<?php namespace PhpOffice\PhpSpreadsheetTests\Calculation\Functions\Engineering; use PhpOffice\PhpSpreadsheet\Calculation\Engineering; use PhpOffice\PhpSpreadsheet\Calculation\Functions; use PHPUnit\Framework\TestCase; class DeltaTest extends TestCase { public function setUp() { Functions::setCompatibilityMode(Functions::COMPATIBILITY_EXCEL); } /** * @dataProvider providerDELTA * * @param mixed $expectedResult */ public function testDELTA($expectedResult, ...$args) { $result = Engineering::DELTA(...$args); $this->assertEquals($expectedResult, $result); } public function providerDELTA() { return require 'data/Calculation/Engineering/DELTA.php'; } }