{core.PodLogOptions{SinceSeconds: &negative}, 1},
		{core.PodLogOptions{SinceSeconds: &positive}, 0},
		{core.PodLogOptions{SinceSeconds: &zero}, 1},
		{core.PodLogOptions{SinceTime: &now}, 0},
	}
	for i, test := range tests {
		errs := ValidatePodLogOptions(&test.opt)
		if test.errs != len(errs) {
			t.Errorf("%d: Unexpected errors: %v", i, errs)
		}
	}
}