test: test about:blank against invalid WHATWG URL

> If `failure` is true, parsing `about:blank` against `base`
> must give failure. This tests that the logic for converting
> base URLs into strings properly fails the whole parsing
> algorithm if the base URL cannot be parsed.

Fixes: #20720

PR-URL: #20796
Reviewed-By: Anatoli Papirovski <apapirovski@mac.com>
Reviewed-By: Daijiro Wachi <daijiro.wachi@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>

test/fixtures/url-tests.js

@@ -2,7 +2,7 @@
 
 /* The following tests are copied from WPT. Modifications to them should be
    upstreamed first. Refs:
-   https://github.com/w3c/web-platform-tests/blob/ed4bb727ed/url/urltestdata.json
+   https://github.com/w3c/web-platform-tests/blob/88b75886e/url/urltestdata.json
    License: http://www.w3.org/Consortium/Legal/2008/04-testsuite-copyright.html
 */
 module.exports =
@@ -6529,27 +6529,34 @@ module.exports =
     "search": "?a",
     "hash": "#%GH"
   },
-  "Bad bases",
+  "URLs that require a non-about:blank base. (Also serve as invalid base tests.)",
   {
-    "input": "test-a.html",
-    "base": "a",
+    "input": "a",
+    "base": "about:blank",
     "failure": true
   },
   {
-    "input": "test-a-slash.html",
-    "base": "a/",
+    "input": "a/",
+    "base": "about:blank",
     "failure": true
   },
   {
-    "input": "test-a-slash-slash.html",
-    "base": "a//",
+    "input": "a//",
+    "base": "about:blank",
     "failure": true
   },
+  "Bases that don't fail to parse but fail to be bases",
   {
     "input": "test-a-colon.html",
     "base": "a:",
     "failure": true
   },
+  {
+    "input": "test-a-colon-b.html",
+    "base": "a:b",
+    "failure": true
+  },
+  "Other base URL tests, that must succeed",
   {
     "input": "test-a-colon-slash.html",
     "base": "a:/",
@@ -6578,11 +6585,6 @@ module.exports =
     "search": "",
     "hash": ""
   },
-  {
-    "input": "test-a-colon-b.html",
-    "base": "a:b",
-    "failure": true
-  },
   {
     "input": "test-a-colon-slash-b.html",
     "base": "a:/b",

test/parallel/test-whatwg-url-parsing.js

@@ -12,7 +12,10 @@ const fixtures = require('../common/fixtures');
 
 // Tests below are not from WPT.
 const tests = require(fixtures.path('url-tests'));
-const failureTests = tests.filter((test) => test.failure).concat([
+
+const originalFailures = tests.filter((test) => test.failure);
+
+const typeFailures = [
   { input: '' },
   { input: 'test' },
   { input: undefined },
@@ -25,7 +28,23 @@ const failureTests = tests.filter((test) => test.failure).concat([
   { input: 'test', base: null },
   { input: 'http://nodejs.org', base: null },
   { input: () => {} }
-]);
+];
+
+// See https://github.com/w3c/web-platform-tests/pull/10955
+// > If `failure` is true, parsing `about:blank` against `base`
+// > must give failure. This tests that the logic for converting
+// > base URLs into strings properly fails the whole parsing
+// > algorithm if the base URL cannot be parsed.
+const aboutBlankFailures = originalFailures
+  .map((test) => ({
+    input: 'about:blank',
+    base: test.input,
+    failure: true
+  }));
+
+const failureTests = originalFailures
+  .concat(typeFailures)
+  .concat(aboutBlankFailures);
 
 const expectedError = common.expectsError(
   { code: 'ERR_INVALID_URL', type: TypeError }, failureTests.length);