symfony_example_app/tests/Validator/MoneyValidatorTest.php

<?php
declare(strict_types=1);

namespace App\Tests\Validator;

use App\Validator\Money;
use App\Validator\MoneyValidator;

class MoneyValidatorTest extends ValidatorTestCase
{
    /**
     * @dataProvider successDp
     * @param string $generatedValue
     * @return void
     */
    public function testSuccess(string $generatedValue): void {
        $moneyValidator = new MoneyValidator();
        $moneyValidator->initialize($this->createExecutionContext(false));
        $moneyValidator->validate($generatedValue, new Money(['message' => 'foo']));
    }

    private function successDp(): array {
        return [['122'], ['122.0'], ['122,00'], ['122'], ['2.05'], ['2,04']];
    }

    /**
     * @dataProvider failureDp
     * @param string $generatedValue
     * @return void
     */
    public function testFailure(string $generatedValue): void {
        $moneyValidator = new MoneyValidator();
        $moneyValidator->initialize($this->createExecutionContext(true));
        $moneyValidator->validate($generatedValue, new Money(['message' => 'foo']));
    }

    private function failureDp(): array {
        return [['122.b'], ['a.a'], ['a'], ['2.040'], ['2,a'], ['-223']];
    }
}