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Assert.php
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<?php
/*
* This file is part of the webmozart/assert package.
*
* (c) Bernhard Schussek <bschussek@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Webmozart\Assert;
use ArrayAccess;
use BadMethodCallException;
use Closure;
use Countable;
use DateTime;
use DateTimeImmutable;
use Exception;
use ResourceBundle;
use SimpleXMLElement;
use Throwable;
use Traversable;
/**
* Efficient assertions to validate the input/output of your methods.
*
* @since 1.0
*
* @author Bernhard Schussek <bschussek@gmail.com>
*/
class Assert
{
use Mixin;
/**
* @psalm-pure
* @psalm-assert string $value
*
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function string($value, $message = '')
{
if (!\is_string($value)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a string. Got: %s',
static::typeToString($value)
));
}
}
/**
* @psalm-pure
* @psalm-assert non-empty-string $value
*
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function stringNotEmpty($value, $message = '')
{
static::string($value, $message);
static::notEq($value, '', $message);
}
/**
* @psalm-pure
* @psalm-assert int $value
*
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function integer($value, $message = '')
{
if (!\is_int($value)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected an integer. Got: %s',
static::typeToString($value)
));
}
}
/**
* @psalm-pure
* @psalm-assert numeric $value
*
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function integerish($value, $message = '')
{
if (!\is_numeric($value) || $value != (int) $value) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected an integerish value. Got: %s',
static::typeToString($value)
));
}
}
/**
* @psalm-pure
* @psalm-assert positive-int $value
*
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function positiveInteger($value, $message = '')
{
if (!(\is_int($value) && $value > 0)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a positive integer. Got: %s',
static::valueToString($value)
));
}
}
/**
* @psalm-pure
* @psalm-assert float $value
*
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function float($value, $message = '')
{
if (!\is_float($value)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a float. Got: %s',
static::typeToString($value)
));
}
}
/**
* @psalm-pure
* @psalm-assert numeric $value
*
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function numeric($value, $message = '')
{
if (!\is_numeric($value)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a numeric. Got: %s',
static::typeToString($value)
));
}
}
/**
* @psalm-pure
* @psalm-assert positive-int|0 $value
*
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function natural($value, $message = '')
{
if (!\is_int($value) || $value < 0) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a non-negative integer. Got: %s',
static::valueToString($value)
));
}
}
/**
* @psalm-pure
* @psalm-assert bool $value
*
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function boolean($value, $message = '')
{
if (!\is_bool($value)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a boolean. Got: %s',
static::typeToString($value)
));
}
}
/**
* @psalm-pure
* @psalm-assert scalar $value
*
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function scalar($value, $message = '')
{
if (!\is_scalar($value)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a scalar. Got: %s',
static::typeToString($value)
));
}
}
/**
* @psalm-pure
* @psalm-assert object $value
*
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function object($value, $message = '')
{
if (!\is_object($value)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected an object. Got: %s',
static::typeToString($value)
));
}
}
/**
* @psalm-pure
* @psalm-assert resource $value
*
* @param mixed $value
* @param string|null $type type of resource this should be. @see https://www.php.net/manual/en/function.get-resource-type.php
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function resource($value, $type = null, $message = '')
{
if (!\is_resource($value)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a resource. Got: %s',
static::typeToString($value)
));
}
if ($type && $type !== \get_resource_type($value)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a resource of type %2$s. Got: %s',
static::typeToString($value),
