ReverseChronologicalPagerTest.php

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<?php

class ReverseChronologicalPagerTest extends MediaWikiLangTestCase {

    public function testGetDateCond() {
        $pager = $this->getMockForAbstractClass( 'ReverseChronologicalPager' );
        $timestamp = MWTimestamp::getInstance();
        $db = wfGetDB( DB_MASTER );

        $currYear = $timestamp->format( 'Y' );
        $currMonth = $timestamp->format( 'n' );

        // Test that getDateCond sets and returns mOffset
        $this->assertEquals( $pager->getDateCond( 2006, 6 ), $pager->mOffset );

        // Test year and month
        $pager->getDateCond( 2006, 6 );
        $this->assertEquals( $pager->mOffset, $db->timestamp( '20060701000000' ) );

        // Test year, month, and day
        $pager->getDateCond( 2006, 6, 5 );
        $this->assertEquals( $pager->mOffset, $db->timestamp( '20060606000000' ) );

        // Test month overflow into the next year
        $pager->getDateCond( 2006, 12 );
        $this->assertEquals( $pager->mOffset, $db->timestamp( '20070101000000' ) );

        // Test day overflow to the next month
        $pager->getDateCond( 2006, 6, 30 );
        $this->assertEquals( $pager->mOffset, $db->timestamp( '20060701000000' ) );

        // Test invalid month (should use end of year)
        $pager->getDateCond( 2006, -1 );
        $this->assertEquals( $pager->mOffset, $db->timestamp( '20070101000000' ) );

        // Test invalid day (should use end of month)
        $pager->getDateCond( 2006, 6, 1337 );
        $this->assertEquals( $pager->mOffset, $db->timestamp( '20060701000000' ) );

        // Test last day of year
        $pager->getDateCond( 2006, 12, 31 );
        $this->assertEquals( $pager->mOffset, $db->timestamp( '20070101000000' ) );

        // Test invalid day that overflows to next year
        $pager->getDateCond( 2006, 12, 32 );
        $this->assertEquals( $pager->mOffset, $db->timestamp( '20070101000000' ) );

        // Test month past current month (should use previous year)
        if ( $currMonth < 5 ) {
            $pager->getDateCond( -1, 5 );
            $this->assertEquals( $pager->mOffset, $db->timestamp( $currYear - 1 . '0601000000' ) );
        }
        if ( $currMonth < 12 ) {
            $pager->getDateCond( -1, 12 );
            $this->assertEquals( $pager->mOffset, $db->timestamp( $currYear . '0101000000' ) );
        }
    }
}