Fix crash when filtering for “dormant” relationships (#27306)

spec/models/relationship_filter_spec.rb

@@ -6,32 +6,60 @@ describe RelationshipFilter do
   let(:account) { Fabricate(:account) }
 
   describe '#results' do
-    context 'when default params are used' do
-      subject do
-        described_class.new(account, 'order' => 'active').results
+    let(:account_of_7_months) { Fabricate(:account_stat, statuses_count: 1, last_status_at: 7.months.ago).account }
+    let(:account_of_1_day)    { Fabricate(:account_stat, statuses_count: 1, last_status_at: 1.day.ago).account }
+    let(:account_of_3_days)   { Fabricate(:account_stat, statuses_count: 1, last_status_at: 3.days.ago).account }
+    let(:silent_account)      { Fabricate(:account_stat, statuses_count: 0, last_status_at: nil).account }
+
+    before do
+      account.follow!(account_of_7_months)
+      account.follow!(account_of_1_day)
+      account.follow!(account_of_3_days)
+      account.follow!(silent_account)
+    end
+
+    context 'when ordering by last activity' do
+      context 'when not filtering' do
+        subject do
+          described_class.new(account, 'order' => 'active').results
+        end
+
+        it 'returns followings ordered by last activity' do
+          expect(subject).to eq [account_of_1_day, account_of_3_days, account_of_7_months, silent_account]
+        end
       end
 
-      before do
-        add_following_account_with(last_status_at: 7.days.ago)
-        add_following_account_with(last_status_at: 1.day.ago)
-        add_following_account_with(last_status_at: 3.days.ago)
+      context 'when filtering for dormant accounts' do
+        subject do
+          described_class.new(account, 'order' => 'active', 'activity' => 'dormant').results
+        end
+
+        it 'returns dormant followings ordered by last activity' do
+          expect(subject).to eq [account_of_7_months, silent_account]
+        end
+      end
+    end
+
+    context 'when ordering by account creation' do
+      context 'when not filtering' do
+        subject do
+          described_class.new(account, 'order' => 'recent').results
+        end
+
+        it 'returns followings ordered by last account creation' do
+          expect(subject).to eq [silent_account, account_of_3_days, account_of_1_day, account_of_7_months]
+        end
       end
 
-      it 'returns followings ordered by last activity' do
-        expected_result = account.following.eager_load(:account_stat).reorder(nil).by_recent_status
+      context 'when filtering for dormant accounts' do
+        subject do
+          described_class.new(account, 'order' => 'recent', 'activity' => 'dormant').results
+        end
 
-        expect(subject).to eq expected_result
+        it 'returns dormant followings ordered by last activity' do
+          expect(subject).to eq [silent_account, account_of_7_months]
+        end
       end
     end
   end
-
-  def add_following_account_with(last_status_at:)
-    following_account = Fabricate(:account)
-    Fabricate(:account_stat, account: following_account,
-                             last_status_at: last_status_at,
-                             statuses_count: 1,
-                             following_count: 0,
-                             followers_count: 0)
-    Fabricate(:follow, account: account, target_account: following_account).account
-  end
 end