MediaWiki 1.30.2

[autoinstallsdev/mediawiki.git] / tests / phpunit / includes / libs / StringUtilsTest.php

diff --git a/tests/phpunit/includes/libs/StringUtilsTest.php b/tests/phpunit/includes/libs/StringUtilsTest.php
new file mode 100644 (file)
index 0000000..8075944
--- /dev/null
+++ b/tests/phpunit/includes/libs/StringUtilsTest.php
@@ -0,0 +1,126 @@
+<?php
+
+class StringUtilsTest extends PHPUnit_Framework_TestCase {
+
+       /**
+        * @covers StringUtils::isUtf8
+        * @dataProvider provideStringsForIsUtf8Check
+        */
+       public function testIsUtf8( $expected, $string ) {
+               $this->assertEquals( $expected, StringUtils::isUtf8( $string ),
+                       'Testing string "' . $this->escaped( $string ) . '"' );
+       }
+
+       /**
+        * Print high range characters as a hexadecimal
+        * @param string $string
+        * @return string
+        */
+       function escaped( $string ) {
+               $escaped = '';
+               $length = strlen( $string );
+               for ( $i = 0; $i < $length; $i++ ) {
+                       $char = $string[$i];
+                       $val = ord( $char );
+                       if ( $val > 127 ) {
+                               $escaped .= '\x' . dechex( $val );
+                       } else {
+                               $escaped .= $char;
+                       }
+               }
+
+               return $escaped;
+       }
+
+       /**
+        * See also "UTF-8 decoder capability and stress test" by
+        * Markus Kuhn:
+        * http://www.cl.cam.ac.uk/~mgk25/ucs/examples/UTF-8-test.txt
+        */
+       public static function provideStringsForIsUtf8Check() {
+               // Expected return values for StringUtils::isUtf8()
+               $PASS = true;
+               $FAIL = false;
+
+               return [
+                       'some ASCII' => [ $PASS, 'Some ASCII' ],
+                       'euro sign' => [ $PASS, "Euro sign €" ],
+
+                       'first possible sequence 1 byte' => [ $PASS, "\x00" ],
+                       'first possible sequence 2 bytes' => [ $PASS, "\xc2\x80" ],
+                       'first possible sequence 3 bytes' => [ $PASS, "\xe0\xa0\x80" ],
+                       'first possible sequence 4 bytes' => [ $PASS, "\xf0\x90\x80\x80" ],
+                       'first possible sequence 5 bytes' => [ $FAIL, "\xf8\x88\x80\x80\x80" ],
+                       'first possible sequence 6 bytes' => [ $FAIL, "\xfc\x84\x80\x80\x80\x80" ],
+
+                       'last possible sequence 1 byte' => [ $PASS, "\x7f" ],
+                       'last possible sequence 2 bytes' => [ $PASS, "\xdf\xbf" ],
+                       'last possible sequence 3 bytes' => [ $PASS, "\xef\xbf\xbf" ],
+                       'last possible sequence 4 bytes (U+1FFFFF)' => [ $FAIL, "\xf7\xbf\xbf\xbf" ],
+                       'last possible sequence 5 bytes' => [ $FAIL, "\xfb\xbf\xbf\xbf\xbf" ],
+                       'last possible sequence 6 bytes' => [ $FAIL, "\xfd\xbf\xbf\xbf\xbf\xbf" ],
+
+                       'boundary 1' => [ $PASS, "\xed\x9f\xbf" ],
+                       'boundary 2' => [ $PASS, "\xee\x80\x80" ],
+                       'boundary 3' => [ $PASS, "\xef\xbf\xbd" ],
+                       'boundary 4' => [ $PASS, "\xf2\x80\x80\x80" ],
+                       'boundary 5 (U+FFFFF)' => [ $PASS, "\xf3\xbf\xbf\xbf" ],
+                       'boundary 6 (U+100000)' => [ $PASS, "\xf4\x80\x80\x80" ],
+                       'boundary 7 (U+10FFFF)' => [ $PASS, "\xf4\x8f\xbf\xbf" ],
