Install/run pytest in the proper environment

Do not start a new shell!

Author: DimitriPapadopoulos

.github/workflows/ci.yaml

@@ -62,29 +62,32 @@ jobs:
             if [[ "${{ matrix.python-version }}" == "3.14" ]]; then
               python -m pip install -v \
                 --config-settings="setup-args=${MESON_SETUP_ARGS}" \
-                ".[test,test_extras,msgpack,google_crc32c,crc32c,zfpy]"
+                ".[test,test_extras,msgpack,google_crc32c,crc32c,zfpy]" \
+                pytest
             else
               python -m pip install -v \
                 --config-settings="setup-args=${MESON_SETUP_ARGS}" \
-                ".[test,test_extras,msgpack,google_crc32c,crc32c,pcodec,zfpy]"
+                ".[test,test_extras,msgpack,google_crc32c,crc32c,pcodec,zfpy]" \
+                pytest
             fi
           else
             # TODO: Remove this conditional when pcodec supports Python 3.14
             if [[ "${{ matrix.python-version }}" == "3.14" ]]; then
               python -m pip install -v \
-                ".[test,test_extras,msgpack,google_crc32c,crc32c,zfpy]"
+                ".[test,test_extras,msgpack,google_crc32c,crc32c,zfpy]" \
+                pytest
             else
               python -m pip install -v \
-                ".[test,test_extras,msgpack,google_crc32c,crc32c,pcodec,zfpy]"
+                ".[test,test_extras,msgpack,google_crc32c,crc32c,pcodec,zfpy]" \
+                pytest
             fi
           fi
 
       - name: List installed packages
         run: python -m pip list
 
       - name: Run tests
-        shell: "bash -l {0}"
-        run: pytest -v
+        run: python -m pytest -v
 
       - uses: codecov/codecov-action@v5
         with:
@@ -138,7 +141,7 @@ jobs:
         run: python -m pip list
 
       - name: Run checksum tests
-        run: pytest -v tests/test_checksum32.py
+        run: python -m pytest -v tests/test_checksum32.py
 
       - uses: codecov/codecov-action@v5
         with:
@@ -187,7 +190,7 @@ jobs:
         run: python -m pip list
 
       - name: Run Zarr integration tests
-        run: pytest tests/test_zarr3.py tests/test_zarr3_import.py
+        run: python -m pytest tests/test_zarr3.py tests/test_zarr3_import.py
 
       - uses: codecov/codecov-action@v5
         with: