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# ->render()
 -  renders a select tag for the year
 -  renders a select tag for the month
 -  renders a select tag for the day
 -  renders a select tag for the year
 -  renders a select tag for the month
 -  renders a select tag for the day
 -  renders a select tag for the year
 -  renders a select tag for the month
 -  renders a select tag for the day
# pre-epoch date
 -  renders a select tag for the year
 -  renders a select tag for the month
 -  renders a select tag for the day
# date as an array
 -  renders a select tag for the year
 -  renders a select tag for the month
 -  renders a select tag for the day
# invalid date
 -  renders a select tag for the year
 -  renders a select tag for the month
 -  renders a select tag for the day
 -  renders a select tag for the year
 -  renders a select tag for the month
 -  renders a select tag for the day
# number of options in each select
 -  renders a select tag for the 10 years around the current one
 -  renders a select tag for the 12 months in a year
 -  renders a select tag for the 31 days in a month
# can_be_empty option
 -  renders a select tag for the 10 years around the current one
 -  renders a select tag for the 12 months in a year
 -  renders a select tag for the 31 days in a month
# empty_values option
 -  can change the empty values
 -  can change the empty values
 -  can change the empty values
# format option
 -  renders 3 selects with a default / as a separator
 -  renders 3 selects with a default / as a separator
 -  can change the default date format
 -  can change the default date format
 -  can change the default date format
# days / months / years options
 -  can change the default array used for years
 -  can change the default array used for months
 -  can change the default array used for days
# attributes
 -  takes the attributes into account for all the three embedded widgets
 -  takes the attributes into account for all the three embedded widgets
# id_format
 -  uses the id_format
 -  uses the id_format
 -  uses the id_format
# Looks like everything went fine.