S3 Test: Remove global state dependencies

config/test.exs

@@ -147,6 +147,9 @@ config :pleroma, Pleroma.PromEx, disabled: true
 
 # Mox definitions. Only read during compile time.
 config :pleroma, Pleroma.User.Backup, config_impl: Pleroma.UnstubbedConfigMock
+config :pleroma, Pleroma.Uploaders.S3, ex_aws_impl: Pleroma.Uploaders.S3.ExAwsMock
+config :pleroma, Pleroma.Uploaders.S3, config_impl: Pleroma.UnstubbedConfigMock
+config :pleroma, Pleroma.Upload, config_impl: Pleroma.UnstubbedConfigMock
 
 if File.exists?("./config/test.secret.exs") do
   import_config "test.secret.exs"

lib/pleroma/upload.ex

@@ -34,7 +34,6 @@ defmodule Pleroma.Upload do
 
   """
   alias Ecto.UUID
-  alias Pleroma.Config
   alias Pleroma.Maps
   alias Pleroma.Web.ActivityPub.Utils
   require Logger
@@ -76,6 +75,8 @@ defmodule Pleroma.Upload do
     :path
   ]
 
+  @config_impl Application.compile_env(:pleroma, [__MODULE__, :config_impl], Pleroma.Config)
+
   defp get_description(upload) do
     case {upload.description, Pleroma.Config.get([Pleroma.Upload, :default_description])} do
       {description, _} when is_binary(description) -> description
@@ -244,18 +245,18 @@ defmodule Pleroma.Upload do
   defp url_from_spec(_upload, _base_url, {:url, url}), do: url
 
   def base_url do
-    uploader = Config.get([Pleroma.Upload, :uploader])
-    upload_base_url = Config.get([Pleroma.Upload, :base_url])
-    public_endpoint = Config.get([uploader, :public_endpoint])
+    uploader = @config_impl.get([Pleroma.Upload, :uploader])
+    upload_base_url = @config_impl.get([Pleroma.Upload, :base_url])
+    public_endpoint = @config_impl.get([uploader, :public_endpoint])
 
     case uploader do
       Pleroma.Uploaders.Local ->
         upload_base_url || Pleroma.Web.Endpoint.url() <> "/media/"
 
       Pleroma.Uploaders.S3 ->
-        bucket = Config.get([Pleroma.Uploaders.S3, :bucket])
-        truncated_namespace = Config.get([Pleroma.Uploaders.S3, :truncated_namespace])
-        namespace = Config.get([Pleroma.Uploaders.S3, :bucket_namespace])
+        bucket = @config_impl.get([Pleroma.Uploaders.S3, :bucket])
+        truncated_namespace = @config_impl.get([Pleroma.Uploaders.S3, :truncated_namespace])
+        namespace = @config_impl.get([Pleroma.Uploaders.S3, :bucket_namespace])
 
         bucket_with_namespace =
           cond do

lib/pleroma/uploaders/s3.ex

@@ -6,7 +6,8 @@ defmodule Pleroma.Uploaders.S3 do
   @behaviour Pleroma.Uploaders.Uploader
   require Logger
 
-  alias Pleroma.Config
+  @ex_aws_impl Application.compile_env(:pleroma, [__MODULE__, :ex_aws_impl], ExAws)
+  @config_impl Application.compile_env(:pleroma, [__MODULE__, :config_impl], Pleroma.Config)
 
   # The file name is re-encoded with S3's constraints here to comply with previous
   # links with less strict filenames
@@ -22,7 +23,7 @@ defmodule Pleroma.Uploaders.S3 do
 
   @impl true
   def put_file(%Pleroma.Upload{} = upload) do
-    config = Config.get([__MODULE__])
+    config = @config_impl.get([__MODULE__])
     bucket = Keyword.get(config, :bucket)
     streaming = Keyword.get(config, :streaming_enabled)
 
@@ -56,7 +57,7 @@ defmodule Pleroma.Uploaders.S3 do
         ])
       end
 
-    case ExAws.request(op) do
+    case @ex_aws_impl.request(op) do
       {:ok, _} ->
         {:ok, {:file, s3_name}}
 
@@ -69,9 +70,9 @@ defmodule Pleroma.Uploaders.S3 do
   @impl true
   def delete_file(file) do
     [__MODULE__, :bucket]
-    |> Config.get()
+    |> @config_impl.get()
     |> ExAws.S3.delete_object(file)
-    |> ExAws.request()
+    |> @ex_aws_impl.request()
     |> case do
       {:ok, %{status_code: 204}} -> :ok
       error -> {:error, inspect(error)}
@@ -83,3 +84,7 @@ defmodule Pleroma.Uploaders.S3 do
     String.replace(name, @regex, "-")
   end
 end
+
+defmodule Pleroma.Uploaders.S3.ExAwsAPI do
+  @callback request(op :: ExAws.Operation.t()) :: {:ok, ExAws.Operation.t()} | {:error, term()}
+end

test/pleroma/uploaders/s3_test.exs

@@ -3,22 +3,27 @@
 # SPDX-License-Identifier: AGPL-3.0-only
 
 defmodule Pleroma.Uploaders.S3Test do
-  use Pleroma.DataCase
+  use Pleroma.DataCase, async: true
 
   alias Pleroma.Uploaders.S3
+  alias Pleroma.Uploaders.S3.ExAwsMock
+  alias Pleroma.UnstubbedConfigMock, as: ConfigMock
 
