61 lines
1.0 KiB
Go
61 lines
1.0 KiB
Go
package dnsforward
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import (
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"net"
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"testing"
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"github.com/stretchr/testify/assert"
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)
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// fakeAddr is a mock implementation of net.Addr interface to simplify testing.
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type fakeAddr struct {
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// Addr is embedded here simply to make fakeAddr a net.Addr without
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// actually implementing all methods.
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net.Addr
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}
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func TestIPFromAddr(t *testing.T) {
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supIPv4 := net.IP{1, 2, 3, 4}
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supIPv6 := net.ParseIP("2a00:1450:400c:c06::93")
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testCases := []struct {
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name string
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addr net.Addr
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want net.IP
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}{{
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name: "ipv4_tcp",
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addr: &net.TCPAddr{
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IP: supIPv4,
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},
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want: supIPv4,
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}, {
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name: "ipv6_tcp",
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addr: &net.TCPAddr{
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IP: supIPv6,
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},
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want: supIPv6,
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}, {
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name: "ipv4_udp",
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addr: &net.UDPAddr{
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IP: supIPv4,
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},
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want: supIPv4,
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}, {
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name: "ipv6_udp",
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addr: &net.UDPAddr{
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IP: supIPv6,
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},
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want: supIPv6,
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}, {
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name: "non-ip_addr",
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addr: &fakeAddr{},
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want: nil,
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}}
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for _, tc := range testCases {
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t.Run(tc.name, func(t *testing.T) {
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assert.Equal(t, tc.want, IPFromAddr(tc.addr))
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})
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}
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}
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