test: refactor some esm tests

PR-URL: #55472
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Chemi Atlow <chemi@atlow.co.il>

Author: aduh95

test/es-module/test-esm-import-meta-resolve.mjs

@@ -1,22 +1,21 @@
 // Flags: --experimental-import-meta-resolve
 import { spawnPromisified } from '../common/index.mjs';
+import { fileURL as fixturesFileURL } from '../common/fixtures.mjs';
 import assert from 'assert';
 import { spawn } from 'child_process';
 import { execPath } from 'process';
 
-const dirname = import.meta.url.slice(0, import.meta.url.lastIndexOf('/') + 1);
-const fixtures = dirname.slice(0, dirname.lastIndexOf('/', dirname.length - 2) + 1) + 'fixtures/';
+const fixtures = `${fixturesFileURL()}/`;
 
 assert.strictEqual(import.meta.resolve('./test-esm-import-meta.mjs'),
-                   dirname + 'test-esm-import-meta.mjs');
+                   new URL('./test-esm-import-meta.mjs', import.meta.url).href);
 assert.strictEqual(import.meta.resolve('./notfound.mjs'), new URL('./notfound.mjs', import.meta.url).href);
 assert.strictEqual(import.meta.resolve('./asset'), new URL('./asset', import.meta.url).href);
-try {
+assert.throws(() => {
   import.meta.resolve('does-not-exist');
-  assert.fail();
-} catch (e) {
-  assert.strictEqual(e.code, 'ERR_MODULE_NOT_FOUND');
-}
+}, {
+  code: 'ERR_MODULE_NOT_FOUND',
+});
 assert.strictEqual(
   import.meta.resolve('../fixtures/empty-with-bom.txt'),
   fixtures + 'empty-with-bom.txt');
@@ -60,11 +59,11 @@ await assert.rejects(import('data:text/javascript,export default import.meta.res
 });
 
 {
-  const cp = spawn(execPath, [
+  const { stdout } = await spawnPromisified(execPath, [
     '--input-type=module',
     '--eval', 'console.log(typeof import.meta.resolve)',
   ]);
-  assert.match((await cp.stdout.toArray()).toString(), /^function\r?\n$/);
+  assert.match(stdout, /^function\r?\n$/);
 }
 
 {
@@ -76,11 +75,11 @@ await assert.rejects(import('data:text/javascript,export default import.meta.res
 }
 
 {
-  const cp = spawn(execPath, [
+  const { stdout } = await spawnPromisified(execPath, [
     '--input-type=module',
     '--eval', 'import "data:text/javascript,console.log(import.meta.resolve(%22node:os%22))"',
   ]);
-  assert.match((await cp.stdout.toArray()).toString(), /^node:os\r?\n$/);
+  assert.match(stdout, /^node:os\r?\n$/);
 }
 
 {

test/es-module/test-esm-pkgname.mjs

@@ -1,20 +1,13 @@
-import { mustCall } from '../common/index.mjs';
-import { strictEqual } from 'assert';
+import '../common/index.mjs';
+import assert from 'node:assert';
 
 import { importFixture } from '../fixtures/pkgexports.mjs';
 
-importFixture('as%2Ff').catch(mustCall((err) => {
-  strictEqual(err.code, 'ERR_INVALID_MODULE_SPECIFIER');
-}));
-
-importFixture('as%5Cf').catch(mustCall((err) => {
-  strictEqual(err.code, 'ERR_INVALID_MODULE_SPECIFIER');
-}));
-
-importFixture('as\\df').catch(mustCall((err) => {
-  strictEqual(err.code, 'ERR_INVALID_MODULE_SPECIFIER');
-}));
-
-importFixture('@as@df').catch(mustCall((err) => {
-  strictEqual(err.code, 'ERR_INVALID_MODULE_SPECIFIER');
-}));
+await Promise.all([
+  'as%2Ff',
+  'as%5Cf',
+  'as\\df',
+  '@as@df',
+].map((specifier) => assert.rejects(importFixture(specifier), {
+  code: 'ERR_INVALID_MODULE_SPECIFIER',
+})));