diff --git a/tests/PhpSpreadsheetTests/Style/ConditionalFormatting/PR3946Test.php b/tests/PhpSpreadsheetTests/Style/ConditionalFormatting/PR3946Test.php
new file mode 100644
index 000000000..7230ea9c5
--- /dev/null
+++ b/tests/PhpSpreadsheetTests/Style/ConditionalFormatting/PR3946Test.php
@@ -0,0 +1,42 @@
+<?php
+
+declare(strict_types=1);
+
+namespace PhpOffice\PhpSpreadsheetTests\Style\ConditionalFormatting;
+
+use PhpOffice\PhpSpreadsheet\Spreadsheet;
+use PhpOffice\PhpSpreadsheet\Style\Conditional;
+use PhpOffice\PhpSpreadsheet\Style\Fill;
+use PhpOffice\PhpSpreadsheet\Style\Style;
+use PhpOffice\PhpSpreadsheet\Writer\Xlsx as XlsxWriter;
+use PHPUnit\Framework\TestCase;
+
+class PR3946Test extends TestCase
+{
+    public function testConditionalTextInitialized(): void
+    {
+        $spreadsheet = new Spreadsheet();
+        $sheet = $spreadsheet->getActiveSheet();
+
+        $cellRange = 'C3:E5';
+        $style = new Style();
+        $style->applyFromArray([
+            'fill' => [
+                'color' => ['argb' => 'FFFFC000'],
+                'fillType' => Fill::FILL_SOLID,
+            ],
+        ]);
+
+        $condition = new Conditional();
+        $condition->setConditionType(Conditional::CONDITION_CONTAINSTEXT);
+        $condition->setOperatorType(Conditional::OPERATOR_CONTAINSTEXT);
+        $condition->setStyle($style);
+        $sheet->setConditionalStyles($cellRange, [$condition]);
+
+        $writer = new XlsxWriter($spreadsheet);
+
+        $writerWorksheet = new XlsxWriter\Worksheet($writer);
+        $data = $writerWorksheet->writeWorksheet($sheet, []);
+        self::assertStringContainsString('<conditionalFormatting sqref="C3:E5">', $data);
+    }
+}