diff --git a/src/Plugin/Block/PDBlock.php b/src/Plugin/Block/PDBlock.php
index 7a17495c..16fdcb98 100644
--- a/src/Plugin/Block/PDBlock.php
+++ b/src/Plugin/Block/PDBlock.php
@@ -17,6 +17,8 @@ class PDBlock extends PdbBlock {
 
   /**
    * {@inheritDoc}
+   *
+   * @codeCoverageIgnore
    */
   public function attachLibraries(array $component) {
     return ['library' => parent::attachLibraries($component)];
diff --git a/src/Plugin/search_api/processor/CustomValue.php b/src/Plugin/search_api/processor/CustomValue.php
index 23c0b58f..0af441b9 100644
--- a/src/Plugin/search_api/processor/CustomValue.php
+++ b/src/Plugin/search_api/processor/CustomValue.php
@@ -16,7 +16,7 @@ class CustomValue extends SearchApiCustomValue {
   /**
    * {@inheritdoc}
    */
-  function getPropertyDefinitions(DatasourceInterface $datasource = NULL) {
+  public function getPropertyDefinitions(DatasourceInterface $datasource = NULL) {
     $properties = [];
 
     if (!$datasource) {
@@ -56,7 +56,7 @@ public function addFieldValues(ItemInterface $item) {
         continue;
       }
 
-      $field_value = $token->replace($config['value'], $data, ['clear' => TRUE]);
+      $field_value = trim($token->replace($config['value'], $data, ['clear' => TRUE]));
       if ($field_value !== '') {
         $field->addValue($field_value);
       }
diff --git a/src/Plugin/search_api/processor/RemoveTags.php b/src/Plugin/search_api/processor/RemoveTags.php
index a3024e2e..5eb49d4f 100644
--- a/src/Plugin/search_api/processor/RemoveTags.php
+++ b/src/Plugin/search_api/processor/RemoveTags.php
@@ -6,11 +6,13 @@
 use Drupal\search_api\Processor\FieldsProcessorPluginBase;
 
 /**
+ * Search API processor to remove only the desired html tags.
+ *
  * @SearchApiProcessor(
  *    id = "remove_tags",
  *    label = @Translation("Remove Specific HTML Tags"),
- *    description = @Translation("Similiar to 'strip_tags', but choose only
- *   which tags to strip from fields."), stages = {
+ *    description = @Translation("Similiar to 'strip_tags', but choose only which tags to strip from fields."),
+ *    stages = {
  *      "preprocess_index" = 0,
  *    }
  *  )
@@ -70,9 +72,9 @@ protected function processFieldValue(&$value, $type) {
     $text = trim(preg_replace('/<!--(.*)-->/Uis', '', $text));
 
     preg_match_all('/<(\w+)/', $text, $tags_matched);
-    $text_tags = $tags_matched[1];
+    $text_tags = $tags_matched[1] ?? [];
     $keep_tags = array_diff($text_tags, $this->configuration['tags']);
-    $value = strip_tags($text, $keep_tags);
+    $value = trim(strip_tags($text, $keep_tags));
   }
 
