SERVER-8246 Add instanceof support for MinKey/MaxKey

1 files changed, 18 insertions, 0 deletions

diff --git a/jstests/core/type8.js b/jstests/core/type8.js
new file mode 100644
index 00000000000..246133b33d9
--- /dev/null
+++ b/jstests/core/type8.js
@@ -0,0 +1,18 @@
+(function(){
+    "use strict";
+
+    // SERVER-8246 Min/MaxKey should be comparable
+    //
+    // make sure that the MinKey MaxKey JS types are comparable
+
+    function testType(t1, t2) {
+        db.minmaxcmp.save({_id: t1});
+        var doc = db.minmaxcmp.findOne({_id: t1});
+        assert.eq(doc._id, t1, "Value for " + t1 + " did not round-trip to DB correctly");
+        assert.neq(doc._id, t2, "Value for " + t1 + " should not equal " + t2);
+        assert(doc._id instanceof t1, "Value for " + t1 + "should be instance of" + t1);
+        assert(!(doc._id instanceof t2), "Value for " + t1 + "shouldn't be instance of" + t2);
+    }
+    testType(MinKey, MaxKey);
+    testType(MaxKey, MinKey);
+})();