Limit amount of JUnit tests returned

Currently, we do not cap amount of tests returned to frontend,
thus in some extreme cases we can see a MBs of data stored in Redis.

This adds an upper limit of 100 tests per-suite.

We will continue showing the total counters correctly,
but we will limit amount of tests that will be presented.

1 files changed, 5 insertions, 1 deletions

diff --git a/app/services/ci/compare_reports_base_service.rb b/app/services/ci/compare_reports_base_service.rb
index d5625857599..6c2d80d8f45 100644
--- a/app/services/ci/compare_reports_base_service.rb
+++ b/app/services/ci/compare_reports_base_service.rb
@@ -8,7 +8,7 @@ module Ci
         status: :parsed,
         key: key(base_pipeline, head_pipeline),
         data: serializer_class
-          .new(project: project)
+          .new(**serializer_params)
           .represent(comparer).as_json
       }
     rescue Gitlab::Ci::Parsers::ParserError => e
@@ -40,6 +40,10 @@ module Ci
       raise NotImplementedError
     end
 
+    def serializer_params
+      { project: project }
+    end
+
     def get_report(pipeline)
       raise NotImplementedError
     end