$type
));
}
}
/**
* @psalm-pure
* @psalm-assert callable $value
*
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function isCallable($value, $message = '')
{
if (!\is_callable($value)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a callable. Got: %s',
static::typeToString($value)
));
}
}
/**
* @psalm-pure
* @psalm-assert array $value
*
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function isArray($value, $message = '')
{
if (!\is_array($value)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected an array. Got: %s',
static::typeToString($value)
));
}
}
/**
* @psalm-pure
* @psalm-assert iterable $value
*
* @deprecated use "isIterable" or "isInstanceOf" instead
*
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function isTraversable($value, $message = '')
{
@\trigger_error(
\sprintf(
'The "%s" assertion is deprecated. You should stop using it, as it will soon be removed in 2.0 version. Use "isIterable" or "isInstanceOf" instead.',
__METHOD__
),
\E_USER_DEPRECATED
);
if (!\is_array($value) && !($value instanceof Traversable)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a traversable. Got: %s',
static::typeToString($value)
));
}
}
/**
* @psalm-pure
* @psalm-assert array|ArrayAccess $value
*
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function isArrayAccessible($value, $message = '')
{
if (!\is_array($value) && !($value instanceof ArrayAccess)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected an array accessible. Got: %s',
static::typeToString($value)
));
}
}
/**
* @psalm-pure
* @psalm-assert countable $value
*
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function isCountable($value, $message = '')
{
if (
!\is_array($value)
&& !($value instanceof Countable)
&& !($value instanceof ResourceBundle)
&& !($value instanceof SimpleXMLElement)
) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a countable. Got: %s',
static::typeToString($value)
));
}
}
/**
* @psalm-pure
* @psalm-assert iterable $value
*
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function isIterable($value, $message = '')
{
if (!\is_array($value) && !($value instanceof Traversable)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected an iterable. Got: %s',
static::typeToString($value)
));
}
}
/**
* @psalm-pure
* @psalm-template ExpectedType of object
* @psalm-param class-string<ExpectedType> $class
* @psalm-assert ExpectedType $value
*
* @param mixed $value
* @param string|object $class
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function isInstanceOf($value, $class, $message = '')
{
if (!($value instanceof $class)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected an instance of %2$s. Got: %s',
static::typeToString($value),
$class
));
}
}
/**
* @psalm-pure
* @psalm-template ExpectedType of object
* @psalm-param class-string<ExpectedType> $class
* @psalm-assert !ExpectedType $value
*
* @param mixed $value
* @param string|object $class
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function notInstanceOf($value, $class, $message = '')
{
if ($value instanceof $class) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected an instance other than %2$s. Got: %s',
static::typeToString($value),
$class
));
}
}
/**
* @psalm-pure
* @psalm-param array<class-string> $classes
*
* @param mixed $value
* @param array<object|string> $classes
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function isInstanceOfAny($value, array $classes, $message = '')
{
foreach ($classes as $class) {
if ($value instanceof $class) {
return;
}
}
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected an instance of any of %2$s. Got: %s',
static::typeToString($value),
\implode(', ', \array_map(array(static::class, 'valueToString'), $classes))
));
}
/**
* @psalm-pure
* @psalm-template ExpectedType of object
* @psalm-param class-string<ExpectedType> $class
* @psalm-assert ExpectedType|class-string<ExpectedType> $value
*
* @param object|string $value
* @param string $class
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function isAOf($value, $class, $message = '')
{
static::string($class, 'Expected class as a string. Got: %s');
if (!\is_a($value, $class, \is_string($value))) {
static::reportInvalidArgument(sprintf(
$message ?: 'Expected an instance of this class or to this class among its parents "%2$s". Got: %s',
static::valueToString($value),
$class
));
}
}
/**
* @psalm-pure
