Sent from my phone. Please excuse my brevity.
On February 2, 2017 11:58:52 AM PST, Ramiro Barrantes <ramiro at precisionbioassay.com> wrote:
>Yes, so are you suggesting that I create an instance of my S4 class in
>order to test my function.
>
>My understanding is that ideally the test should not depend on any code
>besides the one that I am testing.
>
>I just thought that you could perhaps define a mock class so that I
>would not need to invoke my external constructor function, hence making
>this test focus exclusively on the function that I am trying to test.
>Is it possible to do this in R?
>
>On 2/1/17, 6:57 PM, "David Winsemius" <dwinsemius at comcast.net> wrote:
>
>>
>>> On Feb 1, 2017, at 11:46 AM, Ramiro Barrantes
>>><ramiro at precisionbioassay.com> wrote:
>>>
>>> Hello,
>>>
>>> I have a function that applies to an S4 object which contains a slot
>>>called @analysis:
>>>
>>> function calculation(myObject) {
>>> tmp <- myObjects at analysis
>>> result <- ...operations on analysis...
>>> return result
>>> }
>>>
>>> I am writing a unit test for this function. So I was hoping to
>create
>>>a mock object but I can't figure out how to do it:
>>>
>>> test_that("test calculation function", {
>>> mockMyObject<- mock(?????) #I am not sure what to put here
>>> r<-calculation(mockMyObject)
>>> expect_true(r,0.83625)
>>> })
>>>
>>> How can I create a mock S4 object??
>>
>>I'm not seeing a class definition for any "S4"-classed object. I would
>>expect you to have used `setClass`. I believe that once the class is
>>defined that you should have access to the `new` constructor function.
>>
>>>
>>> Thanks in advance,
>>> Ramiro
>>>
>>> [[alternative HTML version deleted]]
>>
>>R-help is a plain-text mailing list.
>>
>>--
>>
>>David Winsemius
>>Alameda, CA, USA
>>
>
>
>______________________________________________
>R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
>https://stat.ethz.ch/mailman/listinfo/r-help
>PLEASE do read the posting guide
>http://www.R-project.org/posting-guide.html
>and provide commented, minimal, self-contained, reproducible code.