Feature/Added unit test for String Value Object

Author: othercodes

tests/ValueObjects/StringValueTest.php

@@ -0,0 +1,63 @@
+<?php
+
+declare(strict_types=1);
+
+use ComplexHeart\Domain\Model\Exceptions\InvariantViolation;
+use ComplexHeart\Domain\Model\ValueObjects\StringValue;
+
+
+final class ProductName extends StringValue
+{
+    protected int $_maxLength = 30;
+    protected int $_minLength = 3;
+
+    protected function invariantMustStartWithStringProduct(): bool
+    {
+        if (strpos($this->value(), 'PR') !== 0) {
+            throw new InvariantViolation('Product Name must start with PR chars');
+        }
+
+        return true;
+    }
+}
+
+test('Should create a valid Value Object.', function () {
+    $vo = new ProductName('PR sample');
+    expect($vo)->toEqual('PR sample');
+    expect((string)$vo)->toEqual('PR sample');
+})->group('Unit');
+
+test('Should return true on equal ValueObjects.', function () {
+    $vo = new ProductName('PR sample');
+    expect($vo->equals(new ProductName('PR sample')))->toBeTrue();
+})->group('Unit');
+
+test('Should return false on not equal ValueObjects.', function () {
+    $vo = new ProductName('PR sample');
+    expect($vo->equals(new ProductName('PR diff')))->toBeFalse();
+})->group('Unit');
+
+test('Should throw exception on min length invariant violation.', function () {
+    new class('a') extends StringValue {
+        protected int $_minLength = 5;
+    };
+
+})
+    ->throws(InvariantViolation::class)
+    ->group('Unit');
+
+test('Should throw exception on max length invariant violation.', function () {
+    new class('this is long') extends StringValue {
+        protected int $_maxLength = 5;
+    };
+})
+    ->throws(InvariantViolation::class)
+    ->group('Unit');
+
+test('Should throw exception on regex invariant violation.', function () {
+    new class('INVALID') extends StringValue {
+        protected string $_pattern = '[a-z]';
+    };
+})
+    ->throws(InvariantViolation::class)
+    ->group('Unit');