test: use WPT runner to run encoding tests

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>

test/wpt/status/encoding.json

@@ -1 +1,51 @@
-{}
+{
+  "api-basics.any.js": {
+    "requires": ["small-icu"]
+  },
+  "textdecoder-fatal-streaming.any.js": {
+    "requires": ["small-icu"]
+  },
+  "textdecoder-fatal.any.js": {
+    "requires": ["small-icu"]
+  },
+  "textdecoder-ignorebom.any.js": {
+    "requires": ["small-icu"]
+  },
+  "textdecoder-streaming.any.js": {
+    "requires": ["small-icu"]
+  },
+  "textdecoder-utf16-surrogates.any.js": {
+    "requires": ["small-icu"]
+  },
+  "iso-2022-jp-decoder.any.js": {
+    "requires": ["full-icu"],
+    "fail": "iso-2022-jp decoder state handling bug: https://encoding.spec.whatwg.org/#iso-2022-jp-decoder"
+  },
+  "textdecoder-byte-order-marks.any.js": {
+    "fail": "Mismatching BOM should not be ignored"
+  },
+  "textdecoder-copy.any.js": {
+    "fail": "Should not have output BOM: https://encoding.spec.whatwg.org/#concept-td-serialize"
+  },
+  "textdecoder-fatal-single-byte.any.js": {
+    "requires": ["full-icu"],
+    "fail": "The iso-8859-16 encoding is not supported"
+  },
+  "textdecoder-labels.any.js": {
+    "requires": ["full-icu"],
+    "fail": "The iso-8859-16 encoding is not supported"
+  },
+  "textencoder-constructor-non-utf.any.js": {
+    "requires": ["full-icu"],
+    "fail": "The iso-8859-16 encoding is not supported"
+  },
+  "idlharness.any.js": {
+    "fail": "No implementation of TextDecoderStream and TextEncoderStream"
+  },
+  "replacement-encodings.any.js": {
+    "skip": "decoding-helpers.js needs XMLHttpRequest"
+  },
+  "unsupported-encodings.any.js": {
+    "skip": "decoding-helpers.js needs XMLHttpRequest"
+  }
+}

test/wpt/test-encoding.js

@@ -0,0 +1,12 @@
+'use strict';
+
+// Flags: --expose-internals
+
+require('../common');
+const { WPTRunner } = require('../common/wpt');
+const runner = new WPTRunner('encoding');
+
+// Copy global descriptors from the global object
+runner.copyGlobalsFromObject(global, ['TextDecoder', 'TextEncoder']);
+
+runner.runJsTests();