mirror of
https://github.com/tailscale/tailscale.git
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cf8948da5f
I was running all tests while preparing a recent stable release, and
this was failing because my computer is connected to a fairly large
tailnet.
```
--- FAIL: TestGetRouteTable (0.01s)
routetable_linux_test.go:32: expected at least one default route;
...
```
```
$ ip route show table 52 | wc -l
1051
```
Updates #cleanup
Signed-off-by: Anton Tolchanov <anton@tailscale.com>
82 lines
1.9 KiB
Go
82 lines
1.9 KiB
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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//go:build linux
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package routetable
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import (
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"fmt"
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"net/netip"
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"testing"
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"golang.org/x/sys/unix"
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)
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func TestGetRouteTable(t *testing.T) {
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routes, err := Get(512000) // arbitrarily large
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if err != nil {
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t.Fatal(err)
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}
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// Basic assertion: we have at least one 'default' route in the main table
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var (
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hasDefault bool
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)
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for _, route := range routes {
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if route.Dst == defaultRouteIPv4 && route.Sys.(RouteEntryLinux).Table == unix.RT_TABLE_MAIN {
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hasDefault = true
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}
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}
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if !hasDefault {
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t.Errorf("expected at least one default route; routes=%v", routes)
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}
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}
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func TestRouteEntryFormatting(t *testing.T) {
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testCases := []struct {
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re RouteEntry
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want string
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}{
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{
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re: RouteEntry{
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Family: 4,
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Type: RouteTypeMulticast,
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Dst: RouteDestination{Prefix: netip.MustParsePrefix("100.64.0.0/10")},
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Gateway: netip.MustParseAddr("1.2.3.1"),
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Interface: "tailscale0",
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Sys: RouteEntryLinux{
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Type: unix.RTN_UNICAST,
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Table: 52,
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Proto: unix.RTPROT_STATIC,
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Src: netip.MustParseAddr("1.2.3.4"),
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Priority: 555,
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},
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},
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want: `{Family: IPv4, Type: multicast, Dst: 100.64.0.0/10, Gateway: 1.2.3.1, Interface: tailscale0, Sys: {Type: unicast, Table: 52, Proto: static, Src: 1.2.3.4, Priority: 555}}`,
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},
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{
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re: RouteEntry{
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Family: 4,
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Type: RouteTypeUnicast,
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Dst: RouteDestination{Prefix: netip.MustParsePrefix("1.2.3.0/24")},
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Gateway: netip.MustParseAddr("1.2.3.1"),
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Sys: RouteEntryLinux{
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Type: unix.RTN_UNICAST,
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Table: unix.RT_TABLE_MAIN,
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Proto: unix.RTPROT_BOOT,
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},
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},
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want: `{Family: IPv4, Dst: 1.2.3.0/24, Gateway: 1.2.3.1, Sys: {Type: unicast}}`,
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},
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}
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for _, tc := range testCases {
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t.Run("", func(t *testing.T) {
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got := fmt.Sprint(tc.re)
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if got != tc.want {
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t.Fatalf("RouteEntry.String() = %q; want %q", got, tc.want)
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}
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})
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}
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}
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