pyo3/tests/test_compile_error.rs

#[test]
fn test_compile_errors() {
    let t = trybuild::TestCases::new();
    t.compile_fail("tests/ui/reject_generics.rs");
    t.compile_fail("tests/ui/too_many_args_to_getter.rs");
    t.compile_fail("tests/ui/invalid_pymethod_names.rs");
}