tests: implement a facility to wait for a specific event

[fvennetier]

SUMMARY

Implement a facility to wait for a specific event. The event can be specified by type and/or request ID. The purpose of this feature is to speedup tests which previously used time.sleep() to ensure an event had been handled.

ISSUE TYPE

• Feature Pull Request

COMPONENT NAME

• tests

SDS VERSION

openio 4.4.3.dev1

[codecov-io]

Codecov Report

Merging #1741 into 4.4.x will increase coverage by 0.44%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##            4.4.x    #1741      +/-   ##
==========================================
+ Coverage   79.36%   79.79%   +0.44%     
==========================================
  Files         355      371      +16     
  Lines       67086    68728    +1642     
  Branches     6919     6954      +35     
==========================================
+ Hits        53233    54837    +1604     
+ Misses      13853    13787      -66     
- Partials        0      104     +104

Impacted Files	Coverage Δ
...sts/functional/content/test_content_perfectible.py	82.49% <100%> (ø)	⬆️
tests/functional/blob/test_blob.py	99.29% <100%> (+0.19%)	⬆️
tests/utils.py	92.03% <100%> (+4.36%)	⬆️
tests/functional/api/test_objectstorage.py	97.22% <100%> (-0.08%)	⬇️
oio/ecd/app.py	60.12% <0%> (-6.54%)	⬇️
oio/account/client.py	81.61% <0%> (-5.74%)	⬇️
meta2v2/meta2_bean_utils.c	59% <0%> (-1%)	⬇️
oio/api/io.py	85.87% <0%> (-0.53%)	⬇️
oio/rdir/client.py	80.49% <0%> (-0.34%)	⬇️
metautils/lib/comm_converter.c	72.78% <0%> (-0.26%)	⬇️
... and 78 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 81b44d2...3821c82. Read the comment docs.