* @psalm-template UnexpectedType of object
* @psalm-param class-string<UnexpectedType> $class
* @psalm-assert !UnexpectedType $value
* @psalm-assert !class-string<UnexpectedType> $value
*
* @param object|string $value
* @param string $class
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function isNotA($value, $class, $message = '')
{
static::string($class, 'Expected class as a string. Got: %s');
if (\is_a($value, $class, \is_string($value))) {
static::reportInvalidArgument(sprintf(
$message ?: 'Expected an instance of this class or to this class among its parents other than "%2$s". Got: %s',
static::valueToString($value),
$class
));
}
}
/**
* @psalm-pure
* @psalm-param array<class-string> $classes
*
* @param object|string $value
* @param string[] $classes
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function isAnyOf($value, array $classes, $message = '')
{
foreach ($classes as $class) {
static::string($class, 'Expected class as a string. Got: %s');
if (\is_a($value, $class, \is_string($value))) {
return;
}
}
static::reportInvalidArgument(sprintf(
$message ?: 'Expected an instance of any of this classes or any of those classes among their parents "%2$s". Got: %s',
static::valueToString($value),
\implode(', ', $classes)
));
}
/**
* @psalm-pure
* @psalm-assert empty $value
*
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function isEmpty($value, $message = '')
{
if (!empty($value)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected an empty value. Got: %s',
static::valueToString($value)
));
}
}
/**
* @psalm-pure
* @psalm-assert !empty $value
*
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function notEmpty($value, $message = '')
{
if (empty($value)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a non-empty value. Got: %s',
static::valueToString($value)
));
}
}
/**
* @psalm-pure
* @psalm-assert null $value
*
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function null($value, $message = '')
{
if (null !== $value) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected null. Got: %s',
static::valueToString($value)
));
}
}
/**
* @psalm-pure
* @psalm-assert !null $value
*
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function notNull($value, $message = '')
{
if (null === $value) {
static::reportInvalidArgument(
$message ?: 'Expected a value other than null.'
);
}
}
/**
* @psalm-pure
* @psalm-assert true $value
*
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function true($value, $message = '')
{
if (true !== $value) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a value to be true. Got: %s',
static::valueToString($value)
));
}
}
/**
* @psalm-pure
* @psalm-assert false $value
*
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function false($value, $message = '')
{
if (false !== $value) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a value to be false. Got: %s',
static::valueToString($value)
));
}
}
/**
* @psalm-pure
* @psalm-assert !false $value
*
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function notFalse($value, $message = '')
{
if (false === $value) {
static::reportInvalidArgument(
$message ?: 'Expected a value other than false.'
);
}
}
/**
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function ip($value, $message = '')
{
if (false === \filter_var($value, \FILTER_VALIDATE_IP)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a value to be an IP. Got: %s',
static::valueToString($value)
));
}
}
/**
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function ipv4($value, $message = '')
{
if (false === \filter_var($value, \FILTER_VALIDATE_IP, \FILTER_FLAG_IPV4)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a value to be an IPv4. Got: %s',
static::valueToString($value)
));
}
}
/**
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function ipv6($value, $message = '')
{
if (false === \filter_var($value, \FILTER_VALIDATE_IP, \FILTER_FLAG_IPV6)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a value to be an IPv6. Got: %s',
static::valueToString($value)
));
}
}
/**
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function email($value, $message = '')
{
if (false === \filter_var($value, FILTER_VALIDATE_EMAIL)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a value to be a valid e-mail address. Got: %s',
static::valueToString($value)
));
}
}
/**
* Does non strict comparisons on the items, so ['3', 3] will not pass the assertion.
