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package cose
import (
"bytes"
"reflect"
"testing"
"github.com/fxamacker/cbor/v2"
)
func Test_byteString_UnmarshalCBOR(t *testing.T) {
// test nil pointer
t.Run("nil byteString pointer", func(t *testing.T) {
var s *byteString
data := []byte{0x40}
if err := s.UnmarshalCBOR(data); err == nil {
t.Errorf("want error on nil *byteString")
}
})
// test others
tests := []struct {
name string
data []byte
want byteString
wantErr string
}{
{
name: "valid string",
data: []byte{0x43, 0x66, 0x6f, 0x6f},
want: []byte{0x66, 0x6f, 0x6f},
},
{
name: "empty string",
data: []byte{0x40},
want: []byte{},
},
{
name: "nil string",
data: []byte{0xf6},
want: nil,
},
{
name: "undefined string",
data: []byte{0xf7},
wantErr: "cbor: require bstr type",
},
{
name: "nil CBOR data",
data: nil,
wantErr: "EOF",
},
{
name: "empty CBOR data",
data: []byte{},
wantErr: "EOF",
},
{
name: "tagged string",
data: []byte{0xc2, 0x40},
wantErr: "cbor: require bstr type",
},
{
name: "array of bytes", // issue #46
data: []byte{0x82, 0x00, 0x1},
wantErr: "cbor: require bstr type",
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
var got byteString
err := got.UnmarshalCBOR(tt.data)
if err != nil && (err.Error() != tt.wantErr) {
t.Errorf("byteString.UnmarshalCBOR() error = %v, wantErr %v", err, tt.wantErr)
} else if err == nil && (tt.wantErr != "") {
t.Errorf("byteString.UnmarshalCBOR() error = %v, wantErr %v", err, tt.wantErr)
}
if !bytes.Equal(got, tt.want) {
t.Errorf("byteString.UnmarshalCBOR() = %v, want %v", got, tt.want)
}
})
}
}
func Test_deterministicBinaryString(t *testing.T) {
gen := func(initial []byte, size int) []byte {
data := make([]byte, size+len(initial))
copy(data, initial)
return data
}
tests := []struct {
name string
data cbor.RawMessage
want cbor.RawMessage
wantErr bool
}{
{
name: "empty input",
data: nil,
wantErr: true,
},
{
name: "not bstr",
data: []byte{0x00},
wantErr: true,
},
{
name: "short length",
data: gen([]byte{0x57}, 23),
want: gen([]byte{0x57}, 23),
},
{
name: "optimal uint8 length",
data: gen([]byte{0x58, 0x18}, 24),
want: gen([]byte{0x58, 0x18}, 24),
},
{
name: "non-optimal uint8 length",
data: gen([]byte{0x58, 0x17}, 23),
want: gen([]byte{0x57}, 23),
},
{
name: "optimal uint16 length",
data: gen([]byte{0x59, 0x01, 0x00}, 256),
want: gen([]byte{0x59, 0x01, 0x00}, 256),
},
{
name: "non-optimal uint16 length, target short",
data: gen([]byte{0x59, 0x00, 0x17}, 23),
want: gen([]byte{0x57}, 23),
},
{
name: "non-optimal uint16 length, target uint8",
data: gen([]byte{0x59, 0x00, 0x18}, 24),
want: gen([]byte{0x58, 0x18}, 24),
},
{
name: "optimal uint32 length",
data: gen([]byte{0x5a, 0x00, 0x01, 0x00, 0x00}, 65536),
want: gen([]byte{0x5a, 0x00, 0x01, 0x00, 0x00}, 65536),
},
{
name: "non-optimal uint32 length, target short",
data: gen([]byte{0x5a, 0x00, 0x00, 0x00, 0x17}, 23),
want: gen([]byte{0x57}, 23),
},
{
name: "non-optimal uint32 length, target uint8",
data: gen([]byte{0x5a, 0x00, 0x00, 0x00, 0x18}, 24),
want: gen([]byte{0x58, 0x18}, 24),
},
{
name: "non-optimal uint32 length, target uint16",
data: gen([]byte{0x5a, 0x00, 0x00, 0x01, 0x00}, 256),
want: gen([]byte{0x59, 0x01, 0x00}, 256),
},
{
name: "non-optimal uint64 length, target short",
data: gen([]byte{0x5b,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x17,
}, 23),
want: gen([]byte{0x57}, 23),
},
{
name: "non-optimal uint64 length, target uint8",
data: gen([]byte{0x5b,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x18,
}, 24),
want: gen([]byte{0x58, 0x18}, 24),
},
{
name: "non-optimal uint64 length, target uint16",
data: gen([]byte{0x5b,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x01, 0x00,
}, 256),
want: gen([]byte{0x59, 0x01, 0x00}, 256),
},
{
name: "non-optimal uint64 length, target uint32",
data: gen([]byte{0x5b,
0x00, 0x00, 0x00, 0x00,
0x00, 0x01, 0x00, 0x00,
}, 65536),
want: gen([]byte{0x5a, 0x00, 0x01, 0x00, 0x00}, 65536),
},
{
name: "early EOF",
data: gen([]byte{0x5b,
0x01, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
}, 42),
wantErr: true,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
got, err := deterministicBinaryString(tt.data)
if (err != nil) != tt.wantErr {
t.Errorf("deterministicBinaryString() error = %v, wantErr %v", err, tt.wantErr)
return
}
if !reflect.DeepEqual(got, tt.want) {
t.Errorf("deterministicBinaryString() = %v, want %v", got, tt.want)
}
})
}
}
|
