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// Copyright 2021 The gVisor Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package testutil
import (
"testing"
"gvisor.dev/gvisor/pkg/tcpip"
)
// Who tests the testutils?
func TestMustParse4(t *testing.T) {
tcs := []struct {
str string
addr tcpip.Address
shouldPanic bool
}{
{
str: "127.0.0.1",
addr: "\x7f\x00\x00\x01",
}, {
str: "",
shouldPanic: true,
}, {
str: "fe80::1",
shouldPanic: true,
}, {
// In an ideal world this panics too, but net.IP
// doesn't distinguish between IPv4 and IPv4-mapped
// addresses.
str: "::ffff:0.0.0.1",
addr: "\x00\x00\x00\x01",
},
}
for _, tc := range tcs {
t.Run(tc.str, func(t *testing.T) {
if tc.shouldPanic {
defer func() {
if r := recover(); r == nil {
t.Errorf("panic expected, but did not occur")
}
}()
}
if got := MustParse4(tc.str); got != tc.addr {
t.Errorf("got MustParse4(%s) = %s, want = %s", tc.str, got, tc.addr)
}
})
}
}
func TestMustParse6(t *testing.T) {
tcs := []struct {
str string
addr tcpip.Address
shouldPanic bool
}{
{
// In an ideal world this panics too, but net.IP
// doesn't distinguish between IPv4 and IPv4-mapped
// addresses.
str: "127.0.0.1",
addr: "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xff\xff\x7f\x00\x00\x01",
}, {
str: "",
shouldPanic: true,
}, {
str: "fe80::1",
addr: "\xfe\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x01",
}, {
str: "::ffff:0.0.0.1",
addr: "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xff\xff\x00\x00\x00\x01",
},
}
for _, tc := range tcs {
t.Run(tc.str, func(t *testing.T) {
if tc.shouldPanic {
defer func() {
if r := recover(); r == nil {
t.Errorf("panic expected, but did not occur")
}
}()
}
if got := MustParse6(tc.str); got != tc.addr {
t.Errorf("got MustParse6(%s) = %s, want = %s", tc.str, got, tc.addr)
}
})
}
}
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