Files
PhpSpreadsheet/tests/PhpSpreadsheetTests/Calculation/CustomFunctionTest.php
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oleibman c0a966b9bb Add a Test
Prove you can't override a built-in function.
2025-03-06 16:40:09 -08:00

37 lines
1.5 KiB
PHP

<?php
declare(strict_types=1);
namespace PhpOffice\PhpSpreadsheetTests\Calculation;
use PhpOffice\PhpSpreadsheet\Calculation\Calculation;
use PHPUnit\Framework\TestCase;
class CustomFunctionTest extends TestCase
{
public static function testCustomFunction(): void
{
$calculation = Calculation::getInstance();
$key = 'FOURTHPOWER';
// I have no idea why Phpstan needs this
/** @var array<string, array> */
$value = [
'category' => 'custom',
'functionCall' => [CustomFunction::class, 'fourthPower'],
'argumentCount' => '1',
];
self::assertTrue(Calculation::addFunction($key, $value));
self::assertFalse(Calculation::addFunction('sqrt', $value));
self::assertSame(16, $calculation->calculateFormula('=FOURTHPOWER(2)'));
self::assertSame('#VALUE!', $calculation->calculateFormula('=FOURTHPOWER("X")'));
self::assertSame('#NAME?', $calculation->calculateFormula('=FOURTHPOWE("X")'));
self::assertFalse(Calculation::removeFunction('SQRT'));
self::assertSame(2.0, $calculation->calculateFormula('=SQRT(4)'));
self::assertFalse(Calculation::removeFunction('sqrt'));
self::assertSame(4.0, $calculation->calculateFormula('=sqrt(16)'));
self::assertTrue(Calculation::removeFunction($key));
self::assertSame('#NAME?', $calculation->calculateFormula('=FOURTHPOWER(3)'));
self::assertFalse(Calculation::removeFunction('WHATEVER'));
}
}