*
* @param array $values
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function uniqueValues(array $values, $message = '')
{
$allValues = \count($values);
$uniqueValues = \count(\array_unique($values));
if ($allValues !== $uniqueValues) {
$difference = $allValues - $uniqueValues;
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected an array of unique values, but %s of them %s duplicated',
$difference,
(1 === $difference ? 'is' : 'are')
));
}
}
/**
* @param mixed $value
* @param mixed $expect
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function eq($value, $expect, $message = '')
{
if ($expect != $value) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a value equal to %2$s. Got: %s',
static::valueToString($value),
static::valueToString($expect)
));
}
}
/**
* @param mixed $value
* @param mixed $expect
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function notEq($value, $expect, $message = '')
{
if ($expect == $value) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a different value than %s.',
static::valueToString($expect)
));
}
}
/**
* @psalm-pure
*
* @param mixed $value
* @param mixed $expect
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function same($value, $expect, $message = '')
{
if ($expect !== $value) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a value identical to %2$s. Got: %s',
static::valueToString($value),
static::valueToString($expect)
));
}
}
/**
* @psalm-pure
*
* @param mixed $value
* @param mixed $expect
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function notSame($value, $expect, $message = '')
{
if ($expect === $value) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a value not identical to %s.',
static::valueToString($expect)
));
}
}
/**
* @psalm-pure
*
* @param mixed $value
* @param mixed $limit
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function greaterThan($value, $limit, $message = '')
{
if ($value <= $limit) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a value greater than %2$s. Got: %s',
static::valueToString($value),
static::valueToString($limit)
));
}
}
/**
* @psalm-pure
*
* @param mixed $value
* @param mixed $limit
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function greaterThanEq($value, $limit, $message = '')
{
if ($value < $limit) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a value greater than or equal to %2$s. Got: %s',
static::valueToString($value),
static::valueToString($limit)
));
}
}
/**
* @psalm-pure
*
* @param mixed $value
* @param mixed $limit
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function lessThan($value, $limit, $message = '')
{
if ($value >= $limit) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a value less than %2$s. Got: %s',
static::valueToString($value),
static::valueToString($limit)
));
}
}
/**
* @psalm-pure
*
* @param mixed $value
* @param mixed $limit
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function lessThanEq($value, $limit, $message = '')
{
if ($value > $limit) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a value less than or equal to %2$s. Got: %s',
static::valueToString($value),
static::valueToString($limit)
));
}
}
/**
* Inclusive range, so Assert::(3, 3, 5) passes.
*
* @psalm-pure
*
* @param mixed $value
* @param mixed $min
* @param mixed $max
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function range($value, $min, $max, $message = '')
{
if ($value < $min || $value > $max) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a value between %2$s and %3$s. Got: %s',
static::valueToString($value),
static::valueToString($min),
static::valueToString($max)
));
}
}
/**
* A more human-readable alias of Assert::inArray().
*
* @psalm-pure
*
* @param mixed $value
* @param array $values
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function oneOf($value, array $values, $message = '')
{
static::inArray($value, $values, $message);
}
/**
* Does strict comparison, so Assert::inArray(3, ['3']) does not pass the assertion.
*
* @psalm-pure
*
* @param mixed $value
* @param array $values
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function inArray($value, array $values, $message = '')
{
if (!\in_array($value, $values, true)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected one of: %2$s. Got: %s',
static::valueToString($value),
\implode(', ', \array_map(array(static::class, 'valueToString'), $values))
));
}
}
/**
* @psalm-pure
*
* @param string $value
* @param string $subString
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function contains($value, $subString, $message = '')
{
if (false === \strpos($value, $subString)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a value to contain %2$s. Got: %s',
static::valueToString($value),
static::valueToString($subString)
));
}
}
/**
* @psalm-pure
*
* @param string $value
* @param string $subString
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function notContains($value, $subString, $message = '')
{
if (false !== \strpos($value, $subString)) {
static::reportInvalidArgument(\sprintf(
$message ?: '%2$s was not expected to be contained in a value. Got: %s',
static::valueToString($value),
static::valueToString($subString)
));
}
}
/**
* @psalm-pure
*
* @param string $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function notWhitespaceOnly($value, $message = '')
{
if (\preg_match('/^\s*$/', $value)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a non-whitespace string. Got: %s',
static::valueToString($value)
));
}
}
/**
* @psalm-pure
*
* @param string $value
