CompareOp::Ne => Ok(false.to_py_object(py).into_object()),
_ => Ok(py.NotImplemented())
}
}
}
#[test]
fn rich_comparisons() {
let gil = Python::acquire_gil();
let py = gil.python();
let c = RichComparisons::create_instance(py).unwrap();
py_run!(py, c, "assert (c < c) == 'RC < RC'");
py_run!(py, c, "assert (c < 1) == 'RC < 1'");
py_run!(py, c, "assert (1 < c) == 'RC > 1'");
py_run!(py, c, "assert (c <= c) == 'RC <= RC'");
py_run!(py, c, "assert (c <= 1) == 'RC <= 1'");
py_run!(py, c, "assert (1 <= c) == 'RC >= 1'");
py_run!(py, c, "assert (c == c) == 'RC == RC'");
py_run!(py, c, "assert (c == 1) == 'RC == 1'");
py_run!(py, c, "assert (1 == c) == 'RC == 1'");
py_run!(py, c, "assert (c != c) == 'RC != RC'");
py_run!(py, c, "assert (c != 1) == 'RC != 1'");
py_run!(py, c, "assert (1 != c) == 'RC != 1'");
py_run!(py, c, "assert (c > c) == 'RC > RC'");
py_run!(py, c, "assert (c > 1) == 'RC > 1'");
py_run!(py, c, "assert (1 > c) == 'RC < 1'");
py_run!(py, c, "assert (c >= c) == 'RC >= RC'");
py_run!(py, c, "assert (c >= 1) == 'RC >= 1'");
py_run!(py, c, "assert (1 >= c) == 'RC <= 1'");
}
#[test]
fn rich_comparisons_python_3_type_error() {
let gil = Python::acquire_gil();
let py = gil.python();
let c2 = RichComparisons2::create_instance(py).unwrap();
py_expect_exception!(py, c2, "c2 < c2", TypeError);
py_expect_exception!(py, c2, "c2 < 1", TypeError);
py_expect_exception!(py, c2, "1 < c2", TypeError);
py_expect_exception!(py, c2, "c2 <= c2", TypeError);
py_expect_exception!(py, c2, "c2 <= 1", TypeError);
py_expect_exception!(py, c2, "1 <= c2", TypeError);
py_run!(py, c2, "assert (c2 == c2) == True");
py_run!(py, c2, "assert (c2 == 1) == True");
py_run!(py, c2, "assert (1 == c2) == True");
py_run!(py, c2, "assert (c2 != c2) == False");
py_run!(py, c2, "assert (c2 != 1) == False");
py_run!(py, c2, "assert (1 != c2) == False");
py_expect_exception!(py, c2, "c2 > c2", TypeError);
py_expect_exception!(py, c2, "c2 > 1", TypeError);
py_expect_exception!(py, c2, "1 > c2", TypeError);
py_expect_exception!(py, c2, "c2 >= c2", TypeError);
py_expect_exception!(py, c2, "c2 >= 1", TypeError);
py_expect_exception!(py, c2, "1 >= c2", TypeError);
}
#[py::class]
struct InPlaceOperations {
value: u32
}
#[py::proto]
impl PyObjectProtocol for InPlaceOperations {
fn __repr__(&self) -> PyResult<String> {
Ok(format!("IPO({:?})", self.value(py)))
}
}
#[py::proto]
impl PyNumberProtocol for InPlaceOperations {
fn __iadd__(&self, other: u32) -> PyResult<Self> {
*self.value_mut(py) = *self.value(py) + other;
Ok(self.clone_ref(py))
}
fn __isub__(&self, other: u32) -> PyResult<Self> {
*self.value_mut(py) = *self.value(py) - other;
Ok(self.clone_ref(py))
}
fn __imul__(&self, other: u32) -> PyResult<Self> {
*self.value_mut(py) = *self.value(py) * other;
Ok(self.clone_ref(py))
}
fn __ilshift__(&self, other: u32) -> PyResult<Self> {
*self.value_mut(py) = *self.value(py) << other;
Ok(self.clone_ref(py))
}
fn __irshift__(&self, other: u32) -> PyResult<Self> {
*self.value_mut(py) = *self.value(py) >> other;
Ok(self.clone_ref(py))
}
fn __iand__(&self, other: u32) -> PyResult<Self> {
