Refactor and improve tests (#17386)

* Change account and user fabricators to simplify and improve tests

- `Fabricate(:account)` implicitly fabricates an associated `user` if
  no `domain` attribute is given (an account with `domain: nil` is
  considered a local account, but no user record was created), unless
  `user: nil` is passed
- `Fabricate(:account, user: Fabricate(:user))` should still be possible
  but is discouraged.

* Fix and refactor tests

- avoid passing unneeded attributes to `Fabricate(:user)` or
  `Fabricate(:account)`
- avoid embedding `Fabricate(:user)` into a `Fabricate(:account)` or the other
  way around
- prefer `Fabricate(:user, account_attributes: …)` to
  `Fabricate(:user, account: Fabricate(:account, …)`
- also, some tests were using remote accounts with local user records, which is
  not representative of production code.

3 files changed, 11 insertions, 10 deletions

diff --git a/spec/controllers/settings/deletes_controller_spec.rb b/spec/controllers/settings/deletes_controller_spec.rb
index 92ab401c9..cd36ecc35 100644
--- a/spec/controllers/settings/deletes_controller_spec.rb
+++ b/spec/controllers/settings/deletes_controller_spec.rb
@@ -17,7 +17,7 @@ describe Settings::DeletesController do
       end
 
       context 'when suspended' do
-        let(:user) { Fabricate(:user, account_attributes: { username: 'alice', suspended_at: Time.now.utc }) }
+        let(:user) { Fabricate(:user, account_attributes: { suspended_at: Time.now.utc }) }
 
         it 'returns http forbidden' do
           get :show
@@ -64,7 +64,7 @@ describe Settings::DeletesController do
         end
 
         context 'when suspended' do
-          let(:user) { Fabricate(:user, account_attributes: { username: 'alice', suspended_at: Time.now.utc }) }
+          let(:user) { Fabricate(:user, account_attributes: { suspended_at: Time.now.utc }) }
 
           it 'returns http forbidden' do
             expect(response).to have_http_status(403)
diff --git a/spec/controllers/settings/migrations_controller_spec.rb b/spec/controllers/settings/migrations_controller_spec.rb
index 048d9de8d..35c5747a0 100644
--- a/spec/controllers/settings/migrations_controller_spec.rb
+++ b/spec/controllers/settings/migrations_controller_spec.rb
@@ -19,8 +19,7 @@ describe Settings::MigrationsController do
     context 'when user is sign in' do
       subject { get :show }
 
-      let(:user) { Fabricate(:user, account: account) }
-      let(:account) { Fabricate(:account, moved_to_account: moved_to_account) }
+      let(:user) { Fabricate(:account, moved_to_account: moved_to_account).user }
 
       before { sign_in user, scope: :user }
 
diff --git a/spec/controllers/settings/profiles_controller_spec.rb b/spec/controllers/settings/profiles_controller_spec.rb
index 1ac286254..ee3aec815 100644
--- a/spec/controllers/settings/profiles_controller_spec.rb
+++ b/spec/controllers/settings/profiles_controller_spec.rb
@@ -3,9 +3,11 @@ require 'rails_helper'
 RSpec.describe Settings::ProfilesController, type: :controller do
   render_views
 
+  let!(:user) { Fabricate(:user) }
+  let(:account) { user.account }
+
   before do
-    @user = Fabricate(:user)
-    sign_in @user, scope: :user
+    sign_in user, scope: :user
   end
 
   describe "GET #show" do
@@ -16,10 +18,12 @@ RSpec.describe Settings::ProfilesController, type: :controller do
   end
 
   describe 'PUT #update' do
+    before do
+      user.account.update(display_name: 'Old name')
+    end
+
     it 'updates the user profile' do
       allow(ActivityPub::UpdateDistributionWorker).to receive(:perform_async)
-      account = Fabricate(:account, user: @user, display_name: 'Old name')
-
       put :update, params: { account: { display_name: 'New name' } }
       expect(account.reload.display_name).to eq 'New name'
       expect(response).to redirect_to(settings_profile_path)
@@ -30,7 +34,6 @@ RSpec.describe Settings::ProfilesController, type: :controller do
   describe 'PUT #update with new profile image' do
     it 'updates profile image' do
       allow(ActivityPub::UpdateDistributionWorker).to receive(:perform_async)
-      account = Fabricate(:account, user: @user, display_name: 'AvatarTest')
       expect(account.avatar.instance.avatar_file_name).to be_nil
 
       put :update, params: { account: { avatar: fixture_file_upload('avatar.gif', 'image/gif') } }
@@ -43,7 +46,6 @@ RSpec.describe Settings::ProfilesController, type: :controller do
   describe 'PUT #update with oversized image' do
     it 'gives the user an error message' do
       allow(ActivityPub::UpdateDistributionWorker).to receive(:perform_async)
-      account = Fabricate(:account, user: @user, display_name: 'AvatarTest')
       put :update, params: { account: { avatar: fixture_file_upload('4096x4097.png', 'image/png') } }
       expect(response.body).to include('images are not supported')
     end