test(Employee): add unit tests for Employee entity

tests/Unit/Domain/Entities/EmployeeTest.php

@@ -0,0 +1,41 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Tests\Unit\Domain\Entities;
+
+use Domain\Models\Entities\Employee;
+use Domain\Models\ValueObjects\Entities\ArcadiaEmployeeId;
+use Domain\Models\ValueObjects\EstablishmentCode;
+use Domain\Models\ValueObjects\ServiceId;
+use Domain\Models\ValueObjects\SiteId;
+
+covers(Employee::class);
+
+describe('Employee Entity', function (): void {
+    it('can be instantiated and exposes its id', function (): void {
+        // GIVEN
+        $id  = new ArcadiaEmployeeId('12345678');
+        $now = new \DateTimeImmutable();
+
+        // WHEN
+        $employee = new Employee(
+            publicEmployeeNumber: $id,
+            lastName: 'Dupont',
+            firstName: 'Jean',
+            startDate: $now,
+            endDate: null,
+            plannedEndDate: null,
+            establishment: new EstablishmentCode('EST01'),
+            site: new SiteId('SITE'),
+            service: new ServiceId('097'),
+            createdAt: $now,
+            updatedAt: null,
+        );
+
+        // THEN
+        expect($employee->id())->toBe($id)
+            ->and($employee->lastName)->toBe('Dupont')
+            ->and($employee->firstName)->toBe('Jean');
+    });
+});