Function test_trap_return

tests/all/traps.rs:13–38

()

#[test]
fn test_trap_return() -> Result<()> {
    let mut store = Store::<()>::default();
    let wat = r#"
        (module
        (func $hello (import "" "hello"))
        (func (export "run") (call $hello))
        )
    "#;

    let module = Module::new(store.engine(), wat)?;
    let hello_type = FuncType::new(store.engine(), None, None);
    let hello_func = Func::new(&mut store, hello_type, |_, _, _| bail!("test 123"));

    let instance = Instance::new(&mut store, &module, &[hello_func.into()])?;
    let run_func = instance.get_typed_func::<(), ()>(&mut store, "run")?;

    let e = run_func.call(&mut store, ()).unwrap_err();
    e.assert_contains("test 123");

    assert!(
        e.downcast_ref::<WasmBacktrace>().is_some(),
        "error should contain a WasmBacktrace"
    );

    Ok(())
}

#[test]
fn test_format_err_error_return() -> Result<()> {