 }
diff --git a/tests/src/Kernel/Plugin/search_api/processor/CustomValueTest.php b/tests/src/Kernel/Plugin/search_api/processor/CustomValueTest.php
new file mode 100644
index 00000000..72ba8647
--- /dev/null
+++ b/tests/src/Kernel/Plugin/search_api/processor/CustomValueTest.php
@@ -0,0 +1,38 @@
+<?php
+
+namespace Drupal\Tests\stanford_profile_helper\Kernel\Plugin\search_api\processor;
+
+use Drupal\Tests\search_api\Kernel\Processor\CustomValueTest as SearchApiCustomValueTest;
+
+/**
+ * @coversDefaultClass \Drupal\stanford_profile_helper\Plugin\search_api\processor\CustomValue
+ */
+class CustomValueTest extends SearchApiCustomValueTest {
+
+  /**
+   * {@inheritdoc}
+   */
+  protected static $modules = [
+    'user',
+    'node',
+    'field',
+    'search_api',
+    'search_api_db',
+    'search_api_test',
+    'comment',
+    'text',
+    'action',
+    'system',
+    'stanford_profile_helper',
+    'rabbit_hole',
+    'config_pages',
+  ];
+
+  public function testPlugin() {
+    /** @var \Drupal\search_api\Processor\ProcessorPluginManager $plugin_manager */
+    $plugin_manager = \Drupal::service('plugin.manager.search_api.processor');
+    $plugin = $plugin_manager->createInstance('custom_value');
+    $this->assertInstanceOf('\Drupal\stanford_profile_helper\Plugin\search_api\processor\CustomValue', $plugin);
+  }
+
+}
diff --git a/tests/src/Unit/Plugin/Next/PreviewUrlGenerator/SimplePreviewTest.php b/tests/src/Unit/Plugin/Next/PreviewUrlGenerator/SimplePreviewTest.php
new file mode 100644
index 00000000..efbf088a
--- /dev/null
+++ b/tests/src/Unit/Plugin/Next/PreviewUrlGenerator/SimplePreviewTest.php
@@ -0,0 +1,54 @@
+<?php
+
+namespace Drupal\Tests\stanford_profile_helper\Unit\Plugin\Next\PreviewUrlGenerator;
+
+use Drupal\Component\Datetime\TimeInterface;
+use Drupal\Core\DependencyInjection\ContainerBuilder;
+use Drupal\Core\Entity\EntityInterface;
+use Drupal\Core\Entity\EntityTypeManagerInterface;
+use Drupal\Core\Path\PathValidatorInterface;
+use Drupal\Core\PathProcessor\OutboundPathProcessorInterface;
+use Drupal\Core\Session\AccountProxyInterface;
+use Drupal\Core\Url;
+use Drupal\Core\Utility\UnroutedUrlAssembler;
+use Drupal\next\Entity\NextSiteInterface;
+use Drupal\next\PreviewSecretGeneratorInterface;
+use Drupal\stanford_profile_helper\Plugin\Next\PreviewUrlGenerator\SimplePreview;
+use Drupal\Tests\UnitTestCase;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\RequestStack;
+
+class SimplePreviewTest extends UnitTestCase {
+
+  public function testGenerator() {
+    $container = new ContainerBuilder();
+    $container->set('current_user', $this->createMock(AccountProxyInterface::class));
+    $container->set('datetime.time', $this->createMock(TimeInterface::class));
+    $container->set('next.preview_secret_generator', $this->createMock(PreviewSecretGeneratorInterface::class));
+    $container->set('entity_type.manager', $this->createMock(EntityTypeManagerInterface::class));
+    $container->set('path.validator', $this->createMock(PathValidatorInterface::class));
+    $container->set('unrouted_url_assembler', $this->getUrlAssembler());
+    \Drupal::setContainer($container);
+
+    $plugin = SimplePreview::create($container, [], '', []);
+
+    $site = $this->createMock(NextSiteInterface::class);
+    $site->method('getPreviewUrl')->willReturn('http://example.test/foo/bar');
+    $site->method('getPreviewSecret')->willReturn('baz');
+
+    $entity_url = Url::fromUserInput('/bar/foo');
+    $entity = $this->createMock(EntityInterface::class);
+    $entity->method('toUrl')->willReturn($entity_url);
+
+    $url = $plugin->generate($site, $entity)->toString();
+    $this->assertEquals('http://example.test/foo/bar?slug=/bar/foo&secret=baz', $url);
+  }
+
+  protected function getUrlAssembler() {
+    $request_stack = new RequestStack();
+    $request_stack->push(new Request());
+    $path_processor = $this->createMock(OutboundPathProcessorInterface::class);
+    return new UnroutedUrlAssembler($request_stack, $path_processor);
+  }
+
+}
diff --git a/tests/src/Unit/Plugin/search_api/processor/RemoveTagsTest.php b/tests/src/Unit/Plugin/search_api/processor/RemoveTagsTest.php
new file mode 100644
index 00000000..302afec4
--- /dev/null
+++ b/tests/src/Unit/Plugin/search_api/processor/RemoveTagsTest.php
@@ -0,0 +1,68 @@
+<?php
+
+namespace Drupal\Tests\stanford_profile_helper\Unit\search_api\processor;
+
+use Drupal\Core\DependencyInjection\ContainerBuilder;
+use Drupal\Core\Form\FormState;
+use Drupal\Core\Render\ElementInfoManagerInterface;
+use Drupal\search_api\IndexInterface;
+use Drupal\search_api\Utility\DataTypeHelperInterface;
+use Drupal\search_api\Utility\FieldsHelperInterface;
+use Drupal\stanford_profile_helper\Plugin\search_api\processor\RemoveTags;
+use Drupal\Tests\UnitTestCase;
+
+class RemoveTagsTest extends UnitTestCase {
+
+  /**
+   * @var \Drupal\stanford_profile_helper\Plugin\search_api\processor\RemoveTags
+   */
+  protected $plugin;
+
+  protected function setUp(): void {
+    parent::setUp();
+    $container = new ContainerBuilder();
+    $container->set('string_translation', $this->getStringTranslationStub());
+    $container->set('search_api.fields_helper', $this->createMock(FieldsHelperInterface::class));
+    $container->set('search_api.data_type_helper', $this->createMock(DataTypeHelperInterface::class));
+    $container->set('plugin.manager.element_info', $this->createMock(ElementInfoManagerInterface::class));
+
+    $this->plugin = TestRemoveTags::create($container, [], '', []);
+    $index = $this->createMock(IndexInterface::class);
+    $index->method('getFields')->willReturn([]);
+    $this->plugin->setIndex($index);
+  }
+
+  public function testFieldProcessorForm() {
+    $this->assertContains('div', $this->plugin->defaultConfiguration()['tags']);
+
+    $form = [];
+    $form_state = new FormState();
+    $form = $this->plugin->buildConfigurationForm($form, $form_state);
+    $this->assertArrayHasKey('tags', $form);
+    $form['tags']['#parents'] = [];
+
+    $form_state->setValue('tags', "foo\n bar \nbaz");
+    $this->plugin->validateConfigurationForm($form, $form_state);
+    $this->assertEquals(['foo', 'bar', 'baz'], $form_state->getValue(['tags']));
+    $this->assertFalse($form_state::hasAnyErrors());
+
+    $form_state->setValue('tags', "foo bar\n baz");
+    $this->plugin->validateConfigurationForm($form, $form_state);
+    $this->assertTrue($form_state::hasAnyErrors());
+  }
+
+  public function testFieldProcessor() {
+    $value = '<div>foo bar<p>baz</p></div>';
+    $this->plugin->processFieldValue($value, '');
+    $this->assertEquals('foo bar<p>baz</p>', $value);
+  }
+
+}
+
+class TestRemoveTags extends RemoveTags {
+
+  public function processFieldValue(&$value, $type) {
+    return parent::processFieldValue($value, $type);
+  }
+
+}