field:  "name",
				detail: dnsLabelErrMsg,
			}},
		},
		// More than one source field specified.
		{
			name: "more than one source",
			vol: core.Volume{
				Name: "dups",
				VolumeSource: core.VolumeSource{
					EmptyDir: &core.EmptyDirVolumeSource{},
					HostPath: &core.HostPathVolumeSource{
						Path: "/mnt/path",
						Type: newHostPathType(string(core.HostPathDirectory)),