* @param string $prefix
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function startsWith($value, $prefix, $message = '')
{
if (0 !== \strpos($value, $prefix)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a value to start with %2$s. Got: %s',
static::valueToString($value),
static::valueToString($prefix)
));
}
}
/**
* @psalm-pure
*
* @param string $value
* @param string $prefix
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function notStartsWith($value, $prefix, $message = '')
{
if (0 === \strpos($value, $prefix)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a value not to start with %2$s. Got: %s',
static::valueToString($value),
static::valueToString($prefix)
));
}
}
/**
* @psalm-pure
*
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function startsWithLetter($value, $message = '')
{
static::string($value);
$valid = isset($value[0]);
if ($valid) {
$locale = \setlocale(LC_CTYPE, 0);
\setlocale(LC_CTYPE, 'C');
$valid = \ctype_alpha($value[0]);
\setlocale(LC_CTYPE, $locale);
}
if (!$valid) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a value to start with a letter. Got: %s',
static::valueToString($value)
));
}
}
/**
* @psalm-pure
*
* @param string $value
* @param string $suffix
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function endsWith($value, $suffix, $message = '')
{
if ($suffix !== \substr($value, -\strlen($suffix))) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a value to end with %2$s. Got: %s',
static::valueToString($value),
static::valueToString($suffix)
));
}
}
/**
* @psalm-pure
*
* @param string $value
* @param string $suffix
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function notEndsWith($value, $suffix, $message = '')
{
if ($suffix === \substr($value, -\strlen($suffix))) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a value not to end with %2$s. Got: %s',
static::valueToString($value),
static::valueToString($suffix)
));
}
}
/**
* @psalm-pure
*
* @param string $value
* @param string $pattern
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function regex($value, $pattern, $message = '')
{
if (!\preg_match($pattern, $value)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'The value %s does not match the expected pattern.',
static::valueToString($value)
));
}
}
/**
* @psalm-pure
*
* @param string $value
* @param string $pattern
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function notRegex($value, $pattern, $message = '')
{
if (\preg_match($pattern, $value, $matches, PREG_OFFSET_CAPTURE)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'The value %s matches the pattern %s (at offset %d).',
static::valueToString($value),
static::valueToString($pattern),
$matches[0][1]
));
}
}
/**
* @psalm-pure
*
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function unicodeLetters($value, $message = '')
{
static::string($value);
if (!\preg_match('/^\p{L}+$/u', $value)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a value to contain only Unicode letters. Got: %s',
static::valueToString($value)
));
}
}
/**
* @psalm-pure
*
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function alpha($value, $message = '')
{
static::string($value);
$locale = \setlocale(LC_CTYPE, 0);
\setlocale(LC_CTYPE, 'C');
$valid = !\ctype_alpha($value);
\setlocale(LC_CTYPE, $locale);
if ($valid) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a value to contain only letters. Got: %s',
static::valueToString($value)
));
}
}
/**
* @psalm-pure
*
* @param string $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function digits($value, $message = '')
{
$locale = \setlocale(LC_CTYPE, 0);
\setlocale(LC_CTYPE, 'C');
$valid = !\ctype_digit($value);
\setlocale(LC_CTYPE, $locale);
if ($valid) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a value to contain digits only. Got: %s',
static::valueToString($value)
));
}
}
/**
* @psalm-pure
*
* @param string $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function alnum($value, $message = '')
{
$locale = \setlocale(LC_CTYPE, 0);
\setlocale(LC_CTYPE, 'C');
$valid = !\ctype_alnum($value);
\setlocale(LC_CTYPE, $locale);
if ($valid) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a value to contain letters and digits only. Got: %s',
static::valueToString($value)
));
}
}
/**
* @psalm-pure
* @psalm-assert lowercase-string $value
*
* @param string $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function lower($value, $message = '')
{
$locale = \setlocale(LC_CTYPE, 0);
\setlocale(LC_CTYPE, 'C');
$valid = !\ctype_lower($value);
\setlocale(LC_CTYPE, $locale);
if ($valid) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a value to contain lowercase characters only. Got: %s',
static::valueToString($value)
));
}
}
/**
* @psalm-pure
* @psalm-assert !lowercase-string $value
*
* @param string $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function upper($value, $message = '')
{
$locale = \setlocale(LC_CTYPE, 0);
\setlocale(LC_CTYPE, 'C');
$valid = !\ctype_upper($value);
\setlocale(LC_CTYPE, $locale);
if ($valid) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a value to contain uppercase characters only. Got: %s',
static::valueToString($value)
));
}
}
/**
* @psalm-pure
*
* @param string $value
* @param int $length
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function length($value, $length, $message = '')
{
if ($length !== static::strlen($value)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a value to contain %2$s characters. Got: %s',
static::valueToString($value),
$length
));
}
}
/**
* Inclusive min.
