1 files changed, 31 insertions, 0 deletions
diff --git a/jstests/core/notablescan.js b/jstests/core/notablescan.js
new file mode 100644
index 00000000000..f2ca68d2912
--- /dev/null
+++ b/jstests/core/notablescan.js
@@ -0,0 +1,31 @@
+// check notablescan mode
+
+t = db.test_notablescan;
+t.drop();
+
+try {
+    assert.commandWorked( db._adminCommand( { setParameter:1, notablescan:true } ) );
+    // commented lines are SERVER-2222
+    if ( 0 ) { // SERVER-2222
+        assert.throws( function() { t.find( {a:1} ).toArray(); } );
+    }
+    t.save( {a:1} );
+    if ( 0 ) { // SERVER-2222
+        assert.throws( function() { t.count( {a:1} ); } );
+        assert.throws( function() { t.find( {} ).toArray(); } );
+    }
+    assert.eq( 1, t.find( {} ).itcount() ); // SERVER-274
+    assert.throws( function() { t.find( {a:1} ).toArray(); } );
+    assert.throws( function() { t.find( {a:1} ).hint( {$natural:1} ).toArray(); } );
+    t.ensureIndex( {a:1} );
+    assert.eq( 0, t.find( {a:1,b:1} ).itcount() );    
+    assert.eq( 1, t.find( {a:1,b:null} ).itcount() );
+
+    // SERVER-4327
+    assert.eq( 0, t.find( {a:{$in:[]}} ).itcount() );
+    assert.eq( 0, t.find( {a:{$in:[]},b:0} ).itcount() );
+} finally {
+    // We assume notablescan was false before this test started and restore that
+    // expected value.
+    assert.commandWorked( db._adminCommand( { setParameter:1, notablescan:false } ) );
+}