use wasm_bindgen::JsValue; use wasm_bindgen_test::*; use wasm_bindgen::JsCast; use js_sys::*; #[wasm_bindgen_test] fn range_error() { let error = RangeError::new("out of range yo"); assert!(error.is_instance_of::()); assert!(error.is_instance_of::()); assert!(error.is_instance_of::()); let base: &Error = error.as_ref(); assert_eq!(JsValue::from(base.message()), "out of range yo"); }