PhpSpreadsheet/tests/PhpSpreadsheetTests/Calculation/Functions/Information/IsNaTest.php

<?php

namespace PhpOffice\PhpSpreadsheetTests\Calculation\Functions\Information;

use PhpOffice\PhpSpreadsheet\Calculation\Calculation;
use PhpOffice\PhpSpreadsheet\Calculation\Functions;
use PHPUnit\Framework\TestCase;

class IsNaTest extends TestCase
{
    public function testIsNaNoArgument(): void
    {
        $result = Functions::isNa();
        self::assertFalse($result);
    }

    /**
     * @dataProvider providerIsNa
     *
     * @param mixed $value
     */
    public function testIsNa(bool $expectedResult, $value): void
    {
        $result = Functions::isNa($value);
        self::assertEquals($expectedResult, $result);
    }

    public function providerIsNa(): array
    {
        return require 'tests/data/Calculation/Information/IS_NA.php';
    }

    /**
     * @dataProvider providerIsNaArray
     */
    public function testIsNaArray(array $expectedResult, string $values): void
    {
        $calculation = Calculation::getInstance();

        $formula = "=ISNA({$values})";
        $result = $calculation->_calculateFormulaValue($formula);
        self::assertEquals($expectedResult, $result);
    }

    public function providerIsNaArray(): array
    {
        return [
            'vector' => [
                [[false, false, true, false, false, false]],
                '{5/0, "#REF!", "#N/A", 1.2, TRUE, "PHP"}',
            ],
        ];
    }
}