lib: tweak use of internal/errors

In addition refactor common.throws to common.expectsError

PR-URL: https://github.com/nodejs/node/pull/13829
Refs: https://github.com/nodejs/node/issues/11273
Reviewed-By: Refael Ackermann <refack@gmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>

1 files changed, 2 insertions, 8 deletions

diff --git a/test/parallel/test-fs-read-file-assert-encoding.js b/test/parallel/test-fs-read-file-assert-encoding.js
index 4770db6eb7..2640355b56 100644
--- a/test/parallel/test-fs-read-file-assert-encoding.js
+++ b/test/parallel/test-fs-read-file-assert-encoding.js
@@ -1,17 +1,11 @@
 'use strict';
 
 const common = require('../common');
-const assert = require('assert');
 const fs = require('fs');
 
 const encoding = 'foo-8';
 const filename = 'bar.txt';
-const expectedError = common.expectsError({
-  code: 'ERR_INVALID_OPT_VALUE_ENCODING',
-  type: TypeError,
-});
-
-assert.throws(
+common.expectsError(
   fs.readFile.bind(fs, filename, { encoding }, common.mustNotCall()),
-  expectedError
+  { code: 'ERR_INVALID_OPT_VALUE_ENCODING', type: TypeError }
 );