Update phpunit config and file assertion

phpunit.xml

@@ -1,27 +1,18 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<phpunit backupGlobals="false"
-         backupStaticAttributes="false"
-         bootstrap="bootstrap/autoload.php"
-         colors="true"
-         convertErrorsToExceptions="true"
-         convertNoticesToExceptions="true"
-         convertWarningsToExceptions="true"
-         processIsolation="false"
-         stopOnFailure="false">
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" backupGlobals="false" backupStaticAttributes="false" bootstrap="bootstrap/autoload.php" colors="true" convertErrorsToExceptions="true" convertNoticesToExceptions="true" convertWarningsToExceptions="true" processIsolation="false" stopOnFailure="false" xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.3/phpunit.xsd">
+  <coverage processUncoveredFiles="true">
+    <include>
+      <directory suffix=".php">./app</directory>
+    </include>
+  </coverage>
   <testsuites>
     <testsuite name="Feature">
       <directory suffix="Test.php">./tests/Feature</directory>
     </testsuite>
-
     <testsuite name="Unit">
       <directory suffix="Test.php">./tests/Unit</directory>
     </testsuite>
   </testsuites>
-    <filter>
-        <whitelist processUncoveredFilesFromWhitelist="true">
-            <directory suffix=".php">./app</directory>
-        </whitelist>
-    </filter>
   <php>
     <env name="APP_ENV" value="testing"/>
     <env name="CACHE_DRIVER" value="array"/>

tests/Unit/Helpers/UserPhotoHelperTest.php

@@ -74,7 +74,7 @@ class UserPhotoHelperTest extends TestCase
 
         $this->assertFileExists(storage_path('app/public/images/user_photo_path.jpg'));
         unlink(storage_path('app/public/images/user_photo_path.jpg'));
-        $this->assertFileNotExists(storage_path('app/public/images/user_photo_path.jpg'));
+        $this->assertFileDoesNotExist(storage_path('app/public/images/user_photo_path.jpg'));
     }
 
     /** @test */