File: ShortNumberInfoTest.php

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<?php

declare(strict_types=1);

namespace libphonenumber\Tests\core;

use libphonenumber\CountryCodeToRegionCodeMapForTesting;
use libphonenumber\NumberParseException;
use libphonenumber\PhoneNumber;
use libphonenumber\PhoneNumberUtil;
use libphonenumber\RegionCode;
use libphonenumber\ShortNumberCost;
use libphonenumber\ShortNumberInfo;
use PHPUnit\Framework\TestCase;

use function pack;

class ShortNumberInfoTest extends TestCase
{
    private static string $plusSymbol;
    protected PhoneNumberUtil $phoneUtil;
    private ShortNumberInfo $shortInfo;

    public function setUp(): void
    {
        self::$plusSymbol = pack('H*', 'efbc8b');

        PhoneNumberUtil::resetInstance();
        ShortNumberInfo::resetInstance();
        $this->phoneUtil = PhoneNumberUtil::getInstance(
            'libphonenumber\Tests\core\data\PhoneNumberMetadataForTesting_',
            CountryCodeToRegionCodeMapForTesting::COUNTRY_CODE_TO_REGION_CODE_MAP_FOR_TESTING
        );
        $this->shortInfo = ShortNumberInfo::getInstance();
    }

    public function testIsPossibleShortNumber(): void
    {
        $possibleNumber = new PhoneNumber();
        $possibleNumber->setCountryCode(33)->setNationalNumber('123456');

        self::assertTrue($this->shortInfo->isPossibleShortNumber($possibleNumber));
        self::assertTrue($this->shortInfo->isPossibleShortNumberForRegion($this->parse('123456', RegionCode::FR), RegionCode::FR));

        $impossibleNumber = new PhoneNumber();
        $impossibleNumber->setCountryCode(33)->setNationalNumber('9');
        self::assertFalse($this->shortInfo->isPossibleShortNumber($impossibleNumber));

        // Note that GB and GG share the country calling code 44, and that this number is possible but
        // not valid.
        $gbNumber = new PhoneNumber();
        $gbNumber->setCountryCode(44)->setNationalNumber('11001');
        self::assertTrue($this->shortInfo->isPossibleShortNumber($gbNumber));
    }

    public function testIsValidShortNumber(): void
    {
        $phoneNumberObj = new PhoneNumber();
        $phoneNumberObj->setCountryCode(33)->setNationalNumber('1010');
        self::assertTrue($this->shortInfo->isValidShortNumber($phoneNumberObj));
        self::assertTrue($this->shortInfo->isValidShortNumberForRegion($this->parse('1010', RegionCode::FR), RegionCode::FR));

        $phoneNumberObj = new PhoneNumber();
        $phoneNumberObj->setCountryCode(33)->setNationalNumber('123456');
        self::assertFalse($this->shortInfo->isValidShortNumber($phoneNumberObj));
        self::assertFalse($this->shortInfo->isValidShortNumberForRegion($this->parse('123456', RegionCode::FR), RegionCode::FR));

        // Note that GB and GG share the country calling code 44
        $phoneNumberObj = new PhoneNumber();
        $phoneNumberObj->setCountryCode(44)->setNationalNumber('18001');
        self::assertTrue($this->shortInfo->isValidShortNumber($phoneNumberObj));
    }

    public function testIsCarrierSpecific(): void
    {
        $carrierSpecificNumber = new PhoneNumber();
        $carrierSpecificNumber->setCountryCode(1)->setNationalNumber('33669');
        self::assertTrue($this->shortInfo->isCarrierSpecific($carrierSpecificNumber));
        self::assertTrue($this->shortInfo->isCarrierSpecificForRegion($this->parse('33669', RegionCode::US), RegionCode::US));

        $notCarrierSpecificNumber = new PhoneNumber();
        $notCarrierSpecificNumber->setCountryCode(1)->setNationalNumber('911');
        self::assertFalse($this->shortInfo->isCarrierSpecific($notCarrierSpecificNumber));
        self::assertFalse($this->shortInfo->isCarrierSpecificForRegion($this->parse('911', RegionCode::US), RegionCode::US));

