pyo3/tests/test_module.rs

434 lines
10 KiB
Rust

use pyo3::prelude::*;
use pyo3::py_run;
use pyo3::types::{IntoPyDict, PyDict, PyTuple};
mod common;
#[pyclass]
struct AnonClass {}
#[pyclass]
struct ValueClass {
value: usize,
}
#[pymethods]
impl ValueClass {
#[new]
fn new(value: usize) -> ValueClass {
ValueClass { value }
}
}
#[pyclass(module = "module")]
struct LocatedClass {}
fn sum_as_string(a: i64, b: i64) -> String {
format!("{}", a + b)
}
#[pyfunction]
/// Doubles the given value
fn double(x: usize) -> usize {
x * 2
}
/// This module is implemented in Rust.
#[pymodule]
fn module_with_functions(_py: Python, m: &PyModule) -> PyResult<()> {
use pyo3::wrap_pyfunction;
#[pyfn(m, "sum_as_string")]
fn sum_as_string_py(_py: Python, a: i64, b: i64) -> String {
sum_as_string(a, b)
}
#[pyfn(m, "no_parameters")]
fn no_parameters() -> usize {
42
}
#[pyfn(m, "with_module", pass_module)]
fn with_module(module: &PyModule) -> PyResult<&str> {
module.name()
}
#[pyfn(m, "double_value")]
fn double_value(v: &ValueClass) -> usize {
v.value * 2
}
m.add_class::<AnonClass>().unwrap();
m.add_class::<ValueClass>().unwrap();
m.add_class::<LocatedClass>().unwrap();
m.add("foo", "bar").unwrap();
m.add_function(wrap_pyfunction!(double, m)?).unwrap();
m.add("also_double", wrap_pyfunction!(double, m)?).unwrap();
Ok(())
}
#[test]
fn test_module_with_functions() {
use pyo3::wrap_pymodule;
let gil = Python::acquire_gil();
let py = gil.python();
let d = [(
"module_with_functions",
wrap_pymodule!(module_with_functions)(py),
)]
.into_py_dict(py);
py_assert!(
py,
*d,
"module_with_functions.__doc__ == 'This module is implemented in Rust.'"
);
py_assert!(py, *d, "module_with_functions.sum_as_string(1, 2) == '3'");
py_assert!(py, *d, "module_with_functions.no_parameters() == 42");
py_assert!(py, *d, "module_with_functions.foo == 'bar'");
py_assert!(py, *d, "module_with_functions.AnonClass != None");
py_assert!(py, *d, "module_with_functions.LocatedClass != None");
py_assert!(
py,
*d,
"module_with_functions.LocatedClass.__module__ == 'module'"
);
py_assert!(py, *d, "module_with_functions.double(3) == 6");
py_assert!(
py,
*d,
"module_with_functions.double.__doc__ == 'Doubles the given value'"
);
py_assert!(py, *d, "module_with_functions.also_double(3) == 6");
py_assert!(
py,
*d,
"module_with_functions.also_double.__doc__ == 'Doubles the given value'"
);
py_assert!(
py,
*d,
"module_with_functions.double_value(module_with_functions.ValueClass(1)) == 2"
);
py_assert!(
py,
*d,
"module_with_functions.with_module() == 'module_with_functions'"
);
}
#[pymodule(other_name)]
fn some_name(_: Python, m: &PyModule) -> PyResult<()> {
m.add("other_name", "other_name")?;
Ok(())
}
#[test]
fn test_module_renaming() {
use pyo3::wrap_pymodule;
let gil = Python::acquire_gil();
let py = gil.python();
let d = [("different_name", wrap_pymodule!(other_name)(py))].into_py_dict(py);
py_run!(py, *d, "assert different_name.__name__ == 'other_name'");
}
#[test]
fn test_module_from_code() {
let gil = Python::acquire_gil();
let py = gil.python();
let adder_mod = PyModule::from_code(
py,
"def add(a,b):\n\treturn a+b",
"adder_mod.py",
"adder_mod",
)
.expect("Module code should be loaded");
let add_func = adder_mod
.getattr("add")
.expect("Add function should be in the module")
.to_object(py);
let ret_value: i32 = add_func
.call1(py, (1, 2))
.expect("A value should be returned")
.extract(py)
.expect("The value should be able to be converted to an i32");
assert_eq!(ret_value, 3);
}
#[pyfunction]
fn r#move() -> usize {
42
}
#[pymodule]
fn raw_ident_module(_py: Python, module: &PyModule) -> PyResult<()> {
use pyo3::wrap_pyfunction;
module.add_function(wrap_pyfunction!(r#move, module)?)