-  import Mock
+  import Mox
   import ExUnit.CaptureLog
 
-  setup do
-    clear_config([Pleroma.Upload, :uploader], Pleroma.Uploaders.S3)
-    clear_config([Pleroma.Upload, :base_url], "https://s3.amazonaws.com")
-    clear_config([Pleroma.Uploaders.S3])
-    clear_config([Pleroma.Uploaders.S3, :bucket], "test_bucket")
-  end
-
   describe "get_file/1" do
-    test "it returns path to local folder for files" do
+    test "it returns url for files" do
+      ConfigMock
+      |> expect(:get, 6, fn key ->
+        [
+          {Pleroma.Upload,
+           [uploader: Pleroma.Uploaders.S3, base_url: "https://s3.amazonaws.com"]},
+          {Pleroma.Uploaders.S3, [bucket: "test_bucket"]}
+        ]
+        |> get_in(key)
+      end)
+
       assert S3.get_file("test_image.jpg") == {
                :ok,
                {:url, "https://s3.amazonaws.com/test_bucket/test_image.jpg"}
@@ -26,13 +31,16 @@ defmodule Pleroma.Uploaders.S3Test do
     end
 
     test "it returns path without bucket when truncated_namespace set to ''" do
-      clear_config([Pleroma.Uploaders.S3],
-        bucket: "test_bucket",
-        bucket_namespace: "myaccount",
-        truncated_namespace: ""
-      )
-
-      clear_config([Pleroma.Upload, :base_url], "https://s3.amazonaws.com")
+      ConfigMock
+      |> expect(:get, 6, fn key ->
+        [
+          {Pleroma.Upload,
+           [uploader: Pleroma.Uploaders.S3, base_url: "https://s3.amazonaws.com"]},
+          {Pleroma.Uploaders.S3,
+           [bucket: "test_bucket", truncated_namespace: "", bucket_namespace: "myaccount"]}
+        ]
+        |> get_in(key)
+      end)
 
       assert S3.get_file("test_image.jpg") == {
                :ok,
@@ -41,10 +49,15 @@ defmodule Pleroma.Uploaders.S3Test do
     end
 
     test "it returns path with bucket namespace when namespace is set" do
-      clear_config([Pleroma.Uploaders.S3],
-        bucket: "test_bucket",
-        bucket_namespace: "family"
-      )
+      ConfigMock
+      |> expect(:get, 6, fn key ->
+        [
+          {Pleroma.Upload,
+           [uploader: Pleroma.Uploaders.S3, base_url: "https://s3.amazonaws.com"]},
+          {Pleroma.Uploaders.S3, [bucket: "test_bucket", bucket_namespace: "family"]}
+        ]
+        |> get_in(key)
+      end)
 
       assert S3.get_file("test_image.jpg") == {
                :ok,
@@ -62,28 +75,42 @@ defmodule Pleroma.Uploaders.S3Test do
         tempfile: Path.absname("test/instance_static/add/shortcode.png")
       }
 
+      ConfigMock
+      |> expect(:get, fn [Pleroma.Uploaders.S3] ->
+        [
+          bucket: "test_bucket"
+        ]
+      end)
+
       [file_upload: file_upload]
     end
 
     test "save file", %{file_upload: file_upload} do
-      with_mock ExAws, request: fn _ -> {:ok, :ok} end do
-        assert S3.put_file(file_upload) == {:ok, {:file, "test_folder/image-tet.jpg"}}
-      end
+      ExAwsMock
+      |> expect(:request, fn _req -> {:ok, %{status_code: 200}} end)
+
+      assert S3.put_file(file_upload) == {:ok, {:file, "test_folder/image-tet.jpg"}}
     end
 
     test "returns error", %{file_upload: file_upload} do
-      with_mock ExAws, request: fn _ -> {:error, "S3 Upload failed"} end do
-        assert capture_log(fn ->
-                 assert S3.put_file(file_upload) == {:error, "S3 Upload failed"}
-               end) =~ "Elixir.Pleroma.Uploaders.S3: {:error, \"S3 Upload failed\"}"
-      end
+      ExAwsMock
+      |> expect(:request, fn _req -> {:error, "S3 Upload failed"} end)
+
+      assert capture_log(fn ->
+               assert S3.put_file(file_upload) == {:error, "S3 Upload failed"}
+             end) =~ "Elixir.Pleroma.Uploaders.S3: {:error, \"S3 Upload failed\"}"
     end
   end
 
   describe "delete_file/1" do
-    test_with_mock "deletes file", ExAws, request: fn _req -> {:ok, %{status_code: 204}} end do
+    test "deletes file" do
+      ExAwsMock
+      |> expect(:request, fn _req -> {:ok, %{status_code: 204}} end)
+
+      ConfigMock
+      |> expect(:get, fn [Pleroma.Uploaders.S3, :bucket] -> "test_bucket" end)
+
       assert :ok = S3.delete_file("image.jpg")
-      assert_called(ExAws.request(:_))
     end
   end
 end

test/support/mocks.ex

@@ -31,3 +31,5 @@ Mox.defmock(Pleroma.UnstubbedConfigMock, for: Pleroma.Config.Getting)
 Mox.defmock(Pleroma.LoggerMock, for: Pleroma.Logging)
 
 Mox.defmock(Pleroma.User.Backup.ProcessorMock, for: Pleroma.User.Backup.ProcessorAPI)
+
+Mox.defmock(Pleroma.Uploaders.S3.ExAwsMock, for: Pleroma.Uploaders.S3.ExAwsAPI)