*
* @psalm-pure
*
* @param string $value
* @param int|float $min
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function minLength($value, $min, $message = '')
{
if (static::strlen($value) < $min) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a value to contain at least %2$s characters. Got: %s',
static::valueToString($value),
$min
));
}
}
/**
* Inclusive max.
*
* @psalm-pure
*
* @param string $value
* @param int|float $max
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function maxLength($value, $max, $message = '')
{
if (static::strlen($value) > $max) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a value to contain at most %2$s characters. Got: %s',
static::valueToString($value),
$max
));
}
}
/**
* Inclusive , so Assert::lengthBetween('asd', 3, 5); passes the assertion.
*
* @psalm-pure
*
* @param string $value
* @param int|float $min
* @param int|float $max
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function lengthBetween($value, $min, $max, $message = '')
{
$length = static::strlen($value);
if ($length < $min || $length > $max) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a value to contain between %2$s and %3$s characters. Got: %s',
static::valueToString($value),
$min,
$max
));
}
}
/**
* Will also pass if $value is a directory, use Assert::file() instead if you need to be sure it is a file.
*
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function fileExists($value, $message = '')
{
static::string($value);
if (!\file_exists($value)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'The file %s does not exist.',
static::valueToString($value)
));
}
}
/**
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function file($value, $message = '')
{
static::fileExists($value, $message);
if (!\is_file($value)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'The path %s is not a file.',
static::valueToString($value)
));
}
}
/**
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function directory($value, $message = '')
{
static::fileExists($value, $message);
if (!\is_dir($value)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'The path %s is no directory.',
static::valueToString($value)
));
}
}
/**
* @param string $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function readable($value, $message = '')
{
if (!\is_readable($value)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'The path %s is not readable.',
static::valueToString($value)
));
}
}
/**
* @param string $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function writable($value, $message = '')
{
if (!\is_writable($value)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'The path %s is not writable.',
static::valueToString($value)
));
}
}
/**
* @psalm-assert class-string $value
*
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function classExists($value, $message = '')
{
if (!\class_exists($value)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected an existing class name. Got: %s',
static::valueToString($value)
));
}
}
/**
* @psalm-pure
* @psalm-template ExpectedType of object
* @psalm-param class-string<ExpectedType> $class
* @psalm-assert class-string<ExpectedType>|ExpectedType $value
*
* @param mixed $value
* @param string|object $class
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function subclassOf($value, $class, $message = '')
{
if (!\is_subclass_of($value, $class)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected a sub-class of %2$s. Got: %s',
static::valueToString($value),
static::valueToString($class)
));
}
}
/**
* @psalm-assert class-string $value
*
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function interfaceExists($value, $message = '')
{
if (!\interface_exists($value)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected an existing interface name. got %s',
static::valueToString($value)
));
}
}
/**
* @psalm-pure
* @psalm-template ExpectedType of object
* @psalm-param class-string<ExpectedType> $interface
* @psalm-assert class-string<ExpectedType> $value
*
* @param mixed $value
* @param mixed $interface
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function implementsInterface($value, $interface, $message = '')
{
if (!\in_array($interface, \class_implements($value))) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected an implementation of %2$s. Got: %s',
static::valueToString($value),
static::valueToString($interface)
));
}
}
/**
* @psalm-pure
* @psalm-param class-string|object $classOrObject
*
* @param string|object $classOrObject
* @param mixed $property
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function propertyExists($classOrObject, $property, $message = '')
{
if (!\property_exists($classOrObject, $property)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected the property %s to exist.',
static::valueToString($property)
));
}
}
/**
* @psalm-pure
* @psalm-param class-string|object $classOrObject
*
* @param string|object $classOrObject
* @param mixed $property
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function propertyNotExists($classOrObject, $property, $message = '')
{
