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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_eq!(x.as_f64().unwrap(), 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 str1: String = JSON::stringify(&JsValue::from(arr)).unwrap().into();
assert_eq!(str1, "[1,true,\"hello\"]");
let obj = Object::new();
Reflect::set(obj.as_ref(), &JsValue::from("foo"), &JsValue::from("bar")).unwrap();
let str2: String = JSON::stringify(&JsValue::from(obj)).unwrap().into();
assert_eq!(str2, "{\"foo\":\"bar\"}");
}
#[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 stringify_with_replacer() {
let obj = Object::new();
Reflect::set(obj.as_ref(), &JsValue::from("foo"), &JsValue::from("bar")).unwrap();
Reflect::set(
obj.as_ref(),
&JsValue::from("hello"),
&JsValue::from("world"),
)
.unwrap();
let replacer_array = Array::new();
replacer_array.push(&JsValue::from("hello"));
let output1: String =
JSON::stringify_with_replacer(&JsValue::from(obj.clone()), &JsValue::from(replacer_array))
.unwrap()
.into();
assert_eq!(output1, "{\"hello\":\"world\"}");
let replacer_func =
Function::new_with_args("key, value", "return key === 'hello' ? undefined : value");
let output2: String =
JSON::stringify_with_replacer(&JsValue::from(obj), &JsValue::from(replacer_func))
.unwrap()
.into();
assert_eq!(output2, "{\"foo\":\"bar\"}");
}
#[wasm_bindgen_test]
fn stringify_with_replacer_error() {
let arr = Array::new();
arr.push(&JsValue::from(1));
arr.push(&JsValue::from(true));
arr.push(&JsValue::from("hello"));
let replacer = Function::new_no_args("throw new Error(\"rust really rocks\")");
let result = JSON::stringify_with_replacer(&JsValue::from(arr), &JsValue::from(replacer));
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 stringify_with_replacer_and_space() {
let arr = Array::new();
arr.push(&JsValue::from(1));
arr.push(&JsValue::from(true));
arr.push(&JsValue::from("hello"));
let output1: String = JSON::stringify_with_replacer_and_space(
&JsValue::from(arr),
&JsValue::NULL,
&JsValue::from(4),
)
.unwrap()
.into();
assert_eq!(output1, "[\n 1,\n true,\n \"hello\"\n]");
let obj = Object::new();
Reflect::set(obj.as_ref(), &JsValue::from("foo"), &JsValue::from("bar")).unwrap();
Reflect::set(
obj.as_ref(),
&JsValue::from("hello"),
&JsValue::from("world"),
)
.unwrap();
let replacer_array = Array::new();
replacer_array.push(&JsValue::from("hello"));
let output2: String = JSON::stringify_with_replacer_and_space(
&JsValue::from(obj.clone()),
&JsValue::from(replacer_array),
&JsValue::from(4),
)
.unwrap()
.into();
assert_eq!(output2, "{\n \"hello\": \"world\"\n}");
let replacer_func =
Function::new_with_args("key, value", "return key === 'hello' ? undefined : value");
let output3: String = JSON::stringify_with_replacer_and_space(
&JsValue::from(obj),
&JsValue::from(replacer_func),
&JsValue::from(4),
)
.unwrap()
.into();
assert_eq!(output3, "{\n \"foo\": \"bar\"\n}");
}
#[wasm_bindgen_test]
fn stringify_with_replacer_and_space_error() {
let arr = Array::new();
arr.push(&JsValue::from(1));
arr.push(&JsValue::from(true));
arr.push(&JsValue::from("hello"));
let replacer = Function::new_no_args("throw new Error(\"rust really rocks\")");
let result = JSON::stringify_with_replacer_and_space(
&JsValue::from(arr),
&JsValue::from(replacer),
&JsValue::from(4),
);
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"));
}
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