Explorations in testing an httpRequestBuilder in Elm 0.19. Uses the elm-lang Book example as a building block for a simple GET request.
This code is compiling, both Main.elm as well as Tests.elm.
The Tests do not pass, and I am conviced testing the building of a request is fruitless. Though the hepler function that builds the request is priceless.
The reason for the failure has to do with the implementation of Equality or the (==) operator.
The error message displayed is:
"This test failed because it threw an exception: "Error: Trying to use (==) on functions.
There is no way to know if functions are "the same" in the Elm sense.
Read more about this at https://package.elm-lang.org/packages/elm/core/latest/Basics#==
which describes why it is this way and what the better version will look like."