prevent infinite loop on invalid non-interactive input

Author: igneus

features/non-interactive.feature

@@ -28,3 +28,16 @@ Feature: It is possible to interactively fill in a form from the CLI
     Options:
      --password
     """
+
+  Scenario: Provide invalid value
+    When I run the command "form:color --color='invalid color'" non-interactively
+    Then the command was not successful
+    And the output should contain
+    """
+    Invalid data provided: color:
+      ERROR: This value is not valid.
+    """
+    And the output should contain
+    """
+    There were form errors.
+    """

src/Console/Helper/FormHelper.php

@@ -90,6 +90,10 @@ function (FormInterface $formField) use (&$validFormFields) {
                     },
                     $form->all()
                 );
+
+                if (!$input->isInteractive()) {
+                    throw new \RuntimeException('There were form errors.');
+                }
             }
         } while (!$form->isValid());