220: Fix options validation

src/Plugin/migrate/process/DomStrReplace.php

@@ -84,9 +84,7 @@ class DomStrReplace extends DomProcessBase {
         'attribute' => [
           'attribute_options' => NULL,
         ],
-        'element' => [
-
-        ]
+        'element' => []
       ],
       'search' => NULL,
       'replace' => NULL,
@@ -104,7 +102,7 @@ class DomStrReplace extends DomProcessBase {
           sprintf(
             'Configuration option "%s" only accepts the following values: %s.',
             $option_name,
-            implode(', ', $possible_values)
+            implode(', ', array_keys($possible_values))
           )
         );
       }
@@ -118,7 +116,7 @@ class DomStrReplace extends DomProcessBase {
           "Configuration option '$option_name' is required for mode '$mode'."
         );
       }
-      if (is_null($possible_values) && !in_array($this->configuration[$option_name], $possible_values)) {
+      if (!is_null($possible_values) && !in_array($this->configuration[$option_name], $possible_values)) {
         throw new InvalidPluginDefinitionException(
           $this->getPluginId(),
           sprintf(