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package cidr
import (
"fmt"
"testing"
"github.com/zclconf/go-cty/cty"
)
func TestHost(t *testing.T) {
tests := []struct {
Prefix cty.Value
Hostnum cty.Value
Want cty.Value
Err bool
}{
{
cty.StringVal("192.168.1.0/24"),
cty.NumberIntVal(5),
cty.StringVal("192.168.1.5"),
false,
},
{
cty.StringVal("192.168.1.0/24"),
cty.NumberIntVal(-5),
cty.StringVal("192.168.1.251"),
false,
},
{
cty.StringVal("192.168.1.0/24"),
cty.NumberIntVal(-256),
cty.StringVal("192.168.1.0"),
false,
},
{
cty.StringVal("192.168.1.0/30"),
cty.NumberIntVal(255),
cty.UnknownVal(cty.String),
true, // 255 doesn't fit in two bits
},
{
cty.StringVal("192.168.1.0/30"),
cty.NumberIntVal(-255),
cty.UnknownVal(cty.String),
true, // 255 doesn't fit in two bits
},
{
cty.StringVal("not-a-cidr"),
cty.NumberIntVal(6),
cty.UnknownVal(cty.String),
true, // not a valid CIDR mask
},
{
cty.StringVal("10.256.0.0/8"),
cty.NumberIntVal(6),
cty.UnknownVal(cty.String),
true, // can't have an octet >255
},
}
for _, test := range tests {
t.Run(fmt.Sprintf("cidrhost(%#v, %#v)", test.Prefix, test.Hostnum), func(t *testing.T) {
got, err := Host(test.Prefix, test.Hostnum)
if test.Err {
if err == nil {
t.Fatal("succeeded; want error")
}
return
} else if err != nil {
t.Fatalf("unexpected error: %s", err)
}
if !got.RawEquals(test.Want) {
t.Errorf("wrong result\ngot: %#v\nwant: %#v", got, test.Want)
}
})
}
}
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