Use flushdb, not flushall, in specs

Some specs need a clean Redis state to run successfully. We want to add
per-environment isolation using redis databases, but to do that, we
need to use flushdb instead of flushall.

ee/spec/lib/gitlab/geo/event_gap_tracking_spec.rb

@@ -2,7 +2,7 @@
 
 require 'spec_helper'
 
-RSpec.describe Gitlab::Geo::EventGapTracking, :clean_gitlab_redis_cache do
+RSpec.describe Gitlab::Geo::EventGapTracking, :clean_gitlab_redis_shared_state do
   let(:previous_event_id) { 7 }
   let(:gap_id) { previous_event_id + 1 }
   let(:event_id_with_gap) { previous_event_id + 2 }

spec/features/merge_request/user_sees_pipelines_spec.rb

@@ -137,7 +137,7 @@ RSpec.describe 'Merge request > User sees pipelines', :js do
         check_head_pipeline(expected_project: parent_project)
       end
 
-      it 'does not create a pipeline in the parent project when user cancels the action' do
+      it 'does not create a pipeline in the parent project when user cancels the action', :clean_gitlab_redis_cache, :clean_gitlab_redis_shared_state do
         visit project_merge_request_path(parent_project, merge_request)
 
         create_merge_request_pipeline

spec/helpers/projects_helper_spec.rb

@@ -138,7 +138,7 @@ RSpec.describe ProjectsHelper do
     end
   end
 
-  describe "#project_list_cache_key", :clean_gitlab_redis_shared_state do
+  describe "#project_list_cache_key", :clean_gitlab_redis_cache do
     let(:project) { project_with_repo }
 
     before do

spec/lib/gitlab/rate_limit_helpers_spec.rb

@@ -2,7 +2,7 @@
 
 require 'spec_helper'
 
-RSpec.describe Gitlab::RateLimitHelpers, :clean_gitlab_redis_shared_state do
+RSpec.describe Gitlab::RateLimitHelpers, :clean_gitlab_redis_cache do
   let(:limiter_class) do
     Class.new do
       include ::Gitlab::RateLimitHelpers

spec/lib/gitlab/sidekiq_status_spec.rb

@@ -2,8 +2,8 @@
 
 require 'spec_helper'
 
-RSpec.describe Gitlab::SidekiqStatus do
-  describe '.set', :clean_gitlab_redis_shared_state do
+RSpec.describe Gitlab::SidekiqStatus, :clean_gitlab_redis_queues, :clean_gitlab_redis_shared_state do
+  describe '.set' do
     it 'stores the job ID' do
       described_class.set('123')
 
@@ -16,7 +16,7 @@ RSpec.describe Gitlab::SidekiqStatus do
     end
   end
 
-  describe '.unset', :clean_gitlab_redis_shared_state do
+  describe '.unset' do
     it 'removes the job ID' do
       described_class.set('123')
       described_class.unset('123')
@@ -29,7 +29,7 @@ RSpec.describe Gitlab::SidekiqStatus do
     end
   end
 
-  describe '.all_completed?', :clean_gitlab_redis_shared_state do
+  describe '.all_completed?' do
     it 'returns true if all jobs have been completed' do
       expect(described_class.all_completed?(%w(123))).to eq(true)
     end
@@ -41,7 +41,7 @@ RSpec.describe Gitlab::SidekiqStatus do
     end
   end
 
-  describe '.running?', :clean_gitlab_redis_shared_state do
+  describe '.running?' do
     it 'returns true if job is running' do
       described_class.set('123')
 
@@ -53,7 +53,7 @@ RSpec.describe Gitlab::SidekiqStatus do
     end
   end
 
-  describe '.num_running', :clean_gitlab_redis_shared_state do
+  describe '.num_running' do
     it 'returns 0 if all jobs have been completed' do
       expect(described_class.num_running(%w(123))).to eq(0)
     end
@@ -66,7 +66,7 @@ RSpec.describe Gitlab::SidekiqStatus do
     end
   end
 
-  describe '.num_completed', :clean_gitlab_redis_shared_state do
+  describe '.num_completed' do
     it 'returns 1 if all jobs have been completed' do
       expect(described_class.num_completed(%w(123))).to eq(1)
     end
@@ -88,7 +88,7 @@ RSpec.describe Gitlab::SidekiqStatus do
     end
   end
 
