1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
|
// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
// Requires to be run with `--allow-net` flag
// FIXME(bartlomieju): this file is an integration test only because
// workers are leaking ops at the moment - `worker.terminate()` is not
// yet implemented. Once it gets implemented this file should be
// again moved to `cli/js/` as an unit test file.
import { assert, assertEquals } from "../../std/testing/asserts.ts";
export interface ResolvableMethods<T> {
resolve: (value?: T | PromiseLike<T>) => void;
// eslint-disable-next-line @typescript-eslint/no-explicit-any
reject: (reason?: any) => void;
}
export type Resolvable<T> = Promise<T> & ResolvableMethods<T>;
export function createResolvable<T>(): Resolvable<T> {
let methods: ResolvableMethods<T>;
const promise = new Promise<T>((resolve, reject): void => {
methods = { resolve, reject };
});
// TypeScript doesn't know that the Promise callback occurs synchronously
// therefore use of not null assertion (`!`)
return Object.assign(promise, methods!) as Resolvable<T>;
}
Deno.test({
name: "workersBasic",
// FIXME(bartlomieju):
disableOpSanitizer: true,
fn: async function (): Promise<void> {
const promise = createResolvable();
const jsWorker = new Worker("../tests/subdir/test_worker.js", {
type: "module",
name: "jsWorker",
});
const tsWorker = new Worker("../tests/subdir/test_worker.ts", {
type: "module",
name: "tsWorker",
});
tsWorker.onmessage = (e): void => {
assertEquals(e.data, "Hello World");
promise.resolve();
};
jsWorker.onmessage = (e): void => {
assertEquals(e.data, "Hello World");
tsWorker.postMessage("Hello World");
};
jsWorker.onerror = (e: Event): void => {
e.preventDefault();
jsWorker.postMessage("Hello World");
};
jsWorker.postMessage("Hello World");
await promise;
},
});
Deno.test({
name: "nestedWorker",
// FIXME(bartlomieju):
disableOpSanitizer: true,
fn: async function (): Promise<void> {
const promise = createResolvable();
const nestedWorker = new Worker("../tests/subdir/nested_worker.js", {
type: "module",
name: "nested",
});
nestedWorker.onmessage = (e): void => {
assert(e.data.type !== "error");
promise.resolve();
};
nestedWorker.postMessage("Hello World");
await promise;
},
});
Deno.test({
name: "workerThrowsWhenExecuting",
// FIXME(bartlomieju):
disableOpSanitizer: true,
fn: async function (): Promise<void> {
const promise = createResolvable();
const throwingWorker = new Worker("../tests/subdir/throwing_worker.js", {
type: "module",
});
// eslint-disable-next-line @typescript-eslint/no-explicit-any
throwingWorker.onerror = (e: any): void => {
e.preventDefault();
assert(/Uncaught Error: Thrown error/.test(e.message));
promise.resolve();
};
await promise;
},
});
Deno.test({
name: "workerCanUseFetch",
// FIXME(bartlomieju):
disableOpSanitizer: true,
fn: async function (): Promise<void> {
const promise = createResolvable();
const fetchingWorker = new Worker("../tests/subdir/fetching_worker.js", {
type: "module",
});
// eslint-disable-next-line @typescript-eslint/no-explicit-any
fetchingWorker.onerror = (e: any): void => {
e.preventDefault();
promise.reject(e.message);
};
// Defer promise.resolve() to allow worker to shut down
fetchingWorker.onmessage = (e): void => {
assert(e.data === "Done!");
promise.resolve();
};
await promise;
},
});
|
