syncthing/cmd/stdiscosrv/apisrv_test.go

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// Copyright (C) 2018 The Syncthing Authors.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at https://mozilla.org/MPL/2.0/.
package main
import (
"fmt"
"net"
"testing"
)
func TestFixupAddresses(t *testing.T) {
cases := []struct {
remote *net.TCPAddr
in []string
out []string
}{
{ // verbatim passthrough
in: []string{"tcp://1.2.3.4:22000"},
out: []string{"tcp://1.2.3.4:22000"},
}, { // unspecified replaced by remote
remote: addr("1.2.3.4", 22000),
in: []string{"tcp://:22000", "tcp://192.0.2.42:22000"},
out: []string{"tcp://1.2.3.4:22000", "tcp://192.0.2.42:22000"},
}, { // unspecified not used as replacement
remote: addr("0.0.0.0", 22000),
in: []string{"tcp://:22000", "tcp://192.0.2.42:22000"},
out: []string{"tcp://192.0.2.42:22000"},
}, { // unspecified not used as replacement
remote: addr("::", 22000),
in: []string{"tcp://:22000", "tcp://192.0.2.42:22000"},
out: []string{"tcp://192.0.2.42:22000"},
}, { // localhost not used as replacement
remote: addr("127.0.0.1", 22000),
in: []string{"tcp://:22000", "tcp://192.0.2.42:22000"},
out: []string{"tcp://192.0.2.42:22000"},
}, { // localhost not used as replacement
remote: addr("::1", 22000),
in: []string{"tcp://:22000", "tcp://192.0.2.42:22000"},
out: []string{"tcp://192.0.2.42:22000"},
}, { // multicast not used as replacement
remote: addr("224.0.0.1", 22000),
in: []string{"tcp://:22000", "tcp://192.0.2.42:22000"},
out: []string{"tcp://192.0.2.42:22000"},
}, { // multicast not used as replacement
remote: addr("ff80::42", 22000),
in: []string{"tcp://:22000", "tcp://192.0.2.42:22000"},
out: []string{"tcp://192.0.2.42:22000"},
}, { // explicitly announced weirdness is also filtered
remote: addr("192.0.2.42", 22000),
in: []string{"tcp://:22000", "tcp://127.1.2.3:22000", "tcp://[::1]:22000", "tcp://[ff80::42]:22000"},
out: []string{"tcp://192.0.2.42:22000"},
}, { // port remapping
remote: addr("123.123.123.123", 9000),
in: []string{"tcp://0.0.0.0:0"},
out: []string{"tcp://123.123.123.123:9000"},
}, { // unspecified port remapping
remote: addr("123.123.123.123", 9000),
in: []string{"tcp://:0"},
out: []string{"tcp://123.123.123.123:9000"},
}, { // empty remapping
remote: addr("123.123.123.123", 9000),
in: []string{"tcp://"},
out: []string{},
}, { // port only remapping
remote: addr("123.123.123.123", 9000),
in: []string{"tcp://44.44.44.44:0"},
out: []string{"tcp://44.44.44.44:9000"},
},
}
for _, tc := range cases {
out := fixupAddresses(tc.remote, tc.in)
if fmt.Sprint(out) != fmt.Sprint(tc.out) {
t.Errorf("fixupAddresses(%v, %v) => %v, expected %v", tc.remote, tc.in, out, tc.out)
}
}
}
func addr(host string, port int) *net.TCPAddr {
return &net.TCPAddr{
IP: net.ParseIP(host),
Port: port,
}
}