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package packet
import (
"bytes"
"testing"
"github.com/stretchr/testify/assert"
)
func TestDecodeTerminationMessage(t *testing.T) {
tests := []struct {
name string
input []byte
ch *CommonHeader
wantFail bool
expected *TerminationMessage
}{
{
name: "Full",
input: []byte{
0, 1, // sysDescr
0, 4, // Length
42, 42, 42, 42, // AAAA
0, 2, //sysName
0, 5, // Length
43, 43, 43, 43, 43, // BBBBB
},
ch: &CommonHeader{
MsgLength: CommonHeaderLen + 17,
},
wantFail: false,
expected: &TerminationMessage{
TLVs: []*InformationTLV{
{
InformationType: 1,
InformationLength: 4,
Information: []byte{42, 42, 42, 42},
},
{
InformationType: 2,
InformationLength: 5,
Information: []byte{43, 43, 43, 43, 43},
},
},
},
},
{
name: "Incomplete",
input: []byte{
0, 1, // sysDescr
0, 4, // Length
42, 42, 42, 42, // AAAA
0, 2, //sysName
0, 5, // Length
43, 43, 43, 43, // BBBB
},
ch: &CommonHeader{
MsgLength: CommonHeaderLen + 17,
},
wantFail: true,
},
}
for _, test := range tests {
buf := bytes.NewBuffer(test.input)
im, err := decodeTerminationMessage(buf, test.ch)
if err != nil {
if test.wantFail {
continue
}
t.Errorf("Unexpected failure for test %q: %v", test.name, err)
continue
}
if test.wantFail {
t.Errorf("Unexpected success for test %q", test.name)
continue
}
assert.Equalf(t, test.expected, im, "Test %q", test.name)
}
}