Remove date from testData file

[piponazo]

In #2053 a new test was added and since then I was obtaining failures when running the tests locally.

When running the tests locally, the DateTimeOriginal key is printed like this:

Exif.Photo.DateTimeOriginal 2022:01:04 10:41:01  2022:01:04 10:41:01

While the expectation was:

Exif.Photo.DateTimeOriginal 2022:01:04 09:41:01 2022:01:04 09:41:01

It seems that such time is printed in local time. Since that field is not relevant for the test added in #2053, I think we can just remove it.

[codecov]

Codecov Report

Merging #2079 (b91924e) into main (4ae42b1) will decrease coverage by 0.21%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #2079      +/-   ##
==========================================
- Coverage   62.08%   61.87%   -0.22%     
==========================================
  Files          96       96              
  Lines       19153    19059      -94     
  Branches     9798     9782      -16     
==========================================
- Hits        11891    11792      -99     
- Misses       4967     4984      +17     
+ Partials     2295     2283      -12     

Impacted Files	Coverage Δ
src/safe_op.hpp	69.23% <0.00%> (-27.65%)	⬇️
include/exiv2/slice.hpp	69.64% <0.00%> (-21.89%)	⬇️
include/exiv2/error.hpp	60.71% <0.00%> (-4.81%)	⬇️
src/utils.cpp	38.46% <0.00%> (-1.93%)	⬇️
include/exiv2/value.hpp	82.68% <0.00%> (-0.56%)	⬇️
src/enforce.hpp	75.00% <0.00%> (+2.77%)	⬆️
src/getopt.cpp	67.30% <0.00%> (+5.76%)	⬆️
include/exiv2/metadatum.hpp	88.88% <0.00%> (+16.16%)	⬆️

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[postscript-dev]

@piponazo<https://github.com/piponazo>: I am happy to review this but it will have to wait until the weekend.

[piponazo]

@piponazohttps://github.com/piponazo: I am happy to review this but it will have to wait until the weekend.

Sure, whenever you have some spare time 😉

[postscript-dev]

@piponazo: When I added #2053, I included every tag that was in the XMP IPTC Metadata Standard 2021.1 - which doesn't include Exif.Photo.DateTimeOriginal.

The problems in this issue (and in #2083) is that the tags are passing through conversion functions which add or update some of the tags. The error is caused by one of the conversion functions using the local time.

This conversion problem has come up before though in #367 (the comments start here). In that issue, the solution was to add:

env = {
    'TZ': 'UTC'
}

to the Python test (see tests/bash_tests/test_issue_1054.py).

As it looks as though the same problem could reoccur with other files in the future, perhaps it is better to set the default test suite environment to UTC?

[piponazo]

@postscript-dev yes, I think I will close this PR because we definitely need to take a deeper look to the root issue.

[postscript-dev]

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