        $carrierSpecificNumberForSomeRegion = new PhoneNumber();
        $carrierSpecificNumberForSomeRegion->setCountryCode(1)->setNationalNumber('211');
        self::assertTrue($this->shortInfo->isCarrierSpecific($carrierSpecificNumberForSomeRegion));
        self::assertTrue($this->shortInfo->isCarrierSpecificForRegion($carrierSpecificNumberForSomeRegion, RegionCode::US));
        self::assertFalse($this->shortInfo->isCarrierSpecificForRegion($carrierSpecificNumberForSomeRegion, RegionCode::BB));
    }

    public function testIsSmsService(): void
    {
        $smsServiceNumberForSomeRegion = new PhoneNumber();
        $smsServiceNumberForSomeRegion->setCountryCode(1)->setNationalNumber('21234');
        self::assertTrue($this->shortInfo->isSmsServiceForRegion($smsServiceNumberForSomeRegion, RegionCode::US));
        self::assertFalse($this->shortInfo->isSmsServiceForRegion($smsServiceNumberForSomeRegion, RegionCode::BB));
    }

    public function testGetExpectedCost(): void
    {
        $premiumRateExample = $this->shortInfo->getExampleShortNumberForCost(
            RegionCode::FR,
            ShortNumberCost::PREMIUM_RATE
        );
        self::assertSame(
            ShortNumberCost::PREMIUM_RATE,
            $this->shortInfo->getExpectedCostForRegion($this->parse($premiumRateExample, RegionCode::FR), RegionCode::FR)
        );

        $premiumRateNumber = new PhoneNumber();
        $premiumRateNumber->setCountryCode(33)->setNationalNumber($premiumRateExample);
        self::assertSame(ShortNumberCost::PREMIUM_RATE, $this->shortInfo->getExpectedCost($premiumRateNumber));

        $standardRateExample = $this->shortInfo->getExampleShortNumberForCost(
            RegionCode::FR,
            ShortNumberCost::STANDARD_RATE
        );
        self::assertSame(
            ShortNumberCost::STANDARD_RATE,
            $this->shortInfo->getExpectedCostForRegion($this->parse($standardRateExample, RegionCode::FR), RegionCode::FR)
        );

        $standardRateNumber = new PhoneNumber();
        $standardRateNumber->setCountryCode(33)->setNationalNumber($standardRateExample);
        self::assertSame(ShortNumberCost::STANDARD_RATE, $this->shortInfo->getExpectedCost($standardRateNumber));

        $tollFreeExample = $this->shortInfo->getExampleShortNumberForCost(RegionCode::FR, ShortNumberCost::TOLL_FREE);
        self::assertSame(
            ShortNumberCost::TOLL_FREE,
            $this->shortInfo->getExpectedCostForRegion($this->parse($tollFreeExample, RegionCode::FR), RegionCode::FR)
        );
        $tollFreeNumber = new PhoneNumber();
        $tollFreeNumber->setCountryCode(33)->setNationalNumber($tollFreeExample);
        self::assertSame(ShortNumberCost::TOLL_FREE, $this->shortInfo->getExpectedCost($tollFreeNumber));

        self::assertSame(
            ShortNumberCost::UNKNOWN_COST,
            $this->shortInfo->getExpectedCostForRegion($this->parse('12345', RegionCode::FR), RegionCode::FR)
        );
        $unknownCostNumber = new PhoneNumber();
        $unknownCostNumber->setCountryCode(33)->setNationalNumber('12345');
        self::assertSame(ShortNumberCost::UNKNOWN_COST, $this->shortInfo->getExpectedCost($unknownCostNumber));

        // Test that an invalid number may nevertheless have a cost other than UNKNOWN_COST.
        self::assertFalse($this->shortInfo->isValidShortNumberForRegion($this->parse('116123', RegionCode::FR), RegionCode::FR));
        self::assertSame(
            ShortNumberCost::TOLL_FREE,
            $this->shortInfo->getExpectedCostForRegion($this->parse('116123', RegionCode::FR), RegionCode::FR)
        );
        $invalidNumber = new PhoneNumber();
        $invalidNumber->setCountryCode(33)->setNationalNumber('116123');
        self::assertFalse($this->shortInfo->isValidShortNumber($invalidNumber));
        self::assertSame(ShortNumberCost::TOLL_FREE, $this->shortInfo->getExpectedCost($invalidNumber));

