From 1c020ccd6472215148bd94c1a48c5e6b79d59b86 Mon Sep 17 00:00:00 2001 From: Antoine du Hamel Date: Tue, 15 Aug 2023 11:32:38 +0200 Subject: [PATCH] test: refactor `test-esm-loader-hooks` for easier debugging - Always check stderr before stdout as the former would contain error information. - Always match the full stdout to avoid surprises. - Use `deepStrictEqual` when appropriate to get more informative test failures. - Remove leading slashes from relative paths/URLs to not confuse them with absolute paths. - Remove unnecessary `--no-warnings` flag. PR-URL: https://github.com/nodejs/node/pull/49131 Reviewed-By: Chemi Atlow Reviewed-By: Geoffrey Booth --- test/es-module/test-esm-loader-hooks.mjs | 60 ++++++++++-------------- 1 file changed, 25 insertions(+), 35 deletions(-) diff --git a/test/es-module/test-esm-loader-hooks.mjs b/test/es-module/test-esm-loader-hooks.mjs index 633e4d07b3744c..8d7d885164ae48 100644 --- a/test/es-module/test-esm-loader-hooks.mjs +++ b/test/es-module/test-esm-loader-hooks.mjs @@ -10,8 +10,8 @@ describe('Loader hooks', { concurrency: true }, () => { const { code, signal, stdout, stderr } = await spawnPromisified(execPath, [ '--no-warnings', '--experimental-loader', - fixtures.fileURL('/es-module-loaders/hooks-input.mjs'), - fixtures.path('/es-modules/json-modules.mjs'), + fixtures.fileURL('es-module-loaders/hooks-input.mjs'), + fixtures.path('es-modules/json-modules.mjs'), ]); assert.strictEqual(stderr, ''); @@ -23,6 +23,8 @@ describe('Loader hooks', { concurrency: true }, () => { assert.match(lines[1], /{"source":{"type":"Buffer","data":\[.*\]},"format":"module","shortCircuit":true}/); assert.match(lines[2], /{"url":"file:\/\/\/.*\/experimental\.json","format":"test","shortCircuit":true}/); assert.match(lines[3], /{"source":{"type":"Buffer","data":\[.*\]},"format":"json","shortCircuit":true}/); + assert.strictEqual(lines[4], ''); + assert.strictEqual(lines.length, 5); }); it('are called with all expected arguments using register function', async () => { @@ -32,8 +34,8 @@ describe('Loader hooks', { concurrency: true }, () => { '--input-type=module', '--eval', "import { register } from 'node:module';" + - `register(${JSON.stringify(fixtures.fileURL('/es-module-loaders/hooks-input.mjs'))});` + - `await import(${JSON.stringify(fixtures.fileURL('/es-modules/json-modules.mjs'))});`, + `register(${JSON.stringify(fixtures.fileURL('es-module-loaders/hooks-input.mjs'))});` + + `await import(${JSON.stringify(fixtures.fileURL('es-modules/json-modules.mjs'))});`, ]); assert.strictEqual(stderr, ''); @@ -45,6 +47,8 @@ describe('Loader hooks', { concurrency: true }, () => { assert.match(lines[1], /{"source":{"type":"Buffer","data":\[.*\]},"format":"module","shortCircuit":true}/); assert.match(lines[2], /{"url":"file:\/\/\/.*\/experimental\.json","format":"test","shortCircuit":true}/); assert.match(lines[3], /{"source":{"type":"Buffer","data":\[.*\]},"format":"json","shortCircuit":true}/); + assert.strictEqual(lines[4], ''); + assert.strictEqual(lines.length, 5); }); describe('should handle never-settling hooks in ESM files', { concurrency: true }, () => { @@ -340,7 +344,6 @@ describe('Loader hooks', { concurrency: true }, () => { it('should handle symbol', async () => { const { code, signal, stdout } = await spawnPromisified(execPath, [ - '--no-warnings', '--experimental-loader', 'data:text/javascript,throw Symbol("symbol descriptor")', fixtures.path('empty.js'), @@ -524,19 +527,14 @@ describe('Loader hooks', { concurrency: true }, () => { const { code, signal, stdout, stderr } = await spawnPromisified(execPath, [ '--no-warnings', '--experimental-loader', - fixtures.fileURL('/es-module-loaders/hooks-initialize.mjs'), + fixtures.fileURL('es-module-loaders/hooks-initialize.mjs'), '--input-type=module', '--eval', 'import os from "node:os";', ]); - const lines = stdout.trim().split('\n'); - - assert.strictEqual(lines.length, 1); - assert.strictEqual(lines[0], 'hooks initialize 1'); - assert.strictEqual(stderr, ''); - + assert.deepStrictEqual(stdout.split('\n'), ['hooks initialize 1', '']); assert.strictEqual(code, 0); assert.strictEqual(signal, null); }); @@ -567,7 +565,10 @@ describe('Loader hooks', { concurrency: true }, () => { ]); assert.strictEqual(stderr, ''); - assert.deepStrictEqual(stdout.split('\n'), ['register ok', 'message initialize', 'message resolve node:os', '']); + assert.deepStrictEqual(stdout.split('\n'), [ 'register ok', + 'message initialize', + 'message resolve node:os', + '' ]); assert.strictEqual(code, 0); assert.strictEqual(signal, null); @@ -605,18 +606,14 @@ describe('Loader hooks', { concurrency: true }, () => { const { code, signal, stdout, stderr } = await spawnPromisified(execPath, [ '--no-warnings', '--require', - fixtures.path('/es-module-loaders/register-loader.cjs'), + fixtures.path('es-module-loaders/register-loader.cjs'), '--input-type=module', '--eval', 'import "node:os";', ]); - const lines = stdout.split('\n'); - - assert.strictEqual(lines[0], 'resolve passthru'); - assert.strictEqual(stderr, ''); - + assert.deepStrictEqual(stdout.split('\n'), ['resolve passthru', 'resolve passthru', '']); assert.strictEqual(code, 0); assert.strictEqual(signal, null); }); @@ -625,7 +622,7 @@ describe('Loader hooks', { concurrency: true }, () => { const { code, signal, stdout, stderr } = await spawnPromisified(execPath, [ '--no-warnings', '--import', - fixtures.fileURL('/es-module-loaders/register-loader.mjs'), + fixtures.fileURL('es-module-loaders/register-loader.mjs'), '--input-type=module', '--eval', ` @@ -633,12 +630,8 @@ describe('Loader hooks', { concurrency: true }, () => { `, ]); - const lines = stdout.split('\n'); - - assert.strictEqual(lines[0], 'resolve passthru'); - assert.strictEqual(stderr, ''); - + assert.deepStrictEqual(stdout.split('\n'), ['resolve passthru', '']); assert.strictEqual(code, 0); assert.strictEqual(signal, null); }); @@ -651,25 +644,22 @@ describe('Loader hooks', { concurrency: true }, () => { ` import {register} from 'node:module'; console.log('result', register( - ${JSON.stringify(fixtures.fileURL('/es-module-loaders/hooks-initialize.mjs'))} + ${JSON.stringify(fixtures.fileURL('es-module-loaders/hooks-initialize.mjs'))} )); console.log('result', register( - ${JSON.stringify(fixtures.fileURL('/es-module-loaders/hooks-initialize.mjs'))} + ${JSON.stringify(fixtures.fileURL('es-module-loaders/hooks-initialize.mjs'))} )); await import('node:os'); `, ]); - const lines = stdout.split('\n'); - - assert.strictEqual(lines[0], 'result 1'); - assert.strictEqual(lines[1], 'result 2'); - assert.strictEqual(lines[2], 'hooks initialize 1'); - assert.strictEqual(lines[3], 'hooks initialize 2'); - assert.strictEqual(stderr, ''); - + assert.deepStrictEqual(stdout.split('\n'), [ 'result 1', + 'result 2', + 'hooks initialize 1', + 'hooks initialize 2', + '' ]); assert.strictEqual(code, 0); assert.strictEqual(signal, null); });