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.

12 files changed, 32 insertions, 32 deletions

diff --git a/spec/services/authorize_follow_service_spec.rb b/spec/services/authorize_follow_service_spec.rb
index 8e5d8fb03..888d694b6 100644
--- a/spec/services/authorize_follow_service_spec.rb
+++ b/spec/services/authorize_follow_service_spec.rb
@@ -6,7 +6,7 @@ RSpec.describe AuthorizeFollowService, type: :service do
   subject { AuthorizeFollowService.new }
 
   describe 'local' do
-    let(:bob) { Fabricate(:user, email: 'bob@example.com', account: Fabricate(:account, username: 'bob')).account }
+    let(:bob) { Fabricate(:account, username: 'bob') }
 
     before do
       FollowRequest.create(account: bob, target_account: sender)
@@ -23,7 +23,7 @@ RSpec.describe AuthorizeFollowService, type: :service do
   end
 
   describe 'remote ActivityPub' do
-    let(:bob) { Fabricate(:user, email: 'bob@example.com', account: Fabricate(:account, username: 'bob', domain: 'example.com', protocol: :activitypub, inbox_url: 'http://example.com/inbox')).account }
+    let(:bob) { Fabricate(:account, username: 'bob', domain: 'example.com', protocol: :activitypub, inbox_url: 'http://example.com/inbox') }
 
     before do
       FollowRequest.create(account: bob, target_account: sender)
diff --git a/spec/services/batched_remove_status_service_spec.rb b/spec/services/batched_remove_status_service_spec.rb
index 4203952c6..8f38908cd 100644
--- a/spec/services/batched_remove_status_service_spec.rb
+++ b/spec/services/batched_remove_status_service_spec.rb
@@ -5,7 +5,7 @@ RSpec.describe BatchedRemoveStatusService, type: :service do
 
   let!(:alice)  { Fabricate(:account) }
   let!(:bob)    { Fabricate(:account, username: 'bob', domain: 'example.com') }
-  let!(:jeff)   { Fabricate(:user).account }
+  let!(:jeff)   { Fabricate(:account) }
   let!(:hank)   { Fabricate(:account, username: 'hank', protocol: :activitypub, domain: 'example.com', inbox_url: 'http://example.com/inbox') }
 
   let(:status1) { PostStatusService.new.call(alice, text: 'Hello @bob@example.com') }
diff --git a/spec/services/block_service_spec.rb b/spec/services/block_service_spec.rb
index 3714f09e9..a53e1f928 100644
--- a/spec/services/block_service_spec.rb
+++ b/spec/services/block_service_spec.rb
@@ -6,7 +6,7 @@ RSpec.describe BlockService, type: :service do
   subject { BlockService.new }
 
   describe 'local' do
-    let(:bob) { Fabricate(:user, email: 'bob@example.com', account: Fabricate(:account, username: 'bob')).account }
+    let(:bob) { Fabricate(:account, username: 'bob') }
 
     before do
       subject.call(sender, bob)
@@ -18,7 +18,7 @@ RSpec.describe BlockService, type: :service do
   end
 
   describe 'remote ActivityPub' do
-    let(:bob) { Fabricate(:user, email: 'bob@example.com', account: Fabricate(:account, username: 'bob', protocol: :activitypub, domain: 'example.com', inbox_url: 'http://example.com/inbox')).account }
+    let(:bob) { Fabricate(:account, username: 'bob', protocol: :activitypub, domain: 'example.com', inbox_url: 'http://example.com/inbox') }
 
     before do
       stub_request(:post, 'http://example.com/inbox').to_return(status: 200)
diff --git a/spec/services/fan_out_on_write_service_spec.rb b/spec/services/fan_out_on_write_service_spec.rb
index 4ce110e45..aaf179ce5 100644
--- a/spec/services/fan_out_on_write_service_spec.rb
+++ b/spec/services/fan_out_on_write_service_spec.rb
@@ -3,9 +3,9 @@ require 'rails_helper'
 RSpec.describe FanOutOnWriteService, type: :service do
   let(:last_active_at) { Time.now.utc }
 
