adds test for dividend sync

tests/DividendsTest.php

@@ -2,7 +2,13 @@
 
 namespace Tests;
 
+use App\Models\Dividend;
 use Tests\TestCase;
+use App\Models\User;
+use App\Models\Split;
+use App\Models\Holding;
+use App\Models\Portfolio;
+use App\Models\Transaction;
 use Illuminate\Foundation\Testing\RefreshDatabase;
 
 class DividendsTest extends TestCase
@@ -11,8 +17,21 @@ class DividendsTest extends TestCase
 
     /**
      */
-    public function test_user_has_dashboard_metrics(): void
+    public function test_new_dividends_update_holding(): void
     {
-        //
+        $this->actingAs($user = User::factory()->create());
+        
+        $portfolio = Portfolio::factory()->create();
+        Transaction::factory()->buy()->yearsAgo()->portfolio($portfolio->id)->symbol('ACME')->create();
+
+        $holding = Holding::query()->portfolio($portfolio->id)->symbol('ACME')->first();
+        
+        $this->assertEquals(0, $holding->dividends_earned);
+
+        Dividend::refreshDividendData('ACME');
+
+        $holding->refresh();
+
+        $this->assertEquals(4.95, $holding->dividends_earned);
     }
 }