Mocking HTTP request (POST request) in Scala (using requests-scala) - scala

Question

I am using requests-scala module to make HTTP requests as shown below:
object AEMUtility {
....
def getJWTToken() {
....
val response = requests.post(
s"$imsExp/ims/exchange/jwt/",
headers = Map(
"Content-Type" -> "application/x-www-form-urlencoded"
),
params = Map(
"client_id" -> clientId,
"client_secret" -> clientSecret,
"jwt_token" -> token
)
)
}
}
I want to mock the post request function for writing a Unit test by:
checking the arguments passed in the Mock function and returning a dummy response.
Is there a way to mock installed dependency in scala?
I tried :
"authorize" should "return JWT token if request is valid" in {
val postMock = mock[requests.post]
}
but this gives me error:
Cannot resolve symbol post

Answer 1

The error you got is because requests.post is an instance of Requester (see in source code), mock expects a type parameter. You can't pass an object to it, you can mock its classes, traits, etc. So what you should probably do is trying to mock the case class:
val requester = mock[requests.Requester]
Or the BaseSession trait, which contains the post, get and other methods.
val session = mock[requests.BaseSession]
Or the Session case class, which is the implementation of the BaseSession trait.
val session = mock[requests.Session]
I'm not sure anyways, the library doesn't look test-friendly to me.