-  let!(:alice) { Fabricate(:user, current_sign_in_at: last_active_at, account: Fabricate(:account, username: 'alice')).account }
-  let!(:bob)   { Fabricate(:user, current_sign_in_at: last_active_at, account: Fabricate(:account, username: 'bob')).account }
-  let!(:tom)   { Fabricate(:user, current_sign_in_at: last_active_at, account: Fabricate(:account, username: 'tom')).account }
+  let!(:alice) { Fabricate(:user, current_sign_in_at: last_active_at).account }
+  let!(:bob)   { Fabricate(:user, current_sign_in_at: last_active_at, account_attributes: { username: 'bob' }).account }
+  let!(:tom)   { Fabricate(:user, current_sign_in_at: last_active_at).account }
 
   subject { described_class.new }
 
diff --git a/spec/services/favourite_service_spec.rb b/spec/services/favourite_service_spec.rb
index fc7f58eb4..94a8111dd 100644
--- a/spec/services/favourite_service_spec.rb
+++ b/spec/services/favourite_service_spec.rb
@@ -6,7 +6,7 @@ RSpec.describe FavouriteService, type: :service do
   subject { FavouriteService.new }
 
   describe 'local' do
-    let(:bob)    { Fabricate(:user, email: 'bob@example.com', account: Fabricate(:account, username: 'bob')).account }
+    let(:bob)    { Fabricate(:account) }
     let(:status) { Fabricate(:status, account: bob) }
 
     before do
@@ -19,7 +19,7 @@ RSpec.describe FavouriteService, type: :service do
   end
 
   describe 'remote ActivityPub' do
-    let(:bob)    { Fabricate(:user, email: 'bob@example.com', account: Fabricate(:account, protocol: :activitypub, username: 'bob', domain: 'example.com', inbox_url: 'http://example.com/inbox')).account }
+    let(:bob)    { Fabricate(:account, protocol: :activitypub, username: 'bob', domain: 'example.com', inbox_url: 'http://example.com/inbox') }
     let(:status) { Fabricate(:status, account: bob) }
 
     before do
diff --git a/spec/services/follow_service_spec.rb b/spec/services/follow_service_spec.rb
index 63d6eb3bd..02bc87c58 100644
--- a/spec/services/follow_service_spec.rb
+++ b/spec/services/follow_service_spec.rb
@@ -7,7 +7,7 @@ RSpec.describe FollowService, type: :service do
 
   context 'local account' do
     describe 'locked account' do
-      let(:bob) { Fabricate(:user, email: 'bob@example.com', account: Fabricate(:account, locked: true, username: 'bob')).account }
+      let(:bob) { Fabricate(:account, locked: true, username: 'bob') }
 
       before do
         subject.call(sender, bob)
@@ -19,7 +19,7 @@ RSpec.describe FollowService, type: :service do
     end
 
     describe 'locked account, no reblogs' do
-      let(:bob) { Fabricate(:user, email: 'bob@example.com', account: Fabricate(:account, locked: true, username: 'bob')).account }
+      let(:bob) { Fabricate(:account, locked: true, username: 'bob') }
 
       before do
         subject.call(sender, bob, reblogs: false)
@@ -31,7 +31,7 @@ RSpec.describe FollowService, type: :service do
     end
 
     describe 'unlocked account, from silenced account' do
-      let(:bob) { Fabricate(:user, email: 'bob@example.com', account: Fabricate(:account, username: 'bob')).account }
+      let(:bob) { Fabricate(:account, username: 'bob') }
 
       before do
         sender.touch(:silenced_at)
@@ -44,7 +44,7 @@ RSpec.describe FollowService, type: :service do
     end
 
     describe 'unlocked account, from a muted account' do
-      let(:bob) { Fabricate(:user, email: 'bob@example.com', account: Fabricate(:account, username: 'bob')).account }
+      let(:bob) { Fabricate(:account, username: 'bob') }
 
       before do
         bob.mute!(sender)
@@ -58,7 +58,7 @@ RSpec.describe FollowService, type: :service do
     end
 
     describe 'unlocked account' do
-      let(:bob) { Fabricate(:user, email: 'bob@example.com', account: Fabricate(:account, username: 'bob')).account }
+      let(:bob) { Fabricate(:account, username: 'bob') }
 
       before do
         subject.call(sender, bob)
@@ -71,7 +71,7 @@ RSpec.describe FollowService, type: :service do
     end
 
     describe 'unlocked account, no reblogs' do
-      let(:bob) { Fabricate(:user, email: 'bob@example.com', account: Fabricate(:account, username: 'bob')).account }
+      let(:bob) { Fabricate(:account, username: 'bob') }
 