        // Test a nonexistent country code.
        self::assertSame(
            ShortNumberCost::UNKNOWN_COST,
            $this->shortInfo->getExpectedCostForRegion($this->parse('911', RegionCode::US), RegionCode::ZZ)
        );
        $unknownCostNumber->clear();
        $unknownCostNumber->setCountryCode(123)->setNationalNumber('911');
        self::assertSame(ShortNumberCost::UNKNOWN_COST, $this->shortInfo->getExpectedCost($unknownCostNumber));
    }

    public function testGetExpectedCostForSharedCountryCallingCode(): void
    {
        // Test some numbers which have different costs in countries sharing the same country calling
        // code. In Australia, 1234 is premium-rate, 1194 is standard-rate, and 733 is toll-free. These
        // are not known to be valid numbers in the Christmas Islands.
        $ambiguousPremiumRateString = '1234';
        $ambiguousPremiumRateNumber = new PhoneNumber();
        $ambiguousPremiumRateNumber->setCountryCode(61)->setNationalNumber('1234');
        $ambiguousStandardRateString = '1194';
        $ambiguousStandardRateNumber = new PhoneNumber();
        $ambiguousStandardRateNumber->setCountryCode(61)->setNationalNumber('1194');
        $ambiguousTollFreeString = '733';
        $ambiguousTollFreeNumber = new PhoneNumber();
        $ambiguousTollFreeNumber->setCountryCode(61)->setNationalNumber('733');

        self::assertTrue($this->shortInfo->isValidShortNumber($ambiguousPremiumRateNumber));
        self::assertTrue($this->shortInfo->isValidShortNumber($ambiguousStandardRateNumber));
        self::assertTrue($this->shortInfo->isValidShortNumber($ambiguousTollFreeNumber));

        self::assertTrue($this->shortInfo->isValidShortNumberForRegion($this->parse($ambiguousPremiumRateString, RegionCode::AU), RegionCode::AU));
        self::assertSame(
            ShortNumberCost::PREMIUM_RATE,
            $this->shortInfo->getExpectedCostForRegion($this->parse($ambiguousPremiumRateString, RegionCode::AU), RegionCode::AU)
        );
        self::assertFalse($this->shortInfo->isValidShortNumberForRegion($this->parse($ambiguousPremiumRateString, RegionCode::CX), RegionCode::CX));
        self::assertSame(
            ShortNumberCost::UNKNOWN_COST,
            $this->shortInfo->getExpectedCostForRegion($this->parse($ambiguousPremiumRateString, RegionCode::CX), RegionCode::CX)
        );
        // PREMIUM_RATE takes precedence over UNKNOWN_COST.
        self::assertSame(
            ShortNumberCost::PREMIUM_RATE,
            $this->shortInfo->getExpectedCost($ambiguousPremiumRateNumber)
        );

        self::assertTrue($this->shortInfo->isValidShortNumberForRegion($this->parse($ambiguousStandardRateString, RegionCode::AU), RegionCode::AU));
        self::assertSame(
            ShortNumberCost::STANDARD_RATE,
            $this->shortInfo->getExpectedCostForRegion($this->parse($ambiguousStandardRateString, RegionCode::AU), RegionCode::AU)
        );
        self::assertFalse($this->shortInfo->isValidShortNumberForRegion($this->parse($ambiguousStandardRateString, RegionCode::CX), RegionCode::CX));
        self::assertSame(
            ShortNumberCost::UNKNOWN_COST,
            $this->shortInfo->getExpectedCostForRegion($this->parse($ambiguousStandardRateString, RegionCode::CX), RegionCode::CX)
        );
        self::assertSame(
            ShortNumberCost::UNKNOWN_COST,
            $this->shortInfo->getExpectedCost($ambiguousStandardRateNumber)
        );

