mirror of
https://github.com/FlipsideCrypto/dcrd.git
synced 2026-02-06 10:56:47 +00:00
e2232a5c3d
These functions and associated tests are being removed because nothing depends on them and they end up creating a dependency on blockchain/stake package, which is not desirable.
82 lines
2.6 KiB
Go
82 lines
2.6 KiB
Go
// Copyright (c) 2016 The Decred developers
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// Use of this source code is governed by an ISC
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// license that can be found in the LICENSE file.
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package dcrjson
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import (
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"encoding/hex"
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"strings"
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"testing"
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"github.com/decred/dcrd/chaincfg/chainhash"
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)
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func decodeHash(reversedHash string) chainhash.Hash {
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h, err := chainhash.NewHashFromStr(reversedHash)
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if err != nil {
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panic(err)
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}
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return *h
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}
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func TestEncodeConcatenatedHashes(t *testing.T) {
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// Input Hash slice. Data taken from Decred's first three mainnet blocks.
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hashSlice := []chainhash.Hash{
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decodeHash("298e5cc3d985bfe7f81dc135f360abe089edd4396b86d2de66b0cef42b21d980"),
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decodeHash("000000000000437482b6d47f82f374cde539440ddb108b0a76886f0d87d126b9"),
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decodeHash("000000000000c41019872ff7db8fd2e9bfa05f42d3f8fee8e895e8c1e5b8dcba"),
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}
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hashLen := hex.EncodedLen(len(hashSlice[0]))
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// Expected output. The string representations of the underlying byte arrays
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// in the input []chainhash.Hash
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blockHashes := []string{
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"80d9212bf4ceb066ded2866b39d4ed89e0ab60f335c11df8e7bf85d9c35c8e29",
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"b926d1870d6f88760a8b10db0d4439e5cd74f3827fd4b6827443000000000000",
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"badcb8e5c1e895e8e8fef8d3425fa0bfe9d28fdbf72f871910c4000000000000",
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}
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concatenatedHashes := strings.Join(blockHashes, "")
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// Test from 0 to N of the hashes
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for j := 0; j < len(hashSlice)+1; j++ {
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// Expected output string
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concatRef := concatenatedHashes[:j*hashLen]
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// Encode to string
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concatenated := EncodeConcatenatedHashes(hashSlice[:j])
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// Verify output
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if concatenated != concatRef {
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t.Fatalf("EncodeConcatenatedHashes failed (%v!=%v)",
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concatenated, concatRef)
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}
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}
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}
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func TestDecodeConcatenatedHashes(t *testing.T) {
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// Test data taken from Decred's first three mainnet blocks
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testHashes := []chainhash.Hash{
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decodeHash("298e5cc3d985bfe7f81dc135f360abe089edd4396b86d2de66b0cef42b21d980"),
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decodeHash("000000000000437482b6d47f82f374cde539440ddb108b0a76886f0d87d126b9"),
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decodeHash("000000000000c41019872ff7db8fd2e9bfa05f42d3f8fee8e895e8c1e5b8dcba"),
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}
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var concatenatedHashBytes []byte
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for _, h := range testHashes {
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concatenatedHashBytes = append(concatenatedHashBytes, h[:]...)
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}
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concatenatedHashes := hex.EncodeToString(concatenatedHashBytes)
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decodedHashes, err := DecodeConcatenatedHashes(concatenatedHashes)
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if err != nil {
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t.Fatalf("Decode failed: %v", err)
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}
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if len(testHashes) != len(decodedHashes) {
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t.Fatalf("Got wrong number of decoded hashes (%v)", len(decodedHashes))
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}
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for i, expected := range testHashes {
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if expected != decodedHashes[i] {
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t.Fatalf("Decoded hash %d `%v` does not match expected `%v`",
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i, decodedHashes[i], expected)
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}
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}
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}
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