rspec users - Jun 2010 - chain argument expectations?

I''m trying to test some code that can loop once or multiple times and
assign some values to another object. I want to test one of the values being
assigned to the object in the loop.

e.g.

class Foo
  def bar
    values = returns_an_array_of_values

    baz = Baz.new

    values.each_with_index do |value, index|
      baz.field1 = Constant
      baz.field2 = index
      baz.field3 = value
    end
  end
end



it "should assign increasing index values to field3" do
  quxxo = mock
  Baz.stub!(:new => quxxo)

  quxxo.should_receive(:field2=).with(1,2,3)
end

This doesn''t work. I tried a few different variants.

  quxxo.should_receive(:field2=).with(1).with(2).with(3)

that doesn''t work either.

Any suggestions on how to set expectations for a single mock to receive the same
message multiple time with different arguments with the express purpose of
validating the arguments?

Thanks...

cr

On Jun 17, 2010, at 11:07 AM, Chuck Remes wrote:
> I''m trying to test some code that can loop once or multiple times
and assign some values to another object. I want to test one of the values being
assigned to the object in the loop.
> 
> e.g.
> 
> class Foo
>  def bar
>    values = returns_an_array_of_values
> 
>    baz = Baz.new
> 
>    values.each_with_index do |value, index|
>      baz.field1 = Constant
>      baz.field2 = index
>      baz.field3 = value
>    end
>  end
> end
> 
> 
> 
> it "should assign increasing index values to field3" do
>  quxxo = mock
>  Baz.stub!(:new => quxxo)
> 
>  quxxo.should_receive(:field2=).with(1,2,3)
> end
> 
> This doesn''t work. I tried a few different variants.
> 
>  quxxo.should_receive(:field2=).with(1).with(2).with(3)
> 
> that doesn''t work either.
> 
> Any suggestions on how to set expectations for a single mock to receive the
same message multiple time with different arguments with the express purpose of
validating the arguments?
quxxo.stub(:field2=)
quxxo.should_receive(:field2=).with(1)
quxxo.should_receive(:field2=).with(2)
quxxo.should_receive(:field2=).with(3)

Cheers,
David

On Jun 17, 2010, at 12:22 PM, David Chelimsky wrote:
> On Jun 17, 2010, at 11:07 AM, Chuck Remes wrote:
> 
>> it "should assign increasing index values to field3" do
>> quxxo = mock
>> Baz.stub!(:new => quxxo)
>> 
>> quxxo.should_receive(:field2=).with(1,2,3)
>> end
>> 
>> This doesn''t work. I tried a few different variants.
>> 
>> quxxo.should_receive(:field2=).with(1).with(2).with(3)
>> 
>> that doesn''t work either.
>> 
>> Any suggestions on how to set expectations for a single mock to receive
the same message multiple time with different arguments with the express purpose
of validating the arguments?
> 
> quxxo.stub(:field2=)
> quxxo.should_receive(:field2=).with(1)
> quxxo.should_receive(:field2=).with(2)
> quxxo.should_receive(:field2=).with(3)
Ah, so obvious in retrospect. Many thanks...

cr