Update the error_code_from method to grab and alpha_numeric characters

Spreedly ref: ECS-3536

lib/active_merchant/billing/gateways/adyen.rb

@@ -903,7 +903,10 @@ def post_data(action, parameters = {})
       end
 
       def error_code_from(response)
-        response.dig('additionalData', 'refusalReasonRaw').try(:scan, /^\d+/).try(:first) || STANDARD_ERROR_CODE_MAPPING[response['errorCode']] || response['errorCode'] || response['refusalReason']
+        response.dig('additionalData', 'refusalReasonRaw').try(:match, /^([a-zA-Z0-9 ]{1,5})(?=:)/).try(:[], 1).try(:strip) ||
+          STANDARD_ERROR_CODE_MAPPING[response['errorCode']] ||
+          response['errorCode'] ||
+          response['refusalReason']
       end
 
       def network_transaction_id_from(response)

test/unit/gateways/adyen_test.rb

@@ -350,6 +350,16 @@ def test_failed_authorise_visa
     response = @gateway.send(:commit, 'authorise', {}, {})
 
     assert_equal 'Refused | 01: Refer to card issuer', response.message
+    assert_equal '01', response.error_code
+    assert_failure response
+  end
+
+  def test_failed_fraud_raw_refusal
+    @gateway.expects(:ssl_post).returns(failed_fraud_visa_response)
+
+    response = @gateway.send(:commit, 'authorise', {}, {})
+
+    assert_equal 'N7', response.error_code
     assert_failure response
   end
 
@@ -359,6 +369,7 @@ def test_failed_authorise_mastercard
     response = @gateway.send(:commit, 'authorise', {}, {})
 
     assert_equal 'Refused | 01 : New account information available', response.message
+    assert_equal '01', response.error_code
     assert_failure response
   end
 
@@ -1916,6 +1927,20 @@ def failed_authorize_visa_response
     RESPONSE
   end
 
+  def failed_fraud_visa_response
+    <<-RESPONSE
+    {
+      "additionalData":
+      {
+        "refusalReasonRaw": "N7 : FRAUD"
+       },
+       "refusalReason": "Refused",
+       "pspReference":"8514775559925128",
+       "resultCode":"Refused"
+     }
+    RESPONSE
+  end
+
   def failed_without_raw_refusal_reason
     <<-RESPONSE
     {