🚀 مُصادَق: تحديث برمجي جديد 2026-05-03 13:45

tests/Unit/TaxValidationTest.php

@@ -0,0 +1,51 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Tests\Unit;
+
+use PHPUnit\Framework\TestCase;
+use App\Services\TaxValidationService;
+
+final class TaxValidationTest extends TestCase
+{
+    private TaxValidationService $service;
+
+    protected function setUp(): void
+    {
+        $this->service = new TaxValidationService();
+    }
+
+    public function test_it_validates_standard_invoice(): void
+    {
+        $data = [
+            'invoice_type' => '001', // Standard
+            'total_tax_exclusive_amount' => 100,
+            'total_tax_amount' => 16,
+            'grand_total' => 116,
+            'tax_items' => [
+                ['tax_percent' => 16, 'tax_amount' => 16, 'taxable_amount' => 100]
+            ]
+        ];
+
+        $result = $this->service->validate($data);
+        $this->assertTrue($result['is_valid']);
+    }
+
+    public function test_it_detects_mismatching_totals(): void
+    {
+        $data = [
+            'invoice_type' => '001',
+            'total_tax_exclusive_amount' => 100,
+            'total_tax_amount' => 16,
+            'grand_total' => 110, // Error: should be 116
+            'tax_items' => [
+                ['tax_percent' => 16, 'tax_amount' => 16, 'taxable_amount' => 100]
+            ]
+        ];
+
+        $result = $this->service->validate($data);
+        $this->assertFalse($result['is_valid']);
+        $this->assertContains('Grand total mismatch', $result['errors']);
+    }
+}