<?php namespace PhpOffice\PhpSpreadsheetTests\Calculation\Functions\TextData; use PhpOffice\PhpSpreadsheet\Calculation\TextData; use PHPUnit\Framework\TestCase; class LowerTest extends TestCase { /** * @dataProvider providerLOWER * * @param mixed $expectedResult * @param $value */ public function testLOWER($expectedResult, $value): void { $result = TextData::LOWERCASE($value); self::assertEquals($expectedResult, $result); } public function providerLOWER() { return require 'tests/data/Calculation/TextData/LOWER.php'; } }