--- /dev/null
+<?php
+
+namespace Drupal\devel_dumper_test\Plugin\Devel\Dumper;
+
+use Drupal\devel\DevelDumperBase;
+
+/**
+ * Provides a NotAvailableTestDumper plugin.
+ *
+ * @DevelDumper(
+ * id = "not_available_test_dumper",
+ * label = @Translation("Not available test dumper."),
+ * description = @Translation("Drupal dumper for testing purposes (not available).")
+ * )
+ */
+class NotAvailableTestDumper extends DevelDumperBase {
+
+ /**
+ * {@inheritdoc}
+ */
+ public function dump($input, $name = NULL) {
+ $input = '<pre>' . $input . '</pre>';
+ echo $input;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function export($input, $name = NULL) {
+ $input = '<pre>' . $input . '</pre>';
+ return $this->setSafeMarkup($input);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public static function checkRequirements() {
+ return FALSE;
+ }
+
+}