operator/pkg: unit test utilities

[mohamedawnallah]

Description

In this commit, we unit test utilities on downloader operations and unpacking tar files.

What type of PR is this?

Which issue(s) this PR fixes:
Part of #5491.

Does this PR introduce a user-facing change?:

NONE

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Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 38.60%. Comparing base (c16e52a) to head (49eb96b).
Report is 71 commits behind head on master.

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Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5675      +/-   ##
==========================================
+ Coverage   35.85%   38.60%   +2.75%     
==========================================
  Files         647      650       +3     
  Lines       45070    55122   +10052     
==========================================
+ Hits        16158    21281    +5123     
- Misses      27664    32480    +4816     
- Partials     1248     1361     +113     

Flag	Coverage Δ
unittests	38.60% <100.00%> (+2.75%)	⬆️

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[XiShanYongYe-Chang]

When I run the ut in the windows, it report error:

=== RUN   TestDownloadFile/DownloadFile_FileDownlaoded_
    util_test.go:229: failed to prep before downloading the file, got: failed to create temp file: open C:\Users\C00502~1\AppData\Local\Temp/tempfile-*.txt: The filename, directory name, or volume label syntax is incorrect.
    util_test.go:236: unexpected error, got: failed to download file. url: https://www.example.com/test-file code: 503
    util_test.go:242: failed to verify the actual of download of file: failed   to read file: open C:\Users\C00502~1\AppData\Local\Temp/tempfile-*.txt: The filename, directory name, or volume label syntax is incorrect.
--- FAIL: TestDownloadFile (0.00s)
    --- PASS: TestDownloadFile/DownloadFile_UrlIsNotFound_FailedToGetResponse (0.00s)
    --- PASS: TestDownloadFile/DownloadFile_ServiceIsUnavailable_FailedToReachTheService (0.00s)
    --- FAIL: TestDownloadFile/DownloadFile_FileDownlaoded_ (0.00s)

[mohamedawnallah]

When I run the ut in the windows, it report error:

=== RUN   TestDownloadFile/DownloadFile_FileDownlaoded_
    util_test.go:229: failed to prep before downloading the file, got: failed to create temp file: open C:\Users\C00502~1\AppData\Local\Temp/tempfile-*.txt: The filename, directory name, or volume label syntax is incorrect.
    util_test.go:236: unexpected error, got: failed to download file. url: https://www.example.com/test-file code: 503
    util_test.go:242: failed to verify the actual of download of file: failed   to read file: open C:\Users\C00502~1\AppData\Local\Temp/tempfile-*.txt: The filename, directory name, or volume label syntax is incorrect.
--- FAIL: TestDownloadFile (0.00s)
    --- PASS: TestDownloadFile/DownloadFile_UrlIsNotFound_FailedToGetResponse (0.00s)
    --- PASS: TestDownloadFile/DownloadFile_ServiceIsUnavailable_FailedToReachTheService (0.00s)
    --- FAIL: TestDownloadFile/DownloadFile_FileDownlaoded_ (0.00s)

@XiShanYongYe-Chang Good catch! The current unit testing code assumed it was only targeting the Linux platform, so it used "/" as a separator. I've updated it to use filepath.Join for platform independence. That said, I haven't been able to test it on Windows since I don't have access to one. Could you please test it again and let me know? 🙏

[XiShanYongYe-Chang]

Okay, let me have a retry.

[mohamedawnallah]

I've updated the last commit. @XiShanYongYe-Chang, I realized that I forgot to replace one instance where "/" was used. 😁 Please pull the latest commit! 🙏

[XiShanYongYe-Chang]

It still failed:

=== RUN   TestDownloadFile/DownloadFile_FileDownlaoded_
    util_test.go:230: failed to prep before downloading the file, got: failed to create temp file: open C:\Users\C00502~1\AppData\Local\Temp\tempfile-*.txt: The filename, directory name, or volume label syntax is incorrect.
    util_test.go:237: unexpected error, got: failed to download file. url: https://www.example.com/test-file code: 503
    util_test.go:243: failed to verify the actual of download of file: failed   to read file: open C:\Users\C00502~1\AppData\Local\Temp\tempfile-*.txt: The filename, directory name, or volume label syntax is incorrect.
--- FAIL: TestDownloadFile (0.00s)
    --- PASS: TestDownloadFile/DownloadFile_UrlIsNotFound_FailedToGetResponse (0.00s)
    --- PASS: TestDownloadFile/DownloadFile_ServiceIsUnavailable_FailedToReachTheService (0.00s)
    --- FAIL: TestDownloadFile/DownloadFile_FileDownlaoded_ (0.00s)

[XiShanYongYe-Chang]

/assign

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[mohamedawnallah]

@XiShanYongYe-Chang, I've updated the commit. I believe the issue is primarily with the naming of the file tempfile-*.txt, but I'm still not 100% sure. Could you please try it again and let me know how it goes? 🙏