       before do
         subject.call(sender, bob, reblogs: false)
@@ -84,7 +84,7 @@ RSpec.describe FollowService, type: :service do
     end
 
     describe 'already followed account' do
-      let(:bob) { Fabricate(:user, email: 'bob@example.com', account: Fabricate(:account, username: 'bob')).account }
+      let(:bob) { Fabricate(:account, username: 'bob') }
 
       before do
         sender.follow!(bob)
@@ -97,7 +97,7 @@ RSpec.describe FollowService, type: :service do
     end
 
     describe 'already followed account, turning reblogs off' do
-      let(:bob) { Fabricate(:user, email: 'bob@example.com', account: Fabricate(:account, username: 'bob')).account }
+      let(:bob) { Fabricate(:account, username: 'bob') }
 
       before do
         sender.follow!(bob, reblogs: true)
@@ -110,7 +110,7 @@ RSpec.describe FollowService, type: :service do
     end
 
     describe 'already followed account, turning reblogs on' do
-      let(:bob) { Fabricate(:user, email: 'bob@example.com', account: Fabricate(:account, username: 'bob')).account }
+      let(:bob) { Fabricate(:account, username: 'bob') }
 
       before do
         sender.follow!(bob, reblogs: false)
@@ -124,7 +124,7 @@ RSpec.describe FollowService, type: :service do
   end
 
   context 'remote ActivityPub account' do
-    let(:bob) { Fabricate(:user, account: Fabricate(:account, username: 'bob', domain: 'example.com', protocol: :activitypub, inbox_url: 'http://example.com/inbox')).account }
+    let(:bob) { Fabricate(:account, username: 'bob', domain: 'example.com', protocol: :activitypub, inbox_url: 'http://example.com/inbox') }
 
     before do
       stub_request(:post, "http://example.com/inbox").to_return(:status => 200, :body => "", :headers => {})
diff --git a/spec/services/reject_follow_service_spec.rb b/spec/services/reject_follow_service_spec.rb
index 732cb07f7..e14bfa78d 100644
--- a/spec/services/reject_follow_service_spec.rb
+++ b/spec/services/reject_follow_service_spec.rb
@@ -6,7 +6,7 @@ RSpec.describe RejectFollowService, type: :service do
   subject { RejectFollowService.new }
 
   describe 'local' do
-    let(:bob) { Fabricate(:user, email: 'bob@example.com', account: Fabricate(:account, username: 'bob')).account }
+    let(:bob) { Fabricate(:account) }
 
     before do
       FollowRequest.create(account: bob, target_account: sender)
@@ -23,7 +23,7 @@ RSpec.describe RejectFollowService, type: :service do
   end
 
   describe 'remote ActivityPub' do
-    let(:bob) { Fabricate(:user, email: 'bob@example.com', account: Fabricate(:account, username: 'bob', domain: 'example.com', protocol: :activitypub, inbox_url: 'http://example.com/inbox')).account }
+    let(:bob) { Fabricate(:account, username: 'bob', domain: 'example.com', protocol: :activitypub, inbox_url: 'http://example.com/inbox') }
 
     before do
       FollowRequest.create(account: bob, target_account: sender)
diff --git a/spec/services/remove_status_service_spec.rb b/spec/services/remove_status_service_spec.rb
index 21fb0cd35..fb7c6b462 100644
--- a/spec/services/remove_status_service_spec.rb
+++ b/spec/services/remove_status_service_spec.rb
@@ -3,7 +3,7 @@ require 'rails_helper'
 RSpec.describe RemoveStatusService, type: :service do
   subject { RemoveStatusService.new }
 
-  let!(:alice)  { Fabricate(:account, user: Fabricate(:user)) }
+  let!(:alice)  { Fabricate(:account) }
   let!(:bob)    { Fabricate(:account, username: 'bob', domain: 'example.com') }
   let!(:jeff)   { Fabricate(:account) }
   let!(:hank)   { Fabricate(:account, username: 'hank', protocol: :activitypub, domain: 'example.com', inbox_url: 'http://example.com/inbox') }
diff --git a/spec/services/report_service_spec.rb b/spec/services/report_service_spec.rb
index 454e4d896..7e6a113e0 100644
--- a/spec/services/report_service_spec.rb
+++ b/spec/services/report_service_spec.rb
@@ -3,7 +3,7 @@ require 'rails_helper'
 RSpec.describe ReportService, type: :service do
   subject { described_class.new }
 
