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denoland-deno/ext/node/polyfills/testing.ts

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// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
import { primordials } from "ext:core/mod.js";
const { PromisePrototypeThen } = primordials;
import { notImplemented, warnNotImplemented } from "ext:deno_node/_utils.ts";
export function run() {
notImplemented("test.run");
}
function noop() {}
class NodeTestContext {
#denoContext: Deno.TestContext;
constructor(t: Deno.TestContext) {
this.#denoContext = t;
}
get signal() {
notImplemented("test.TestContext.signal");
return null;
}
get name() {
notImplemented("test.TestContext.name");
return null;
}
diagnostic(message) {
// deno-lint-ignore no-console
console.log("DIAGNOSTIC:", message);
}
get mock() {
notImplemented("test.TestContext.mock");
return null;
}
runOnly() {
notImplemented("test.TestContext.runOnly");
return null;
}
skip() {
warnNotImplemented("test.TestContext.skip");
return null;
}
todo() {
warnNotImplemented("test.TestContext.todo");
return null;
}
test(name, options, fn) {
const prepared = prepareOptions(name, options, fn, {});
return PromisePrototypeThen(
this.#denoContext.step({
name: prepared.name,
fn: async (denoTestContext) => {
const newNodeTextContext = new NodeTestContext(denoTestContext);
await prepared.fn(newNodeTextContext);
},
ignore: prepared.options.todo || prepared.options.skip,
sanitizeExit: false,
sanitizeOps: false,
sanitizeResources: false,
}),
() => undefined,
);
}
before(_fn, _options) {
notImplemented("test.TestContext.before");
}
after(_fn, _options) {
notImplemented("test.TestContext.after");
}
beforeEach(_fn, _options) {
notImplemented("test.TestContext.beforeEach");
}
afterEach(_fn, _options) {
notImplemented("test.TestContext.afterEach");
}
}
function prepareOptions(name, options, fn, overrides) {
if (typeof name === "function") {
fn = name;
} else if (name !== null && typeof name === "object") {
fn = options;
options = name;
} else if (typeof options === "function") {
fn = options;
}
if (options === null || typeof options !== "object") {
options = {};
}
const finalOptions = { ...options, ...overrides };
// TODO(bartlomieju): these options are currently not handled
// const { concurrency, timeout, signal } = finalOptions;
if (typeof fn !== "function") {
fn = noop;
}
if (typeof name !== "string" || name === "") {
name = fn.name || "<anonymous>";
}
return { fn, options: finalOptions, name };
}
function wrapTestFn(fn, resolve) {
return async function (t) {
const nodeTestContext = new NodeTestContext(t);
try {
await fn(nodeTestContext);
} finally {
resolve();
}
};
}
function prepareDenoTest(name, options, fn, overrides) {
const prepared = prepareOptions(name, options, fn, overrides);
// TODO(iuioiua): Update once there's a primordial for `Promise.withResolvers()`.
// deno-lint-ignore prefer-primordials
const { promise, resolve } = Promise.withResolvers();
const denoTestOptions = {
name: prepared.name,
fn: wrapTestFn(prepared.fn, resolve),
only: prepared.options.only,
ignore: prepared.options.todo || prepared.options.skip,
sanitizeExit: false,
sanitizeOps: false,
sanitizeResources: false,
};
Deno.test(denoTestOptions);
return promise;
}
export function test(name, options, fn) {
return prepareDenoTest(name, options, fn, {});
}
test.skip = function skip(name, options, fn) {
return prepareDenoTest(name, options, fn, { skip: true });
};
test.todo = function todo(name, options, fn) {
return prepareDenoTest(name, options, fn, { todo: true });
};
test.only = function only(name, options, fn) {
return prepareDenoTest(name, options, fn, { only: true });
};
export function describe() {
notImplemented("test.describe");
}
export function it() {
notImplemented("test.it");
}
export function before() {
notImplemented("test.before");
}
export function after() {
notImplemented("test.after");
}
export function beforeEach() {
notImplemented("test.beforeEach");
}
export function afterEach() {
notImplemented("test.afterEach");
}
export const mock = {
fn: () => {
notImplemented("test.mock.fn");
},
getter: () => {
notImplemented("test.mock.getter");
},
method: () => {
notImplemented("test.mock.method");
},
reset: () => {
notImplemented("test.mock.reset");
},
restoreAll: () => {
notImplemented("test.mock.restoreAll");
},
setter: () => {
notImplemented("test.mock.setter");
},
timers: {
enable: () => {
notImplemented("test.mock.timers.enable");
},
reset: () => {
notImplemented("test.mock.timers.reset");
},
tick: () => {
notImplemented("test.mock.timers.tick");
},
runAll: () => {
notImplemented("test.mock.timers.runAll");
},
},
};
export default test;