        self::assertTrue($this->shortInfo->isValidShortNumberForRegion($this->parse($ambiguousTollFreeString, RegionCode::AU), RegionCode::AU));
        self::assertSame(
            ShortNumberCost::TOLL_FREE,
            $this->shortInfo->getExpectedCostForRegion($this->parse($ambiguousTollFreeString, RegionCode::AU), RegionCode::AU)
        );
        self::assertFalse($this->shortInfo->isValidShortNumberForRegion($this->parse($ambiguousTollFreeString, RegionCode::CX), RegionCode::CX));
        self::assertSame(
            ShortNumberCost::UNKNOWN_COST,
            $this->shortInfo->getExpectedCostForRegion($this->parse($ambiguousTollFreeString, RegionCode::CX), RegionCode::CX)
        );
        self::assertSame(ShortNumberCost::UNKNOWN_COST, $this->shortInfo->getExpectedCost($ambiguousTollFreeNumber));
    }

    public function testExampleShortNumberPresence(): void
    {
        self::assertNotEmpty($this->shortInfo->getExampleShortNumber(RegionCode::AD));
        self::assertNotEmpty($this->shortInfo->getExampleShortNumber(RegionCode::FR));
        self::assertEmpty($this->shortInfo->getExampleShortNumber(RegionCode::UN001));
    }

    public function testConnectsToEmergencyNumber_US(): void
    {
        self::assertTrue($this->shortInfo->connectsToEmergencyNumber('911', RegionCode::US));
        self::assertTrue($this->shortInfo->connectsToEmergencyNumber('112', RegionCode::US));
        self::assertFalse($this->shortInfo->connectsToEmergencyNumber('999', RegionCode::US));
    }

    public function testConnectsToEmergencyNumberLongNumber_US(): void
    {
        self::assertTrue($this->shortInfo->connectsToEmergencyNumber('9116666666', RegionCode::US));
        self::assertTrue($this->shortInfo->connectsToEmergencyNumber('1126666666', RegionCode::US));
        self::assertFalse($this->shortInfo->connectsToEmergencyNumber('9996666666', RegionCode::US));
    }

    public function testConnectsToEmergencyNumberWithFormatting_US(): void
    {
        self::assertTrue($this->shortInfo->connectsToEmergencyNumber('9-1-1', RegionCode::US));
        self::assertTrue($this->shortInfo->connectsToEmergencyNumber('1-1-2', RegionCode::US));
        self::assertFalse($this->shortInfo->connectsToEmergencyNumber('9-9-9', RegionCode::US));
    }

    public function testConnectsToEmergencyNumberWithPlusSign_US(): void
    {
        self::assertFalse($this->shortInfo->connectsToEmergencyNumber('+911', RegionCode::US));
        self::assertFalse(
            $this->shortInfo->connectsToEmergencyNumber(self::$plusSymbol . '911', RegionCode::US)
        );
        self::assertFalse($this->shortInfo->connectsToEmergencyNumber(' +911', RegionCode::US));
        self::assertFalse($this->shortInfo->connectsToEmergencyNumber('+112', RegionCode::US));
        self::assertFalse($this->shortInfo->connectsToEmergencyNumber('+999', RegionCode::US));
    }

    public function testConnectsToEmergencyNumber_BR(): void
    {
        self::assertTrue($this->shortInfo->connectsToEmergencyNumber('911', RegionCode::BR));
        self::assertTrue($this->shortInfo->connectsToEmergencyNumber('190', RegionCode::BR));
        self::assertFalse($this->shortInfo->connectsToEmergencyNumber('999', RegionCode::BR));
    }

    public function testConnectsToEmergencyNumberLongNumber_BR(): void
    {
        // Brazilian emergency numbers don't work when additional digits are appended.
        self::assertFalse($this->shortInfo->connectsToEmergencyNumber('9111', RegionCode::BR));
        self::assertFalse($this->shortInfo->connectsToEmergencyNumber('1900', RegionCode::BR));
        self::assertFalse($this->shortInfo->connectsToEmergencyNumber('9996', RegionCode::BR));
    }

    public function testConnectsToEmergencyNumber_CL(): void
    {
        self::assertTrue($this->shortInfo->connectsToEmergencyNumber('131', RegionCode::CL));
        self::assertTrue($this->shortInfo->connectsToEmergencyNumber('133', RegionCode::CL));
    }

    public function testConnectsToEmergencyNumberLongNumber_CL(): void
    {
        // Chilean emergency numbers don't work when additional digits are appended.
        self::assertFalse($this->shortInfo->connectsToEmergencyNumber('1313', RegionCode::CL));
        self::assertFalse($this->shortInfo->connectsToEmergencyNumber('1330', RegionCode::CL));
    }

