Add function to determine if isolated

Author: ayjayt

choreographer/browser_async.py

@@ -110,6 +110,10 @@ def __init__(
             parser=parser,
         )
 
+    def is_isolated(self) -> bool:
+        """Return if process is isolated."""
+        return self._browser_impl.is_isolated()
+
     async def open(self) -> None:
         """Open the browser."""
         _logger.info("Opening browser.")

choreographer/browsers/_interface_type.py

@@ -25,3 +25,4 @@ def get_popen_args(self) -> Mapping[str, Any]: ...
     def get_cli(self) -> Sequence[str]: ...
     def get_env(self) -> MutableMapping[str, str]: ...
     def clean(self) -> None: ...
+    def is_isolated(self) -> bool: ...

choreographer/browsers/chromium.py

@@ -148,12 +148,24 @@ def __init__(
         if not isinstance(channel, Pipe):
             raise NotImplementedError("Websocket style channels not implemented yet.")
 
+        self._is_isolated = "snap" in str(self.path)
+
         self.tmp_dir = TmpDirectory(
             path=self._tmp_dir_path,
-            sneak="snap" in str(self.path),
+            sneak=self._is_isolated,
         )
         _logger.info(f"Temporary directory at: {self.tmp_dir.path}")
 
+    def is_isolated(self) -> bool:
+        """
+        Return if /tmp directory is isolated by OS.
+
+        Returns:
+            bool indicating if /tmp is isolated.
+
+        """
+        return self._is_isolated
+
     def get_popen_args(self) -> Mapping[str, Any]:
         """Return the args needed to runc chromium with `subprocess.Popen()`."""
         args = {}