Missing data in HTML report table after upgrading to pytest-html 4.1.1 #849

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1. BeyondEvil commented on Nov 22, 2024

   

   BeyondEvil

   on Nov 22, 2024

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   Could you create a small reproducible example?

   Also, please dump any output in the browser console here.

   Thanks 🙏🏼

   👍React with 👍1Reacted by Ramya R
2. Ramya2801 commented on Nov 22, 2024

   

   Ramya2801

   on Nov 22, 2024

   Last edited by BeyondEvil

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   Example unit test:

   import pytest
   @pytest.mark.tags('html_report')
   def test_failing_example():
       assert 1 == 2`

   conftest.py

   import pytest
   
   @pytest.hookimpl(tryfirst=True)
   def pytest_html_results_table_header(cells):
      cells.insert(3, html.th("snapshot", class_="sortable", col="snapshot"))
   
   @pytest.hookimpl(tryfirst=True)
   def pytest_html_results_table_row(report, cells):
       #code
   
   @pytest.hookimpl(tryfirst=True, hookwrapper=True)
   def pytest_runtest_htmlreport(item,call):
       outcome = yield
       # code 

   Run command :

   python run.py —tags=html_report - with tags -issues with latest version4.1.1, But when i downgraded to 3.2.0 got html table table with data as expected.

   python run.py tests/test_pytest_html.py - without tags -no issues with both the versions

   **Got INTERNALERROR : **

   `INTERNALERROR> File ".nox/tests/lib/python3.10/site-packages/pytest_html/basereport.py", line 245, in pytest_runtest_logreport

   INTERNALERROR> self._process_report(each, dur)

   INTERNALERROR> File ".nox/tests/lib/python3.10/site-packages/pytest_html/basereport.py", line 283, in _process_report

   INTERNALERROR> self._hydrate_data(data, cells)

   INTERNALERROR> File ".nox/tests/lib/python3.10/site-packages/pytest_html/basereport.py", line 159, in _hydrate_data

   INTERNALERROR> if "sortable" in self._report.table_header[index]:

   INTERNALERROR> IndexError: list index out of range`

   I'm suspecting the way to invoking this pytest_html_results_table_header while run the tests with tags is changed in the latest version
3. BeyondEvil commented on Nov 22, 2024

   

   BeyondEvil

   on Nov 22, 2024

   Last edited by BeyondEvil

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   What is run.py?

   What happens if you run it with pytest?

   Where does the --tags flag come from?
4. Ramya2801 commented on Nov 25, 2024

   

   Ramya2801

   on Nov 25, 2024

   Last edited by Ramya2801

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   pytest

   I am experiencing the same behavior when I run with pytest as well...

   Pytest command :pytest --color=yes --tags=pytest_html

   --tags

   these tags were configured in another file

   def pytest_addoption(parser):
       parser.addoption("--tags", nargs="+", metavar="TAG", help="Tags to filter tests")
   
   def pytest_configure(config):
       # configured using config.getoption("--tags") 
   
   def pytest_collection_modifyitems(items, config):
       tags = config.option.tags
       if tags:
           selected_items = [item for item in items if any(tag in item.keywords for tag in tags)]
           items[:] = selected_items
   

   I'm suspecting this issue is with the pytest_html_results_table_header hook after upgrading to pytest-html 4.1.1. In version 3.2.0, this hook was called during pytest_sessionfinish, but it now appears to be called during pytest_sessionstart in the latest version. But the pytest_sessionstart itself is not invoked.

   Could you please suggest how to invoke pytest_sessionstart from my current setup, and also let me know if I can customize the HTML report header in any other way?
5. shrutinipane commented on Nov 26, 2024

   

   shrutinipane

   on Nov 26, 2024

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   I am also facing the same issue as pytest_html_results_table_header and pytest_html_report_title fixtures get called first instead of at the end of the session while generating report.
   The last stable version where the test report got generated successfully is pytest-html==3.2.0.
6. a-kleinf commented on Feb 26, 2026

   

   a-kleinf

   on Feb 26, 2026

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   I encountered the same issue - it appears that the file or folder name affects how the HTML file is rendered in the browser. If the file path contains special characters, such as “ä”, it seems to break the HTML file.

   (Observed with pytest-html versions 4.1.1 and 4.2.0.)