subtest 'Parameter datetime' => sub {

        my $now = dt_from_string();

        my $rs = Koha::Patrons->search({ borrowernumber => { -in => \@borrowernumbers } } );

        $rs->update({ updated_on => $now->clone->subtract( hours => 25 ) });

        is( $rs->filter_by_last_update({ timestamp_column_name => 'updated_on', from => $now })->count, 0, 'All updated yesterday' );

        is( $rs->filter_by_last_update({ timestamp_column_name => 'updated_on', from => $now->clone->subtract( days => 1 ) })->count,

            6, 'Yesterday, truncated from is inclusive' );

        is( $rs->filter_by_last_update({ timestamp_column_name => 'updated_on', from => $now->clone->subtract( days => 1 ),

            datetime => 1 })->count, 0, 'Yesterday, not truncated, one hour too late' );

        is( $rs->filter_by_last_update({ timestamp_column_name => 'updated_on', from => $now->clone->subtract( hours => 25 ),

            datetime => 1 })->count, 6, 'Yesterday - 1h, not truncated, within time frame' );

    };