From abafda8e956ccddd5d81fd4b8ba2a04ea74b317c Mon Sep 17 00:00:00 2001
From: Yoshiki Kurihara <yosyos0306@gmail.com>
Date: Thu, 5 May 2022 20:48:55 +0900
Subject: [PATCH] test: validate webstream encoder/decoder inspector
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PR-URL: https://github.com/nodejs/node/pull/42747
Refs: https://coverage.nodejs.org/coverage-24adba675179ebba/lib/internal/webstreams/encoding.js.html#L98
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Darshan Sen <raisinten@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Mestery <mestery@protonmail.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
---
 .../test-webstream-encoding-inspect.js        | 35 +++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 test/parallel/test-webstream-encoding-inspect.js

diff --git a/test/parallel/test-webstream-encoding-inspect.js b/test/parallel/test-webstream-encoding-inspect.js
new file mode 100644
index 00000000000000..69c947ebc6d990
--- /dev/null
+++ b/test/parallel/test-webstream-encoding-inspect.js
@@ -0,0 +1,35 @@
+'use strict';
+
+require('../common');
+
+const { TextEncoderStream, TextDecoderStream } = require('stream/web');
+const util = require('util');
+const assert = require('assert');
+
+const textEncoderStream = new TextEncoderStream();
+assert.strictEqual(
+  util.inspect(textEncoderStream),
+  `TextEncoderStream {
+  encoding: 'utf-8',
+  readable: ReadableStream { locked: false, state: 'readable', supportsBYOB: false },
+  writable: WritableStream { locked: false, state: 'writable' }
+}`
+);
+assert.throws(() => textEncoderStream[util.inspect.custom].call(), {
+  code: 'ERR_INVALID_THIS',
+});
+
+const textDecoderStream = new TextDecoderStream();
+assert.strictEqual(
+  util.inspect(textDecoderStream),
+  `TextDecoderStream {
+  encoding: 'utf-8',
+  fatal: false,
+  ignoreBOM: false,
+  readable: ReadableStream { locked: false, state: 'readable', supportsBYOB: false },
+  writable: WritableStream { locked: false, state: 'writable' }
+}`
+);
+assert.throws(() => textDecoderStream[util.inspect.custom].call(), {
+  code: 'ERR_INVALID_THIS',
+});