Stabilize discovery workflow

tests/Inventory/MergeSuggestionServiceTest.php

@@ -0,0 +1,59 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Domovoy\Tests\Inventory;
+
+use Domovoy\Models\Device;
+use Domovoy\Models\DiscoveredHost;
+use Domovoy\Repositories\DeviceRepository;
+use Domovoy\Services\Inventory\MergeSuggestionService;
+use PHPUnit\Framework\TestCase;
+
+final class MergeSuggestionServiceTest extends TestCase
+{
+    public function testSuggestsDeviceByIpWhenMacAndHostnameDoNotMatch(): void
+    {
+        $device = new Device();
+        $device->id = 10;
+        $device->name = 'router';
+        $device->primaryIp = '192.168.1.1';
+
+        $repository = new FakeDeviceRepository(ipMatch: $device);
+        $service = new MergeSuggestionService($repository);
+
+        $host = new DiscoveredHost();
+        $host->ipAddress = '192.168.1.1';
+
+        $suggestions = $service->findSuggestions($host);
+
+        self::assertSame($device, $suggestions[0]['device']);
+        self::assertSame(40, $suggestions[0]['confidence']);
+        self::assertSame('IP адрес совпадает', $suggestions[0]['reason']);
+    }
+}
+
+final class FakeDeviceRepository extends DeviceRepository
+{
+    public function __construct(
+        private ?Device $macMatch = null,
+        private ?Device $nameMatch = null,
+        private ?Device $ipMatch = null
+    ) {
+    }
+
+    public function findByMac(string $macAddress): ?Device
+    {
+        return $this->macMatch;
+    }
+
+    public function findByName(string $name): ?Device
+    {
+        return $this->nameMatch;
+    }
+
+    public function findByIp(string $ipAddress): ?Device
+    {
+        return $this->ipMatch;
+    }
+}