feat: validation expectations (#1762)

* feat: add validation expectations for IP, MAC, hostname, domain, base64, and hexadecimal

* improvements

* improvements

tests/Features/Expect/toBeMacAddress.php

@@ -0,0 +1,28 @@
+<?php
+
+declare(strict_types=1);
+
+use Pest\Exceptions\InvalidExpectationValue;
+use PHPUnit\Framework\ExpectationFailedException;
+
+test('pass', function (): void {
+    expect('00:1a:2b:3c:4d:5e')->toBeMacAddress() // colon-separated
+        ->and('00-1a-2b-3c-4d-5e')->toBeMacAddress() // hyphen-separated
+        ->and('ff:ff:ff:ff:ff:ff')->toBeMacAddress();
+});
+
+test('failures', function (): void {
+    expect('not-a-mac')->toBeMacAddress();
+})->throws(ExpectationFailedException::class);
+
+test('failures with invalid type', function (): void {
+    expect([])->toBeMacAddress();
+})->throws(InvalidExpectationValue::class, 'Invalid expectation value type. Expected [string].');
+
+test('failures with custom message', function (): void {
+    expect('not-a-mac')->toBeMacAddress('oh no!');
+})->throws(ExpectationFailedException::class, 'oh no!');
+
+test('not failures', function (): void {
+    expect('00:1a:2b:3c:4d:5e')->not->toBeMacAddress();
+})->throws(ExpectationFailedException::class);