Coverage Tweak

Author: oleibman

tests/PhpSpreadsheetTests/Calculation/Functions/DateTime/HelpersTest.php

@@ -0,0 +1,19 @@
+<?php
+
+declare(strict_types=1);
+
+namespace PhpOffice\PhpSpreadsheetTests\Calculation\Functions\DateTime;
+
+use PhpOffice\PhpSpreadsheet\Calculation\DateTimeExcel\Helpers;
+use PhpOffice\PhpSpreadsheet\Calculation\Exception as CalcExp;
+use PHPUnit\Framework\TestCase;
+
+class HelpersTest extends TestCase
+{
+    public function testGetDateValueBadObject(): void
+    {
+        $this->expectException(CalcExp::class);
+        $this->expectExceptionMessage('#VALUE!');
+        Helpers::getDateValue($this);
+    }
+}