mirror of
https://github.com/fumiama/WireGold.git
synced 2026-06-11 12:10:26 +08:00
31 lines
556 B
Go
31 lines
556 B
Go
package link
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import (
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"bytes"
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"crypto/rand"
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"io"
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"testing"
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)
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func TestXOR(t *testing.T) {
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m := Me{
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mask: 0x12345678_90abcdef,
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}
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buf := make([]byte, 4096)
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buf2 := make([]byte, 4096)
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for i := 1; i < 4096; i++ {
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data := buf[:i]
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orgdata := buf2[:i]
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r1 := bytes.NewBuffer(data[:0])
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r2 := bytes.NewBuffer(orgdata[:0])
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w := io.MultiWriter(r1, r2)
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_, err := io.CopyN(w, rand.Reader, int64(i))
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if err != nil {
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t.Fatal(err)
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}
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if !bytes.Equal(m.xordec(m.xorenc(r1.Bytes())), r2.Bytes()) {
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t.Fatal("unexpected xor at", i)
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}
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}
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}
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