*self.value_mut(py) = *self.value(py) & other;
Ok(self.clone_ref(py))
}
fn __ixor__(&self, other: u32) -> PyResult<Self> {
*self.value_mut(py) = *self.value(py) ^ other;
Ok(self.clone_ref(py))
}
fn __ior__(&self, other: u32) -> PyResult<Self> {
*self.value_mut(py) = *self.value(py) | other;
Ok(self.clone_ref(py))
}
}
#[test]
fn inplace_operations() {
let gil = Python::acquire_gil();
let py = gil.python();
let c = InPlaceOperations::create_instance(py, 0).unwrap();
py_run!(py, c, "d = c; c += 1; assert repr(c) == repr(d) == 'IPO(1)'");
let c = InPlaceOperations::create_instance(py, 10).unwrap();
py_run!(py, c, "d = c; c -= 1; assert repr(c) == repr(d) == 'IPO(9)'");
let c = InPlaceOperations::create_instance(py, 3).unwrap();
py_run!(py, c, "d = c; c *= 3; assert repr(c) == repr(d) == 'IPO(9)'");
let c = InPlaceOperations::create_instance(py, 3).unwrap();
py_run!(py, c, "d = c; c <<= 2; assert repr(c) == repr(d) == 'IPO(12)'");
let c = InPlaceOperations::create_instance(py, 12).unwrap();
py_run!(py, c, "d = c; c >>= 2; assert repr(c) == repr(d) == 'IPO(3)'");
let c = InPlaceOperations::create_instance(py, 12).unwrap();
py_run!(py, c, "d = c; c &= 10; assert repr(c) == repr(d) == 'IPO(8)'");
let c = InPlaceOperations::create_instance(py, 12).unwrap();
py_run!(py, c, "d = c; c |= 3; assert repr(c) == repr(d) == 'IPO(15)'");
let c = InPlaceOperations::create_instance(py, 12).unwrap();
py_run!(py, c, "d = c; c ^= 5; assert repr(c) == repr(d) == 'IPO(9)'");
}
#[py::class]
struct ContextManager {
exit_called: bool
}
#[py::proto]
impl<'p> PyContextProtocol<'p> for ContextManager {
fn __enter__(&self) -> PyResult<i32> {
Ok(42)
}
fn __exit__(&mut self,
ty: Option<&'p PyType>,
value: Option<&'p PyObject>,
traceback: Option<&'p PyObject>) -> PyResult<bool> {
self.exit_called = true;
if ty == Some(py.get_type::<exc::ValueError>()) {
Ok(true)
} else {
Ok(false)
}
}
}
#[test]
fn context_manager() {
let gil = Python::acquire_gil();
let py = gil.python();
let c = ContextManager::create_instance(py, false).unwrap();
py_run!(py, c, "with c as x:\n assert x == 42");
assert!(*c.exit_called(py));
*c.exit_called_mut(py) = false;
py_run!(py, c, "with c as x:\n raise ValueError");
assert!(*c.exit_called(py));
*c.exit_called_mut(py) = false;
py_expect_exception!(py, c, "with c as x:\n raise NotImplementedError", NotImplementedError);
assert!(*c.exit_called(py));
}
#[py::class]
struct ClassWithProperties {
num: i32
}
#[py::methods]
impl ClassWithProperties {
fn get_num(&self) -> PyResult<i32> {
Ok(*self.num(py))
}
#[getter(DATA)]
fn get_data(&self) -> PyResult<i32> {
Ok(*self.num(py))
}
#[setter(DATA)]
fn set(&self, value: i32) -> PyResult<()> {
*self.num_mut(py) = value;
Ok(())
}
}
#[test]
fn class_with_properties() {
let gil = Python::acquire_gil();
let py = gil.python();
let inst = ClassWithProperties::create_instance(py, 10).unwrap();
py_run!(py, inst, "assert inst.get_num() == 10");
py_run!(py, inst, "assert inst.get_num() == inst.DATA");
py_run!(py, inst, "inst.DATA = 20");
py_run!(py, inst, "assert inst.get_num() == 20");
py_run!(py, inst, "assert inst.get_num() == inst.DATA");
}