},
		{
			name:   "LargeWithinMiddle",
			base:   250,
			expect: 50,
			ranges: large,
		},
	}

	for _, test := range tests {
		t.Run(test.name, func(t *testing.T) {
			a := MakeAddrRanges(test.ranges...)
			i := a.FindSucc(test.base)
			if i != test.expect {
				t.Fatalf("expected %d, got %d", test.expect, i)
			}
		})
	}