Testing fields

Hi,

I have a model named ‘applicant’.

Applicant has various fields, one of them is ‘date_of_birth’

I have split the field ‘date of birth’ into three fields:

‘dob_day’, ‘dob_month’, ‘dob_year’

From the view:

<% form_for :applicant, :url=> {:action => “index”} do |f| %>

  • <%= f.label :dob, "Date of birth" %>
    
    <%= f.text_field :dob_day, :maxlength => 2 %>
    
    <%= f.text_field :dob_month, :maxlength => 2 %>
    
    <%= f.text_field :dob_year, :maxlength => 4 %>
    
    <%= error_message_on :applicant, :date_of_birth %>
    

<% end %>

The idea is that the user then types their date of birth into the text

fields in the form DD-MM-YYYY.

As these three fields (‘dob_day’, ‘dob_month’, ‘dob_year’) don’t exist

in the database (only ‘date_of_birth’) does, Rails then looks in the

model, where it finds the following getter and setter methods:

def dob_day=(day)

@dob_day = day

make_date

@dob_day

end

def dob_month=(month)

@dob_month = month

make_date

@dob_month

end

def dob_year=(year)

@dob_year = year

make_date

@dob_year

end

def make_date

if defined? @dob_day and @dob_day != “” and defined? @dob_month and

@dob_month != “” and defined? @dob_year and @dob_year !=""

self.dob = [@dob_day, @dob_month, @dob_year].join(’-’)

else

self.dob = “”

end

end

This has the effect that a string in the form of “01-01-2009” is

returned to the field ‘date_of_birth’

This works great.

My question: how would I write a test to check that if I set ‘dob_day’,

‘dob_month’, ‘dob_year’ to ‘01’, ‘01’, ‘2000’, that the strig

‘01-01-2000’ is returned?

I tried this:

def test_should_return_date_of_birth

applicant = Applicant.new(valid_applicant_attributes(:date_of_birth =>

“”))

date_of_birth_day = “01”

date_of_birth_month = “01”

date_of_birth_year = “1999”

assert_equal “01-01-1999”, applicant.date_of_birth

end

Assuming this is a unit test then I think it should be
application.dob_day = “01” etc.

but got the error:

(“01-01-1999”) expected, but was ("").

And this:

def test_should_return_date_of_birth

applicant = Applicant.new(valid_applicant_attributes(:date_of_birth =>

“”, :date_of_birth_day => “01”, :date_of_birth_month => “01”,

:date_of_birth_year => “1999”))

assert_equal “01-01-09”, applicant.date_of_birth

end

but got the error:

unknown attribute: date_of_birth_year

Again the attriutes are dob_day etc not date_of_birth_day.