erigon-pulse/trie/intermediate_hashes_test.go

38 lines
887 B
Go

package trie
import (
"fmt"
"strconv"
"testing"
"github.com/ledgerwatch/turbo-geth/common"
"github.com/stretchr/testify/assert"
)
func TestCompressNibbles(t *testing.T) {
cases := []struct {
in string
expect string
}{
{in: "0000", expect: "00"},
{in: "0102", expect: "12"},
{in: "0102030405060708090f", expect: "123456789f"},
{in: "0f000101", expect: "f011"},
{in: "", expect: ""},
}
compressed := make([]byte, 64)
decompressed := make([]byte, 64)
for _, tc := range cases {
compressed = compressed[:0]
decompressed = decompressed[:0]
in := common.Hex2Bytes(tc.in)
CompressNibbles(in, &compressed)
msg := "On: " + tc.in + " Len: " + strconv.Itoa(len(compressed))
assert.Equal(t, tc.expect, fmt.Sprintf("%x", compressed), msg)
DecompressNibbles(compressed, &decompressed)
assert.Equal(t, tc.in, fmt.Sprintf("%x", decompressed), msg)
}
}