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PR-URL: #49545 Reviewed-By: Antoine du Hamel <[email protected]> Reviewed-By: Jacob Smith <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,149 @@ | ||
| import { spawnPromisified } from '../common/index.mjs'; | ||
| import * as fixtures from '../common/fixtures.mjs'; | ||
| import assert from 'node:assert'; | ||
| import os from 'node:os'; | ||
| import { execPath } from 'node:process'; | ||
| import { describe, it } from 'node:test'; | ||
|
|
||
| describe('globalPreload hook', () => { | ||
| it('should not emit deprecation warning when initialize is supplied', async () => { | ||
| const { stderr } = await spawnPromisified(execPath, [ | ||
| '--experimental-loader', | ||
| 'data:text/javascript,export function globalPreload(){}export function initialize(){}', | ||
| fixtures.path('empty.js'), | ||
| ]); | ||
|
|
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| assert.doesNotMatch(stderr, /`globalPreload` is an experimental feature/); | ||
| }); | ||
|
|
||
| it('should handle globalPreload returning undefined', async () => { | ||
| const { code, signal, stdout, stderr } = await spawnPromisified(execPath, [ | ||
| '--no-warnings', | ||
| '--experimental-loader', | ||
| 'data:text/javascript,export function globalPreload(){}', | ||
| fixtures.path('empty.js'), | ||
| ]); | ||
|
|
||
| assert.strictEqual(stderr, ''); | ||
| assert.strictEqual(stdout, ''); | ||
| assert.strictEqual(code, 0); | ||
| assert.strictEqual(signal, null); | ||
| }); | ||
|
|
||
| it('should handle loading node:test', async () => { | ||
| const { code, signal, stdout, stderr } = await spawnPromisified(execPath, [ | ||
| '--no-warnings', | ||
| '--experimental-loader', | ||
| 'data:text/javascript,export function globalPreload(){return `getBuiltin("node:test")()`}', | ||
| fixtures.path('empty.js'), | ||
| ]); | ||
|
|
||
| assert.strictEqual(stderr, ''); | ||
| assert.match(stdout, /\n# pass 1\r?\n/); | ||
| assert.strictEqual(code, 0); | ||
| assert.strictEqual(signal, null); | ||
| }); | ||
|
|
||
| it('should handle loading node:os with node: prefix', async () => { | ||
| const { code, signal, stdout, stderr } = await spawnPromisified(execPath, [ | ||
| '--no-warnings', | ||
| '--experimental-loader', | ||
| 'data:text/javascript,export function globalPreload(){return `console.log(getBuiltin("node:os").arch())`}', | ||
| fixtures.path('empty.js'), | ||
| ]); | ||
|
|
||
| assert.strictEqual(stderr, ''); | ||
| assert.strictEqual(stdout.trim(), os.arch()); | ||
| assert.strictEqual(code, 0); | ||
| assert.strictEqual(signal, null); | ||
| }); | ||
|
|
||
| // `os` is used here because it's simple and not mocked (the builtin module otherwise doesn't matter). | ||
| it('should handle loading builtin module without node: prefix', async () => { | ||
| const { code, signal, stdout, stderr } = await spawnPromisified(execPath, [ | ||
| '--no-warnings', | ||
| '--experimental-loader', | ||
| 'data:text/javascript,export function globalPreload(){return `console.log(getBuiltin("os").arch())`}', | ||
| fixtures.path('empty.js'), | ||
| ]); | ||
|
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| assert.strictEqual(stderr, ''); | ||
| assert.strictEqual(stdout.trim(), os.arch()); | ||
| assert.strictEqual(code, 0); | ||
| assert.strictEqual(signal, null); | ||
| }); | ||
|
|
||
| it('should throw when loading node:test without node: prefix', async () => { | ||
| const { code, signal, stdout, stderr } = await spawnPromisified(execPath, [ | ||
| '--no-warnings', | ||
| '--experimental-loader', | ||
| 'data:text/javascript,export function globalPreload(){return `getBuiltin("test")()`}', | ||
| fixtures.path('empty.js'), | ||
| ]); | ||
|
|
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| assert.match(stderr, /ERR_UNKNOWN_BUILTIN_MODULE/); | ||
| assert.strictEqual(stdout, ''); | ||
| assert.strictEqual(code, 1); | ||
| assert.strictEqual(signal, null); | ||
| }); | ||
|
|
||
