setVatIdOfTheCountryToValidateFormat example

$customer = $this->getCustomer();

        static::assertEquals(['DE123456789'], $customer->getVatIds());
        static::assertEquals($changeData['company'], $customer->getCompany());
        static::assertEquals($changeData['firstName'], $customer->getFirstName());
        static::assertEquals($changeData['lastName'], $customer->getLastName());
    }

    public function testChangeProfileDataWithCommercialAccountAndVatIdsIsEmpty(): void
    {
        $this->setVatIdOfTheCountryToValidateFormat();

        $changeData = [
            'salutationId' => $this->getValidSalutationId(),
            'accountType' => CustomerEntity::ACCOUNT_TYPE_BUSINESS,
            'firstName' => 'Max',
            'lastName' => 'Mustermann',
            'company' => 'Test Company',
            'vatIds' => [],
        ];
        $this->browser
            ->request(