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