| it('should register globals set from globalPreload', async () => { | ||
| const { code, signal, stdout, stderr } = await spawnPromisified(execPath, [ | ||
| '--no-warnings', | ||
| '--experimental-loader', | ||
| 'data:text/javascript,export function globalPreload(){return "this.myGlobal=4"}', | ||
| '--print', 'myGlobal', | ||
| ]); | ||
|
|
||
| assert.strictEqual(stderr, ''); | ||
| assert.strictEqual(stdout.trim(), '4'); | ||
| assert.strictEqual(code, 0); | ||
| assert.strictEqual(signal, null); | ||
| }); | ||
|
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||
| it('should log console.log calls returned from globalPreload', async () => { | ||
| const { code, signal, stdout, stderr } = await spawnPromisified(execPath, [ | ||
| '--no-warnings', | ||
| '--experimental-loader', | ||
| 'data:text/javascript,export function globalPreload(){return `console.log("Hello from globalPreload")`}', | ||
| fixtures.path('empty.js'), | ||
| ]); | ||
|
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| assert.strictEqual(stderr, ''); | ||
| assert.strictEqual(stdout.trim(), 'Hello from globalPreload'); | ||
| assert.strictEqual(code, 0); | ||
| assert.strictEqual(signal, null); | ||
| }); | ||
|
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||
| it('should crash if globalPreload returns code that throws', async () => { | ||
| const { code, signal, stdout, stderr } = await spawnPromisified(execPath, [ | ||
| '--no-warnings', | ||
| '--experimental-loader', | ||
| 'data:text/javascript,export function globalPreload(){return `throw new Error("error from globalPreload")`}', | ||
| fixtures.path('empty.js'), | ||
| ]); | ||
|
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| assert.match(stderr, /error from globalPreload/); | ||
| assert.strictEqual(stdout, ''); | ||
| assert.strictEqual(code, 1); | ||
| assert.strictEqual(signal, null); | ||
| }); | ||
|
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| it('should have a `this` value that is not bound to the loader instance', async () => { | ||
| const { code, signal, stdout, stderr } = await spawnPromisified(execPath, [ | ||
| '--no-warnings', | ||
| '--experimental-loader', | ||
| `data:text/javascript,export ${function globalPreload() { | ||
| if (this != null) { | ||
| throw new Error('hook function must not be bound to ESMLoader instance'); | ||
| } | ||
| }}`, | ||
| fixtures.path('empty.js'), | ||
| ]); | ||
|
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| assert.strictEqual(stderr, ''); | ||
| assert.strictEqual(stdout, ''); | ||
| assert.strictEqual(code, 0); | ||
| assert.strictEqual(signal, null); | ||
| }); | ||
| }); |
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21 changes: 14 additions & 7 deletions
21
test/fixtures/es-module-loaders/loader-this-value-inside-hook-functions.mjs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,14 +1,21 @@ | ||
| export function initialize() { | ||
| if (this != null) { | ||
| throw new Error('hook function must not be bound to loader instance'); | ||
| } | ||
| } | ||
|
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| export function resolve(url, _, next) { | ||
| if (this != null) throw new Error('hook function must not be bound to ESMLoader instance'); | ||
| if (this != null) { | ||
| throw new Error('hook function must not be bound to loader instance'); | ||
| } | ||
|
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| return next(url); | ||
| } | ||
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| export function load(url, _, next) { | ||
| if (this != null) throw new Error('hook function must not be bound to ESMLoader instance'); | ||
| return next(url); | ||
| } | ||
| if (this != null) { | ||
| throw new Error('hook function must not be bound to loader instance'); | ||
| } | ||
|
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| export function globalPreload() { | ||
| if (this != null) throw new Error('hook function must not be bound to ESMLoader instance'); | ||
| return ""; | ||
| return next(url); | ||
| } |