if (\property_exists($classOrObject, $property)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected the property %s to not exist.',
static::valueToString($property)
));
}
}
/**
* @psalm-pure
* @psalm-param class-string|object $classOrObject
*
* @param string|object $classOrObject
* @param mixed $method
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function methodExists($classOrObject, $method, $message = '')
{
if (!(\is_string($classOrObject) || \is_object($classOrObject)) || !\method_exists($classOrObject, $method)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected the method %s to exist.',
static::valueToString($method)
));
}
}
/**
* @psalm-pure
* @psalm-param class-string|object $classOrObject
*
* @param string|object $classOrObject
* @param mixed $method
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function methodNotExists($classOrObject, $method, $message = '')
{
if ((\is_string($classOrObject) || \is_object($classOrObject)) && \method_exists($classOrObject, $method)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected the method %s to not exist.',
static::valueToString($method)
));
}
}
/**
* @psalm-pure
*
* @param array $array
* @param string|int $key
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function keyExists($array, $key, $message = '')
{
if (!(isset($array[$key]) || \array_key_exists($key, $array))) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected the key %s to exist.',
static::valueToString($key)
));
}
}
/**
* @psalm-pure
*
* @param array $array
* @param string|int $key
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function keyNotExists($array, $key, $message = '')
{
if (isset($array[$key]) || \array_key_exists($key, $array)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected the key %s to not exist.',
static::valueToString($key)
));
}
}
/**
* Checks if a value is a valid array key (int or string).
*
* @psalm-pure
* @psalm-assert array-key $value
*
* @param mixed $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function validArrayKey($value, $message = '')
{
if (!(\is_int($value) || \is_string($value))) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected string or integer. Got: %s',
static::typeToString($value)
));
}
}
/**
* Does not check if $array is countable, this can generate a warning on php versions after 7.2.
*
* @param Countable|array $array
* @param int $number
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function count($array, $number, $message = '')
{
static::eq(
\count($array),
$number,
\sprintf(
$message ?: 'Expected an array to contain %d elements. Got: %d.',
$number,
\count($array)
)
);
}
/**
* Does not check if $array is countable, this can generate a warning on php versions after 7.2.
*
* @param Countable|array $array
* @param int|float $min
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function minCount($array, $min, $message = '')
{
if (\count($array) < $min) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected an array to contain at least %2$d elements. Got: %d',
\count($array),
$min
));
}
}
/**
* Does not check if $array is countable, this can generate a warning on php versions after 7.2.
*
* @param Countable|array $array
* @param int|float $max
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function maxCount($array, $max, $message = '')
{
if (\count($array) > $max) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected an array to contain at most %2$d elements. Got: %d',
\count($array),
$max
));
}
}
/**
* Does not check if $array is countable, this can generate a warning on php versions after 7.2.
*
* @param Countable|array $array
* @param int|float $min
* @param int|float $max
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function countBetween($array, $min, $max, $message = '')
{
$count = \count($array);
if ($count < $min || $count > $max) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Expected an array to contain between %2$d and %3$d elements. Got: %d',
$count,
$min,
$max
));
}
}
/**
* @psalm-pure
* @psalm-assert list $array
*
* @param mixed $array
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function isList($array, $message = '')
{
if (!\is_array($array)) {
static::reportInvalidArgument(
$message ?: 'Expected list - non-associative array.'
);
}
if ($array === \array_values($array)) {
return;
}
$nextKey = -1;
foreach ($array as $k => $v) {
if ($k !== ++$nextKey) {
static::reportInvalidArgument(
$message ?: 'Expected list - non-associative array.'
);
}
}
}
/**
* @psalm-pure
* @psalm-assert non-empty-list $array
*
* @param mixed $array
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function isNonEmptyList($array, $message = '')
{
static::isList($array, $message);
static::notEmpty($array, $message);
}
/**
* @psalm-pure
* @psalm-template T
* @psalm-param mixed|array<T> $array
* @psalm-assert array<string, T> $array
*
* @param mixed $array
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function isMap($array, $message = '')
{
if (
!\is_array($array) ||
\array_keys($array) !== \array_filter(\array_keys($array), '\is_string')
) {
static::reportInvalidArgument(
$message ?: 'Expected map - associative array with string keys.'
