Utf8Test.php

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<?php
if ( PHP_SAPI != 'cli' ) {
    die( "Run me from the command line please.\n" );
}

require_once 'UtfNormalDefines.php';
require_once 'UtfNormalUtil.php';
require_once 'UtfNormal.php';
mb_internal_encoding( "utf-8" );

$verbose = false;
#$verbose = true;

$in = fopen( "UTF-8-test.txt", "rt" );
if ( !$in ) {
    print "Couldn't open UTF-8-test.txt -- can't run tests.\n";
    print "If necessary, manually download this file. It can be obtained at\n";
    print "http://www.cl.cam.ac.uk/~mgk25/ucs/examples/UTF-8-test.txt\n";
    exit( -1 );
}

$columns = 0;
while ( false !== ( $line = fgets( $in ) ) ) {
    $matches = array();
    if ( preg_match( '/^(Here come the tests:\s*)\|$/', $line, $matches ) ) {
        $columns = strpos( $line, '|' );
        break;
    }
}

if ( !$columns ) {
    print "Something seems to be wrong; couldn't extract line length.\n";
    print "Check that UTF-8-test.txt was downloaded correctly from\n";
    print "http://www.cl.cam.ac.uk/~mgk25/ucs/examples/UTF-8-test.txt\n";
    exit( -1 );
}

# print "$columns\n";

$ignore = array(
    # These two lines actually seem to be corrupt
    '2.1.1', '2.2.1' );

$exceptions = array(
    # Tests that should mark invalid characters due to using long
    # sequences beyond what is now considered legal.
    '2.1.5', '2.1.6', '2.2.4', '2.2.5', '2.2.6', '2.3.5',

    # Literal 0xffff, which is illegal
    '2.2.3' );

$longTests = array(
    # These tests span multiple lines
    '3.1.9', '3.2.1', '3.2.2', '3.2.3', '3.2.4', '3.2.5',
    '3.4' );

# These tests are not in proper subsections
$sectionTests = array( '3.4' );

$section = null;
$test = '';
$failed = 0;
$success = 0;
$total = 0;
while ( false !== ( $line = fgets( $in ) ) ) {
    $matches = array();
    if ( preg_match( '/^(\d+)\s+(.*?)\s*\|/', $line, $matches ) ) {
        $section = $matches[1];
        print $line;
        continue;
    }
    if ( preg_match( '/^(\d+\.\d+\.\d+)\s*/', $line, $matches ) ) {
        $test = $matches[1];

        if ( in_array( $test, $ignore ) ) {
            continue;
        }
        if ( in_array( $test, $longTests ) ) {
            $line = fgets( $in );

            // @codingStandardsIgnoreStart Generic.CodeAnalysis.ForLoopWithTestFunctionCall.NotAllowed
            for ( $line = fgets( $in ); !preg_match( '/^\s+\|/', $line ); $line = fgets( $in ) ) {
                // @codingStandardsIgnoreEnd

                testLine( $test, $line, $total, $success, $failed, $columns, $exceptions, $verbose );
            }
        } else {
            testLine( $test, $line, $total, $success, $failed, $columns, $exceptions, $verbose );
        }
    }
}

if ( $failed ) {
    echo "\nFailed $failed tests.\n";
    echo "UTF-8 DECODER TEST FAILED\n";
    exit ( -1 );
}

echo "UTF-8 DECODER TEST SUCCESS!\n";
exit ( 0 );

function testLine( $test, $line, &$total, &$success, &$failed, $columns, $exceptions, $verbose ) {
    $stripped = $line;
    UtfNormal::quickisNFCVerify( $stripped );

    $same = ( $line == $stripped );
    $len = mb_strlen( substr( $stripped, 0, strpos( $stripped, '|' ) ) );
    if ( $len == 0 ) {
        $len = strlen( substr( $stripped, 0, strpos( $stripped, '|' ) ) );
    }

    $ok = $same ^ ( $test >= 3 );

    $ok ^= in_array( $test, $exceptions );

    $ok &= ( $columns == $len );

    $total++;
    if ( $ok ) {
        $success++;
    } else {
        $failed++;
    }

    if ( $verbose || !$ok ) {
        print str_replace( "\n", "$len\n", $stripped );
    }
}