testFn := testCase.fn
		runTestOverPVCRetentionPolicies(
			t,
			fmt.Sprintf("%s/Monotonic", fnName),
			func(t *testing.T, policy *apps.StatefulSetPersistentVolumeClaimRetentionPolicy) {
				set := testObj()
				set.Spec.PersistentVolumeClaimRetentionPolicy = policy
				testFn(t, set, assertMonotonicInvariants)
			},
		)
		runTestOverPVCRetentionPolicies(
			t,
			fmt.Sprintf("%s/Burst", fnName),