File: test/unit/Structure/BlockChainTest.php

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File: test/unit/Structure/BlockChainTest.php
Role: Unit test script
Content type: text/plain
Description: Unit test script
Class: Halite
Perform cryptography operations with libsodium
Author: By
Last change:
Date: 5 years ago
Size: 2,032 bytes
 

 

Contents

Class file image Download
<?php
declare(strict_types=1);

use \
ParagonIE\Halite\Structure\{
   
BlockChain,
   
MerkleTree,
   
Node
};

/**
 * @backupGlobals disabled
 * @backupStaticAttributes disabled
 */
class BlockChainTest extends PHPUnit_Framework_TestCase
{
    public function
testChain()
    {
       
$trees = [
            new
MerkleTree(
                new
Node('418 i am a little teapot'),
                new
Node('yellow submarine'),
                new
Node('paragon initiative enterprises'),
                new
Node('application security')
            ),
            new
MerkleTree(
                new
Node('cryptography'),
                new
Node('engineering'),
                new
Node('for complete noobcakes')
            ),
            new
MerkleTree(
                new
Node('418 i am a little teapot'),
                new
Node('yellow submarine'),
                new
Node('paragon initiative enterprises'),
                new
Node('application security'),
                new
Node('cryptography'),
                new
Node('engineering'),
                new
Node('for complete noobcakes')
            )
        ];
       
$begin = \Sodium\crypto_generichash('GENESIS BLOCK');
       
$bc1 = new BlockChain($begin, $trees[0]);
       
$bc2 = new BlockChain($bc1->getHash(true), $trees[1]);
       
$bc3 = new BlockChain($begin, $trees[0], $trees[1]);
       
$bc4 = new BlockChain($begin, $trees[2]);

       
$treeTest = $trees[0]->getExpandedTree(
            new
Node('cryptography'),
            new
Node('engineering'),
            new
Node('for complete noobcakes')
        );
       
$bc5 = new BlockChain($begin, $treeTest);

       
// The output of one block feeding into the next should match:
       
$this->assertEquals($bc2->getHash(), $bc3->getHash());

       
// We shouldn't allow blocks to be appeneded:
       
$this->assertNotEquals($bc3->getHash(), $bc4->getHash());

       
// However, if we create a new block, it should be OK:
       
$this->assertEquals($bc4->getHash(), $bc5->getHash());
    }
}


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