-  describe 'completed', :clean_gitlab_redis_shared_state do
+  describe 'completed' do
     it 'returns the completed job' do
       expect(described_class.completed_jids(%w(123))).to eq(['123'])
     end

spec/models/concerns/cache_markdown_field_spec.rb

@@ -75,7 +75,7 @@ RSpec.describe CacheMarkdownField, :clean_gitlab_redis_cache do
       end
 
       it 'returns false when the local version was bumped' do
-        allow(Gitlab::CurrentSettings.current_application_settings).to receive(:local_markdown_version).and_return(2)
+        stub_application_setting(local_markdown_version: 2)
         thing.cached_markdown_version = cache_version
 
         is_expected.to be_falsy
@@ -88,7 +88,7 @@ RSpec.describe CacheMarkdownField, :clean_gitlab_redis_cache do
       end
 
       it 'returns true when the cached version is just right' do
-        allow(Gitlab::CurrentSettings.current_application_settings).to receive(:local_markdown_version).and_return(2)
+        stub_application_setting(local_markdown_version: 2)
         thing.cached_markdown_version = cache_version + 2
 
         is_expected.to be_truthy

spec/requests/api/branches_spec.rb

@@ -21,7 +21,7 @@ RSpec.describe API::Branches do
     stub_feature_flags(branch_list_keyset_pagination: false)
   end
 
-  describe "GET /projects/:id/repository/branches", :use_clean_rails_redis_caching do
+  describe "GET /projects/:id/repository/branches", :use_clean_rails_redis_caching, :clean_gitlab_redis_shared_state do
     let(:route) { "/projects/#{project_id}/repository/branches" }
 
     shared_examples_for 'repository branches' do

spec/requests/api/ci/runner/jobs_trace_spec.rb

@@ -2,7 +2,7 @@
 
 require 'spec_helper'
 
-RSpec.describe API::Ci::Runner, :clean_gitlab_redis_shared_state do
+RSpec.describe API::Ci::Runner, :clean_gitlab_redis_trace_chunks do
   include StubGitlabCalls
   include RedisHelpers
   include WorkhorseHelpers
@@ -142,7 +142,7 @@ RSpec.describe API::Ci::Runner, :clean_gitlab_redis_shared_state do
 
           context 'when redis data are flushed' do
             before do
-              redis_shared_state_cleanup!
+              redis_trace_chunks_cleanup!
             end
 
             it 'has empty trace' do

spec/services/design_management/copy_design_collection/queue_service_spec.rb

@@ -39,7 +39,7 @@ RSpec.describe DesignManagement::CopyDesignCollection::QueueService, :clean_gitl
       expect { subject }.to change { target_issue.design_collection.copy_state }.from('ready').to('in_progress')
     end
 
-    it 'queues a DesignManagement::CopyDesignCollectionWorker' do
+    it 'queues a DesignManagement::CopyDesignCollectionWorker', :clean_gitlab_redis_queues do
       expect { subject }.to change(DesignManagement::CopyDesignCollectionWorker.jobs, :size).by(1)
     end
 

spec/services/event_create_service_spec.rb

@@ -2,7 +2,7 @@
 
 require 'spec_helper'
 
-RSpec.describe EventCreateService do
+RSpec.describe EventCreateService, :clean_gitlab_redis_cache, :clean_gitlab_redis_shared_state do
   let(:service) { described_class.new }
 
   let_it_be(:user, reload: true) { create :user }
@@ -50,7 +50,7 @@ RSpec.describe EventCreateService do
     end
   end
 
-  describe 'Merge Requests', :clean_gitlab_redis_shared_state do
+  describe 'Merge Requests' do
     describe '#open_mr' do
       subject(:open_mr) { service.open_mr(merge_request, merge_request.author) }
 
@@ -194,7 +194,7 @@ RSpec.describe EventCreateService do
     end
   end
 
-  describe '#wiki_event', :clean_gitlab_redis_shared_state do
+  describe '#wiki_event' do
     let_it_be(:user) { create(:user) }
     let_it_be(:wiki_page) { create(:wiki_page) }
     let_it_be(:meta) { create(:wiki_page_meta, :for_wiki_page, wiki_page: wiki_page) }
@@ -247,7 +247,7 @@ RSpec.describe EventCreateService do
     end
   end
 
