Try out coverage instead of pytest-cov

ci.sh

@@ -103,12 +103,15 @@ else
     INSTALLDIR=$(python -c "import os, trio; print(os.path.dirname(trio.__file__))")
     cp ../pyproject.toml $INSTALLDIR
 
-    if pytest -r a -p trio._tests.pytest_plugin --junitxml=../test-results.xml --run-slow ${INSTALLDIR} --cov="$INSTALLDIR" --cov-report=xml --cov-config=../.coveragerc --verbose; then
+    if coverage run --rcfile=../.coveragerc -m pytest -r a -p trio._tests.pytest_plugin --junitxml=../test-results.xml --run-slow ${INSTALLDIR} --verbose; then
         PASSED=true
     else
         PASSED=false
     fi
 
+    coverage report -m --rcfile ../.coveragerc --data-file ./.coverage*
+    coverage xml --rcfile ../.coveragerc --data-file ./.coverage*
+
     # Remove the LSP again; again we want to do this ASAP to avoid
     # accidentally breaking other stuff.
     if [ "$LSP" != "" ]; then

test-requirements.in

@@ -1,6 +1,6 @@
 # For tests
 pytest >= 5.0         # for faulthandler in core
-pytest-cov >= 2.6.0
+coverage >= 7.2.5
 async_generator >= 1.9
 pyright
 # ipython 7.x is the last major version supporting Python 3.7

test-requirements.txt

@@ -26,8 +26,8 @@ click==8.1.3
     # via
     #   black
     #   pip-tools
-coverage[toml]==7.2.7
-    # via pytest-cov
+coverage==7.2.7
+    # via -r test-requirements.in
 cryptography==39.0.2
     # via
     #   -r test-requirements.in
@@ -121,10 +121,6 @@ pyproject-hooks==1.0.0
 pyright==1.1.310
     # via -r test-requirements.in
 pytest==7.3.1
-    # via
-    #   -r test-requirements.in
-    #   pytest-cov
-pytest-cov==4.1.0
     # via -r test-requirements.in
 sniffio==1.3.0
     # via -r test-requirements.in
@@ -134,7 +130,6 @@ tomli==2.0.1
     # via
     #   black
     #   build
-    #   coverage
     #   mypy
     #   pylint
     #   pytest