First time I hear about patch, looks very good actually, thanks!
dimitarvp
kanishka
(also, I recommend matching on req body and params, because it is easy to overlook needing to re-record cassettes if you don’t use precise matching)
test config:
config :exvcr,
vcr_cassette_library_dir: "test/fixture/vcr_cassettes",
custom_cassette_library_dir: "test/fixture/custom_cassettes",
filter_sensitive_data: [
[pattern: "<PASSWORD>.+</PASSWORD>", placeholder: "PASSWORD_PLACEHOLDER"]
],
filter_request_headers: ["Authorization"]
mix.exs
{:exvcr, "~> 0.13.3", [only: :test]}
test
use ExVCR.Mock, adapter: ExVCR.Adapter.Hackney
...
setup_all do
HTTPoison.start()
:ok
end
test "..." do
use_cassette "..." do
# do the api calls
end
...
0
trisolaran
After reading this thread, I finally decided to give ex_vcr a try. So far I was using Bypass to test interactions with external APIs.
I’m using Tesla with Finch as my HTTP client.
So I have old test modules using Bypass and I’m writing a new test module that uses ex_vcr. What I noticed is that, if I run the new test in async mode (which ideally I would like to do), the test interferes with the other async tests that use Bypass. Basically, some tests fail because they don’t get the expected response.
I haven’t dug too much into it yet, but my initial assumption is that this is due to ex_vcr setting up global mocks for Finch. Could this be the issue?
Just checking if any of you has ever encountered this problem before or can give me a hint. Thanks!
2
kanishka
Looks like exvcr uses meck and meck notes the modules have to replaced globally - GitHub - eproxus/meck: A mocking library for Erlang · GitHub - so I don’t think you can use bypass and exvcr in the same test suite while using async.
1
trisolaran
Thanks. Yes that’s what I figured too. meck - unlike Mox - apparently doesn’t support mocks local to a single process.
My workaround is to run the exvcr test synchronously - I have only one for now. As soon as I have more than one exvcr test, I will run them asynchronously in their own separate mix test execution. Best I can do for now I guess.
1
LostKobrakai
Not just apparently. meck replaces the modules bytecode and reloads the module, which can only be done globally to the whole VM.
2