pyo3/tests/common.rs

50 lines
1.4 KiB
Rust

/// Removes indentation from multiline strings in pyrun commands
#[allow(unused)] // macro scoping is fooling the compiler
pub fn indoc(commands: &str) -> String {
let indent;
if let Some(second) = commands.lines().nth(1) {
indent = second
.chars()
.take_while(char::is_ascii_whitespace)
.collect::<String>();
} else {
indent = "".to_string();
}
commands
.trim_right()
.replace(&("\n".to_string() + &indent), "\n")
+ "\n"
}
#[macro_export]
macro_rules! py_run {
($py:expr, $val:expr, $code:expr) => {{
let d = PyDict::new($py);
d.set_item(stringify!($val), &$val).unwrap();
$py.run(&common::indoc($code), None, Some(d))
.map_err(|e| e.print($py))
.expect(&common::indoc($code))
}};
}
#[macro_export]
macro_rules! py_assert {
($py:expr, $val:ident, $assertion:expr) => {
py_run!($py, $val, concat!("assert ", $assertion))
};
}
#[macro_export]
macro_rules! py_expect_exception {
($py:expr, $val:ident, $code:expr, $err:ident) => {{
let d = PyDict::new($py);
d.set_item(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))
}
}};
}