StringUtilTest.php

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<?php

namespace Sabre\VObject;

use PHPUnit\Framework\TestCase;

class StringUtilTest extends TestCase {

    function testNonUTF8() {

        $string = StringUtil::isUTF8(chr(0xbf));

        $this->assertEquals(false, $string);

    }

    function testIsUTF8() {

        $string = StringUtil::isUTF8('I 💚 SabreDAV');

        $this->assertEquals(true, $string);

    }

    function testUTF8ControlChar() {

        $string = StringUtil::isUTF8(chr(0x00));

        $this->assertEquals(false, $string);

    }

    function testConvertToUTF8nonUTF8() {

        $string = StringUtil::convertToUTF8(chr(0xbf));

        $this->assertEquals(utf8_encode(chr(0xbf)), $string);

    }

    function testConvertToUTF8IsUTF8() {

        $string = StringUtil::convertToUTF8('I 💚 SabreDAV');

        $this->assertEquals('I 💚 SabreDAV', $string);

    }

    function testConvertToUTF8ControlChar() {

        $string = StringUtil::convertToUTF8(chr(0x00));

        $this->assertEquals('', $string);

    }

}