wasm-bindgen/tests/all/js_globals/Generator.rs
Alex Crichton efa4a2b8fa
Speed up Travis by running Webpack in fewer tests (#381)
* Reorganize Travis configuration

* Add a `JOB` env var descriptor to all matrix entries. Not used anywhere but is
  useful when viewing the whole build on Travis's web interface.
* Reorganize where builds are located, moving slow builds first and fast ones
  last.
* Change checking the CLI builds from `cargo build` to `cargo check`
* Use YAML references to reduce some duplication

* Print some more timing statistics for each test

* Extract `Project` helper in tests to a module

This'll help make it a bit more extensible over time. At the same time the
methods are also slightly reorganized to read more clearly from top to bottom.

* Migrate all tests away from Webpack

Wepback can take a significant amount of time to execute and when it's
multiplied by hundreds of tests that adds up really quickly! After investigating
Node's `--experimental-modules` option it looks like it's suitable for our use
so this switches all tests to using JS files (moving away from TypeScript as
well) with `--experimental-modules` with Node.

Tests will be selectively re-enabled with webpack and node.js specific output
(that doesn't require `--experimental-modules`), coming in later commits.

* Restore the node test for node.js output

Ensures it's workable as-is

* Only generate typescript with webpack

* Only read wasm files for webpack

* Skip package.json/node_modules for now

* Only generate webpack config if needed

* Start a dedicated test module for typescript

Will hopefully verify the generated Typescript compiles OK.

* Remove unneeded `node` method

* Fixup some rebase conflicts

* Don't run asmjs example on travis

* Fixup generator tests

* Attempt to fix windows

* Comment windows fix

* More test fixes

* More exclusions

* More test fixes

* Relax eslint regex

Catch mjs modules as well

* Fix eslint

* Speed up travis on examples slightly
2018-07-04 22:37:09 -05:00

147 lines
4.0 KiB
Rust

#![allow(non_snake_case)]
use project;
#[test]
fn return_() {
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 gen_return(this: &js::Generator, value: &JsValue) -> JsValue {
this.return_(value)
}
"#,
)
.file(
"test.js",
r#"
import * as assert from "assert";
import * as wasm from "./out";
export function test() {
function* generator() {
yield 1;
yield 2;
}
const gen = generator();
gen.next();
const res = wasm.gen_return(gen, 42);
assert.deepEqual(res, { value: 42, done: true });
const next = gen.next();
assert.deepEqual(next, { value: undefined, done: true });
}
"#,
)
.test()
}
#[test]
fn next() {
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 next(this: &js::Generator, value: &JsValue) -> JsValue {
this.next(value)
.ok()
.expect("generator throws an error")
}
#[wasm_bindgen]
pub fn next_throws_error(this: &js::Generator, value: &JsValue) -> bool {
this.next(value).is_err()
}
"#,
)
.file(
"test.js",
r#"
import * as assert from "assert";
import * as wasm from "./out";
export function test() {
function* generator() {
const reply = yield '2 * 2';
return reply === 4;
}
const gen = generator();
const q = wasm.next(gen, undefined);
assert.deepEqual(q, { value: '2 * 2', done: false });
const a = wasm.next(gen, 4);
assert.deepEqual(a, { value: true, done: true });
function* brokenGenerator() {
throw new Error('Something went wrong');
yield 1;
}
assert.ok(wasm.next_throws_error(brokenGenerator(), undefined));
}
"#,
)
.test()
}
#[test]
fn throw() {
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 gen_throws_error(this: &js::Generator, error: &js::Error) -> bool {
this.throw(error).is_err()
}
"#,
)
.file(
"test.js",
r#"
import * as assert from "assert";
import * as wasm from "./out";
export function test() {
function* generator() {
yield 1;
yield 2;
}
const gen = generator();
gen.next();
assert.ok(wasm.gen_throws_error(gen, new Error('Something went wrong')));
assert.deepEqual(gen.next(), { value: undefined, done: true });
}
"#,
)
.test()
}