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4e083e4548
Fixes #9740 Signed-off-by: Paul Scott <paul@tailscale.com>
180 lines
3.3 KiB
Go
180 lines
3.3 KiB
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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package cmpver_test
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import (
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"testing"
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"tailscale.com/util/cmpver"
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)
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func TestCompare(t *testing.T) {
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tests := []struct {
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name string
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v1, v2 string
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want int
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}{
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{
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name: "both empty",
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want: 0,
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},
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{
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name: "v1 empty",
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v2: "1.2.3",
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want: -1,
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},
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{
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name: "v2 empty",
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v1: "1.2.3",
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want: 1,
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},
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{
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name: "semver major",
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v1: "2.0.0",
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v2: "1.9.9",
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want: 1,
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},
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{
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name: "semver major",
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v1: "2.0.0",
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v2: "1.9.9",
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want: 1,
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},
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{
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name: "semver minor",
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v1: "1.9.0",
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v2: "1.8.9",
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want: 1,
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},
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{
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name: "semver patch",
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v1: "1.9.9",
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v2: "1.9.8",
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want: 1,
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},
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{
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name: "semver equal",
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v1: "1.9.8",
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v2: "1.9.8",
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want: 0,
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},
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{
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name: "tailscale major",
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v1: "1.0-0",
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v2: "0.97-105",
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want: 1,
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},
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{
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name: "tailscale minor",
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v1: "0.98-0",
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v2: "0.97-105",
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want: 1,
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},
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{
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name: "tailscale patch",
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v1: "0.97-120",
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v2: "0.97-105",
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want: 1,
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},
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{
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name: "tailscale equal",
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v1: "0.97-105",
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v2: "0.97-105",
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want: 0,
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},
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{
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name: "tailscale weird extra field",
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v1: "0.96.1-0", // more fields == larger
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v2: "0.96-105",
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want: 1,
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},
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{
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// Though ۱ and ۲ both satisfy unicode.IsNumber, our previous use
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// of strconv.ParseUint with these characters would have lead us to
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// panic. We're now only looking at ascii numbers, so test these are
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// compared as text.
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name: "only ascii numbers",
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v1: "۱۱", // 2x EXTENDED ARABIC-INDIC DIGIT ONE
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v2: "۲", // 1x EXTENDED ARABIC-INDIC DIGIT TWO
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want: -1,
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},
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// A few specific OS version tests below.
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{
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name: "windows version",
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v1: "10.0.19045.3324",
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v2: "10.0.18362",
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want: 1,
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},
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{
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name: "windows 11 is everything above 10.0.22000",
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v1: "10.0.22631.2262",
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v2: "10.0.22000",
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want: 1,
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},
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{
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name: "android short version",
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v1: "10",
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v2: "7",
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want: 1,
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},
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{
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name: "android longer version",
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v1: "7.1.2",
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v2: "7",
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want: 1,
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},
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{
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name: "iOS version",
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v1: "15.6.1",
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v2: "15.6",
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want: 1,
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},
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{
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name: "Linux short kernel version",
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v1: "4.4.302+",
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v2: "4.0",
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want: 1,
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},
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{
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name: "Linux long kernel version",
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v1: "4.14.255-311-248.529.amzn2.x86_64",
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v2: "4.0",
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want: 1,
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},
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{
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name: "FreeBSD version",
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v1: "14.0-CURRENT",
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v2: "14",
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want: 1,
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},
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{
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name: "Synology version",
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v1: "Synology 6.2.4; kernel=3.10.105",
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v2: "Synology 6",
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want: 1,
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},
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}
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for _, test := range tests {
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t.Run(test.name, func(t *testing.T) {
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got := cmpver.Compare(test.v1, test.v2)
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if got != test.want {
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t.Errorf("Compare(%v, %v) = %v, want %v", test.v1, test.v2, got, test.want)
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}
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// Reversing the comparison should reverse the outcome.
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got2 := cmpver.Compare(test.v2, test.v1)
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if got2 != -test.want {
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t.Errorf("Compare(%v, %v) = %v, want %v", test.v2, test.v1, got2, -test.want)
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}
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// Check that version comparison does not allocate.
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if n := testing.AllocsPerRun(100, func() { cmpver.Compare(test.v1, test.v2) }); n > 0 {
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t.Errorf("Compare(%v, %v) got %v allocs per run", test.v1, test.v2, n)
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}
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})
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}
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}
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