);
}
}
/**
* @psalm-pure
* @psalm-template T
* @psalm-param mixed|array<T> $array
* @psalm-assert array<string, T> $array
* @psalm-assert !empty $array
*
* @param mixed $array
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function isNonEmptyMap($array, $message = '')
{
static::isMap($array, $message);
static::notEmpty($array, $message);
}
/**
* @psalm-pure
*
* @param string $value
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function uuid($value, $message = '')
{
$value = \str_replace(array('urn:', 'uuid:', '{', '}'), '', $value);
// The nil UUID is special form of UUID that is specified to have all
// 128 bits set to zero.
if ('00000000-0000-0000-0000-000000000000' === $value) {
return;
}
if (!\preg_match('/^[0-9A-Fa-f]{8}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{4}-[0-9A-Fa-f]{12}$/', $value)) {
static::reportInvalidArgument(\sprintf(
$message ?: 'Value %s is not a valid UUID.',
static::valueToString($value)
));
}
}
/**
* @psalm-param class-string<Throwable> $class
*
* @param Closure $expression
* @param string $class
* @param string $message
*
* @throws InvalidArgumentException
*/
public static function throws(Closure $expression, $class = 'Exception', $message = '')
{
static::string($class);
$actual = 'none';
try {
$expression();
} catch (Exception $e) {
$actual = \get_class($e);
if ($e instanceof $class) {
return;
}
} catch (Throwable $e) {
$actual = \get_class($e);
if ($e instanceof $class) {
return;
}
}
static::reportInvalidArgument($message ?: \sprintf(
'Expected to throw "%s", got "%s"',
$class,
$actual
));
}
/**
* @throws BadMethodCallException
*/
public static function __callStatic($name, $arguments)
{
if ('nullOr' === \substr($name, 0, 6)) {
if (null !== $arguments[0]) {
$method = \lcfirst(\substr($name, 6));
\call_user_func_array(array(static::class, $method), $arguments);
}
return;
}
if ('all' === \substr($name, 0, 3)) {
static::isIterable($arguments[0]);
$method = \lcfirst(\substr($name, 3));
$args = $arguments;
foreach ($arguments[0] as $entry) {
$args[0] = $entry;
\call_user_func_array(array(static::class, $method), $args);
}
return;
}
throw new BadMethodCallException('No such method: '.$name);
}
/**
* @param mixed $value
*
* @return string
*/
protected static function valueToString($value)
{
if (null === $value) {
return 'null';
}
if (true === $value) {
return 'true';
}
if (false === $value) {
return 'false';
}
if (\is_array($value)) {
return 'array';
}
if (\is_object($value)) {
if (\method_exists($value, '__toString')) {
return \get_class($value).': '.self::valueToString($value->__toString());
}
if ($value instanceof DateTime || $value instanceof DateTimeImmutable) {
return \get_class($value).': '.self::valueToString($value->format('c'));
}
return \get_class($value);
}
if (\is_resource($value)) {
return 'resource';
}
if (\is_string($value)) {
return '"'.$value.'"';
}
return (string) $value;
}
/**
* @param mixed $value
*
* @return string
*/
protected static function typeToString($value)
{
return \is_object($value) ? \get_class($value) : \gettype($value);
}
protected static function strlen($value)
{
if (!\function_exists('mb_detect_encoding')) {
return \strlen($value);
}
if (false === $encoding = \mb_detect_encoding($value)) {
return \strlen($value);
}
return \mb_strlen($value, $encoding);
}
/**
* @param string $message
*
* @throws InvalidArgumentException
*
* @psalm-pure this method is not supposed to perform side-effects
* @psalm-return never
*/
protected static function reportInvalidArgument($message)
{
throw new InvalidArgumentException($message);
}
private function __construct()
{
}
}

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