"error",
			map[string]handlerFunc{"/placement/region": errorHandler, "/placement/availability-zone": errorHandler},
			&core.Locality{},
		},
		{
			"locality",
			map[string]handlerFunc{"/placement/region": regionHandler, "/placement/availability-zone": zoneHandler},
			&core.Locality{Region: "us-west-2", Zone: "us-west-2b"},
		},
	}

	for _, v := range cases {
		t.Run(v.name, func(tt *testing.T) {