{
				WhenUnsatisfiable: api.DoNotSchedule,
				TopologyKey:       "kubernetes.io/hostname",
				MaxSkew:           1,
			},
		}
		defaultConstraints = []api.TopologySpreadConstraint{
			{
				NodeAffinityPolicy: &honor,
				NodeTaintsPolicy:   &ignore,
				WhenUnsatisfiable:  api.DoNotSchedule,
				TopologyKey:        "kubernetes.io/hostname",

			testPods: []*v1.Pod{
				st.MakePod().Name("p").UID("p").Label("foo", "").Priority(highPriority).
					SpreadConstraint(1, "zone", v1.DoNotSchedule, st.MakeLabelSelector().Exists("foo").Obj(), nil, nil, nil, nil).
					SpreadConstraint(1, "hostname", v1.DoNotSchedule, st.MakeLabelSelector().Exists("foo").Obj(), nil, nil, nil, nil).
					Obj(),
			},
			initPods: []*v1.Pod{