1 files changed, 20 insertions, 0 deletions
diff --git a/js/xpconnect/tests/unit/test_bug1131707.js b/js/xpconnect/tests/unit/test_bug1131707.js
new file mode 100644
index 0000000000..57ade9f8c8
--- /dev/null
+++ b/js/xpconnect/tests/unit/test_bug1131707.js
@@ -0,0 +1,20 @@
+function testStrict(sb) {
+  "use strict";
+  Assert.equal(sb.eval("typeof wrappedCtor()"), "string");
+  Assert.equal(sb.eval("typeof new wrappedCtor()"), "object");
+}
+
+function run_test() {
+  var sb = new Cu.Sandbox(null);
+  var dateCtor = sb.Date;
+  sb.wrappedCtor = Cu.exportFunction(function wrapper(val) {
+    "use strict";
+    var constructing = this.constructor == wrapper;
+    return constructing ? new dateCtor(val) : dateCtor(val);
+  }, sb);
+  Assert.equal(typeof Date(), "string");
+  Assert.equal(typeof new Date(), "object");
+  Assert.equal(sb.eval("typeof wrappedCtor()"), "string");
+  Assert.equal(sb.eval("typeof new wrappedCtor()"), "object");
+  testStrict(sb);
+}