adjusting for less than 0 possibility

app/Helpers/Helper.php

@@ -350,6 +350,10 @@ class Helper
 
         if ($index >= $total_colors) {
             $index = $index - $total_colors - 1;
+
+            if($index < 0) {
+                $index = 0;
+            }
         }
 
         return $colors[$index];

tests/Feature/DefaultColorKeyTest.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace Tests\Feature;
+
+use Tests\TestCase;
+use App\Models\Statuslabel;
+use App\Models\Asset;
+
+class DefaultColorKeyTest extends TestCase
+{
+    public function DefaultColorKeyTest()
+    {
+        Statuslabel::factory()->hasAssets(1)->count(255)->create();
+
+        $this->defaultChartColors($index);
+
+        $this->assertArrayHasKey('index', ($index)[0]);
+
+
+    }
+}

tests/Feature/Reports/CustomReportTest.php

@@ -11,6 +11,7 @@ use PHPUnit\Framework\Assert;
 use Tests\Support\InteractsWithSettings;
 use Tests\TestCase;
 
+
 class CustomReportTest extends TestCase
 {
     use InteractsWithSettings;