Added spec for trace archiving.

app/models/ci/build_trace_chunk.rb

@@ -21,7 +21,7 @@ module Ci
 
     def self.delayed_cleanup_blk
       ids = all.redis.pluck(:build_id, :chunk_index).map do |data|
-        "gitlab:ci:trace:#{data.first}:chunks:#{data.second}:data"
+        "gitlab:ci:trace:#{data.first}:chunks:#{data.second}"
       end
 
       puts "before cleanup: #{ids.count}"

spec/models/ci/build_trace_chunk_spec.rb

@@ -360,9 +360,11 @@ describe Ci::BuildTraceChunk, :clean_gitlab_redis_shared_state do
       end
     end
 
-    context 'when build is destroyed' do
+    context 'when traces are archived' do
       let(:subject) do
-        project.builds.destroy_all
+        project.builds.each do |build|
+          build.success!
+        end
       end
 
       it_behaves_like 'deletes all build_trace_chunk and data in redis'