Move includes/normal to includes/libs/normal

Change-Id: Ib530ad9dbe1d3a33dc53ef8b9620f61d4e1a2d62

1 files changed, 102 insertions, 0 deletions

diff --git a/includes/libs/normal/RandomTest.php b/includes/libs/normal/RandomTest.php
new file mode 100644
index 000000000000..0604d7bb78de
--- /dev/null
+++ b/includes/libs/normal/RandomTest.php
@@ -0,0 +1,102 @@
+<?php
+/**
+ * Test feeds random 16-byte strings to both the pure PHP and ICU-based
+ * UtfNormal::cleanUp() code paths, and checks to see if there's a
+ * difference. Will run forever until it finds one or you kill it.
+ *
+ * Copyright (C) 2004 Brion Vibber <brion@pobox.com>
+ * https://www.mediawiki.org/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * @file
+ * @ingroup UtfNormal
+ */
+
+if ( PHP_SAPI != 'cli' ) {
+	die( "Run me from the command line please.\n" );
+}
+
+/** */
+require_once 'UtfNormal.php';
+require_once '../diff/DifferenceEngine.php';
+
+dl( 'php_utfnormal.so' );
+
+# mt_srand( 99999 );
+
+function randomString( $length, $nullOk, $ascii = false ) {
+	$out = '';
+	for ( $i = 0; $i < $length; $i++ )
+		$out .= chr( mt_rand( $nullOk ? 0 : 1, $ascii ? 127 : 255 ) );
+
+	return $out;
+}
+
+/* Duplicate of the cleanUp() path for ICU usage */
+function donorm( $str ) {
+	# We exclude a few chars that ICU would not.
+	$str = preg_replace( '/[\x00-\x08\x0b\x0c\x0e-\x1f]/', UTF8_REPLACEMENT, $str );
+	$str = str_replace( UTF8_FFFE, UTF8_REPLACEMENT, $str );
+	$str = str_replace( UTF8_FFFF, UTF8_REPLACEMENT, $str );
+
+	# UnicodeString constructor fails if the string ends with a head byte.
+	# Add a junk char at the end, we'll strip it off
+	return rtrim( utf8_normalize( $str . "\x01", UtfNormal::UNORM_NFC ), "\x01" );
+}
+
+function showDiffs( $a, $b ) {
+	$ota = explode( "\n", str_replace( "\r\n", "\n", $a ) );
+	$nta = explode( "\n", str_replace( "\r\n", "\n", $b ) );
+
+	$diffs = new Diff( $ota, $nta );
+	$formatter = new TableDiffFormatter();
+	$funky = $formatter->format( $diffs );
+	$matches = array();
+	preg_match_all( '/<(?:ins|del) class="diffchange">(.*?)<\/(?:ins|del)>/', $funky, $matches );
+	foreach ( $matches[1] as $bit ) {
+		$hex = bin2hex( $bit );
+		echo "\t$hex\n";
+	}
+}
+
+$size = 16;
+$n = 0;
+while ( true ) {
+	$n++;
+	echo "$n\n";
+
+	$str = randomString( $size, true );
+	$clean = UtfNormal::cleanUp( $str );
+	$norm = donorm( $str );
+
+	echo strlen( $clean ) . ", " . strlen( $norm );
+	if ( $clean == $norm ) {
+		echo " (match)\n";
+	} else {
+		echo " (FAIL)\n";
+		echo "\traw: " . bin2hex( $str ) . "\n" .
+			"\tphp: " . bin2hex( $clean ) . "\n" .
+			"\ticu: " . bin2hex( $norm ) . "\n";
+		echo "\n\tdiffs:\n";
+		showDiffs( $clean, $norm );
+		die();
+	}
+
+	$str = '';
+	$clean = '';
+	$norm = '';
+}