I developped a web site with Ruby on Rails, but I get a problem during the testing. I have a parent table called "orders" and a child table called "line_items". I created some data for the test in the files "test/fixtures/orders.yml" and "test/fixtures/line_items.yml". In the file "test/unit/order_test.rb" I wrote some code to test the "Add", "Update" and "Destroy" for my model"Order". My problem is that on the "Update" I try to update a quantity which is a field of my table "line_items" which is a child of my table "orders". For that test I used the following code: def test_update assert_equal 2, @order.line_items.first.quantity @order.line_items.first.quantity = 4 assert @order.save, @order.errors.full_messages.join("; ") @order.reload assert_equal 4, @order.line_items.first.quantity end And I get the following result: 1> Failure: test_update<OrderTest> [test/unit/order_test.rb:25]: <4> expected but was <2>. I tried lots of different things, but I always get that error. I really don't know why. Here's the declaration of my model order.rb class Order < ActiveRecord::Base has_many :line_items, :exclusively_dependent => true end Here's the declaration of my model line_item.rb class LineItem < ActiveRecord::Base belongs_to :order end And I put at the begining of the order_test.rb file. fixtures :orders, :line_items I guess I'm doing wrong, maybe it's not the way to update a child row or I probably miss something, unless we can't update a child row through a parent model. If someone has the answer and can help me to figure out why the update doesn't work, that will be great. Thank you.
on 2006-06-03 00:01