+                       'boundary 8 (U+110000)' => [ $FAIL, "\xf4\x90\x80\x80" ],
+
+                       'malformed 1' => [ $FAIL, "\x80" ],
+                       'malformed 2' => [ $FAIL, "\xbf" ],
+                       'malformed 3' => [ $FAIL, "\x80\xbf" ],
+                       'malformed 4' => [ $FAIL, "\x80\xbf\x80" ],
+                       'malformed 5' => [ $FAIL, "\x80\xbf\x80\xbf" ],
+                       'malformed 6' => [ $FAIL, "\x80\xbf\x80\xbf\x80" ],
+                       'malformed 7' => [ $FAIL, "\x80\xbf\x80\xbf\x80\xbf" ],
+                       'malformed 8' => [ $FAIL, "\x80\xbf\x80\xbf\x80\xbf\x80" ],
+
+                       'last byte missing 1' => [ $FAIL, "\xc0" ],
+                       'last byte missing 2' => [ $FAIL, "\xe0\x80" ],
+                       'last byte missing 3' => [ $FAIL, "\xf0\x80\x80" ],
+                       'last byte missing 4' => [ $FAIL, "\xf8\x80\x80\x80" ],
+                       'last byte missing 5' => [ $FAIL, "\xfc\x80\x80\x80\x80" ],
+                       'last byte missing 6' => [ $FAIL, "\xdf" ],
+                       'last byte missing 7' => [ $FAIL, "\xef\xbf" ],
+                       'last byte missing 8' => [ $FAIL, "\xf7\xbf\xbf" ],
+                       'last byte missing 9' => [ $FAIL, "\xfb\xbf\xbf\xbf" ],
+                       'last byte missing 10' => [ $FAIL, "\xfd\xbf\xbf\xbf\xbf" ],
+
+                       'extra continuation byte 1' => [ $FAIL, "e\xaf" ],
+                       'extra continuation byte 2' => [ $FAIL, "\xc3\x89\xaf" ],
+                       'extra continuation byte 3' => [ $FAIL, "\xef\xbc\xa5\xaf" ],
+                       'extra continuation byte 4' => [ $FAIL, "\xf0\x9d\x99\xb4\xaf" ],
+
+                       'impossible bytes 1' => [ $FAIL, "\xfe" ],
+                       'impossible bytes 2' => [ $FAIL, "\xff" ],
+                       'impossible bytes 3' => [ $FAIL, "\xfe\xfe\xff\xff" ],
+
+                       'overlong sequences 1' => [ $FAIL, "\xc0\xaf" ],
+                       'overlong sequences 2' => [ $FAIL, "\xc1\xaf" ],
+                       'overlong sequences 3' => [ $FAIL, "\xe0\x80\xaf" ],
+                       'overlong sequences 4' => [ $FAIL, "\xf0\x80\x80\xaf" ],
+                       'overlong sequences 5' => [ $FAIL, "\xf8\x80\x80\x80\xaf" ],
+                       'overlong sequences 6' => [ $FAIL, "\xfc\x80\x80\x80\x80\xaf" ],
+
+                       'maximum overlong sequences 1' => [ $FAIL, "\xc1\xbf" ],
+                       'maximum overlong sequences 2' => [ $FAIL, "\xe0\x9f\xbf" ],
+                       'maximum overlong sequences 3' => [ $FAIL, "\xf0\x8f\xbf\xbf" ],
+                       'maximum overlong sequences 4' => [ $FAIL, "\xf8\x87\xbf\xbf" ],
+                       'maximum overlong sequences 5' => [ $FAIL, "\xfc\x83\xbf\xbf\xbf\xbf" ],
+
+                       'surrogates 1 (U+D799)' => [ $PASS, "\xed\x9f\xbf" ],
+                       'surrogates 2 (U+E000)' => [ $PASS, "\xee\x80\x80" ],
+                       'surrogates 3 (U+D800)' => [ $FAIL, "\xed\xa0\x80" ],
+                       'surrogates 4 (U+DBFF)' => [ $FAIL, "\xed\xaf\xbf" ],
+                       'surrogates 5 (U+DC00)' => [ $FAIL, "\xed\xb0\x80" ],
+                       'surrogates 6 (U+DFFF)' => [ $FAIL, "\xed\xbf\xbf" ],
+                       'surrogates 7 (U+D800 U+DC00)' => [ $FAIL, "\xed\xa0\x80\xed\xb0\x80" ],
+
+                       'noncharacters 1' => [ $PASS, "\xef\xbf\xbe" ],
+                       'noncharacters 2' => [ $PASS, "\xef\xbf\xbf" ],
+               ];
+       }
+}