StringUtilitiesTest.php
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	<?php
	declare(strict_types=1);

	namespace Keruald\OmniTools\Tests\Strings\Multibyte;

	use Keruald\OmniTools\Strings\Multibyte\StringUtilities;
	use PHPUnit\Framework\TestCase;

	class StringUtilitiesTest extends TestCase {

	///
	/// Tests
	///

	/**
	* @dataProvider providePadding
	*/
	public function testPad (
	string $expected,
	string $input, int $padLength, string $padString, int $padType
	) : void {
	$paddedString = StringUtilities::pad(
	$input, $padLength, $padString, $padType, "UTF-8"
	);

	$this->assertEquals($expected, $paddedString);
	}

	public function testPadWithDefaultArguments () : void {
	$this->assertEquals("foo ", StringUtilities::pad("foo", 4));
	$this->assertEquals("foo_", StringUtilities::pad("foo", 4, '_'));
	$this->assertEquals("_foo", StringUtilities::pad("foo", 4, '_', STR_PAD_LEFT));
	}

	public function testSupportedEncoding () : void {
	$this->assertTrue(StringUtilities::isSupportedEncoding("UTF-8"));
	$this->assertFalse(StringUtilities::isSupportedEncoding("notexisting"));
	}

	///
	/// Data providers
	///

	public function providePadding () : iterable {
	// Tests from http://3v4l.org/UnXTF
	// http://web.archive.org/web/20150711100913/http://3v4l.org/UnXTF

	yield ['àèòàFOOàèòà', "FOO", 11, "àèò", STR_PAD_BOTH];
	yield ['àèòFOOàèòà', "FOO", 10, "àèò", STR_PAD_BOTH];
	yield ['àèòBAAZàèòà', "BAAZ", 11, "àèò", STR_PAD_BOTH];
	yield ['àèòBAAZàèò', "BAAZ", 10, "àèò", STR_PAD_BOTH];
	yield ['FOOBAR', "FOOBAR", 6, "àèò", STR_PAD_BOTH];
	yield ['FOOBAR', "FOOBAR", 1, "àèò", STR_PAD_BOTH];
	yield ['FOOBAR', "FOOBAR", 0, "àèò", STR_PAD_BOTH];
	yield ['FOOBAR', "FOOBAR", -10, "àèò", STR_PAD_BOTH];

	yield ['àèòàèòàèFOO', "FOO", 11, "àèò", STR_PAD_LEFT];
	yield ['àèòàèòàFOO', "FOO", 10, "àèò", STR_PAD_LEFT];
	yield ['àèòàèòàBAAZ', "BAAZ", 11, "àèò", STR_PAD_LEFT];
	yield ['àèòàèòBAAZ', "BAAZ", 10, "àèò", STR_PAD_LEFT];
	yield ['FOOBAR', "FOOBAR", 6, "àèò", STR_PAD_LEFT];
	yield ['FOOBAR', "FOOBAR", 1, "àèò", STR_PAD_LEFT];
	yield ['FOOBAR', "FOOBAR", 0, "àèò", STR_PAD_LEFT];
	yield ['FOOBAR', "FOOBAR", -10, "àèò", STR_PAD_LEFT];

	yield ['FOOàèòàèòàè', "FOO", 11, "àèò", STR_PAD_RIGHT];
	yield ['FOOàèòàèòà', "FOO", 10, "àèò", STR_PAD_RIGHT];
	yield ['BAAZàèòàèòà', "BAAZ", 11, "àèò", STR_PAD_RIGHT];
	yield ['BAAZàèòàèò', "BAAZ", 10, "àèò", STR_PAD_RIGHT];
	yield ['FOOBAR', "FOOBAR", 6, "àèò", STR_PAD_RIGHT];
	yield ['FOOBAR', "FOOBAR", 1, "àèò", STR_PAD_RIGHT];
	yield ['FOOBAR', "FOOBAR", 0, "àèò", STR_PAD_RIGHT];
	yield ['FOOBAR', "FOOBAR", -10, "àèò", STR_PAD_RIGHT];
	}
	}

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