wfTimestampTest.php

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<?php

class WfTimestampTest extends MediaWikiTestCase {
    public function testNormalTimestamps( $input, $format, $output, $desc ) {
        $this->assertEquals( $output, wfTimestamp( $format, $input ), $desc );
    }

    public static function provideNormalTimestamps() {
        $t = gmmktime( 12, 34, 56, 1, 15, 2001 );

        return array(
            // TS_UNIX
            array( $t, TS_MW, '20010115123456', 'TS_UNIX to TS_MW' ),
            array( -30281104, TS_MW, '19690115123456', 'Negative TS_UNIX to TS_MW' ),
            array( $t, TS_UNIX, 979562096, 'TS_UNIX to TS_UNIX' ),
            array( $t, TS_DB, '2001-01-15 12:34:56', 'TS_UNIX to TS_DB' ),

            array( $t, TS_ISO_8601_BASIC, '20010115T123456Z', 'TS_ISO_8601_BASIC to TS_DB' ),

            // TS_MW
            array( '20010115123456', TS_MW, '20010115123456', 'TS_MW to TS_MW' ),
            array( '20010115123456', TS_UNIX, 979562096, 'TS_MW to TS_UNIX' ),
            array( '20010115123456', TS_DB, '2001-01-15 12:34:56', 'TS_MW to TS_DB' ),
            array( '20010115123456', TS_ISO_8601_BASIC, '20010115T123456Z', 'TS_MW to TS_ISO_8601_BASIC' ),

            // TS_DB
            array( '2001-01-15 12:34:56', TS_MW, '20010115123456', 'TS_DB to TS_MW' ),
            array( '2001-01-15 12:34:56', TS_UNIX, 979562096, 'TS_DB to TS_UNIX' ),
            array( '2001-01-15 12:34:56', TS_DB, '2001-01-15 12:34:56', 'TS_DB to TS_DB' ),
            array(
                '2001-01-15 12:34:56',
                TS_ISO_8601_BASIC,
                '20010115T123456Z',
                'TS_DB to TS_ISO_8601_BASIC'
            ),

            # rfc2822 section 3.3
            array( '20010115123456', TS_RFC2822, 'Mon, 15 Jan 2001 12:34:56 GMT', 'TS_MW to TS_RFC2822' ),
            array( 'Mon, 15 Jan 2001 12:34:56 GMT', TS_MW, '20010115123456', 'TS_RFC2822 to TS_MW' ),
            array(
                ' Mon, 15 Jan 2001 12:34:56 GMT',
                TS_MW,
                '20010115123456',
                'TS_RFC2822 with leading space to TS_MW'
            ),
            array(
                '15 Jan 2001 12:34:56 GMT',
                TS_MW,
                '20010115123456',
                'TS_RFC2822 without optional day-of-week to TS_MW'
            ),

            # FWS = ([*WSP CRLF] 1*WSP) / obs-FWS ; Folding white space
            # obs-FWS = 1*WSP *(CRLF 1*WSP) ; Section 4.2
            array( 'Mon, 15         Jan 2001 12:34:56 GMT', TS_MW, '20010115123456', 'TS_RFC2822 to TS_MW' ),

            # WSP = SP / HTAB ; rfc2234
            array(
                "Mon, 15 Jan\x092001 12:34:56 GMT",
                TS_MW,
                '20010115123456',
                'TS_RFC2822 with HTAB to TS_MW'
            ),
            array(
                "Mon, 15 Jan\x09 \x09  2001 12:34:56 GMT",
                TS_MW,
                '20010115123456',
                'TS_RFC2822 with HTAB and SP to TS_MW'
            ),
            array(
                'Sun, 6 Nov 94 08:49:37 GMT',
                TS_MW,
                '19941106084937',
                'TS_RFC2822 with obsolete year to TS_MW'
            ),
        );
    }

    public function testOldTimestamps( $input, $outputType, $output, $message ) {
        $timestamp = wfTimestamp( $outputType, $input );
        if ( substr( $output, 0, 1 ) === '/' ) {
            // Bug 64946: Day of the week calculations for very old
            // timestamps varies from system to system.
            $this->assertRegExp( $output, $timestamp, $message );
        } else {
            $this->assertEquals( $output, $timestamp, $message );
        }
    }

