Experimental Async Refreshes API (#34918)

spec/models/home_feed_spec.rb

@@ -32,7 +32,7 @@ RSpec.describe HomeFeed do
 
     context 'when feed is being generated' do
       before do
-        redis.set("account:#{account.id}:regeneration", true)
+        redis.hset("account:#{account.id}:regeneration", { 'status' => 'running' })
       end
 
       it 'returns nothing' do
@@ -44,9 +44,19 @@ RSpec.describe HomeFeed do
   end
 
   describe '#regenerating?' do
+    context 'when an old-style string key is still in use' do
+      it 'upgrades the key to a hash' do
+        redis.set("account:#{account.id}:regeneration", true)
+
+        expect(subject.regenerating?).to be true
+
+        expect(redis.type("account:#{account.id}:regeneration")).to eq 'hash'
+      end
+    end
+
     context 'when feed is being generated' do
       before do
-        redis.set("account:#{account.id}:regeneration", true)
+        redis.hset("account:#{account.id}:regeneration", { 'status' => 'running' })
       end
 
       it 'returns `true`' do
@@ -55,13 +65,35 @@ RSpec.describe HomeFeed do
     end
 
     context 'when feed is not being generated' do
-      it 'returns `false`' do
-        expect(subject.regenerating?).to be false
+      context 'when the job is marked as finished' do
+        before do
+          redis.hset("account:#{account.id}:regeneration", { 'status' => 'finished' })
+        end
+
+        it 'returns `false`' do
+          expect(subject.regenerating?).to be false
+        end
+      end
+
+      context 'when the job key is missing' do
+        it 'returns `false`' do
+          expect(subject.regenerating?).to be false
+        end
       end
     end
   end
 
   describe '#regeneration_in_progress!' do
+    context 'when an old-style string key is still in use' do
+      it 'upgrades the key to a hash' do
+        redis.set("account:#{account.id}:regeneration", true)
+
+        subject.regeneration_in_progress!
+
+        expect(redis.type("account:#{account.id}:regeneration")).to eq 'hash'
+      end
+    end
+
     it 'sets the corresponding key in redis' do
       expect(redis.exists?("account:#{account.id}:regeneration")).to be false
 
@@ -72,12 +104,22 @@ RSpec.describe HomeFeed do
   end
 
   describe '#regeneration_finished!' do
-    it 'removes the corresponding key from redis' do
-      redis.set("account:#{account.id}:regeneration", true)
+    context 'when an old-style string key is still in use' do
+      it 'upgrades the key to a hash' do
+        redis.set("account:#{account.id}:regeneration", true)
+
+        subject.regeneration_finished!
+
+        expect(redis.type("account:#{account.id}:regeneration")).to eq 'hash'
+      end
+    end
+
+    it "sets the corresponding key's status to 'finished'" do
+      redis.hset("account:#{account.id}:regeneration", { 'status' => 'running' })
 
       subject.regeneration_finished!
 
-      expect(redis.exists?("account:#{account.id}:regeneration")).to be false
+      expect(redis.hget("account:#{account.id}:regeneration", 'status')).to eq 'finished'
     end
   end
 end