test: add microvm helper for printing console data

Add a property in microvm class for printing console data. If console is
disabled this will print an empty string.

Signed-off-by: Babis Chalios <[email protected]>

Author: bchalios

tests/framework/microvm.py

@@ -370,6 +370,13 @@ def log_data(self):
             return ""
         return self.log_file.read_text()
 
+    @property
+    def console_data(self):
+        """Return the output of microVM's console"""
+        if self.screen_log is None:
+            return ""
+        return Path(self.screen_log).read_text(encoding="utf-8")
+
     @property
     def state(self):
         """Get the InstanceInfo property and return the state field."""