[HUDI-975] Add unit tests in TestHoodieTableFileSystemView to test view for non-partitioned table

[cxzl25]

What is the purpose of the pull request

Add unit tests in TestHoodieTableFileSystemView to test view for non-partitioned table

Brief change log

Add unit tests in TestHoodieTableFileSystemView to test view for non-partitioned table

Verify this pull request

This change added tests.

Committer checklist

• Has a corresponding JIRA in PR title & commit

• Commit message is descriptive of the change

• CI is green

• Necessary doc changes done or have another open PR

• For large changes, please consider breaking it into sub-tasks under an umbrella JIRA.

[codecov-commenter]

Codecov Report

Merging #1692 into master will increase coverage by 0.00%.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master    #1692   +/-   ##
=========================================
  Coverage     18.19%   18.20%           
- Complexity      856      857    +1     
=========================================
  Files           348      348           
  Lines         15344    15344           
  Branches       1523     1523           
=========================================
+ Hits           2792     2793    +1     
+ Misses        12195    12193    -2     
- Partials        357      358    +1     

Impacted Files	Coverage Δ	Complexity Δ
...che/hudi/common/table/timeline/TimelineLayout.java	85.71% <0.00%> (-7.15%)	3.00% <0.00%> (ø%)
...apache/hudi/common/fs/HoodieWrapperFileSystem.java	22.69% <0.00%> (+0.70%)	29.00% <0.00%> (+1.00%)

---

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 1a9fef4...400df91. Read the comment docs.

[bvaradar]

Looks good.