Add test.

tests/Unit/DataIndex/Filter/FullTextFilterTest.php

@@ -0,0 +1,66 @@
+<?php
+declare(strict_types=1);
+
+/**
+ * Pimcore
+ *
+ * This source file is available under following license:
+ * - Pimcore Commercial License (PCL)
+ *
+ * @copyright  Copyright (c) Pimcore GmbH (http://www.pimcore.org)
+ * @license    http://www.pimcore.org/license     PCL
+ */
+
+namespace Pimcore\Bundle\StudioBackendBundle\Tests\Unit\DataIndex\Filter;
+
+use Codeception\Stub\Expected;
+use Codeception\Test\Unit;
+use Pimcore\Bundle\StudioBackendBundle\DataIndex\Filter\FullTextFilter;
+use Pimcore\Bundle\StudioBackendBundle\DataIndex\Query\AssetQueryInterface;
+use Pimcore\Bundle\StudioBackendBundle\DataIndex\Query\QueryInterface;
+use Pimcore\Bundle\StudioBackendBundle\Exception\Api\InvalidArgumentException;
+use Pimcore\Bundle\StudioBackendBundle\MappedParameter\Filter\SimpleColumnFilter;
+use Pimcore\Bundle\StudioBackendBundle\MappedParameter\Filter\SimpleColumnFiltersParameterInterface;
+
+/**
+ * @internal
+ */
+final class FullTextFilterTest extends Unit
+{
+    public function testIsExceptionThrownWhenFilterIsNotAString(): void
+    {
+        $columnFilter = new SimpleColumnFilter('system.fulltext', 1);
+        $parameter = $this->makeEmpty(SimpleColumnFiltersParameterInterface::class, [
+            'getSimpleColumnFilterByType' => $columnFilter,
+        ]);
+
+
+        $query = $this->makeEmpty(QueryInterface::class);
+
+        $this->expectException(InvalidArgumentException::class);
+        $this->expectExceptionMessage('Filter value for the fulltext filter must be a string');
+
+        $filter = new FullTextFilter();
+        $filter->apply($parameter, $query);
+    }
+
+    public function testIfFilterFullTextIsCalled(): void
+    {
+        $columnFilter = new SimpleColumnFilter('system.fulltext', "term");
+        $parameter = $this->makeEmpty(SimpleColumnFiltersParameterInterface::class, [
+            'getSimpleColumnFilterByType' => $columnFilter,
+        ]);
+
+
+        $query = $this->makeEmpty(QueryInterface::class, [
+            'filterFullText' => Expected::once(function ($term) {
+                $this->assertSame("term", $term);
+
+                return $this->makeEmpty(QueryInterface::class);
+            }),
+        ]);
+
+        $filter = new FullTextFilter();
+        $filter->apply($parameter, $query);
+    }
+}