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use js_sys::*;
use wasm_bindgen::prelude::*;
use wasm_bindgen::JsCast;
use wasm_bindgen_test::*;
#[wasm_bindgen(module = "tests/wasm/Generator.js")]
extern "C" {
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());
}
#[wasm_bindgen_test]
fn generator_inheritance() {
let gen = dummy_generator();
assert!(gen.is_instance_of::<Object>());
}
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