1 files changed, 17 insertions, 0 deletions
diff --git a/jstests/core/set5.js b/jstests/core/set5.js
new file mode 100644
index 00000000000..afa0d014bde
--- /dev/null
+++ b/jstests/core/set5.js
@@ -0,0 +1,17 @@
+
+t = db.set5;
+t.drop();
+
+function check( want , err ){
+    var x = t.findOne();
+    delete x._id;
+    assert.docEq( want , x , err );
+}
+
+t.update( { a : 5 } , { $set : { a : 6 , b : null } } , true );
+check( { a : 6 , b : null } , "A" )
+
+t.drop();
+
+t.update( { z : 5 } , { $set : { z : 6 , b : null } } , true );
+check( { b : null , z : 6 } , "B" )