    public function testConnectsToEmergencyNumber_AO(): void
    {
        // Angola doesn't have any metadata for emergency numbers in the test metadata.
        self::assertFalse($this->shortInfo->connectsToEmergencyNumber('911', RegionCode::AO));
        self::assertFalse($this->shortInfo->connectsToEmergencyNumber('222123456', RegionCode::BR));
        self::assertFalse($this->shortInfo->connectsToEmergencyNumber('923123456', RegionCode::BR));
    }

    public function testConnectsToEmergencyNumber_ZW(): void
    {
        // Zimbabwe doesn't have any metadata in the test metadata.
        self::assertFalse($this->shortInfo->connectsToEmergencyNumber('911', RegionCode::ZW));
        self::assertFalse($this->shortInfo->connectsToEmergencyNumber('01312345', RegionCode::ZW));
        self::assertFalse($this->shortInfo->connectsToEmergencyNumber('0711234567', RegionCode::ZW));
    }

    public function testIsEmergencyNumber_US(): void
    {
        self::assertTrue($this->shortInfo->isEmergencyNumber('911', RegionCode::US));
        self::assertTrue($this->shortInfo->isEmergencyNumber('112', RegionCode::US));
        self::assertFalse($this->shortInfo->isEmergencyNumber('999', RegionCode::US));
    }

    public function testIsEmergencyNumberLongNumber_US(): void
    {
        self::assertFalse($this->shortInfo->isEmergencyNumber('9116666666', RegionCode::US));
        self::assertFalse($this->shortInfo->isEmergencyNumber('1126666666', RegionCode::US));
        self::assertFalse($this->shortInfo->isEmergencyNumber('9996666666', RegionCode::US));
    }

    public function testIsEmergencyNumberWithFormatting_US(): void
    {
        self::assertTrue($this->shortInfo->isEmergencyNumber('9-1-1', RegionCode::US));
        self::assertTrue($this->shortInfo->isEmergencyNumber('*911', RegionCode::US));
        self::assertTrue($this->shortInfo->isEmergencyNumber('1-1-2', RegionCode::US));
        self::assertTrue($this->shortInfo->isEmergencyNumber('*112', RegionCode::US));
        self::assertFalse($this->shortInfo->isEmergencyNumber('9-9-9', RegionCode::US));
        self::assertFalse($this->shortInfo->isEmergencyNumber('*999', RegionCode::US));
    }

    public function testIsEmergencyNumberWithPlusSign_US(): void
    {
        self::assertFalse($this->shortInfo->isEmergencyNumber('+911', RegionCode::US));
        self::assertFalse($this->shortInfo->isEmergencyNumber(self::$plusSymbol . '911', RegionCode::US));
        self::assertFalse($this->shortInfo->isEmergencyNumber(' +911', RegionCode::US));
        self::assertFalse($this->shortInfo->isEmergencyNumber('+112', RegionCode::US));
        self::assertFalse($this->shortInfo->isEmergencyNumber('+999', RegionCode::US));
    }

    public function testIsEmergencyNumber_BR(): void
    {
        self::assertTrue($this->shortInfo->isEmergencyNumber('911', RegionCode::BR));
        self::assertTrue($this->shortInfo->isEmergencyNumber('190', RegionCode::BR));
        self::assertFalse($this->shortInfo->isEmergencyNumber('999', RegionCode::BR));
    }

    public function testIsEmergencyNumberLongNumber_BR(): void
    {
        self::assertFalse($this->shortInfo->isEmergencyNumber('9111', RegionCode::BR));
        self::assertFalse($this->shortInfo->isEmergencyNumber('1900', RegionCode::BR));
        self::assertFalse($this->shortInfo->isEmergencyNumber('9996', RegionCode::BR));
    }

    public function testIsEmergencyNumber_AO(): void
    {
        // Angola doesn't have any metadata for emergency numbers in the test metadata.
        self::assertFalse($this->shortInfo->isEmergencyNumber('911', RegionCode::AO));
        self::assertFalse($this->shortInfo->isEmergencyNumber('222123456', RegionCode::AO));
        self::assertFalse($this->shortInfo->isEmergencyNumber('923123456', RegionCode::AO));
    }

