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stringify_test.go
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// Copyright (c) 2024 Karl Gaissmaier
// SPDX-License-Identifier: MIT
package bart
import (
"net/netip"
"testing"
)
type stringTest struct {
cidrs []netip.Prefix
want string
}
func TestStringPanic(t *testing.T) {
t.Parallel()
defer func() {
if r := recover(); r == nil {
t.Errorf("Fprint(nil) did not panic")
}
}()
tbl := new(Table[any])
tbl.Insert(mpp("1.2.3.4/32"), nil)
tbl.Fprint(nil)
}
func TestStringEmpty(t *testing.T) {
t.Parallel()
tbl := new(Table[any])
want := ""
got := tbl.String()
if got != want {
t.Errorf("table is nil, expected %q, got %q", want, got)
}
}
func TestStringDefaultRouteV4(t *testing.T) {
t.Parallel()
tt := stringTest{
cidrs: []netip.Prefix{
mpp("0.0.0.0/0"),
},
want: `▼
└─ 0.0.0.0/0 (<nil>)
`,
}
tbl := new(Table[any])
checkString(t, tbl, tt)
}
func TestStringDefaultRouteV6(t *testing.T) {
t.Parallel()
tt := stringTest{
cidrs: []netip.Prefix{
mpp("::/0"),
},
want: `▼
└─ ::/0 (<nil>)
`,
}
tbl := new(Table[any])
checkString(t, tbl, tt)
}
func TestStringSampleV4(t *testing.T) {
t.Parallel()
tt := stringTest{
cidrs: []netip.Prefix{
mpp("172.16.0.0/12"),
mpp("10.0.0.0/24"),
mpp("192.168.0.0/16"),
mpp("10.0.0.0/8"),
mpp("10.0.1.0/24"),
mpp("169.254.0.0/16"),
mpp("127.0.0.0/8"),
mpp("127.0.0.1/32"),
mpp("192.168.1.0/24"),
},
want: `▼
├─ 10.0.0.0/8 (<nil>)
│ ├─ 10.0.0.0/24 (<nil>)
│ └─ 10.0.1.0/24 (<nil>)
├─ 127.0.0.0/8 (<nil>)
│ └─ 127.0.0.1/32 (<nil>)
├─ 169.254.0.0/16 (<nil>)
├─ 172.16.0.0/12 (<nil>)
└─ 192.168.0.0/16 (<nil>)
└─ 192.168.1.0/24 (<nil>)
`,
}
tbl := new(Table[any])
checkString(t, tbl, tt)
}
func TestStringSampleV6(t *testing.T) {
t.Parallel()
tt := stringTest{
cidrs: []netip.Prefix{
mpp("fe80::/10"),
mpp("::1/128"),
mpp("2000::/3"),
mpp("2001:db8::/32"),
},
want: `▼
├─ ::1/128 (<nil>)
├─ 2000::/3 (<nil>)
│ └─ 2001:db8::/32 (<nil>)
└─ fe80::/10 (<nil>)
`,
}
tbl := new(Table[any])
checkString(t, tbl, tt)
}
func TestStringSample(t *testing.T) {
t.Parallel()
tt := stringTest{
cidrs: []netip.Prefix{
mpp("fe80::/10"),
mpp("172.16.0.0/12"),
mpp("10.0.0.0/24"),
mpp("::1/128"),
mpp("192.168.0.0/16"),
mpp("10.0.0.0/8"),
mpp("::/0"),
mpp("10.0.1.0/24"),
mpp("169.254.0.0/16"),
mpp("2000::/3"),
mpp("2001:db8::/32"),
mpp("127.0.0.0/8"),
mpp("127.0.0.1/32"),
mpp("192.168.1.0/24"),
},
want: `▼
├─ 10.0.0.0/8 (<nil>)
│ ├─ 10.0.0.0/24 (<nil>)
│ └─ 10.0.1.0/24 (<nil>)
├─ 127.0.0.0/8 (<nil>)
│ └─ 127.0.0.1/32 (<nil>)
├─ 169.254.0.0/16 (<nil>)
├─ 172.16.0.0/12 (<nil>)
└─ 192.168.0.0/16 (<nil>)
└─ 192.168.1.0/24 (<nil>)
▼
└─ ::/0 (<nil>)
├─ ::1/128 (<nil>)
├─ 2000::/3 (<nil>)
│ └─ 2001:db8::/32 (<nil>)
└─ fe80::/10 (<nil>)
`,
}
tbl := new(Table[any])
checkString(t, tbl, tt)
}
func checkString(t *testing.T, tbl *Table[any], tt stringTest) {
t.Helper()
for _, cidr := range tt.cidrs {
tbl.Insert(cidr, nil)
}
got := tbl.String()
if tt.want != got {
t.Errorf("String got:\n%swant:\n%s", got, tt.want)
}
gotBytes, err := tbl.MarshalText()
if err != nil {
t.Errorf("unexpected error: %v", err)
}
if tt.want != string(gotBytes) {
t.Errorf("MarshalText got:\n%swant:\n%s", gotBytes, tt.want)
}
}