On Fri, Jan 16, 2009 at 3:29 AM, Ken Wegener <kgwco...@yahoo.com> wrote:
>
> I'm new to rspec and looking for way to test a validation I added to a model.
>
> The test checks to see that if field1 has a value then field2 must be nil
> and vice versa.
>
> -------------------------------
> When I did the rspec_scaffold it generated one test which worked
>
> before :each do
> @valid_attributes = {
> :field1 = "value for field1"
> :field2 = "value for field2"
> }
>
> MyTest.create!(@valid_attributes)
> end
>
> it "should create a new instance given valid attributes" do
> MyTest.create!(@valid_attributes)
> end
>
> ---------------------------------
> Before coding I modified the test file as follows
>
> it "should create a new instance given valid attributes" do
>
> @valid_attributes1 = {
> :field1 = "value for field1"
> :field2 = nil
> }
>
> MyTest.create!(@valid_attributes1)
>
> @valid_attributes2 = {
> :field1 = nil
> :field2 = "value for field2"
> }
>
> MyTest.create!(@valid_attributes2)
> end
>
> it "should not create a new instance given incompatible attribute values" do
>
> @invalid_attributes1 = {
> :field1 = "value for field1"
> :field2 = "value for field2"
> }
>
> MyTest.create!(@invalid_attributes) # I don't know how to test that the
> save failed!!
> end
>
> naturally the first two test failed and the last one as written didn't.
>
> after coding my validation the first two pass and naturally last one didn't.
>
> How do I test that the create failed.
> --
> View this message in context:
> http://www.nabble.com/rspec-model-testing---test-on-user-defined-validation--How-do-I-test-that-the-create-failed.-tp21465687p21465687.html
> Sent from the rspec-users mailing list archive at Nabble.com.
>
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>
Hi Ken,
I would write the specs like:
describe MyModel do
it "should be valid when field1 is set and field2 is nil" do
new_my_model(:field1 => "foo", :field2 => nil).should be_valid
end
it "should be valid when field2 is set and field1 is nil" do
new_my_model(:field1 => nil, :field2 => "bar").should be_valid
end
it "should not be valid when field1 and field2 are set" do
new_my_model(:field1 => "foo", :field2 => "bar").should_not be_valid
end
end
new_my_model is coming from fixjour [1], but you could just use
MyModel.new if you want. The key is that you get a new instance with
the attributes set as you want and then ask it if it's valid.
[1] http://github.com/nakajima/fixjour/tree/master
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