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StringProvider.php
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StringProvider.php
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<?php
declare(strict_types=1);
/**
* Copyright (c) 2017-2020 Andreas Möller
*
* For the full copyright and license information, please view
* the LICENSE.md file that was distributed with this source code.
*
* @see https://github.com/ergebnis/test-util
*/
namespace Ergebnis\Test\Util\DataProvider;
use Ergebnis\Test\Util;
final class StringProvider
{
use Util\Helper;
/**
* @return \Generator<string, array{0: string}>
*/
public static function arbitrary(): \Generator
{
yield from self::provideDataForValues(self::values());
}
/**
* @return \Generator<string, array{0: string}>
*/
public static function blank(): \Generator
{
yield from self::provideDataForValuesWhere(self::values(), static function (string $value): bool {
return '' === \trim($value)
&& '' !== $value;
});
}
/**
* @return \Generator<string, array{0: string}>
*/
public static function empty(): \Generator
{
yield from self::provideDataForValuesWhere(self::values(), static function (string $value): bool {
return '' === $value;
});
}
/**
* @return \Generator<string, array{0: string}>
*/
public static function trimmed(): \Generator
{
yield from self::provideDataForValuesWhere(self::values(), static function (string $value): bool {
return \trim($value) === $value
&& '' !== \trim($value);
});
}
/**
* @return \Generator<string, array{0: string}>
*/
public static function untrimmed(): \Generator
{
yield from self::provideDataForValuesWhere(self::values(), static function (string $value): bool {
return \trim($value) !== $value
&& '' !== \trim($value);
});
}
/**
* @return array<string, string>
*/
private static function values(): array
{
$faker = self::faker();
$arbitraryValues = [
'string-arbitrary-sentence' => $faker->sentence,
'string-arbitrary-word' => $faker->word,
];
$whitespaceCharacters = self::whitespaceCharacters();
/** @var array<string, string> $blankValues */
$blankValues = \array_combine(
\array_map(static function (string $key): string {
return \sprintf(
'string-blank-%s',
$key
);
}, \array_keys($whitespaceCharacters)),
$whitespaceCharacters
);
$emptyValues = [
'string-empty' => '',
];
/** @var array<string, string> $untrimmedValues */
$untrimmedValues = \array_combine(
\array_map(static function (string $key): string {
return \sprintf(
'string-untrimmed-%s',
$key
);
}, \array_keys($whitespaceCharacters)),
\array_map(static function (string $whitespaceCharacter) use ($faker): string {
return \sprintf(
'%s%s%s',
\str_repeat(
$whitespaceCharacter,
$faker->numberBetween(1, 5)
),
$faker->word,
\str_repeat(
$whitespaceCharacter,
$faker->numberBetween(1, 5)
)
);
}, $whitespaceCharacters)
);
return \array_merge(
$arbitraryValues,
$blankValues,
$emptyValues,
$untrimmedValues
);
}
private static function whitespaceCharacters(): array
{
return [
'carriage-return' => "\r",
'line-feed' => "\n",
'space' => ' ',
'tab' => "\t",
];
}
}