test suite fails with coverage 5.4

[Chedi]

Summary

The new version of coverage (5.4) has implemented a new behavior where :

The text report produced by coverage report now always outputs a TOTAL line, even if only one Python file is reported. This makes regex parsing of the output easier. Thanks, Judson Neer. This had been requested a number of times (issue 1086, issue 922, issue 732).

https://github.com/nedbat/coveragepy/releases/tag/coverage-5.4

this causes some test expecting empty lines at the end of the coverage report to fail

Expected vs actual result

expected: passing tests
results: failing tests with the following assert

assert all(not line.startswith('TOTAL ') for line in result.stdout.lines[-4:])

Reproducer

Versions

pytest-cov: 2.11.1
coverage: 5.4