netbird/client/internal/dns/service_memory_test.go

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package dns
import (
"net"
"testing"
)
func TestGetLastIPFromNetwork(t *testing.T) {
tests := []struct {
addr string
ip string
}{
{"2001:db8::/32", "2001:db8:ffff:ffff:ffff:ffff:ffff:fffe"},
{"192.168.0.0/30", "192.168.0.2"},
{"192.168.0.0/16", "192.168.255.254"},
{"192.168.0.0/24", "192.168.0.254"},
}
for _, tt := range tests {
_, ipnet, err := net.ParseCIDR(tt.addr)
if err != nil {
t.Errorf("Error parsing CIDR: %v", err)
return
}
lastIP := getLastIPFromNetwork(ipnet, 1)
if lastIP != tt.ip {
t.Errorf("wrong IP address, expected %s: got %s", tt.ip, lastIP)
}
}
}