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