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package keccak
import (
"encoding/json"
"fmt"
"testing"
qt "github.com/frankban/quicktest"
)
func printS(n string, s []uint64) {
jS, err := json.Marshal(s)
if err != nil {
panic(err)
}
fmt.Printf("%s: %s\n", n, string(jS))
}
func newS() ([25 * 64]bool, [25]uint64) {
var s [25 * 64]bool
var sU64 [25]uint64
for i := 0; i < len(s)/64; i++ {
copy(s[i*64:i*64+64], u64ToBits(uint64(i)))
sU64[i] = uint64(i)
}
return s, sU64
}
func TestTheta(t *testing.T) {
s, sU64 := newS()
s = theta(s)
sU64 = thetaU64Version(sU64)
qt.Assert(t, bitsToU64Array(s[:]), qt.DeepEquals, sU64[:])
qt.Assert(t, bitsToU64Array(s[:]), qt.DeepEquals,
[]uint64{26, 9, 13, 29, 47, 31, 14, 8, 22, 34, 16, 3, 3,
19, 37, 21, 24, 30, 12, 56, 14, 29, 25, 9, 51})
// compute again theta on the current state
s = theta(s)
sU64 = thetaU64Version(sU64)
qt.Assert(t, bitsToU64Array(s[:]), qt.DeepEquals, sU64[:])
}
func TestRhoPi(t *testing.T) {
s, sU64 := newS()
s = rhopi(s)
sU64 = rhopiU64Version(sU64)
qt.Assert(t, bitsToU64Array(s[:]), qt.DeepEquals, sU64[:])
qt.Assert(t, bitsToU64Array(s[:]), qt.DeepEquals,
[]uint64{0, 105553116266496, 105553116266496, 37748736, 393216,
805306368, 9437184, 80, 562949953421312, 13835058055282163714,
2, 448, 436207616, 4864, 5242880, 536870912, 343597383680,
11264, 557056, 1657324662872342528, 9223372036854775808,
288230376151711744, 7696581394432, 32985348833280, 84})
// compute again rhopi on the current state
s = rhopi(s)
sU64 = rhopiU64Version(sU64)
qt.Assert(t, bitsToU64Array(s[:]), qt.DeepEquals, sU64[:])
}