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7dcf65a10a
Discovered this while investigating the following issue; I think it's unrelated, but might as well fix it. Also, add a test helper for checking things that have an IsZero method using the reflect package. Updates tailscale/support-escalations#55 Signed-off-by: Andrew Dunham <andrew@du.nham.ca> Change-Id: I57b7adde43bcef9483763b561da173b4c35f49e2
56 lines
1.4 KiB
Go
56 lines
1.4 KiB
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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package dns
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import (
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"fmt"
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"net/netip"
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"reflect"
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"testing"
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"tailscale.com/tstest"
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"tailscale.com/util/dnsname"
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)
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func TestOSConfigPrintable(t *testing.T) {
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ocfg := OSConfig{
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Hosts: []*HostEntry{
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{
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Addr: netip.AddrFrom4([4]byte{100, 1, 2, 3}),
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Hosts: []string{"server", "client"},
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},
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{
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Addr: netip.AddrFrom4([4]byte{100, 1, 2, 4}),
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Hosts: []string{"otherhost"},
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},
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},
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Nameservers: []netip.Addr{
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netip.AddrFrom4([4]byte{8, 8, 8, 8}),
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},
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SearchDomains: []dnsname.FQDN{
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dnsname.FQDN("foo.beta.tailscale.net."),
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dnsname.FQDN("bar.beta.tailscale.net."),
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},
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MatchDomains: []dnsname.FQDN{
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dnsname.FQDN("ts.com."),
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},
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}
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s := fmt.Sprintf("%+v", ocfg)
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const expected = `{Nameservers:[8.8.8.8] SearchDomains:[foo.beta.tailscale.net. bar.beta.tailscale.net.] MatchDomains:[ts.com.] Hosts:[&{Addr:100.1.2.3 Hosts:[server client]} &{Addr:100.1.2.4 Hosts:[otherhost]}]}`
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if s != expected {
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t.Errorf("format mismatch:\n got: %s\n want: %s", s, expected)
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}
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}
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func TestIsZero(t *testing.T) {
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tstest.CheckIsZero[OSConfig](t, map[reflect.Type]any{
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reflect.TypeFor[dnsname.FQDN](): dnsname.FQDN("foo.bar."),
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reflect.TypeFor[*HostEntry](): &HostEntry{
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Addr: netip.AddrFrom4([4]byte{100, 1, 2, 3}),
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Hosts: []string{"foo", "bar"},
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},
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})
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}
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