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d5baeeed5c
Rewrite log lines on the fly, based on the set of known peers. This enables us to use upstream wireguard-go logging, but maintain the Tailscale-style peer public key identifiers that the rest of our systems (and people) expect. Fixes #1183 Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
60 lines
1.3 KiB
Go
60 lines
1.3 KiB
Go
// Copyright (c) 2020 Tailscale Inc & AUTHORS All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package wglog_test
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import (
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"fmt"
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"testing"
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"github.com/tailscale/wireguard-go/wgcfg"
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"tailscale.com/wgengine/wglog"
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)
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func TestLogger(t *testing.T) {
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tests := []struct {
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in string
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want string
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omit bool
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}{
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{"hi", "hi", false},
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{"Routine: starting", "", true},
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{"peer(IMTB…r7lM) says it misses you", "[IMTBr] says it misses you", false},
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}
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c := make(chan string, 1)
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logf := func(format string, args ...interface{}) {
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s := fmt.Sprintf(format, args...)
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select {
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case c <- s:
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default:
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t.Errorf("wrote %q, but shouldn't have", s)
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}
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}
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x := wglog.NewLogger(logf)
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key, err := wgcfg.ParseHexKey("20c4c1ae54e1fd37cab6e9a532ca20646aff496796cc41d4519560e5e82bee53")
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if err != nil {
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t.Fatal(err)
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}
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x.SetPeers([]wgcfg.Peer{{PublicKey: key}})
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for _, tt := range tests {
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if tt.omit {
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// Write a message ourselves into the channel.
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// Then if logf also attempts to write into the channel, it'll fail.
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c <- ""
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}
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x.DeviceLogger.Info.Println(tt.in)
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got := <-c
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if tt.omit {
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continue
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}
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tt.want += "\n"
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if got != tt.want {
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t.Errorf("Println(%q) = %q want %q", tt.in, got, tt.want)
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}
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}
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}
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