#![allow(non_snake_case)] use project; #[test] fn slice() { project() .file("src/lib.rs", r#" #![feature(proc_macro, wasm_custom_section)] extern crate wasm_bindgen; use wasm_bindgen::prelude::*; use wasm_bindgen::js; #[wasm_bindgen] pub fn create_slice(this: &js::JsString, start: u32, end: u32) -> js::JsString { this.slice(start, end) } "#) .file("test.ts", r#" import * as assert from "assert"; import * as wasm from "./out"; export function test() { let characters = "acxn18"; let subset = wasm.create_slice(characters, 1, 3); assert.equal(subset, "cx"); } "#) .test() } #[test] fn substr() { project() .file("src/lib.rs", r#" #![feature(proc_macro, wasm_custom_section)] extern crate wasm_bindgen; use wasm_bindgen::prelude::*; use wasm_bindgen::js; #[wasm_bindgen] pub fn create_substr(this: &js::JsString, start: i32, length: i32) -> js::JsString { this.substr(start, length) } "#) .file("test.ts", r#" import * as assert from "assert"; import * as wasm from "./out"; export function test() { let aString = "Mozilla"; assert.equal(wasm.create_substr(aString, 0, 1), "M"); assert.equal(wasm.create_substr(aString, 1, 0), ""); assert.equal(wasm.create_substr(aString, -1, 1), "a"); assert.equal(wasm.create_substr(aString, 1, -1), ""); // TODO: Uncomment and test these assertions, once we have support for optional parameters // assert.equal(wasm.create_substr(aString, -3), "lla"); // assert.equal(wasm.create_substr(aString, 1), "ozilla"); assert.equal(wasm.create_substr(aString, -20, 2), "Mo"); assert.equal(wasm.create_substr(aString, 20, 2), ""); } "#) .test() }