Various typespec and compilation improvements

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

test/tasks/users_test.exs

@@ -277,7 +277,7 @@ defmodule Mix.Tasks.Mobilizon.UsersTest do
       assert {:ok, %User{confirmed_at: confirmed_at}} = Users.get_user_by_email(@email)
 
       assert output_received ==
-               "An user has been modified with the following information:\n  - email: #{user.email}\n  - Role: #{user.role}\n  - account status: activated on #{confirmed_at} (UTC)\n"
+               "An user has been modified with the following information:\n  - email: #{user.email}\n  - Role: #{user.role}\n  - account status: Activated on #{confirmed_at} (UTC)\n"
 
       refute is_nil(confirmed_at)
 
@@ -308,7 +308,7 @@ defmodule Mix.Tasks.Mobilizon.UsersTest do
                Users.get_user_by_email(@modified_email)
 
       assert output_received ==
-               "An user has been modified with the following information:\n  - email: #{@modified_email}\n  - Role: #{user.role}\n  - account status: activated on #{confirmed_at} (UTC)\n"
+               "An user has been modified with the following information:\n  - email: #{@modified_email}\n  - Role: #{user.role}\n  - account status: Activated on #{confirmed_at} (UTC)\n"
     end
   end
 end

test/web/upload/upload_test.exs

@@ -127,7 +127,8 @@ defmodule Mobilizon.UploadTest do
         filename: "test.txt"
       }
 
-      assert {:error, :mime_type_not_allowed} == Upload.store(file)
+      res = Upload.store(file)
+      assert match?({:error, :mime_type_not_allowed}, res)
     end
 
     test "copies the file to the configured folder with anonymizing filename" do
@@ -189,7 +190,7 @@ defmodule Mobilizon.UploadTest do
 
       refute File.exists?(file)
 
-      assert {:error, "File not_existing/definitely.jpg doesn't exist"} =
+      assert {:error, :enofile} =
                Upload.remove("https://mobilizon.test/media/not_existing/definitely.jpg")
     end
   end