1 files changed, 39 insertions, 0 deletions
diff --git a/js/src/tests/test262/language/expressions/equals/coerce-symbol-to-prim-err.js b/js/src/tests/test262/language/expressions/equals/coerce-symbol-to-prim-err.js
new file mode 100644
index 0000000000..7bb8cf0b73
--- /dev/null
+++ b/js/src/tests/test262/language/expressions/equals/coerce-symbol-to-prim-err.js
@@ -0,0 +1,39 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 12.10.3
+description: >
+    Behavior when error thrown by invocation of `Symbol.toPrimitive` method
+    during coercion
+info: |
+    [...]
+    7. Return the result of performing Abstract Equality Comparison rval ==
+       lval.
+
+    ES6 Section 7.2.12 Abstract Equality Comparison
+
+    [...]
+    10. If Type(x) is either String, Number, or Symbol and Type(y) is Object,
+        then return the result of the comparison x == ToPrimitive(y).
+
+    ES6 Section 7.1.1 ToPrimitive ( input [, PreferredType] )
+
+    [...]
+    4. Let exoticToPrim be GetMethod(input, @@toPrimitive).
+    5. ReturnIfAbrupt(exoticToPrim).
+    6. If exoticToPrim is not undefined, then
+       a. Let result be Call(exoticToPrim, input, «hint»).
+       b. ReturnIfAbrupt(result).
+features: [Symbol.toPrimitive]
+---*/
+
+var y = {};
+y[Symbol.toPrimitive] = function() {
+  throw new Test262Error();
+};
+
+assert.throws(Test262Error, function() {
+  0 == y;
+});
+
+reportCompare(0, 0);