feat(event): add EventDateInfoFormatter to format event date messages and implement related tests

tests/Unit/Event/EventDateInfoFormatterTest.php

@@ -0,0 +1,51 @@
+<?php
+
+namespace Tests\Unit\Event;
+
+use App\Domains\Event\Enums\EventDateChangeType;
+use App\Domains\Event\Models\EventDate;
+use App\Domains\Event\Models\EventDateChange;
+use App\Domains\Event\Services\EventDateInfoFormatter;
+use Illuminate\Support\Carbon;
+use Tests\TestCase;
+
+class EventDateInfoFormatterTest extends TestCase
+{
+    public function test_it_returns_null_for_a_date_without_changes(): void
+    {
+        $date = new EventDate;
+        $date->id = 10;
+
+        $this->assertNull((new EventDateInfoFormatter)->format($date, collect()));
+    }
+
+    public function test_it_formats_cancellation_and_source_dates_for_a_reschedule_destination(): void
+    {
+        $date = new EventDate;
+        $date->id = 20;
+        $date->suspended_at = Carbon::parse('2026-09-15');
+
+        $changes = collect([
+            $this->reschedule(1, 20, '2026-10-09'),
+            $this->reschedule(2, 20, '2026-10-10'),
+        ]);
+
+        $this->assertSame(
+            'Esta fecha fue cancelada. 09/10/2026 y 10/10/2026 se reprogramaron para este día.',
+            (new EventDateInfoFormatter)->format($date, $changes),
+        );
+    }
+
+    private function reschedule(int $sourceId, int $destinationId, string $previousDate): EventDateChange
+    {
+        $change = new EventDateChange;
+        $change->setRawAttributes([
+            'change_type' => EventDateChangeType::Rescheduled->value,
+            'source_event_date_id' => $sourceId,
+            'destination_event_date_id' => $destinationId,
+            'previous_date' => $previousDate,
+        ]);
+
+        return $change;
+    }
+}