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tailscale/log/sockstatlog/logger_test.go

96 lines
1.9 KiB
Go

// Copyright (c) Tailscale Inc & AUTHORS
// SPDX-License-Identifier: BSD-3-Clause
package sockstatlog
import (
"testing"
"github.com/google/go-cmp/cmp"
"tailscale.com/net/sockstats"
)
func TestDelta(t *testing.T) {
tests := []struct {
name string
a, b *sockstats.SockStats
wantStats map[sockstats.Label]deltaStat
}{
{
name: "nil a stat",
a: nil,
b: &sockstats.SockStats{},
wantStats: nil,
},
{
name: "nil b stat",
a: &sockstats.SockStats{},
b: nil,
wantStats: nil,
},
{
name: "no change",
a: &sockstats.SockStats{
Stats: map[sockstats.Label]sockstats.SockStat{
sockstats.LabelDERPHTTPClient: {
TxBytes: 10,
},
},
},
b: &sockstats.SockStats{
Stats: map[sockstats.Label]sockstats.SockStat{
sockstats.LabelDERPHTTPClient: {
TxBytes: 10,
},
},
},
wantStats: nil,
},
{
name: "tx after empty stat",
a: &sockstats.SockStats{},
b: &sockstats.SockStats{
Stats: map[sockstats.Label]sockstats.SockStat{
sockstats.LabelDERPHTTPClient: {
TxBytes: 10,
},
},
},
wantStats: map[sockstats.Label]deltaStat{
sockstats.LabelDERPHTTPClient: {10, 0},
},
},
{
name: "rx after non-empty stat",
a: &sockstats.SockStats{
Stats: map[sockstats.Label]sockstats.SockStat{
sockstats.LabelDERPHTTPClient: {
TxBytes: 10,
RxBytes: 10,
},
},
},
b: &sockstats.SockStats{
Stats: map[sockstats.Label]sockstats.SockStat{
sockstats.LabelDERPHTTPClient: {
TxBytes: 10,
RxBytes: 30,
},
},
},
wantStats: map[sockstats.Label]deltaStat{
sockstats.LabelDERPHTTPClient: {0, 20},
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
gotStats := delta(tt.a, tt.b)
if !cmp.Equal(gotStats, tt.wantStats) {
t.Errorf("gotStats = %v, want %v", gotStats, tt.wantStats)
}
})
}
}