public void testCastVarChar(@Injectable final DrillbitContext bitContext,
@Injectable UserServer.UserClientConnection connection) throws Throwable{
final BufferAllocator allocator = new TopLevelAllocator();
new NonStrictExpectations(){{
bitContext.getMetrics(); result = new MetricRegistry();
bitContext.getAllocator(); result = allocator;
bitContext.getConfig(); result = c;
bitContext.getOperatorCreatorRegistry(); result = new OperatorCreatorRegistry(c);
}};