diff --git a/src/Services/VerifyDocuments.php b/src/Services/VerifyDocuments.php
index b11087d7..624687f9 100644
--- a/src/Services/VerifyDocuments.php
+++ b/src/Services/VerifyDocuments.php
@@ -51,9 +51,9 @@ public static function isValidEvidenceFile(array $files)
         $validSize = true;
         $total_size = 0;
 
-        $basic = (1024*1024);
-        $file_size = $basic*(self::$dispute_evidence_file_size);
-        $overall_size = $basic*(self::$dispute_evidences_size); 
+        $basic = (1024 * 1024);
+        $file_size = $basic * self::$dispute_evidence_file_size;
+        $overall_size = $basic * self::$dispute_evidences_size;
 
         foreach ($files as $file) {
             $mime_type = self::getMimeType($file);
diff --git a/tests/Feature/AdapterFeatureTest.php b/tests/Feature/AdapterFeatureTest.php
index bc52cbe9..a457425d 100644
--- a/tests/Feature/AdapterFeatureTest.php
+++ b/tests/Feature/AdapterFeatureTest.php
@@ -5,7 +5,6 @@
 use Carbon\Carbon;
 use PHPUnit\Framework\TestCase;
 use Srmklive\PayPal\Services\PayPal as PayPalClient;
-use Srmklive\PayPal\Services\VerifyDocuments;
 use Srmklive\PayPal\Tests\MockClientClasses;
 use Srmklive\PayPal\Tests\MockRequestPayloads;
 use Srmklive\PayPal\Tests\MockResponsePayloads;
@@ -349,9 +348,9 @@ public function it_can_provide_evidence_for_a_dispute_claim()
         );
 
         $mockFiles = [
-            __DIR__ . '/../Mocks/samples/sample.jpg',
-            __DIR__ . '/../Mocks/samples/sample.png',
-            __DIR__ . '/../Mocks/samples/sample.pdf',
+            __DIR__.'/../Mocks/samples/sample.jpg',
+            __DIR__.'/../Mocks/samples/sample.png',
+            __DIR__.'/../Mocks/samples/sample.pdf',
         ];
 
         $response = $this->client->provideDisputeEvidence(
@@ -378,8 +377,8 @@ public function it_throws_exception_if_invalid_file_as_evidence_is_provided_for_
         );
 
         $mockFiles = [
-            __DIR__ . '/../Mocks/samples/sample.txt',
-            __DIR__ . '/../Mocks/samples/sample.pdf',
+            __DIR__.'/../Mocks/samples/sample.txt',
+            __DIR__.'/../Mocks/samples/sample.pdf',
         ];
 
         $this->expectException(\Exception::class);
@@ -404,7 +403,7 @@ public function it_throws_exception_if_file_size_as_evidence_exceeds_per_file_li
             )
         );
 
-        $file = __DIR__ . '/../Mocks/samples/sample2.pdf';
+        $file = __DIR__.'/../Mocks/samples/sample2.pdf';
 
         $mockFiles = [$file];
 
@@ -430,7 +429,7 @@ public function it_throws_exception_if_file_size_as_evidence_exceeds_overall_lim
             )
         );
 
-        $file = __DIR__ . '/../Mocks/samples/sample2.pdf';
+        $file = __DIR__.'/../Mocks/samples/sample2.pdf';
 
         $mockFiles = [$file, $file, $file, $file, $file];
 
diff --git a/tests/MockClientClasses.php b/tests/MockClientClasses.php
index 08f76950..29a24e40 100644
--- a/tests/MockClientClasses.php
+++ b/tests/MockClientClasses.php
@@ -120,17 +120,4 @@ private function getApiCredentials(): array
             'validate_ssl'   => true,
         ];
     }
-
-    private function generateFile($path, $size)
-    {
-        $fh = fopen($path, 'w');
-
-        $size *= pow(1024, 2);
-        $chunk = 1024;
-        while ($size > 0) {
-           fputs($fh, str_pad('', min($chunk,$size)));
-           $size -= $chunk;
-        }
-        fclose($fh);
-    }
 }