    public static function provideOldTimestamps() {
        return array(
            array(
                '19011213204554',
                TS_RFC2822,
                'Fri, 13 Dec 1901 20:45:54 GMT',
                'Earliest time according to PHP documentation'
            ),
            array( '20380119031407', TS_RFC2822, 'Tue, 19 Jan 2038 03:14:07 GMT', 'Latest 32 bit time' ),
            array( '19011213204552', TS_UNIX, '-2147483648', 'Earliest 32 bit unix time' ),
            array( '20380119031407', TS_UNIX, '2147483647', 'Latest 32 bit unix time' ),
            array( '19011213204552', TS_RFC2822, 'Fri, 13 Dec 1901 20:45:52 GMT', 'Earliest 32 bit time' ),
            array(
                '19011213204551',
                TS_RFC2822,
                'Fri, 13 Dec 1901 20:45:51 GMT', 'Earliest 32 bit time - 1'
            ),
            array( '20380119031408', TS_RFC2822, 'Tue, 19 Jan 2038 03:14:08 GMT', 'Latest 32 bit time + 1' ),
            array( '19011212000000', TS_MW, '19011212000000', 'Convert to itself r74778#c10645' ),
            array( '19011213204551', TS_UNIX, '-2147483649', 'Earliest 32 bit unix time - 1' ),
            array( '20380119031408', TS_UNIX, '2147483648', 'Latest 32 bit unix time + 1' ),
            array( '-2147483649', TS_MW, '19011213204551', '1901 negative unix time to MediaWiki' ),
            array( '-5331871504', TS_MW, '18010115123456', '1801 negative unix time to MediaWiki' ),
            array(
                '0117-08-09 12:34:56',
                TS_RFC2822,
                '/, 09 Aug 0117 12:34:56 GMT$/',
                'Death of Roman Emperor [[Trajan]]'
            ),

            /* @todo FIXME: 00 to 101 years are taken as being in [1970-2069] */
            array( '-58979923200', TS_RFC2822, '/, 01 Jan 0101 00:00:00 GMT$/', '1/1/101' ),
            array( '-62135596800', TS_RFC2822, 'Mon, 01 Jan 0001 00:00:00 GMT', 'Year 1' ),

            /* It is not clear if we should generate a year 0 or not
             * We are completely off RFC2822 requirement of year being
             * 1900 or later.
             */
            array(
                '-62142076800',
                TS_RFC2822,
                'Wed, 18 Oct 0000 00:00:00 GMT',
                'ISO 8601:2004 [[year 0]], also called [[1 BC]]'
            ),
        );
    }

    public function testHttpDate( $input, $output, $desc ) {
        $this->assertEquals( $output, wfTimestamp( TS_MW, $input ), $desc );
    }

    public static function provideHttpDates() {
        return array(
            array( 'Sun, 06 Nov 1994 08:49:37 GMT', '19941106084937', 'RFC 822 date' ),
            array( 'Sunday, 06-Nov-94 08:49:37 GMT', '19941106084937', 'RFC 850 date' ),
            array( 'Sun Nov  6 08:49:37 1994', '19941106084937', "ANSI C's asctime() format" ),
            // See http://www.squid-cache.org/mail-archive/squid-users/200307/0122.html and r77171
            array(
                'Mon, 22 Nov 2010 14:12:42 GMT; length=52626',
                '20101122141242',
                'Netscape extension to HTTP/1.0'
            ),
        );
    }

    public function testTimestampParameter() {
        $now = wfTimestamp( TS_UNIX );
        // We check that wfTimestamp doesn't return false (error) and use a LessThan assert
        // for the cases where the test is run in a second boundary.

        $zero = wfTimestamp( TS_UNIX, 0 );
        $this->assertNotEquals( false, $zero );
        $this->assertLessThan( 5, $zero - $now );

        $empty = wfTimestamp( TS_UNIX, '' );
        $this->assertNotEquals( false, $empty );
        $this->assertLessThan( 5, $empty - $now );

        $null = wfTimestamp( TS_UNIX, null );
        $this->assertNotEquals( false, $null );
        $this->assertLessThan( 5, $null - $now );
    }
}