1 files changed, 29 insertions, 0 deletions
diff --git a/jstests/core/query/type/type4.js b/jstests/core/query/type/type4.js
new file mode 100644
index 00000000000..c7e11110618
--- /dev/null
+++ b/jstests/core/query/type/type4.js
@@ -0,0 +1,29 @@
+(function() {
+"use strict";
+
+// Tests for SERVER-20080
+//
+// Verify that various types cannot be invoked as constructors
+
+var t = db.jstests_type4;
+t.drop();
+t.insert({});
+t.insert({});
+t.insert({});
+
+assert.throws(function() {
+    (new _rand())();
+}, [], "invoke constructor on natively injected function");
+
+assert.throws(function() {
+    var doc = db.test.findOne();
+    new doc();
+}, [], "invoke constructor on BSON");
+
+assert.throws(function() {
+    var cursor = t.find();
+    cursor.next();
+
+    new cursor._cursor._cursorHandle();
+}, [], "invoke constructor on CursorHandle");
+})();