mirror of
https://github.com/rustwasm/wasm-bindgen.git
synced 2024-12-17 14:31:45 +03:00
93 lines
2.5 KiB
Rust
93 lines
2.5 KiB
Rust
use js_sys::*;
|
|
use wasm_bindgen::prelude::*;
|
|
use wasm_bindgen::JsCast;
|
|
use wasm_bindgen_test::*;
|
|
|
|
#[wasm_bindgen_test]
|
|
fn parse_array() {
|
|
let js_array = JSON::parse("[1, 2, 3]").unwrap();;
|
|
assert!(Array::is_array(&js_array));
|
|
|
|
let array = Array::from(&js_array);
|
|
assert_eq!(array.length(), 3);
|
|
assert_eq!(array.pop(), 3);
|
|
assert_eq!(array.pop(), 2);
|
|
assert_eq!(array.pop(), 1);
|
|
}
|
|
|
|
#[wasm_bindgen_test]
|
|
fn parse_object() {
|
|
let js_object = JSON::parse("{\"x\": 5, \"y\": true, \"z\": [\"foo\", \"bar\"]}").unwrap();
|
|
assert!(js_object.is_object());
|
|
|
|
let obj = Object::from(js_object);
|
|
let keys = Object::keys(&obj);
|
|
assert_eq!(keys.length(), 3);
|
|
assert_eq!(keys.pop().as_string().unwrap(), "z");
|
|
assert_eq!(keys.pop().as_string().unwrap(), "y");
|
|
assert_eq!(keys.pop().as_string().unwrap(), "x");
|
|
|
|
let values = Object::values(&obj);
|
|
assert_eq!(values.length(), 3);
|
|
|
|
let z = values.pop();
|
|
assert!(Array::is_array(&z));
|
|
let z_array = Array::from(&z);
|
|
assert_eq!(z_array.length(), 2);
|
|
|
|
let y = values.pop();
|
|
assert_eq!(y.as_bool(), Some(true));
|
|
|
|
let x = values.pop();
|
|
assert!(Number::is_integer(&x));
|
|
let x_num = Number::new(&x);
|
|
assert_eq!(x_num.value_of(), 5.0);
|
|
}
|
|
|
|
#[wasm_bindgen_test]
|
|
fn parse_error() {
|
|
let js_object = JSON::parse("invalid json");
|
|
assert!(js_object.is_err());
|
|
let err = js_object.unwrap_err();
|
|
assert!(err.is_instance_of::<Error>());
|
|
}
|
|
|
|
#[wasm_bindgen_test]
|
|
fn stringify() {
|
|
let arr = Array::new();
|
|
arr.push(&JsValue::from(1));
|
|
arr.push(&JsValue::from(true));
|
|
arr.push(&JsValue::from("hello"));
|
|
|
|
let str = JSON::stringify(&JsValue::from(arr)).unwrap();
|
|
let rust_str: String = From::from(str);
|
|
assert_eq!(rust_str, "[1,true,\"hello\"]");
|
|
}
|
|
|
|
#[wasm_bindgen_test]
|
|
fn stringify_error() {
|
|
let func = Function::new_no_args("throw new Error(\"rust really rocks\")");
|
|
let obj = Object::new();
|
|
Reflect::set(obj.as_ref(), &JsValue::from("toJSON"), func.as_ref()).unwrap();
|
|
|
|
let result = JSON::stringify(&JsValue::from(obj));
|
|
assert!(result.is_err());
|
|
let err_obj = result.unwrap_err();
|
|
assert!(err_obj.is_instance_of::<Error>());
|
|
let err: &Error = err_obj.dyn_ref().unwrap();
|
|
let err_msg: String = From::from(err.message());
|
|
assert!(err_msg.contains("rust really rocks"));
|
|
}
|
|
|
|
#[wasm_bindgen_test]
|
|
fn json_extends() {
|
|
#[wasm_bindgen]
|
|
extern "C" {
|
|
#[wasm_bindgen(js_name = JSON)]
|
|
static json: JSON;
|
|
}
|
|
|
|
assert!(json.is_instance_of::<Object>());
|
|
let _: &Object = json.as_ref();
|
|
}
|