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<?php
 namespace Anzawi\FindDiff;
 
 use PHPUnit\Framework\TestCase;
 
 class HammingTest extends TestCase
 {
 protected string $firstString = "this is a test";
 protected string $secondString = "this is test";
 
 public  function testCalculate()
 {
 $hamming = Hamming::calculate($this->firstString, $this->secondString);
 $this->assertIsInt($hamming);
 $this->assertEquals(4, $hamming);
 }
 }
 
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