Do I have to do something special when using Belt.Provider.S3 in a test case? It justs blow up with this error all the time 
(I haveex_aws and sweet_xml in my mix.exs)
16:59:18.658 [error] GenServer Belt terminating
** (RuntimeError) provider Belt.Provider.S3 not registered with Belt
(belt) lib/belt.ex:284: anonymous fn/1 in Belt.init/1
(gen_stage) lib/gen_stage/partition_dispatcher.ex:214: anonymous fn/3 in GenStage.PartitionDispatcher.dispatch/3
(elixir) lib/enum.ex:1811: Enum."-reduce/3-lists^foldl/2-0-"/3
(gen_stage) lib/gen_stage/partition_dispatcher.ex:213: GenStage.PartitionDispatcher.dispatch/3
(gen_stage) lib/gen_stage.ex:2309: GenStage.dispatch_events/3
(gen_stage) lib/gen_stage.ex:1960: GenStage.handle_call/3
(stdlib) gen_server.erl:636: :gen_server.try_handle_call/4
(stdlib) gen_server.erl:665: :gen_server.handle_msg/6
(stdlib) proc_lib.erl:247: :proc_lib.init_p_do_apply/3
Last message (from #PID<0.519.0>): {:store, [%Belt.Provider.S3.Config{access_key_id: "<redacted>", base_url: "https://<redacted>", bucket: "demo-data", host
: "static.bemt.eu", https: true, port: 443, provider: Belt.Provider.S3, region: "us-west-2", secret_access_key: "<redacted>"}, "/Users/kwando/projects/
work/SMS/setup.sh", [key: "840277a243d9f9769a71d56285d2569489fb21747f0d32b4db302c77a561b10c3842c579ffc20c28"]]}
16:59:18.662 [error] GenServer Belt.Provider.Filesystem.Supervisor terminating
** (RuntimeError) provider Belt.Provider.S3 not registered with Belt
(belt) lib/belt.ex:284: anonymous fn/1 in Belt.init/1
(gen_stage) lib/gen_stage/partition_dispatcher.ex:214: anonymous fn/3 in GenStage.PartitionDispatcher.dispatch/3
(elixir) lib/enum.ex:1811: Enum."-reduce/3-lists^foldl/2-0-"/3
(gen_stage) lib/gen_stage/partition_dispatcher.ex:213: GenStage.PartitionDispatcher.dispatch/3
(gen_stage) lib/gen_stage.ex:2309: GenStage.dispatch_events/3
(gen_stage) lib/gen_stage.ex:1960: GenStage.handle_call/3
(stdlib) gen_server.erl:636: :gen_server.try_handle_call/4
(stdlib) gen_server.erl:665: :gen_server.handle_msg/6
(stdlib) proc_lib.erl:247: :proc_lib.init_p_do_apply/3
Last message: {:DOWN, #Reference<0.611478655.3527409665.27844>, :process, #PID<0.311.0>, {%RuntimeError{message: "provider Belt.Provider.S3 not registered with Belt"}, [{Belt, :"-in
it/1-fun-0-", 1, [file: 'lib/belt.ex', line: 284]}, {GenStage.PartitionDispatcher, :"-dispatch/3-fun-0-", 3, [file: 'lib/gen_stage/partition_dispatcher.ex', line: 214]}, {Enum, :"-r
educe/3-lists^foldl/2-0-", 3, [file: 'lib/enum.ex', line: 1811]}, {GenStage.PartitionDispatcher, :dispatch, 3, [file: 'lib/gen_stage/partition_dispatcher.ex', line: 213]}, {GenStage
, :dispatch_events, 3, [file: 'lib/gen_stage.ex', line: 2309]}, {GenStage, :handle_call, 3, [file: 'lib/gen_stage.ex', line: 1960]}, {:gen_server, :try_handle_call, 4, [file: 'gen_s
erver.erl', line: 636]}, {:gen_server, :handle_msg, 6, [file: 'gen_server.erl', line: 665]}, {:proc_lib, :init_p_do_apply, 3, [file: 'proc_lib.erl', line: 247]}]}}
Otherwise you’ll have to build something yourself with ExAWS.