}
#[test]
fn test_raw_idents() {
use pyo3::wrap_pymodule;
let gil = Python::acquire_gil();
let py = gil.python();
let module = wrap_pymodule!(raw_ident_module)(py);
py_assert!(py, module, "module.move() == 42");
}
#[pyfunction]
#[name = "foobar"]
fn custom_named_fn() -> usize {
42
}
#[pymodule]
fn foobar_module(_py: Python, m: &PyModule) -> PyResult<()> {
use pyo3::wrap_pyfunction;
m.add_function(wrap_pyfunction!(custom_named_fn, m)?)?;
m.dict().set_item("yay", "me")?;
Ok(())
}
#[test]
fn test_custom_names() {
let gil = Python::acquire_gil();
let py = gil.python();
let module = pyo3::wrap_pymodule!(foobar_module)(py);
py_assert!(py, module, "not hasattr(module, 'custom_named_fn')");
py_assert!(py, module, "module.foobar() == 42");
}
#[test]
fn test_module_dict() {
let gil = Python::acquire_gil();
let py = gil.python();
let module = pyo3::wrap_pymodule!(foobar_module)(py);
py_assert!(py, module, "module.yay == 'me'");
}
#[test]
fn test_module_dunder_all() {
let gil = Python::acquire_gil();
let py = gil.python();
let module = pyo3::wrap_pymodule!(foobar_module)(py);
py_assert!(py, module, "module.__all__ == ['foobar']");
}
#[pyfunction]
fn subfunction() -> String {
"Subfunction".to_string()
}
fn submodule(module: &PyModule) -> PyResult<()> {
use pyo3::wrap_pyfunction;
module.add_function(wrap_pyfunction!(subfunction, module)?)?;
Ok(())
}
#[pymodule]
fn submodule_with_init_fn(_py: Python, module: &PyModule) -> PyResult<()> {
use pyo3::wrap_pyfunction;
module.add_function(wrap_pyfunction!(subfunction, module)?)?;
Ok(())
}
#[pyfunction]
fn superfunction() -> String {
"Superfunction".to_string()
}
#[pymodule]
fn supermodule(py: Python, module: &PyModule) -> PyResult<()> {
use pyo3::wrap_pyfunction;
module.add_function(wrap_pyfunction!(superfunction, module)?)?;
let module_to_add = PyModule::new(py, "submodule")?;
submodule(module_to_add)?;
module.add_submodule(module_to_add)?;
let module_to_add = PyModule::new(py, "submodule_with_init_fn")?;
submodule_with_init_fn(py, module_to_add)?;
module.add_submodule(module_to_add)?;
Ok(())
}
#[test]
fn test_module_nesting() {
use pyo3::wrap_pymodule;
let gil = Python::acquire_gil();
let py = gil.python();
let supermodule = wrap_pymodule!(supermodule)(py);
py_assert!(
py,
supermodule,
"supermodule.superfunction() == 'Superfunction'"
);
py_assert!(
py,
supermodule,
"supermodule.submodule.subfunction() == 'Subfunction'"
);
py_assert!(
py,
supermodule,
"supermodule.submodule_with_init_fn.subfunction() == 'Subfunction'"
);
}
// Test that argument parsing specification works for pyfunctions
#[pyfunction(a = 5, vararg = "*")]
fn ext_vararg_fn(py: Python, a: i32, vararg: &PyTuple) -> PyObject {
[a.to_object(py), vararg.into()].to_object(py)
}
#[pymodule]
fn vararg_module(_py: Python, m: &PyModule) -> PyResult<()> {
#[pyfn(m, "int_vararg_fn", a = 5, vararg = "*")]
fn int_vararg_fn(py: Python, a: i32, vararg: &PyTuple) -> PyObject {
ext_vararg_fn(py, a, vararg)
}
m.add_function(pyo3::wrap_pyfunction!(ext_vararg_fn, m)?)
