wasm-bindgen/crates/js-sys/tests/wasm/Generator.rs
Alex Crichton d5b81595ec Remove support for the version attribute
First added in #161 this never ended up panning out, so let's remove the
experimental suport which isn't actually used by anything today and hold off on
any other changes until an RFC happens.
2018-08-06 13:30:28 -05:00

59 lines
1.6 KiB
Rust

use wasm_bindgen::prelude::*;
use wasm_bindgen_test::*;
use js_sys::*;
#[wasm_bindgen(module = "tests/wasm/Generator.js")]
extern {
fn one_two_generator() -> Generator;
fn dummy_generator() -> Generator;
fn broken_generator() -> Generator;
type GeneratorResult;
#[wasm_bindgen(method, getter, structural)]
fn value(this: &GeneratorResult) -> JsValue;
#[wasm_bindgen(method, getter, structural)]
fn done(this: &GeneratorResult) -> bool;
}
#[wasm_bindgen_test]
fn return_() {
let gen = one_two_generator();
gen.next(&JsValue::undefined()).unwrap();
let res = GeneratorResult::from(gen.return_(&42.into()));
assert_eq!(res.value(), 42);
assert!(res.done());
let next = GeneratorResult::from(gen.next(&JsValue::undefined()).unwrap());
assert!(next.value().is_undefined());
assert!(next.done());
}
#[wasm_bindgen_test]
fn next() {
let gen = dummy_generator();
let result = GeneratorResult::from(gen.next(&JsValue::undefined()).unwrap());
assert!(!result.done());
assert_eq!(result.value(), "2 * 2");
let result = GeneratorResult::from(gen.next(&4.into()).unwrap());
assert!(result.done());
assert_eq!(result.value(), true);
assert!(broken_generator().next(&3.into()).is_err());
}
#[wasm_bindgen_test]
fn throw() {
let gen = one_two_generator();
gen.next(&JsValue::undefined()).unwrap();
assert!(gen.throw(&Error::new("something went wrong")).is_err());
let next = GeneratorResult::from(gen.next(&JsValue::undefined()).unwrap());
assert!(next.value().is_undefined());
assert!(next.done());
}