test(verifier): replace sed calls with native Python code

[tiborsimko]

On macOS, sed -i -e creates backup files with -e suffix, causing test failures due to unexpected files in the test directory. This commit replaces sed commands with native Python file operations for better platform independence of tests.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 80.75%. Comparing base (625eb9d) to head (20588e8).
⚠️ Report is 23 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #157      +/-   ##
==========================================
- Coverage   80.80%   80.75%   -0.06%     
==========================================
  Files          12       12              
  Lines         719      717       -2     
==========================================
- Hits          581      579       -2     
  Misses        138      138              

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[michaelbuchar]

I get this failure when running tests:

=================================== FAILURES ===================================
_______________ test_get_file_locations_with_custom_https_server _______________

def test_get_file_locations_with_custom_https_server():
    """Test `get-file-locations --server` command for custom https server."""
    test_get_file_locations = CliRunner()
    test_result = test_get_file_locations.invoke(
        get_file_locations, ["--recid", 5500, "--server", "https://opendata-qa.cern.ch"]
    )

  assert test_result.exit_code == 0

E assert 1 == 0
E + where 1 = <Result SystemExit(1)>.exit_code

tests/test_cli_get_file_locations.py:141: AssertionError
=========================== short test summary info ============================
FAILED tests/test_cli_get_file_locations.py::test_get_file_locations_with_custom_https_server
======================== 1 failed, 82 passed in 40.27s =========================

[michaelbuchar]

Moreover, are you planning on solving the failing CI checks? I believe the failure I got referenced in the above comment may be related to that.

[tiborsimko]

I get this failure when running tests:

Yes, this is due to a temporary indexing trouble on the QA instance of the portal... It was working last week. Pablo is checking the QA instance. (And everything is OK also on the PROD and DEV instances.)