    public function testIsEmergencyNumber_ZW(): void
    {
        // Zimbabwe doesn't have any metadata in the test metadata.
        self::assertFalse($this->shortInfo->isEmergencyNumber('911', RegionCode::ZW));
        self::assertFalse($this->shortInfo->isEmergencyNumber('01312345', RegionCode::ZW));
        self::assertFalse($this->shortInfo->isEmergencyNumber('0711234567', RegionCode::ZW));
    }


    public function testEmergencyNumberForSharedCountryCallingCode(): void
    {
        // Test the emergency number 112, which is valid in both Australia and the Christmas Islands.
        self::assertTrue($this->shortInfo->isEmergencyNumber('112', RegionCode::AU));
        self::assertTrue($this->shortInfo->isValidShortNumberForRegion($this->parse('112', RegionCode::AU), RegionCode::AU));
        self::assertSame(
            ShortNumberCost::TOLL_FREE,
            $this->shortInfo->getExpectedCostForRegion($this->parse('112', RegionCode::AU), RegionCode::AU)
        );
        self::assertTrue($this->shortInfo->isEmergencyNumber('112', RegionCode::CX));
        self::assertTrue($this->shortInfo->isValidShortNumberForRegion($this->parse('112', RegionCode::CX), RegionCode::CX));
        self::assertSame(
            ShortNumberCost::TOLL_FREE,
            $this->shortInfo->getExpectedCostForRegion($this->parse('112', RegionCode::CX), RegionCode::CX)
        );
        $sharedEmergencyNumber = new PhoneNumber();
        $sharedEmergencyNumber->setCountryCode(61)->setNationalNumber('112');
        self::assertTrue($this->shortInfo->isValidShortNumber($sharedEmergencyNumber));
        self::assertSame(ShortNumberCost::TOLL_FREE, $this->shortInfo->getExpectedCost($sharedEmergencyNumber));
    }

    public function testOverlappingNANPANumber(): void
    {
        // 211 is an emergency number in Barbados, while it is a toll-free information line in Canada
        // and the USA.
        self::assertTrue($this->shortInfo->isEmergencyNumber('211', RegionCode::BB));
        self::assertSame(
            ShortNumberCost::TOLL_FREE,
            $this->shortInfo->getExpectedCostForRegion($this->parse('211', RegionCode::BB), RegionCode::BB)
        );
        self::assertFalse($this->shortInfo->isEmergencyNumber('211', RegionCode::US));
        self::assertSame(
            ShortNumberCost::UNKNOWN_COST,
            $this->shortInfo->getExpectedCostForRegion($this->parse('211', RegionCode::US), RegionCode::US)
        );
        self::assertFalse($this->shortInfo->isEmergencyNumber('211', RegionCode::CA));
        self::assertSame(
            ShortNumberCost::TOLL_FREE,
            $this->shortInfo->getExpectedCostForRegion($this->parse('211', RegionCode::CA), RegionCode::CA)
        );
    }

    public function testCountryCallingCodeIsNotIgnored(): void
    {
        // +46 is the country calling code for Sweden (SE), and 40404 is a valid short number in the US.
        self::assertFalse($this->shortInfo->isPossibleShortNumberForRegion($this->parse('+4640404', RegionCode::SE), RegionCode::US));
        self::assertFalse($this->shortInfo->isValidShortNumberForRegion($this->parse('+4640404', RegionCode::SE), RegionCode::US));
        self::assertSame(ShortNumberCost::UNKNOWN_COST, $this->shortInfo->getExpectedCostForRegion($this->parse('+4640404', RegionCode::SE), RegionCode::US));
    }

    private function parse(string $number, string $regionCode): PhoneNumber
    {
        try {
            return $this->phoneUtil->parse($number, $regionCode);
        } catch (NumberParseException $e) {
            self::fail('Test input data should always parse correctly: ' . $number . ' (' . $regionCode . ')');
        }
    }

    public function testThatANullRegionCodeDoesNotCauseDeprecationWarning(): void
    {
        $validRegularNumber = $this->parse('01234 567 890', 'GB');
        self::assertFalse($this->shortInfo->isValidShortNumber($validRegularNumber));
    }
}