-  let(:source_account) { Fabricate(:user).account }
+  let(:source_account) { Fabricate(:account) }
 
   context 'for a remote account' do
     let(:remote_account) { Fabricate(:account, domain: 'example.com', protocol: :activitypub, inbox_url: 'http://example.com/inbox') }
diff --git a/spec/services/unblock_service_spec.rb b/spec/services/unblock_service_spec.rb
index c43ab24b0..10448b340 100644
--- a/spec/services/unblock_service_spec.rb
+++ b/spec/services/unblock_service_spec.rb
@@ -6,7 +6,7 @@ RSpec.describe UnblockService, type: :service do
   subject { UnblockService.new }
 
   describe 'local' do
-    let(:bob) { Fabricate(:user, email: 'bob@example.com', account: Fabricate(:account, username: 'bob')).account }
+    let(:bob) { Fabricate(:account) }
 
     before do
       sender.block!(bob)
@@ -19,7 +19,7 @@ RSpec.describe UnblockService, type: :service do
   end
 
   describe 'remote ActivityPub' do
-    let(:bob) { Fabricate(:user, email: 'bob@example.com', account: Fabricate(:account, username: 'bob', protocol: :activitypub, domain: 'example.com', inbox_url: 'http://example.com/inbox')).account }
+    let(:bob) { Fabricate(:account, username: 'bob', protocol: :activitypub, domain: 'example.com', inbox_url: 'http://example.com/inbox') }
 
     before do
       sender.block!(bob)
diff --git a/spec/services/unfollow_service_spec.rb b/spec/services/unfollow_service_spec.rb
index 7f0b575e4..bb5bef5c9 100644
--- a/spec/services/unfollow_service_spec.rb
+++ b/spec/services/unfollow_service_spec.rb
@@ -6,7 +6,7 @@ RSpec.describe UnfollowService, type: :service do
   subject { UnfollowService.new }
 
   describe 'local' do
-    let(:bob) { Fabricate(:user, email: 'bob@example.com', account: Fabricate(:account, username: 'bob')).account }
+    let(:bob) { Fabricate(:account, username: 'bob') }
 
     before do
       sender.follow!(bob)
@@ -19,7 +19,7 @@ RSpec.describe UnfollowService, type: :service do
   end
 
   describe 'remote ActivityPub' do
-    let(:bob) { Fabricate(:user, email: 'bob@example.com', account: Fabricate(:account, username: 'bob', protocol: :activitypub, domain: 'example.com', inbox_url: 'http://example.com/inbox')).account }
+    let(:bob) { Fabricate(:account, username: 'bob', protocol: :activitypub, domain: 'example.com', inbox_url: 'http://example.com/inbox') }
 
     before do
       sender.follow!(bob)
@@ -37,7 +37,7 @@ RSpec.describe UnfollowService, type: :service do
   end
 
   describe 'remote ActivityPub (reverse)' do
-    let(:bob) { Fabricate(:user, email: 'bob@example.com', account: Fabricate(:account, username: 'bob', protocol: :activitypub, domain: 'example.com', inbox_url: 'http://example.com/inbox')).account }
+    let(:bob) { Fabricate(:account, username: 'bob', protocol: :activitypub, domain: 'example.com', inbox_url: 'http://example.com/inbox') }
 
     before do
       bob.follow!(sender)
diff --git a/spec/services/update_account_service_spec.rb b/spec/services/update_account_service_spec.rb
index 960b26891..c2dc791e4 100644
--- a/spec/services/update_account_service_spec.rb
+++ b/spec/services/update_account_service_spec.rb
@@ -5,9 +5,9 @@ RSpec.describe UpdateAccountService, type: :service do
 
   describe 'switching form locked to unlocked accounts' do
     let(:account) { Fabricate(:account, locked: true) }
-    let(:alice)   { Fabricate(:user, email: 'alice@example.com', account: Fabricate(:account, username: 'alice')).account }
-    let(:bob)     { Fabricate(:user, email: 'bob@example.com', account: Fabricate(:account, username: 'bob')).account }
-    let(:eve)     { Fabricate(:user, email: 'eve@example.com', account: Fabricate(:account, username: 'eve')).account }
+    let(:alice)   { Fabricate(:account) }
+    let(:bob)     { Fabricate(:account) }
+    let(:eve)     { Fabricate(:account) }
 
     before do
       bob.touch(:silenced_at)