Hi all, I am new to Ruby on Rails and struggling to finish my class
project.
I have problem with unit testing, if any body could help.

I have a function that updates 'feeds' table. It has a columns: id,
feeddata, lastupdate. feedupdate.
------------------------------------------------------------
The function in method feed.rb is as follows:

 def Feed.updatefeed(feed_id)
     @u = Feed.find(feed_id)
     #response=fetch(@u.sourcelink)
     #...@u.feeddata=response.body
     @u.lastupdate=Time.now
     @u.save!
  end
-------------------------------------------------------------
my test feed_test.rb is as follows:


require File.dirname(__FILE__) + '/../test_helper'

class FeedTest < ActiveSupport::TestCase
 # Replace this with your real tests.
  fixtures :feeds

  def test_truth
    assert true
  end

  def test_updatefeed
     feed1 = Feed.find(:first,:conditions=>["id=?",12])
     Feed.updatefeed(feed1.id)
     assert_equal(Time.now, feed1.lastupdate)
  end

end
----------------------------------------------------------------

fixture:


feed_1:
  id: 1
  sourcelink: http://sports.yahoo.com/ncaaf/teams/aad/ical.ics
  feeddata: testdata
  lastupdate: 2009-02-17 22:42:25
  used: 1
...

feed_12:
  id: 12
  sourcelink: http://icalx.com/public/wesleyrhall/Astronomy.ics
  feeddata: testdata
  lastupdate: 2009-02-17 22:42:25
  used: 1
-------------------------------------------------------------

My 'updatefeed' function is working on application well. But my test
doesn't show the updated 'lastupdated' column date but only the value in
fixture. Shouldn't the fixture value be updated on execution and after
comparison set it back?
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