Fixed the NULL values to prevent errors in str_replace() and hash().

Author: zepich

src/RequestHelper.php

@@ -68,6 +68,8 @@ public function prepareFormData(array $formData): array
             } else {
                 if (is_numeric($value)) {
                     $value = strval($value);
+                } else if ($value === null) {
+                    $value = '';
                 }
 
                 $data[$key] = hash('sha256', $value);
@@ -106,6 +108,10 @@ public function cleanupFormData(array $formData): array
             if (is_iterable($value)) {
                 $formData[$key] = $this->cleanupFormData($value);
             } else {
+                if ($value === null) {
+                    $value = '';
+                }
+
                 $formData[$key] = str_replace("\r\n", "\n", $value);
             }
         }

tests/RequestHelperTest.php

@@ -31,7 +31,8 @@ public function testPrepareFormData()
             'email[]' => [
                 '[email protected]'
             ],
-            'data' => []
+            'data' => [],
+            'website' => null,
         ];
 
         $targetArray = [
@@ -43,7 +44,8 @@ public function testPrepareFormData()
             'email' => [
                 '973dfe463ec85785f5f95af5ba3906eedb2d931c24e69824a89ea65dba4e813b'
             ],
-            'data' => []
+            'data' => [],
+            'website' => 'e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855',
         ];
 
         $this->assertEquals($targetArray, $requestHelper->prepareFormData($data));
@@ -65,7 +67,8 @@ public function testCleanupFormData()
             'email[]' => [
                 '[email protected]'
             ],
-            'data' => []
+            'data' => [],
+            'website' => null,
         ];
 
         $expectedData = [
@@ -79,6 +82,7 @@ public function testCleanupFormData()
             ],
             'name' => 'Test Tester',
             'valid' => false,
+            'website' => '',
         ];
 
         $this->assertEquals($expectedData, $requestHelper->cleanupFormData($data));
@@ -95,10 +99,11 @@ public function testToJson()
                 'number' => 123,
             ],
             'valid' => false,
-            'data' => []
+            'data' => [],
+            'email' => null,
         ];
 
-        $targetJson = '{"name":"Test Tester","address":{"street":"Teststreet","number":123},"valid":false,"data":{}}';
+        $targetJson = '{"name":"Test Tester","address":{"street":"Teststreet","number":123},"valid":false,"data":{},"email":null}';
 
         $this->assertEquals($targetJson, $requestHelper->toJson($data));
     }
@@ -114,9 +119,10 @@ public function testCreateFormDataHmacHash()
                 'number' => 123,
             ],
             'valid' => false,
-            'data' => []
+            'data' => [],
+            'email' => null,
         ];
 
-        $this->assertEquals('408f7cfd222dcf2369c8c1655df2f8de489858e23d9e100233a5b09e748fd360', $requestHelper->createFormDataHmacHash($data));
+        $this->assertEquals('fb1ae1d7aa9a506fdebc1641cd466f3b0fdefa62c835a43c8001a24913f8b735', $requestHelper->createFormDataHmacHash($data));
     }
 }