396 lines
7.9 KiB
Go
396 lines
7.9 KiB
Go
// Copyright 2018 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package intervals
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import "testing"
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// Test tests Interval methods Add, Next and Last for various
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// initial state.
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func Test(t *testing.T) {
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for i, tc := range []struct {
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startLimit uint64
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initial [][2]uint64
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start uint64
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end uint64
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expected string
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nextStart uint64
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nextEnd uint64
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last uint64
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}{
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{
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initial: nil,
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start: 0,
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end: 0,
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expected: "[[0 0]]",
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nextStart: 1,
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nextEnd: 0,
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last: 0,
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},
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{
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initial: nil,
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start: 0,
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end: 10,
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expected: "[[0 10]]",
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nextStart: 11,
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nextEnd: 0,
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last: 10,
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},
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{
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initial: nil,
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start: 5,
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end: 15,
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expected: "[[5 15]]",
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nextStart: 0,
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nextEnd: 4,
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last: 15,
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},
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{
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initial: [][2]uint64{{0, 0}},
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start: 0,
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end: 0,
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expected: "[[0 0]]",
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nextStart: 1,
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nextEnd: 0,
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last: 0,
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},
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{
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initial: [][2]uint64{{0, 0}},
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start: 5,
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end: 15,
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expected: "[[0 0] [5 15]]",
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nextStart: 1,
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nextEnd: 4,
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last: 15,
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},
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{
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initial: [][2]uint64{{5, 15}},
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start: 5,
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end: 15,
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expected: "[[5 15]]",
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nextStart: 0,
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nextEnd: 4,
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last: 15,
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},
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{
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initial: [][2]uint64{{5, 15}},
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start: 5,
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end: 20,
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expected: "[[5 20]]",
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nextStart: 0,
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nextEnd: 4,
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last: 20,
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},
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{
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initial: [][2]uint64{{5, 15}},
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start: 10,
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end: 20,
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expected: "[[5 20]]",
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nextStart: 0,
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nextEnd: 4,
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last: 20,
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},
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{
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initial: [][2]uint64{{5, 15}},
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start: 0,
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end: 20,
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expected: "[[0 20]]",
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nextStart: 21,
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nextEnd: 0,
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last: 20,
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},
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{
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initial: [][2]uint64{{5, 15}},
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start: 2,
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end: 10,
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expected: "[[2 15]]",
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nextStart: 0,
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nextEnd: 1,
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last: 15,
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},
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{
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initial: [][2]uint64{{5, 15}},
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start: 2,
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end: 4,
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expected: "[[2 15]]",
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nextStart: 0,
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nextEnd: 1,
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last: 15,
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},
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{
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initial: [][2]uint64{{5, 15}},
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start: 2,
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end: 5,
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expected: "[[2 15]]",
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nextStart: 0,
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nextEnd: 1,
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last: 15,
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},
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{
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initial: [][2]uint64{{5, 15}},
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start: 2,
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end: 3,
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expected: "[[2 3] [5 15]]",
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nextStart: 0,
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nextEnd: 1,
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last: 15,
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},
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{
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initial: [][2]uint64{{5, 15}},
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start: 2,
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end: 4,
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expected: "[[2 15]]",
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nextStart: 0,
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nextEnd: 1,
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last: 15,
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},
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{
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initial: [][2]uint64{{0, 1}, {5, 15}},
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start: 2,
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end: 4,
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expected: "[[0 15]]",
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nextStart: 16,
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nextEnd: 0,
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last: 15,
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},
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{
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initial: [][2]uint64{{0, 5}, {15, 20}},
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start: 2,
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end: 10,
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expected: "[[0 10] [15 20]]",
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nextStart: 11,
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nextEnd: 14,
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last: 20,
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},
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{
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initial: [][2]uint64{{0, 5}, {15, 20}},
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start: 8,
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end: 18,
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expected: "[[0 5] [8 20]]",
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nextStart: 6,
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nextEnd: 7,
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last: 20,
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},
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{
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initial: [][2]uint64{{0, 5}, {15, 20}},
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start: 2,
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end: 17,
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expected: "[[0 20]]",
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nextStart: 21,
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nextEnd: 0,
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last: 20,
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},
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{
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initial: [][2]uint64{{0, 5}, {15, 20}},
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start: 2,
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end: 25,
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expected: "[[0 25]]",
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nextStart: 26,
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nextEnd: 0,
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last: 25,
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},
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{
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initial: [][2]uint64{{0, 5}, {15, 20}},
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start: 5,
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end: 14,
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expected: "[[0 20]]",
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nextStart: 21,
