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net/dns: add NetworkManager regression test

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Use the exact /etc/resolv.conf file from a user report.
Updates https://github.com/tailscale/tailscale/issues/3531

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
This commit is contained in:
Denton Gentry 2022-02-10 13:41:04 -08:00 committed by Denton Gentry
parent 82cd98609f
commit dbea8217ac
1 changed files with 11 additions and 0 deletions
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11
net/dns/manager_linux_test.go
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@ -220,6 +220,17 @@ func TestLinuxDNSMode(t *testing.T) {
wantLog: "dns: [rc=nm nm-resolved=yes nm=no ret=systemd-resolved]",
want: "systemd-resolved",
},
{
// regression test for https://github.com/tailscale/tailscale/issues/3531
name: "networkmanager_but_systemd-resolved_with_search_domain",
env: env(resolvDotConf(
"# Generated by NetworkManager",
"search lan",
"nameserver 127.0.0.53"),
resolvedRunning()),
wantLog: "dns: [rc=nm nm-resolved=yes nm=no ret=systemd-resolved]",
want: "systemd-resolved",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {