DateTime validation and testing

rubyonrails-talk
1

Hi!

I have this test:

def test_invalid_date_format   project = Project.new(:name => "Terminar página web",               :user_id => "1",         :deadline => "fsafasdfa")   assert !project.valid?   assert_equal "Deadline has invalid syntax", project.errors.on(:deadline) end

and I have this validation in the model:

protected

def validate   if deadline.nil?     return true   else     begin       dt = DateTime.parse(deadline.to_s)     rescue ArgumentError       errors.add(:deadline, "Deadline has invalid syntax")     end    end end

When I execute this test I have this:

  1) Failure: test_invalid_date_format(ProjectTest)     [project_test.rb:47:in `test_invalid_date_format'      /usr/lib/ruby/gems/1.8/gems/activesupport-2.0.2/lib/active_support/testing/default.rb:7:in `run']: <false> is not true.

How is this possible? Do not Datetime.parse returns false when it is not a correct datetime string? How do you validate and test DateTime fields?