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package xof_test
import (
"bytes"
"encoding/hex"
"io"
"testing"
"github.com/cloudflare/circl/internal/test"
"github.com/cloudflare/circl/xof"
)
type vector struct {
id xof.ID
in, out string
outLen int
}
var allVectors = []vector{
{
id: xof.SHAKE128,
in: "",
out: "7f9c2ba4e88f827d616045507605853ed73b8093f6efbc88eb1a6eacfa66ef26",
outLen: 32,
},
{
id: xof.SHAKE256,
in: "",
out: "46b9dd2b0ba88d13233b3feb743eeb243fcd52ea62b81b82b50c27646ed5762fd75dc4ddd8c0f200cb05019d67b592f6fc821c49479ab48640292eacb3b7c4be",
outLen: 64,
},
{
id: xof.SHAKE128,
in: "The quick brown fox jumps over the lazy dog",
out: "f4202e3c5852f9182a0430fd8144f0a74b95e7417ecae17db0f8cfeed0e3e66e",
outLen: 32,
},
{
id: xof.SHAKE128,
in: "The quick brown fox jumps over the lazy dof",
out: "853f4538be0db9621a6cea659a06c1107b1f83f02b13d18297bd39d7411cf10c",
outLen: 32,
},
{
id: xof.BLAKE2XB,
in: "The quick brown fox jumps over the lazy dog",
out: "364e84ca4c103df292306c93ebba6f6633d5e9cc8a95e040498e9a012d5ca534",
outLen: 32,
},
{
id: xof.BLAKE2XS,
in: "The quick brown fox jumps over the lazy dog",
out: "0650cde4df888a06eada0f0fecb3c17594304b4a03fdd678182f27db1238b174",
outLen: 32,
},
{
id: xof.K12D10,
in: "The quick brown fox jumps over the lazy dog",
out: "b4f249b4f77c58df170aa4d1723db1127d82f1d98d25ddda561ada459cd11a48",
outLen: 32,
},
}
func TestXof(t *testing.T) {
for i, v := range allVectors {
X := v.id.New()
_, err := X.Write([]byte(v.in))
test.CheckNoErr(t, err, "error on xof.Write")
got := make([]byte, v.outLen)
want, _ := hex.DecodeString(v.out)
for _, x := range []io.Reader{X, X.Clone()} {
n, err := x.Read(got)
test.CheckNoErr(t, err, "error on xof.Read")
if n != v.outLen || !bytes.Equal(got, want) {
test.ReportError(t, got, want, i, v.id)
}
}
}
err := test.CheckPanic(func() {
var nonID xof.ID
nonID.New()
})
test.CheckNoErr(t, err, "must panic")
}
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