Testing requests

[wilbertom]

Hello, I'm looking for a way to test against the request sent by a module. My initial intuition was to capture the request during the mock but I'm having trouble doing it in a clean way.

defmodule ApiTest do      
  use ExUnit.Case                  

  setup do                     
    Tesla.Mock.mock fn             
      %{method: :get} = env ->     
        # capture request env here              
        %Tesla.Env{}                         
    end          

    {:ok}        
  end            

  test "issue some request here" do                   
    Api.get("")           
    
    assert request.query == [query: "hello world", token: "12345"]
  end            
end

My second intuition is to create a middleware that pushes the untouched request at the beginning of the pipeline into somewhere I can read from in the test.

I tried using a global variable but couldn't figure out how to do that in elixir but, I didn't spend too much time toying with that idea because then tests would have to always run serially.

[teamon]

You can return the request in mock (fn env -> env end) but it will be processed by middleware stack as response. The alternative is to send a message to current process - https://twitter.com/iteamon/status/851375743284244481?s=20

…

On 24 Mar 2018, 10:01 +0100, Wilberto Morales ***@***.***>, wrote: Hello, I'm looking for a way to test against the request sent by a module. My initial intuition was to capture the request during the mock but I'm having trouble doing it in a clean way. defmodule ApiTest do use ExUnit.Case setup do Tesla.Mock.mock fn %{method: :get} = env -> # capture request env here %Tesla.Env{} end {:ok} end test "issue some request here" do Api.get("") assert request.query == [query: "hello world", token: "12345"] end end My second intuition is to create a middleware that pushes the untouched request at the beginning of the pipeline into somewhere I can read from in the test. I tried using a global variable but couldn't figure out how to do that in elixir but, I didn't spend too much time toying with that idea because then tests would have to always run serially. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub, or mute the thread.

[teamon]

In this case you don’t even need to register the process since Tesla mock runs in the same process so just

# in mock
send self(), env

# in test
assert_receive ...

[wilbertom]

Thank you very much @teamon, I went with sending a message to self.