test: modify unit test case for apply

[makram93]

update the test case for apply()

[codecov]

Codecov Report

Merging #4052 (0613a4f) into master (bbac0aa) will increase coverage by 0.48%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #4052      +/-   ##
==========================================
+ Coverage   88.33%   88.82%   +0.48%     
==========================================
  Files         186      186              
  Lines       13128    13128              
==========================================
+ Hits        11597    11661      +64     
+ Misses       1531     1467      -64     

Flag	Coverage Δ
daemon	43.06% <ø> (ø)
jina	87.12% <ø> (+0.48%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
jina/peapods/runtimes/zmq/zed.py	91.78% <0.00%> (ø)
jina/helper.py	83.97% <0.00%> (+0.17%)	⬆️
jina/flow/base.py	93.21% <0.00%> (+1.32%)	⬆️
jina/peapods/zmq/__init__.py	90.46% <0.00%> (+1.39%)	⬆️
jina/peapods/runtimes/jinad/__init__.py	88.88% <0.00%> (+1.70%)	⬆️
jina/peapods/peas/__init__.py	87.23% <0.00%> (+2.65%)	⬆️
jina/peapods/pods/__init__.py	88.42% <0.00%> (+3.19%)	⬆️
jina/peapods/pods/compound.py	90.05% <0.00%> (+3.31%)	⬆️
jina/types/arrays/mixins/parallel.py	64.91% <0.00%> (+35.08%)	⬆️

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[github-actions]

Latency summary

Current PR yields:

• 🐎🐎🐎🐎 index QPS at 1727, delta to last 2 avg.: +45%
• 🐎🐎🐎🐎 query QPS at 34, delta to last 2 avg.: +42%
• 🐎🐎🐎🐎 dam extend QPS at 50551, delta to last 2 avg.: +42%
• 🐎🐎🐎🐎 avg flow time within 1.3117 seconds, delta to last 2 avg.: -17%
• 🐢🐢 import jina within 0.3537 seconds, delta to last 2 avg.: -19%

Breakdown

Version	Index QPS	Query QPS	DAM Extend QPS	Avg Flow Time (s)	Import Time (s)
current	1727	34	50551	1.3117	0.3537
2.5.5	1120	20	30994	1.6102	0.4653
2.5.4	1256	26	39727	1.5634	0.4085

Backed by latency-tracking. Further commits will update this comment.

[bwanglzu]

LGTM!