1 files changed, 24 insertions, 0 deletions
diff --git a/jstests/updatef.js b/jstests/updatef.js
new file mode 100644
index 00000000000..69425932f19
--- /dev/null
+++ b/jstests/updatef.js
@@ -0,0 +1,24 @@
+// Test unsafe management of nsdt on update command yield SERVER-3208
+
+prefixNS = db.jstests_updatef;
+prefixNS.save( {} );
+
+t = db.jstests_updatef_actual;
+t.drop();
+
+t.save( {a:0,b:[]} );
+for( i = 0; i < 1000; ++i ) {
+	t.save( {a:100} );
+}
+t.save( {a:0,b:[]} );
+
+db.getLastError();
+// Repeatedly rename jstests_updatef to jstests_updatef_ and back.  This will
+// invalidate the jstests_updatef_actual NamespaceDetailsTransient object.
+s = startParallelShell( "for( i=0; i < 100; ++i ) { db.jstests_updatef.renameCollection( 'jstests_updatef_' ); db.jstests_updatef_.renameCollection( 'jstests_updatef' ); }" );
+
+for( i=0; i < 20; ++i ) {
+    t.update( {a:0}, {$push:{b:i}}, false, true );
+}
+
+s();