[TASK] Process feedback and fix unit-tests

Classes/Connection/Elasticsearch/MappingFactory.php

@@ -55,10 +55,6 @@ class MappingFactory implements Singleton
         $mapping->setType($type);
 
         $configuration = $this->getConfiguration($type->getName());
-        if (isset($configuration['_all'])) {
-            $mapping->setAllField($configuration['_all']);
-            unset($configuration['_all']);
-        }
         $mapping->setProperties($configuration);
 
         return $mapping;

Classes/Domain/Model/SearchRequest.php

@@ -25,6 +25,7 @@ use Codappix\SearchCore\Connection\ConnectionInterface;
 use Codappix\SearchCore\Connection\FacetRequestInterface;
 use Codappix\SearchCore\Connection\SearchRequestInterface;
 use Codappix\SearchCore\Domain\Search\SearchService;
+use Codappix\SearchCore\Utility\ArrayUtility as CustomArrayUtility;
 use TYPO3\CMS\Core\Utility\ArrayUtility;
 
 /**
@@ -101,7 +102,7 @@ class SearchRequest implements SearchRequestInterface
     public function setFilter(array $filter)
     {
         $filter = ArrayUtility::removeArrayEntryByValue($filter, '');
-        $this->filter = ArrayUtility::removeNullValuesRecursive($filter);
+        $this->filter = CustomArrayUtility::removeEmptyElementsRecursively($filter);
     }
 
     /**

Classes/Domain/Search/QueryFactory.php

@@ -124,9 +124,11 @@ class QueryFactory
             'query' => $searchRequest->getSearchTerm(),
         ];
 
-        $fieldsToQuery = GeneralUtility::trimExplode(',', $this->configuration->getIfExists('searching.fields.query'), true);
-        if (!empty($fieldsToQuery)) {
+        try {
+            $fieldsToQuery = GeneralUtility::trimExplode(',', $this->configuration->get('searching.fields.query'), true);
             $matchExpression['fields'] = $fieldsToQuery;
+        } catch (InvalidArgumentException $e) {
+            // Nothing configured
         }
 
         $minimumShouldMatch = $this->configuration->getIfExists('searching.minimumShouldMatch');

Classes/Utility/ArrayUtility.php

@@ -0,0 +1,35 @@
+<?php
+
+namespace Codappix\SearchCore\Utility;
+
+/**
+ * Utility: Array
+ * @package Codappix\SearchCore\Utility
+ */
+class ArrayUtility
+{
+
+    /**
+     * Recursively removes empty array elements.
+     *
+     * @param array $array
+     * @return array the modified array
+     * @see \TYPO3\CMS\Extbase\Utility\ArrayUtility::removeEmptyElementsRecursively Removed in TYPO3 v9
+     */
+    public static function removeEmptyElementsRecursively(array $array): array
+    {
+        $result = $array;
+        foreach ($result as $key => $value) {
+            if (is_array($value)) {
+                $result[$key] = self::removeEmptyElementsRecursively($value);
+                if ($result[$key] === []) {
+                    unset($result[$key]);
+                }
+            } elseif ($value === null) {
+                unset($result[$key]);
+            }
+        }
+        return $result;
+    }
+
+}

Tests/Unit/Connection/Elasticsearch/MappingFactoryTest.php

@@ -46,10 +46,6 @@ class MappingFactoryTest extends AbstractUnitTestCase
     {
         $indexName = 'someIndex';
         $configuration = [
-            '_all' => [
-                'type' => 'text',
-                'analyzer' => 'ngram4',
-            ],
             'channel' => [
                 'type' => 'keyword',
             ],
@@ -64,16 +60,8 @@ class MappingFactoryTest extends AbstractUnitTestCase
             ->method('get')
             ->with('indexing.' . $indexName . '.mapping')
             ->willReturn($configuration);
-
         $mapping = $this->subject->getMapping($type)->toArray()[$indexName];
-        $this->assertArraySubset(
-            [
-                '_all' => $configuration['_all']
-            ],
-            $mapping,
-            true,
-            'Configuration of _all field was not set for mapping.'
-        );
+
         $this->assertArraySubset(
             [
                 'channel' => $configuration['channel']

Tests/Unit/Controller/SearchControllerTest.php

@@ -22,7 +22,7 @@ namespace Codappix\Tests\Unit\Controller;
 
 use Codappix\SearchCore\Controller\SearchController;
 use Codappix\SearchCore\Domain\Model\SearchRequest;
-use Codappix\SearchCore\Domain\Search\SearchService;
+use Codappix\SearchCore\Domain\Search\CachedSearchService;
 use Codappix\SearchCore\Tests\Unit\AbstractUnitTestCase;
 use TYPO3\CMS\Extbase\Mvc\Web\Request;
 use TYPO3\CMS\Extbase\Object\ObjectManager;
@@ -54,7 +54,7 @@ class SearchControllerTest extends AbstractUnitTestCase
 
         parent::setUp();
 
-        $searchService = $this->getMockBuilder(SearchService::class)
+        $searchService = $this->getMockBuilder(CachedSearchService::class)
             ->disableOriginalConstructor()
             ->getMock();
         $this->request = new Request();

Tests/Unit/Domain/Index/AbstractIndexerTest.php

@@ -82,6 +82,7 @@ class AbstractIndexerTest extends AbstractUnitTestCase
         $expectedRecord['new_test_field'] = 'test';
         $expectedRecord['new_test_field2'] = 'test' . PHP_EOL . 'test';
         $expectedRecord['search_abstract'] = '';
+        $expectedRecord['search_document_type'] = 'testTable';
 
         $this->dataProcessorService->expects($this->any())
             ->method('executeDataProcessor')
@@ -137,6 +138,7 @@ class AbstractIndexerTest extends AbstractUnitTestCase
         $record = ['field 1' => 'test'];
         $expectedRecord = $record;
         $expectedRecord['search_abstract'] = '';
+        $expectedRecord['search_document_type'] = 'testTable';
 
         $this->configuration->expects($this->exactly(2))
             ->method('get')

Tests/Unit/Domain/Model/SearchRequestTest.php

@@ -45,6 +45,10 @@ class SearchRequestTest extends AbstractUnitTestCase
         );
     }
 
+    /**
+     * Data provider for emptyFilterWillNotBeSet()
+     * @return array
+     */
     public function possibleEmptyFilter()
     {
         return [

Tests/Unit/Domain/Search/QueryFactoryTest.php

@@ -428,7 +428,7 @@ class QueryFactoryTest extends AbstractUnitTestCase
                 ['searching.fieldValueFactor']
             )
             ->will($this->onConsecutiveCalls(
-                '_all, field1, field2',
+                'field1, field2',
                 $this->throwException(new InvalidArgumentException),
                 $this->throwException(new InvalidArgumentException),
                 $this->throwException(new InvalidArgumentException),
@@ -445,7 +445,6 @@ class QueryFactoryTest extends AbstractUnitTestCase
                                 'type' => 'most_fields',
                                 'query' => 'SearchWord',
                                 'fields' => [
-                                    '_all',
                                     'field1',
                                     'field2',
                                 ],
@@ -662,6 +661,9 @@ class QueryFactoryTest extends AbstractUnitTestCase
         );
     }
 
+    /**
+     * @return void
+     */
     protected function configureConfigurationMockWithDefault()
     {
         $this->configuration->expects($this->any())