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|
package util
import (
"testing"
"github.com/eduvpn/eduvpn-common/internal/test"
)
func TestCalculateGateway(t *testing.T) {
cases := []struct {
in string
want string
err string
}{
// normal cases
{
in: "10.10.10.5/24",
want: "10.10.10.1",
err: "",
},
{
in: "10.10.10.130/25",
want: "10.10.10.129",
err: "",
},
{
in: "fd42::5/112",
want: "fd42::1",
err: "",
},
{
in: "5502:df9::/64",
want: "5502:df9::1",
err: "",
},
// unrealistic scenario but we have to handle these!
{
in: "5502:df9::0/128",
want: "",
err: "IP network does not contain incremented IP: 5502:df9::1",
},
{
in: "5502:df9::ffff/128",
want: "",
err: "IP network does not contain incremented IP: 5502:df9::1:0",
},
{
in: "10.0.0.0/32",
want: "",
err: "IP network does not contain incremented IP: 10.0.0.1",
},
{
in: "10.0.0.255/32",
want: "",
err: "IP network does not contain incremented IP: 10.0.1.0",
},
// parsing errors
{
in: "10.0.0.1",
want: "",
err: "An internal error occurred. The cause of the error is: invalid CIDR address: 10.0.0.1.",
},
{
in: "bla",
want: "",
err: "An internal error occurred. The cause of the error is: invalid CIDR address: bla.",
},
{
in: "5502:df9::ffff",
want: "",
err: "An internal error occurred. The cause of the error is: invalid CIDR address: 5502:df9::ffff.",
},
}
for _, c := range cases {
got, err := CalculateGateway(c.in)
test.AssertError(t, err, c.err)
if got != c.want {
t.Fatalf("got: %v not equal to want: %v", got, c.want)
}
}
}
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