extensions/filters/listener/http_inspector coverage

[alyssawilk]

Hello,
The Envoy project has recently started collecting per-extension coverage. You have been tagged with this issue as you are a co-owner of an extension, extensions/filters/listener/http_inspector, which is below the 96.6 percent coverage mark.
Could you please take a look at coverage results (https://storage.googleapis.com/envoy-postsubmit/master/coverage/index.html) and add more tests when you get a chance? Once this is done you should be able to remove your extension from the exempt extensions in test/per_file_coverage.sh
Thanks!
cc @yxue

[yxue]

/assign @yxue

[repokitteh-read-only]

yxue is not allowed to assign users.

🐱

Caused by: a #11995 (comment) was created by @yxue.

see: more, trace.