.unwrap();
Ok(())
}
#[test]
fn test_vararg_module() {
let gil = Python::acquire_gil();
let py = gil.python();
let m = pyo3::wrap_pymodule!(vararg_module)(py);
py_assert!(py, m, "m.ext_vararg_fn() == [5, ()]");
py_assert!(py, m, "m.ext_vararg_fn(1, 2) == [1, (2,)]");
py_assert!(py, m, "m.int_vararg_fn() == [5, ()]");
py_assert!(py, m, "m.int_vararg_fn(1, 2) == [1, (2,)]");
}
#[test]
fn test_module_with_constant() {
// Regression test for #1102
#[pymodule]
fn module_with_constant(_py: Python, m: &PyModule) -> PyResult<()> {
const ANON: AnonClass = AnonClass {};
m.add("ANON", ANON)?;
m.add_class::<AnonClass>()?;
Ok(())
}
Python::with_gil(|py| {
let m = pyo3::wrap_pymodule!(module_with_constant)(py);
py_assert!(py, m, "isinstance(m.ANON, m.AnonClass)");
});
}
#[pyfunction(pass_module)]
fn pyfunction_with_module(module: &PyModule) -> PyResult<&str> {
module.name()
}
#[pyfunction(pass_module)]
fn pyfunction_with_module_and_py<'a>(
module: &'a PyModule,
_python: Python<'a>,
) -> PyResult<&'a str> {
module.name()
}
#[pyfunction(pass_module)]
fn pyfunction_with_module_and_arg(module: &PyModule, string: String) -> PyResult<(&str, String)> {
module.name().map(|s| (s, string))
}
#[pyfunction(pass_module, string = "\"foo\"")]
fn pyfunction_with_module_and_default_arg<'a>(
module: &'a PyModule,
string: &str,
) -> PyResult<(&'a str, String)> {
module.name().map(|s| (s, string.into()))
}
#[pyfunction(pass_module, args = "*", kwargs = "**")]
fn pyfunction_with_module_and_args_kwargs<'a>(
module: &'a PyModule,
args: &PyTuple,
kwargs: Option<&PyDict>,
) -> PyResult<(&'a str, usize, Option<usize>)> {
module
.name()
.map(|s| (s, args.len(), kwargs.map(|d| d.len())))
}
#[pymodule]
fn module_with_functions_with_module(_py: Python, m: &PyModule) -> PyResult<()> {
m.add_function(pyo3::wrap_pyfunction!(pyfunction_with_module, m)?)?;
m.add_function(pyo3::wrap_pyfunction!(pyfunction_with_module_and_py, m)?)?;
m.add_function(pyo3::wrap_pyfunction!(pyfunction_with_module_and_arg, m)?)?;
m.add_function(pyo3::wrap_pyfunction!(
pyfunction_with_module_and_default_arg,
m
)?)?;
m.add_function(pyo3::wrap_pyfunction!(
pyfunction_with_module_and_args_kwargs,
m
)?)
}
#[test]
fn test_module_functions_with_module() {
let gil = Python::acquire_gil();
let py = gil.python();
let m = pyo3::wrap_pymodule!(module_with_functions_with_module)(py);
py_assert!(
py,
m,
"m.pyfunction_with_module() == 'module_with_functions_with_module'"
);
py_assert!(
py,
m,
"m.pyfunction_with_module_and_py() == 'module_with_functions_with_module'"
);
py_assert!(
py,
m,
"m.pyfunction_with_module_and_default_arg() \
== ('module_with_functions_with_module', 'foo')"
);
py_assert!(
py,
m,
"m.pyfunction_with_module_and_args_kwargs(1, x=1, y=2) \
== ('module_with_functions_with_module', 1, 2)"
);
}