Set venv to the one we're using for pymapdl

Author: valallansys

tests/test_inprocess.py

@@ -41,6 +41,13 @@ def __init__(self, wdir: str, version: float, exec_path: str | None = None) -> N
         self._exec_path: str | None = exec_path
         self._output: str | None = None
 
+        # Detecting the venv
+        if sys.prefix == sys.base_prefix:
+            pytest.warns(
+                "Running from global python interpreter is not recommended."
+            )
+        os.environ["MAPDL_PYTHON_ENV"] = sys.prefix
+
     @property
     def exec_path(self) -> str:
         if self._exec_path is None: