1 files changed, 33 insertions, 0 deletions
diff --git a/js/src/tests/ecma_7/TypedObject/referencetypealiasing.js b/js/src/tests/ecma_7/TypedObject/referencetypealiasing.js
new file mode 100644
index 000000000..66e6e16a8
--- /dev/null
+++ b/js/src/tests/ecma_7/TypedObject/referencetypealiasing.js
@@ -0,0 +1,33 @@
+// |reftest| skip-if(!this.hasOwnProperty("TypedObject"))
+var BUGNUMBER = 898359;
+var summary = 'TypedObjects reference type aliasing';
+var actual = '';
+var expect = '';
+
+var ArrayType = TypedObject.ArrayType;
+var StructType = TypedObject.StructType;
+var Any = TypedObject.Any;
+var Object = TypedObject.Object;
+var string = TypedObject.string;
+
+function runTests()
+{
+  printBugNumber(BUGNUMBER);
+  printStatus(summary);
+
+  var MyType = new StructType({f: Object});
+
+  // Test aliasing
+  var myInstance = new MyType({f: {a: 22}});
+  var anotherInstance = new MyType({f: myInstance.f});
+  assertEq(myInstance.f.a, 22);
+  assertEq(myInstance.f.a, anotherInstance.f.a);
+
+  myInstance.f.a += 1;
+  assertEq(myInstance.f.a, 23);
+  assertEq(myInstance.f.a, anotherInstance.f.a);
+
+  reportCompare(true, true, "TypedObjects reference type aliasing tests");
+}
+
+runTests();