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104 lines
2.6 KiB
104 lines
2.6 KiB
package keccak
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import (
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"encoding/binary"
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"testing"
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qt "github.com/frankban/quicktest"
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)
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func TestUtilsBytesToBool(t *testing.T) {
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b := []byte{0, 1, 2, 3, 255, 254, 253}
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bits := bytesToBits(b)
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// for i := 0; i < len(b); i++ {
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// fmt.Println(i*8, i*8+8, b[i], bits[i*8:i*8+8])
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// }
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qt.Assert(t, bits[0:8], qt.DeepEquals,
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[]bool{false, false, false, false, false, false, false, false})
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qt.Assert(t, bits[8:16], qt.DeepEquals,
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[]bool{true, false, false, false, false, false, false, false})
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qt.Assert(t, bits[16:24], qt.DeepEquals,
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[]bool{false, true, false, false, false, false, false, false})
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qt.Assert(t, bits[24:32], qt.DeepEquals,
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[]bool{true, true, false, false, false, false, false, false})
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qt.Assert(t, bits[32:40], qt.DeepEquals,
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[]bool{true, true, true, true, true, true, true, true})
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qt.Assert(t, bits[40:48], qt.DeepEquals,
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[]bool{false, true, true, true, true, true, true, true})
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qt.Assert(t, bits[48:56], qt.DeepEquals,
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[]bool{true, false, true, true, true, true, true, true})
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}
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func TestUtilsBitsToBytes(t *testing.T) {
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b := []byte{0, 1, 2, 3, 255, 254, 253}
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bits := bytesToBits(b)
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b2 := bitsToBytes(bits)
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qt.Assert(t, b2, qt.DeepEquals, b)
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}
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func TestUtilsU64(t *testing.T) {
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u := uint64(100)
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b := make([]byte, 8)
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binary.LittleEndian.PutUint64(b, u)
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// toUint64
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// with bytes
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uRes := bytesToU64(b)
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qt.Assert(t, uRes, qt.Equals, u)
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// with bits
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uRes = bitsToU64(bytesToBits(b))
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qt.Assert(t, uRes, qt.Equals, u)
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// fromUint64
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// with bytes
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bRes := u64ToBytes(u)
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qt.Assert(t, bRes, qt.DeepEquals, b)
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// with bits
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bResBits := u64ToBits(u)
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qt.Assert(t, bResBits, qt.DeepEquals, bytesToBits(b))
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}
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func TestUtilsLeftShift(t *testing.T) {
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u := uint64(2)
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bits := u64ToBits(u)
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r := leftShift(bits, 1)
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qt.Assert(t, bitsToU64(r), qt.Equals, u<<1)
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u = uint64(9)
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bits = u64ToBits(u)
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r = leftShift(bits, 1)
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qt.Assert(t, bitsToU64(r), qt.Equals, u<<1)
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u = uint64(14)
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bits = u64ToBits(u)
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r = leftShift(bits, 63)
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qt.Assert(t, bitsToU64(r), qt.Equals, u<<63)
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u = uint64(123456)
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bits = u64ToBits(u)
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r = leftShift(bits, 1)
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qt.Assert(t, bitsToU64(r), qt.Equals, u<<1)
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}
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func TestUtilsRightShift(t *testing.T) {
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u := uint64(2)
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bits := u64ToBits(u)
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r := rightShift(bits, 1)
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qt.Assert(t, bitsToU64(r), qt.Equals, u>>1)
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u = uint64(9)
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bits = u64ToBits(u)
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r = rightShift(bits, 1)
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qt.Assert(t, bitsToU64(r), qt.Equals, u>>1)
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u = uint64(14)
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bits = u64ToBits(u)
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r = rightShift(bits, 63)
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qt.Assert(t, bitsToU64(r), qt.Equals, u>>63)
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u = uint64(123456)
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bits = u64ToBits(u)
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r = rightShift(bits, 1)
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qt.Assert(t, bitsToU64(r), qt.Equals, u>>1)
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}
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