DiffMatchPatch\DiffToolkitTest::testLinesToChars PHP Method

    public function testLinesToChars()
    {
        // TODO throw exception, if charset is one-byte
        mb_internal_encoding('UTF-8');
        // Convert lines down to characters.
        $this->assertEquals(array("

", "
", array("", "alpha\n", "beta\n")), $this->dt->linesToChars("alpha\nbeta\nalpha\n", "beta\nalpha\nbeta\n"));
        $this->assertEquals(array("", "
", array("", "alpha\r\n", "beta\r\n", "\r\n")), $this->dt->linesToChars("", "alpha\r\nbeta\r\n\r\n\r\n"));
        $this->assertEquals(array("
", "", array("", "a", "b")), $this->dt->linesToChars("a", "b"));
        // More than 256 to reveal any 8-bit limitations.
        $n = 300;
        $lineList = array();
        $charList = array();
        for ($x = 1; $x <= $n; $x++) {
            $lineList[] = $x . "\n";
            $charList[] = Utils::unicodeChr($x);
        }
        $this->assertCount($n, $lineList);
        $lines = implode('', $lineList);
        $chars = implode('', $charList);
        $this->assertEquals($n, mb_strlen($chars));
        array_unshift($lineList, "");
        $this->assertEquals(array($chars, "", $lineList), $this->dt->linesToChars($lines, ""));
    }