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m_mpls_test.go
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package tc
import (
"errors"
"testing"
"github.com/google/go-cmp/cmp"
)
func TestMPLS(t *testing.T) {
tests := map[string]struct {
val MPLS
err1 error
err2 error
}{
"all options": {val: MPLS{
Parms: &MPLSParam{
Index: 1,
MAction: MPLSActModify,
},
Proto: int16Ptr(101),
Label: uint32Ptr(102),
TC: uint8Ptr(103),
TTL: uint8Ptr(104),
BOS: uint8Ptr(105),
}},
"tm": {
val: MPLS{
Tm: &Tcft{
Install: 1,
LastUse: 2,
},
},
err1: ErrNoArgAlter,
},
}
for name, testcase := range tests {
t.Run(name, func(t *testing.T) {
data, err1 := marshalMPLS(&testcase.val)
if !errors.Is(err1, testcase.err1) {
t.Fatalf("Unexpected error: %v", err1)
}
newData, tm := injectTcft(t, data, tcaMPLSTm)
val := MPLS{}
err2 := unmarshalMPLS(newData, &val)
if !errors.Is(err2, testcase.err2) {
t.Fatalf("Unexpected error: %v", err2)
}
testcase.val.Tm = tm
if diff := cmp.Diff(val, testcase.val); diff != "" {
t.Fatalf("MPLS missmatch (want +got):\n%s", diff)
}
})
}
t.Run("marshal(nil)", func(t *testing.T) {
_, err := marshalMPLS(nil)
if !errors.Is(err, ErrNoArg) {
t.Fatalf("unexpected error: %v", err)
}
})
t.Run("unmarshal(0x0)", func(t *testing.T) {
val := MPLS{}
if err := unmarshalMPLS([]byte{0x00}, &val); err == nil {
t.Fatalf("expected error but got nil")
}
})
}