// unique index test for a case where the object grows
// and must move

// see indexa.js for the test case for an update with dup id check 
// when it doesn't move


t = db.indexb;
t.drop();
t.ensureIndex({a:1},true);

t.insert({a:1});

x = { a : 2 };
t.save(x);

{

 assert( t.count() == 2, "count wrong B");

 x.a = 1;
 x.filler = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
 t.save(x); // should fail, not unique.

 assert( t.count() == 2,"count wrong" );
 assert( t.find({a:1}).count() == 1,"bfail1" );
 assert( t.find({a:2}).count() == 1,"bfail2" );

}