// Check db name duplication constraint SERVER-2111

a = db.getSisterDB( "dbcasetest_dbnamea" )
b = db.getSisterDB( "dbcasetest_dbnameA" )

a.dropDatabase();
b.dropDatabase();

assert.writeOK( a.foo.save( { x : 1 } ));

res = b.foo.save( { x : 1 } );
assert.writeError( res );

assert.neq( -1, db.getMongo().getDBNames().indexOf( a.getName() ) );
assert.eq( -1, db.getMongo().getDBNames().indexOf( b.getName() ) );
printjson( db.getMongo().getDBs().databases );

a.dropDatabase();
b.dropDatabase();

ai = db.getMongo().getDBNames().indexOf( a.getName() );
bi = db.getMongo().getDBNames().indexOf( b.getName() );
// One of these dbs may exist if there is a slave active, but they must
// not both exist.
assert( ai == -1 || bi == -1 );
printjson( db.getMongo().getDBs().databases );