59 lines
1.3 KiB
Go
59 lines
1.3 KiB
Go
package expr
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import (
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"encoding/binary"
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"reflect"
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"testing"
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"github.com/mdlayher/netlink"
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"golang.org/x/sys/unix"
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)
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func TestBitwise(t *testing.T) {
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t.Parallel()
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tests := []struct {
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name string
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bw Bitwise
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}{
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{
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name: "Unmarshal Bitwise IPv4 case",
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bw: Bitwise{
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SourceRegister: 1,
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DestRegister: 2,
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Len: 4,
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// By specifying Xor to 0x0,0x0,0x0,0x0 and Mask to 0xff,0xff,0x0,0x0
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// an expression will match /16 IPv4 address.
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Xor: []byte{0x0, 0x0, 0x0, 0x0},
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Mask: []byte{0xff, 0xff, 0x0, 0x0},
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},
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},
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}
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for _, tt := range tests {
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t.Run(tt.name, func(t *testing.T) {
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nbw := Bitwise{}
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data, err := tt.bw.marshal(0 /* don't care in this test */)
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if err != nil {
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t.Fatalf("marshal error: %+v", err)
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}
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ad, err := netlink.NewAttributeDecoder(data)
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if err != nil {
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t.Fatalf("NewAttributeDecoder() error: %+v", err)
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}
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ad.ByteOrder = binary.BigEndian
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for ad.Next() {
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if ad.Type() == unix.NFTA_EXPR_DATA {
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if err := nbw.unmarshal(0, ad.Bytes()); err != nil {
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t.Errorf("unmarshal error: %+v", err)
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break
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}
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}
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}
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if !reflect.DeepEqual(tt.bw, nbw) {
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t.Fatalf("original %+v and recovered %+v Bitwise structs are different", tt.bw, nbw)
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}
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})
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}
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}
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