-  describe '#push', :clean_gitlab_redis_shared_state do
+  describe '#push' do
     let(:push_data) do
       {
         commits: [
@@ -272,7 +272,7 @@ RSpec.describe EventCreateService do
     end
   end
 
-  describe '#bulk_push', :clean_gitlab_redis_shared_state do
+  describe '#bulk_push' do
     let(:push_data) do
       {
         action: :created,
@@ -306,7 +306,7 @@ RSpec.describe EventCreateService do
     end
   end
 
-  describe 'design events', :clean_gitlab_redis_shared_state do
+  describe 'design events' do
     let_it_be(:design) { create(:design, project: project) }
     let_it_be(:author) { user }
 

spec/services/git/branch_push_service_spec.rb

@@ -554,24 +554,13 @@ RSpec.describe Git::BranchPushService, services: true do
     end
   end
 
-  describe "housekeeping" do
+  describe "housekeeping", :clean_gitlab_redis_cache, :clean_gitlab_redis_queues, :clean_gitlab_redis_shared_state do
     let(:housekeeping) { Repositories::HousekeepingService.new(project) }
 
     before do
-      # Flush any raw key-value data stored by the housekeeping code.
-      Gitlab::Redis::Cache.with { |conn| conn.flushall }
-      Gitlab::Redis::Queues.with { |conn| conn.flushall }
-      Gitlab::Redis::SharedState.with { |conn| conn.flushall }
-
       allow(Repositories::HousekeepingService).to receive(:new).and_return(housekeeping)
     end
 
-    after do
-      Gitlab::Redis::Cache.with { |conn| conn.flushall }
-      Gitlab::Redis::Queues.with { |conn| conn.flushall }
-      Gitlab::Redis::SharedState.with { |conn| conn.flushall }
-    end
-
     it 'does not perform housekeeping when not needed' do
       expect(housekeeping).not_to receive(:execute)
 

spec/services/members/create_service_spec.rb

@@ -2,7 +2,7 @@
 
 require 'spec_helper'
 
-RSpec.describe Members::CreateService, :aggregate_failures, :clean_gitlab_redis_shared_state, :sidekiq_inline do
+RSpec.describe Members::CreateService, :aggregate_failures, :clean_gitlab_redis_cache, :clean_gitlab_redis_shared_state, :sidekiq_inline do
   let_it_be(:source) { create(:project) }
   let_it_be(:user) { create(:user) }
   let_it_be(:member) { create(:user) }

spec/support/redis/redis_helpers.rb

@@ -5,21 +5,21 @@ module RedisHelpers
 
   # Usage: performance enhancement
   def redis_cache_cleanup!
-    Gitlab::Redis::Cache.with(&:flushall)
+    Gitlab::Redis::Cache.with(&:flushdb)
   end
 
   # Usage: SideKiq, Mailroom, CI Runner, Workhorse, push services
   def redis_queues_cleanup!
-    Gitlab::Redis::Queues.with(&:flushall)
+    Gitlab::Redis::Queues.with(&:flushdb)
   end
 
   # Usage: session state, rate limiting
   def redis_shared_state_cleanup!
-    Gitlab::Redis::SharedState.with(&:flushall)
+    Gitlab::Redis::SharedState.with(&:flushdb)
   end
 
   # Usage: CI trace chunks
   def redis_trace_chunks_cleanup!
-    Gitlab::Redis::TraceChunks.with(&:flushall)
+    Gitlab::Redis::TraceChunks.with(&:flushdb)
   end
 end

spec/support/shared_contexts/unique_ip_check_shared_context.rb

@@ -5,9 +5,9 @@ RSpec.shared_context 'unique ips sign in limit' do
   let(:request_context) { Gitlab::RequestContext.instance }
 
   before do
-    Gitlab::Redis::Cache.with(&:flushall)
-    Gitlab::Redis::Queues.with(&:flushall)
-    Gitlab::Redis::SharedState.with(&:flushall)
+    redis_cache_cleanup!
+    redis_queues_cleanup!
+    redis_shared_state_cleanup!
   end
 
   before do