Add example test

.gitignore

@@ -0,0 +1 @@
+vendor/

composer.json

@@ -13,5 +13,10 @@
         "psr-4": {
             "rafalswierczek\\NumeralSystem\\": "src/"
         }
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "rafalswierczek\\NumeralSystem\\Test\\": "test/"
+        }
     }
 }

test/GeneralTest.php

@@ -0,0 +1,39 @@
+<?php
+
+namespace rafalswierczek\NumeralSystem;
+
+require dirname(__DIR__).'/vendor/autoload.php';
+
+class GeneralTest
+{
+    public function testAllMethods()
+    {
+        $binary = random_bytes(4);
+
+        $hexStringBC = BinConverter::toHexString($binary);
+        $binaryStringHSC = HexStringConverter::toBinString($hexStringBC);
+        $hexStringBSC = BinStringConverter::toHexString($binaryStringHSC);
+        $intHSC = HexStringConverter::toInt($hexStringBSC);
+        $hexStringIC = IntConverter::toHexString($intHSC);
+        $binaryHSC = HexStringConverter::toBin($hexStringIC);
+        $binaryBSC = BinStringConverter::toBin($binaryStringHSC);
+        $binaryIC = IntConverter::toBin($intHSC);
+        $binaryStringIC = IntConverter::toBinString($intHSC);
+        $binaryStringBC = BinConverter::toBinString($binaryHSC);
+        $intBC = BinConverter::toInt($binaryIC);
+        $intBSC = BinStringConverter::toInt($binaryStringIC);
+
+        print_r(($binaryHSC === $binaryBSC && $binaryHSC === $binaryIC ? 'OK' : 'ERROR') . ' | binary: HSC === BSC === IC');
+        echo "\n";
+
+        print_r(($binaryStringBC === $binaryStringHSC && $binaryStringBC === $binaryStringIC ? 'OK' : 'ERROR') . ' | binary string: BC === HSC === IC');
+        echo "\n";
+
+        print_r(($hexStringBC === $hexStringBSC && $hexStringBC === $hexStringIC ? 'OK' : 'ERROR') . ' | hex string: BC === BSC === IC');
+        echo "\n";
+
+        print_r(($intBSC === $intHSC && $intBSC === $intBC ? 'OK' : 'ERROR') . ' | int: BSC === HSC === BC');
+    }
+}
+
+(new GeneralTest())->testAllMethods();