ci: capture coverage before pytest imports

Signed-off-by: Rui Luo <ruluo@nvidia.com>

Author: rluo8

.coveragerc

@@ -9,6 +9,7 @@ source =
 [run]
 plugins = Cython.Coverage
 core = ctrace
+dynamic_context = test_function
 branch = False
 relative_files = True
 # Cython.Coverage cannot build a FileReporter for .pxd/.pxi (not standalone

.github/workflows/coverage.yml

@@ -173,19 +173,26 @@ jobs:
         continue-on-error: true
         run: |
           cd $INSTALL_ROOT
-          $REPO_ROOT/.venv/bin/pytest -v --cov=./cuda --cov-append --cov-context=test --cov-config=$REPO_ROOT/.coveragerc $REPO_ROOT/cuda_pathfinder/tests
+          "$REPO_ROOT/.venv/bin/python" -m coverage run \
+            --append --source=./cuda --rcfile="$REPO_ROOT/.coveragerc" \
+            -m pytest -p no:pytest_cov -v "$REPO_ROOT/cuda_pathfinder/tests"
 
       - name: Run cuda.bindings tests
         continue-on-error: true
         run: |
           cd $INSTALL_ROOT
-          $REPO_ROOT/.venv/bin/pytest -v --cov=./cuda --cov-append --cov-context=test --cov-config=$REPO_ROOT/.coveragerc $REPO_ROOT/cuda_bindings_13/tests
+          "$REPO_ROOT/.venv/bin/python" -m coverage run \
+            --append --source=./cuda --rcfile="$REPO_ROOT/.coveragerc" \
+            -m pytest -p no:pytest_cov -v "$REPO_ROOT/cuda_bindings_13/tests"
 
       - name: Run cuda.core tests
         continue-on-error: true
         run: |
           cd $INSTALL_ROOT
-          $REPO_ROOT/.venv/bin/pytest -v --cov=./cuda --cov-append --cov-context=test --cov-config=$REPO_ROOT/.coveragerc $REPO_ROOT/cuda_core/tests
+          # Start tracing before pytest imports warning categories from helpers.
+          "$REPO_ROOT/.venv/bin/python" -m coverage run \
+            --append --source=./cuda --rcfile="$REPO_ROOT/.coveragerc" \
+            -m pytest -p no:pytest_cov -v "$REPO_ROOT/cuda_core/tests"
 
       - name: Copy Linux coverage file to workspace
         run: |
@@ -427,27 +434,28 @@ jobs:
         continue-on-error: true
         run: |
           cd "${{ steps.install-root.outputs.INSTALL_ROOT }}"
-          "$GITHUB_WORKSPACE/.venv/Scripts/pytest" -v --cov=./cuda --cov-append --cov-context=test --cov-config="$GITHUB_WORKSPACE/.coveragerc" "$GITHUB_WORKSPACE/cuda_pathfinder/tests"
+          "$GITHUB_WORKSPACE/.venv/Scripts/python" -m coverage run \
+            --append --source=./cuda --rcfile="$GITHUB_WORKSPACE/.coveragerc" \
+            -m pytest -p no:pytest_cov -v "$GITHUB_WORKSPACE/cuda_pathfinder/tests"
 
       # The patched interpreter provides the larger stack on the main thread
       # and in child interpreters. Deferred cleanup needs pytest on the main thread.
       - name: Run cuda.bindings tests
         continue-on-error: true
         run: |
           cd "${{ steps.install-root.outputs.INSTALL_ROOT }}"
-          "$GITHUB_WORKSPACE/.venv/Scripts/python" -m pytest \
-            -v --cov=./cuda --cov-append --cov-context=test \
-            --cov-config="$GITHUB_WORKSPACE/.coveragerc" \
-            "$GITHUB_WORKSPACE/cuda_bindings_13/tests"
+          "$GITHUB_WORKSPACE/.venv/Scripts/python" -m coverage run \
+            --append --source=./cuda --rcfile="$GITHUB_WORKSPACE/.coveragerc" \
+            -m pytest -p no:pytest_cov -v "$GITHUB_WORKSPACE/cuda_bindings_13/tests"
 
       - name: Run cuda.core tests
         continue-on-error: true
         run: |
           cd "${{ steps.install-root.outputs.INSTALL_ROOT }}"
-          "$GITHUB_WORKSPACE/.venv/Scripts/python" -m pytest \
-            -v --cov=./cuda --cov-append --cov-context=test \
-            --cov-config="$GITHUB_WORKSPACE/.coveragerc" \
-            "$GITHUB_WORKSPACE/cuda_core/tests"
+          # Start tracing before pytest imports warning categories from helpers.
+          "$GITHUB_WORKSPACE/.venv/Scripts/python" -m coverage run \
+            --append --source=./cuda --rcfile="$GITHUB_WORKSPACE/.coveragerc" \
+            -m pytest -p no:pytest_cov -v "$GITHUB_WORKSPACE/cuda_core/tests"
 
       - name: Copy Windows coverage file to workspace
         run: |