Hello --
Thanks in advance for putting up with a newbie question:)
I added two columns to my Products model. The db migration completed without
error, I added the items to the views, and I tested the expected behavior on
the site itself. The properties can be set, stored, and is displayed later.
I also put some validation in the model, and the errors display perfectly.
So everything is working just as I would expect.
Where I ran into trouble is when I ran the unit tests I have for the
products model. I'm getting errors that say the properties are an "undefined
method". Even for test cases that don't refer to these properties, they are
returning the same error. I assume this is from referencing the model. Why
does everything work correctly on the site, but the test cases don't seem to
recognize the new properties I've added to the model?
Thanks!
Madison
Additional information below:
(note: two new columns are has_case and case_quantity)
*Error:*
C:\webapp\depot>ruby -I test test/unit/product_test.rb
Loaded suite test/unit/product_test
Started
EEEEEE
Finished in 0.218401 seconds.
1) Error:
test_default_case_values(ProductTest):
NoMethodError: undefined method `has_case' for #<Product:0x8c65b60>
test/unit/product_test.rb:53:in `test_default_case_values'
2) Error:
test_if_has_case_must_have_case_quantity(ProductTest):
ActiveRecord::UnknownAttributeError: unknown attribute: has_case
test/unit/product_test.rb:58:in `new'
test/unit/product_test.rb:58:in
`test_if_has_case_must_have_case_quantity'
3) Error:
test_image_url(ProductTest):
NoMethodError: undefined method `case_quantity' for #<Product:0x8c606d0>
test/unit/product_test.rb:36:in `test_image_url'
test/unit/product_test.rb:34:in `each'
test/unit/product_test.rb:34:in `test_image_url'
4) Error:
test_invalid_with_empty_attributes(ProductTest):
NoMethodError: undefined method `case_quantity' for #<Product:0x8c5db20>
test/unit/product_test.rb:10:in `test_invalid_with_empty_attributes'
5) Error:
test_positive_price(ProductTest):
NoMethodError: undefined method `case_quantity' for #<Product:0x8c5af10>
test/unit/product_test.rb:20:in `test_positive_price'
6) Error:
test_unique_title(ProductTest):
NoMethodError: undefined method `case_quantity' for #<Product:0x8c57988>
test/unit/product_test.rb:47:in `test_unique_title'
6 tests, 0 assertions, 0 failures, 6 errors
C:\webapp\depot>
*Model:*
class Product < ActiveRecord::Base
has_many :orders, :through=> :line_items
has_many :line_items
validates_presence_of :title, :description, :image_url, :price
validates_numericality_of :price, :case_quantity
validate :price_must_be_at_least_a_cent, :if_case_must_have_quantity,
:if_quantity_must_have_case
validates_uniqueness_of :title
validates_format_of :image_url,
:with => %r{\.(gif|jpg|png)$}i,
:message => 'must be a URL for GIF, JPG ' + 'or PNG
image.'
protected
def price_must_be_at_least_a_cent
errors.add(:price, 'should be at least 0.01') if price.nil? || price <
0.01
end
def if_case_must_have_quantity
if (has_case == true) && (case_quantity < 1)
errors.add(:case_quantity, ': must set case quantity if this product
can be sold in cases')
end
end
def if_quantity_must_have_case
if (has_case == false) && (case_quantity > 0)
errors.add(:case_quantity, ': must be 0 if product is not sold in
cases')
end
end
def self.find_products_for_sale
find(:all, :order => "title")
end
end
*DB migration:*
class AddCaseAndQuantityToProducts < ActiveRecord::Migration
def self.up
add_column :products, :has_case, :boolean, :default => false
add_column :products, :case_quantity, :integer, :default => 0
end
def self.down
remove_column :products, :has_case
remove_column :products, :case_quantity
end
end
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