Return warnings for performance bar from backend

For each DetailedView subclass, we add a `warnings` array to:

1. The top-level response.
2. Each individual call under the `details` key.

We use the `.thresholds` hash on the DetailedView to determine what's a
warning. If that hash is empty (the default), then the warnings array
will always be empty.

1 files changed, 4 insertions, 4 deletions

diff --git a/spec/lib/peek/views/redis_detailed_spec.rb b/spec/lib/peek/views/redis_detailed_spec.rb
index 61096e6c69e..fa9532226f2 100644
--- a/spec/lib/peek/views/redis_detailed_spec.rb
+++ b/spec/lib/peek/views/redis_detailed_spec.rb
@@ -21,10 +21,10 @@ describe Peek::Views::RedisDetailed, :request_store do
 
       expect(subject.results[:details].count).to eq(1)
       expect(subject.results[:details].first)
-        .to eq({
-                 cmd: expected,
-                 duration: 1000
-               })
+        .to include({
+                      cmd: expected,
+                      duration: 1000
+                    })
     end
   end