63 lines
2.0 KiB
Rust
63 lines
2.0 KiB
Rust
//! Useful tips for writing tests:
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//! - Tests are run in parallel; There's still a race condition in test_owned with some other test
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//! - You need to use flush=True to get any output from print
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/// Removes indentation from multiline strings in pyrun commands
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#[allow(unused)] // macro scoping is fooling the compiler
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pub fn indoc(commands: &str) -> String {
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let indent;
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if let Some(second) = commands.lines().nth(1) {
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indent = second
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.chars()
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.take_while(char::is_ascii_whitespace)
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.collect::<String>();
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} else {
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indent = "".to_string();
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}
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commands
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.trim_end()
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.replace(&("\n".to_string() + &indent), "\n")
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+ "\n"
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}
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#[macro_export]
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macro_rules! py_run {
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($py:expr, $val:expr, $code:expr) => {{
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use pyo3::types::IntoPyDict;
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let d = [(stringify!($val), &$val)].into_py_dict($py);
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$py.run(&common::indoc($code), None, Some(d))
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.map_err(|e| {
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e.print($py);
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// So when this c api function the last line called printed the error to stderr,
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// the output is only written into a buffer which is never flushed because we
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// panic before flushing. This is where this hack comes into place
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$py.run("import sys; sys.stderr.flush()", None, None)
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.unwrap();
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})
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.expect(&common::indoc($code))
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}};
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}
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#[macro_export]
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macro_rules! py_assert {
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($py:expr, $val:ident, $assertion:expr) => {
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py_run!($py, $val, concat!("assert ", $assertion))
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};
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}
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#[macro_export]
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macro_rules! py_expect_exception {
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($py:expr, $val:ident, $code:expr, $err:ident) => {{
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use pyo3::types::IntoPyDict;
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let d = [(stringify!($val), &$val)].into_py_dict($py);
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let res = $py.run($code, None, Some(d));
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let err = res.unwrap_err();
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if !err.matches($py, $py.get_type::<pyo3::exceptions::$err>()) {
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panic!(format!("Expected {} but got {:?}", stringify!($err), err))
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}
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}};
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}
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