private static Container createContainer(String containerId) {
    ContainerBuilder containerBuilder = new ContainerBuilder();
    containerBuilder.setId(Short.parseShort(containerId));
    containerBuilder.setName(containerId);
    containerBuilder.setStatus(Container.ContainerStatus.ACTIVE);
    return containerBuilder.build();
  }
Create a {@link Container} with the specified containerId.
@param containerId id of the container.
@return Container object.
ambry-quota/src/test/java/com/github/ambry/quota/capacityunit/AmbryCUQuotaSourceTest.java