1 files changed, 69 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/RegExp/from-regexp-like-flag-override.js b/js/src/tests/test262/built-ins/RegExp/from-regexp-like-flag-override.js
new file mode 100644
index 0000000000..ea2fc25c36
--- /dev/null
+++ b/js/src/tests/test262/built-ins/RegExp/from-regexp-like-flag-override.js
@@ -0,0 +1,69 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+description: Initialization from a RegExp-like object (with flag overrides)
+es6id: 21.2.3.1
+info: |
+    1. Let patternIsRegExp be IsRegExp(pattern).
+    [...]
+    6. Else if patternIsRegExp is true, then
+       a. Let P be Get(pattern, "source").
+       b. ReturnIfAbrupt(P).
+       c. If flags is undefined, then
+          [...]
+       d. Else, let F be flags.
+    [...]
+    10. Return RegExpInitialize(O, P, F).
+features: [Symbol, Symbol.match]
+---*/
+
+var obj = {
+  source: 'source text'
+};
+var result;
+
+Object.defineProperty(obj, 'flags', {
+  get: function() {
+    $ERROR('The `flags` property value should not be referenced.');
+  }
+});
+
+obj[Symbol.match] = true;
+result = new RegExp(obj, 'g');
+assert.sameValue(
+  result.source, 'source text', '@@match specified as a primitive boolean'
+);
+assert.sameValue(
+  result.flags, 'g', '@@match specified as a primitive boolean'
+);
+
+obj[Symbol.match] = 'string';
+result = new RegExp(obj, 'g');
+assert.sameValue(
+  result.source, 'source text', '@@match specified as a primitive string'
+);
+assert.sameValue(result.flags, 'g', '@@match specified as a primitive string');
+
+obj[Symbol.match] = [];
+result = new RegExp(obj, 'g');
+assert.sameValue(
+  result.source, 'source text', '@@match specified as an array'
+);
+assert.sameValue(result.flags, 'g', '@@match specified as an array');
+
+obj[Symbol.match] = Symbol();
+result = new RegExp(obj, 'g');
+assert.sameValue(
+  result.source, 'source text', '@@match specified as a Symbol'
+);
+assert.sameValue(result.flags, 'g', '@@match specified as a Symbol');
+
+obj[Symbol.match] = 86;
+result = new RegExp(obj, 'g');
+assert.sameValue(
+  result.source, 'source text', '@@match specified as a primitive number'
+);
+assert.sameValue(result.flags, 'g', '@@match specified as a primitive number');
+
+reportCompare(0, 0);