IPTCTest.php

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<?php
class IPTCTest extends MediaWikiTestCase {
        public function testRecognizeUtf8() {
                // utf-8 is the only one used in practise.
                $res = IPTC::getCharset( "\x1b%G" );
                $this->assertEquals( 'UTF-8', $res );
        }

        public function testIPTCParseNoCharset88591() {
                // basically IPTC for keyword with value of 0xBC which is 1/4 in iso-8859-1
                // This data doesn't specify a charset. We're supposed to guess
                // (which basically means utf-8 if valid, windows 1252 (iso 8859-1) if not)
                $iptcData = "Photoshop 3.0\08BIM\4\4\0\0\0\0\0\x06\x1c\x02\x19\x00\x01\xBC";
                $res = IPTC::Parse( $iptcData );
                $this->assertEquals( array( '¼' ), $res['Keywords'] );
        }

        /* This one contains a sequence that's valid iso 8859-1 but not valid utf8 */
        /* \xC3 = Ã, \xB8 = ¸  */
        public function testIPTCParseNoCharset88591b() {
                $iptcData = "Photoshop 3.0\08BIM\4\4\0\0\0\0\0\x09\x1c\x02\x19\x00\x04\xC3\xC3\xC3\xB8";
                $res = IPTC::Parse( $iptcData );
                $this->assertEquals( array( 'ÃÃø' ), $res['Keywords'] );
        }

        /* Same as testIPTCParseNoCharset88591b, but forcing the charset to utf-8.
         * What should happen is the first "\xC3\xC3" should be dropped as invalid,
         * leaving \xC3\xB8, which is ø
         */
        public function testIPTCParseForcedUTFButInvalid() {
                $iptcData = "Photoshop 3.0\08BIM\4\4\0\0\0\0\0\x11\x1c\x02\x19\x00\x04\xC3\xC3\xC3\xB8"
                        . "\x1c\x01\x5A\x00\x03\x1B\x25\x47";
                $res = IPTC::Parse( $iptcData );
                $this->assertEquals( array( 'ø' ), $res['Keywords'] );
        }

        public function testIPTCParseNoCharsetUTF8() {
                $iptcData = "Photoshop 3.0\08BIM\4\4\0\0\0\0\0\x07\x1c\x02\x19\x00\x02¼";
                $res = IPTC::Parse( $iptcData );
                $this->assertEquals( array( '¼' ), $res['Keywords'] );
        }

        // Testing something that has 2 values for keyword
        public function testIPTCParseMulti() {
                $iptcData = /* identifier */ "Photoshop 3.0\08BIM\4\4"
                        /* length */ . "\0\0\0\0\0\x0D"
                        . "\x1c\x02\x19" . "\x00\x01" . "\xBC"
                        . "\x1c\x02\x19" . "\x00\x02" . "\xBC\xBD";
                $res = IPTC::Parse( $iptcData );
                $this->assertEquals( array( '¼', '¼½' ), $res['Keywords'] );
        }

        public function testIPTCParseUTF8() {
                // This has the magic "\x1c\x01\x5A\x00\x03\x1B\x25\x47" which marks content as UTF8.
                $iptcData = "Photoshop 3.0\08BIM\4\4\0\0\0\0\0\x0F\x1c\x02\x19\x00\x02¼\x1c\x01\x5A\x00\x03\x1B\x25\x47";
                $res = IPTC::Parse( $iptcData );
                $this->assertEquals( array( '¼' ), $res['Keywords'] );
        }

}