Update number parsing.

test/browser/language_tests.js

 // Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 (function() {
   'use strict';
 
   let dart_sdk = dart_library.import('dart_sdk');
   dart_sdk._isolate_helper.startRootIsolate(function() {}, []);
   let async_helper = dart_library.import('async_helper').async_helper;
 
   // Test attributes are a list of strings, or a string for a single
   // attribute. Valid attribues are:
   //
   //   'skip' - don't run the test
   //   'fail' - test fails
   //   'timeout' - test times out
+  //   'slow' - use 5s timeout instead of default 2s.
   //   'helper'  - not a test, used by other tests.
   //   'unittest' - run separately as a unittest test.
   //
   // Common combinations:
   const fail = 'fail';
   const skip_fail = ['skip', 'fail'];
   const skip_timeout = ['skip', 'timeout'];
 
   // TODO(jmesserly): separate StrongModeError from other errors.
   let all_status = {
@@ skipping 379 matching lines @@
       'from_environment_const_type_undefined_test_none_multi': skip_fail,  // constructor throws
       'hash_map2_test': skip_timeout,
       'hash_set_test_01_multi': fail,
       'hidden_library2_test_01_multi': fail,
       'indexed_list_access_test': fail,
       'int_from_environment2_test': fail,
       'int_from_environment_test': fail,
       'int_modulo_arith_test_bignum_multi': fail,
       'int_modulo_arith_test_modPow_multi': fail,
       'int_modulo_arith_test_none_multi': fail,
+      'int_parse_radix_test_01_multi': fail, // JS implementations disagree on U+0085 being whitespace.
+      'int_parse_radix_test_02_multi': ['fail', 'timeout', 'skip'], // No bigints.
+      'int_parse_radix_test_none_multi': ['slow'],
       'integer_to_radix_string_test': fail,
       'integer_to_string_test_01_multi': fail,
       'iterable_generate_test': fail,
       'iterable_return_type_test_01_multi': fail,
       'iterable_return_type_test_02_multi': fail,
       'iterable_return_type_test_none_multi': fail,
       'json_map_test': fail,
       'list_fill_range_test': fail,
       'list_replace_range_test': fail,
       'list_set_all_test': fail,
@@ skipping 83 matching lines @@
       // A few tests are special because they use package:unittest.
       // We run them below.
       if (has('unittest')) {
         unittest_tests.push(() => {
           console.log('Running unittest test ' + testFile);
           dart_library.import(module)[name].main();
         });
         continue;
       }
 
-      test(name, (done) => {
+      function protect(f) {  // Returns the exception, or `null`.
+        try {
+          f();
+          return null;
+        } catch (e) {
+          return e;
+        };
+      }
+
+      test(name, function(done) { // 'function' to allow `this.timeout`.
         async_helper.asyncTestInitialize(done);
         console.debug('Running test:  ' + name);
 
         let mainLibrary = dart_library.import(module)[name];
         let negative = /negative_test/.test(name);
-        if (has('fail')) negative = !negative;
-        if (negative) {
-          assert.throws(mainLibrary.main);
+        if (has('slow')) this.timeout(5000);
+        if (has('fail')) {
+          let e = protect(mainLibrary.main);
+          if (negative) {
+            if (e != null) {
+              throw new Error(
+                  "negative test marked as 'fail' " +
+                  "but passed by throwing:\n" + e);
+            }
+          } else {
+            if (e == null) {
+              throw new Error("test marked as 'fail' but passed");
+            }
+          }
         } else {
-          mainLibrary.main();
+          if (negative) {
+            assert.throws(mainLibrary.main);
+          } else {
+            mainLibrary.main();
+          }
         }
 
         if (!async_helper.asyncTestStarted) done();
       });
     }
   }
 
   for (let action of unittest_tests) {
     action();
   }
 })();