1 files changed, 77 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/Proxy/setPrototypeOf/toboolean-trap-result-false.js b/js/src/tests/test262/built-ins/Proxy/setPrototypeOf/toboolean-trap-result-false.js
new file mode 100644
index 0000000000..8720cffbc7
--- /dev/null
+++ b/js/src/tests/test262/built-ins/Proxy/setPrototypeOf/toboolean-trap-result-false.js
@@ -0,0 +1,77 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-proxy-object-internal-methods-and-internal-slots-setprototypeof-v
+description: >
+  Return false if ToBoolean(trap result) is false, without checking
+  target.[[IsExtensible]]
+info: |
+  [[SetPrototypeOf]] (V)
+
+  8. Let booleanTrapResult be ToBoolean(? Call(trap, handler, « target, V »)).
+  9. If booleanTrapResult is false, return false.
+  10. Let extensibleTarget be ? IsExtensible(target).
+  11. If extensibleTarget is true, return true.
+features: [Proxy, Reflect, Reflect.setPrototypeOf]
+---*/
+
+var called = 0;
+
+var target = new Proxy({}, {
+  isExtensible: function() {
+    called += 1;
+  }
+});
+
+var p = new Proxy(target, {
+  setPrototypeOf: function(t, v) {
+    return v.attr;
+  }
+});
+
+var result;
+
+result = Reflect.setPrototypeOf(p, {
+  attr: false
+});
+assert.sameValue(result, false, "false");
+assert.sameValue(called, 0, "false - isExtensible is not called");
+
+result = Reflect.setPrototypeOf(p, {
+  attr: ""
+});
+assert.sameValue(result, false, "the empty string");
+assert.sameValue(called, 0, "the empty string - isExtensible is not called");
+
+result = Reflect.setPrototypeOf(p, {
+  attr: 0
+});
+assert.sameValue(result, false, "0");
+assert.sameValue(called, 0, "0 - isExtensible is not called");
+
+result = Reflect.setPrototypeOf(p, {
+  attr: -0
+});
+assert.sameValue(result, false, "-0");
+assert.sameValue(called, 0, "-0 - isExtensible is not called");
+
+result = Reflect.setPrototypeOf(p, {
+  attr: null
+});
+assert.sameValue(result, false, "null");
+assert.sameValue(called, 0, "null - isExtensible is not called");
+
+result = Reflect.setPrototypeOf(p, {
+  attr: undefined
+});
+assert.sameValue(result, false, "undefined");
+assert.sameValue(called, 0, "undefined - isExtensible is not called");
+
+result = Reflect.setPrototypeOf(p, {
+  attr: NaN
+});
+assert.sameValue(result, false, "NaN");
+assert.sameValue(called, 0, "NaN - isExtensible is not called");
+
+reportCompare(0, 0);