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nextEnd: 0,
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last: 20,
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},
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{
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initial: [][2]uint64{{0, 5}, {15, 20}},
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start: 6,
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end: 14,
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expected: "[[0 20]]",
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nextStart: 21,
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nextEnd: 0,
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last: 20,
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},
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{
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initial: [][2]uint64{{0, 5}, {15, 20}, {30, 40}},
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start: 6,
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end: 29,
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expected: "[[0 40]]",
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nextStart: 41,
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nextEnd: 0,
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last: 40,
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},
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{
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initial: [][2]uint64{{0, 5}, {15, 20}, {30, 40}, {50, 60}},
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start: 3,
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end: 55,
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expected: "[[0 60]]",
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nextStart: 61,
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nextEnd: 0,
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last: 60,
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},
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{
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initial: [][2]uint64{{0, 5}, {15, 20}, {30, 40}, {50, 60}},
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start: 21,
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end: 49,
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expected: "[[0 5] [15 60]]",
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nextStart: 6,
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nextEnd: 14,
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last: 60,
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},
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{
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initial: [][2]uint64{{0, 5}, {15, 20}, {30, 40}, {50, 60}},
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start: 0,
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end: 100,
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expected: "[[0 100]]",
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nextStart: 101,
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nextEnd: 0,
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last: 100,
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},
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{
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startLimit: 100,
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initial: nil,
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start: 0,
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end: 0,
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expected: "[]",
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nextStart: 100,
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nextEnd: 0,
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last: 0,
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},
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{
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startLimit: 100,
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initial: nil,
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start: 20,
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end: 30,
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expected: "[]",
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nextStart: 100,
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nextEnd: 0,
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last: 0,
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},
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{
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startLimit: 100,
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initial: nil,
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start: 50,
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end: 100,
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expected: "[[100 100]]",
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nextStart: 101,
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nextEnd: 0,
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last: 100,
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},
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{
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startLimit: 100,
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initial: nil,
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start: 50,
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end: 110,
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expected: "[[100 110]]",
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nextStart: 111,
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nextEnd: 0,
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last: 110,
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},
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{
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startLimit: 100,
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initial: nil,
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start: 120,
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end: 130,
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expected: "[[120 130]]",
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nextStart: 100,
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nextEnd: 119,
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last: 130,
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},
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{
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startLimit: 100,
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initial: nil,
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start: 120,
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end: 130,
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expected: "[[120 130]]",
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nextStart: 100,
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nextEnd: 119,
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last: 130,
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},
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} {
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intervals := NewIntervals(tc.startLimit)
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intervals.ranges = tc.initial
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intervals.Add(tc.start, tc.end)
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got := intervals.String()
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if got != tc.expected {
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t.Errorf("interval #%d: expected %s, got %s", i, tc.expected, got)
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}
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nextStart, nextEnd := intervals.Next()
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if nextStart != tc.nextStart {
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t.Errorf("interval #%d, expected next start %d, got %d", i, tc.nextStart, nextStart)
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}
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if nextEnd != tc.nextEnd {
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t.Errorf("interval #%d, expected next end %d, got %d", i, tc.nextEnd, nextEnd)
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}
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last := intervals.Last()
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if last != tc.last {
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t.Errorf("interval #%d, expected last %d, got %d", i, tc.last, last)
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}
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}
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}
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func TestMerge(t *testing.T) {
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for i, tc := range []struct {
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initial [][2]uint64
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merge [][2]uint64
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expected string
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}{
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{
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initial: nil,
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merge: nil,
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expected: "[]",
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},
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{
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initial: [][2]uint64{{10, 20}},
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merge: nil,
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expected: "[[10 20]]",
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},
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{
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initial: nil,
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merge: [][2]uint64{{15, 25}},
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expected: "[[15 25]]",
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},
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{
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initial: [][2]uint64{{0, 100}},
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merge: [][2]uint64{{150, 250}},
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expected: "[[0 100] [150 250]]",
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},
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{
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initial: [][2]uint64{{0, 100}},
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merge: [][2]uint64{{101, 250}},
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expected: "[[0 250]]",
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},
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{
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initial: [][2]uint64{{0, 10}, {30, 40}},
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merge: [][2]uint64{{20, 25}, {41, 50}},
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expected: "[[0 10] [20 25] [30 50]]",
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},
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{
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initial: [][2]uint64{{0, 5}, {15, 20}, {30, 40}, {50, 60}},
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merge: [][2]uint64{{6, 25}},
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expected: "[[0 25] [30 40] [50 60]]",
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},
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} {
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intervals := NewIntervals(0)
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intervals.ranges = tc.initial
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m := NewIntervals(0)
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m.ranges = tc.merge
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intervals.Merge(m)
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got := intervals.String()
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if got != tc.expected {
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t.Errorf("interval #%d: expected %s, got %s", i, tc.expected, got)
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}
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}
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}
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