The Mox documentation has a complete example
trisolaran
xgeek116
Yes, I tried it. I put my current setup in my previous comment, If you have an idea please let me know.
0
wolf4earth
From the example you’ve given here it theoretically should work as you expect. Important to note is that you need to ensure that the mock calling code needs to be part of the same process as the mock defining code.
There’s also a library to deal with injecting mocks into your application code. It’s fairly opinionated but maybe you like it: knigge.
0
trisolaran
Nope. His implementation is always calling the real implementation because the call to http_get_resource is hard-coded. Check the body of fetch_one_external_resource.
He just needs to follow the example in the docs and do something like:
def fetch_one_external_resource(params) do
with {:ok, data} <-
api_module().http_get_resource(params["url"], params["headers"]) do
do_something(data)
...
defp api_module(), do: Application.get_env(:my_app, :api_module, MyApp.MyModule.ExternalSources )
And add:
Application.put_env(:my_app, :api_module, MyApp.MockExternalSources)
to test_helper.exs or the test config.
It’s all in the example, really. Or maybe use a whole different library 
0
wolf4earth
I’m referring to this part of his response
In ExternalSources module, I added :
@api_client Application.compile_env!(:app_name, :api_client)The call to the http_get_resource became :
@api_client.http_get_resource(url, headers)
0