test: remove duplicate encoding tests in favor of WPT

PR-URL: #25321
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>

Author: joyeecheung

test/parallel/test-whatwg-encoding-api-basics.js

@@ -8,8 +8,6 @@ const common = require('../common');
 if (!common.hasIntl)
   common.skip('missing Intl');
 
-const assert = require('assert');
-
 {
   [
     { encoding: 'utf-8', sequence: [0xC0] },
@@ -28,12 +26,6 @@ const assert = require('assert');
           `The encoded data was not valid for encoding ${testCase.encoding}`
       }
     );
-
-    // TODO(joyeecheung): remove this when WPT is ported
-    assert.strictEqual(
-      new TextDecoder(testCase.encoding).decode(data),
-      '\uFFFD'
-    );
   });
 }
 
@@ -42,10 +34,6 @@ const assert = require('assert');
   const odd = new Uint8Array([0x00]);
   const even = new Uint8Array([0x00, 0x00]);
 
-  // TODO(joyeecheung): remove this when WPT is ported
-  assert.strictEqual(decoder.decode(odd, { stream: true }), '');
-  assert.strictEqual(decoder.decode(odd), '\u0000');
-
   common.expectsError(
     () => {
       decoder.decode(even, { stream: true });
@@ -69,8 +57,4 @@ const assert = require('assert');
         'The encoded data was not valid for encoding utf-16le'
     }
   );
-
-  // TODO(joyeecheung): remove this when WPT is ported
-  assert.strictEqual(decoder.decode(even, { stream: true }), '\u0000');
-  assert.strictEqual(decoder.decode(even), '\u0000');
 }

test/parallel/test-whatwg-encoding-custom-fatal-streaming.js

@@ -8,8 +8,6 @@ const common = require('../common');
 if (!common.hasIntl)
   common.skip('missing Intl');
 
-const assert = require('assert');
-
 const bad = [
   { encoding: 'utf-8', input: [0xFF], name: 'invalid code' },
   { encoding: 'utf-8', input: [0xC0], name: 'ends early' },
@@ -82,11 +80,3 @@ bad.forEach((t) => {
     }
   );
 });
-
-// TODO(joyeecheung): remove this when WPT is ported
-{
-  assert('fatal' in new TextDecoder());
-  assert.strictEqual(typeof new TextDecoder().fatal, 'boolean');
-  assert(!new TextDecoder().fatal);
-  assert(new TextDecoder('utf-8', { fatal: true }).fatal);
-}

test/parallel/test-whatwg-encoding-custom-textdecoder-fatal.js

@@ -8,8 +8,6 @@ const common = require('../common');
 if (!common.hasIntl)
   common.skip('missing Intl');
 
-const assert = require('assert');
-
 const bad = [
   {
     encoding: 'utf-16le',
@@ -44,11 +42,6 @@ const bad = [
 ];
 
 bad.forEach((t) => {
-  // TODO(joyeecheung): remove this when WPT is ported
-  assert.strictEqual(
-    new TextDecoder(t.encoding).decode(new Uint8Array(t.input)),
-    t.expected);
-
   common.expectsError(
     () => {
       new TextDecoder(t.encoding, { fatal: true })