Add runtime tracking for type tracing executions and time overhead

Author: LuKrO2011

src/pynguin/testcase/execution.py

@@ -22,6 +22,7 @@
 import signal
 import sys
 import threading
+import time
 from abc import abstractmethod
 from pathlib import Path
 from queue import Empty, Queue
@@ -2090,7 +2091,12 @@ def execute(self, test_case: tc.TestCase) -> ExecutionResult:  # noqa: D102
             ):
                 # TODO(fk) Do we record wrong stuff, i.e., type checks from observers?
                 #  Make use of type errors?
+                start = time.time_ns()
                 self._delegate.execute(test_case)
+                stat.add_to_runtime_variable(
+                    RuntimeVariable.TypeTracingTime, time.time_ns() - start
+                )
+                stat.add_to_runtime_variable(RuntimeVariable.TypeTracingExecutions, 1)
         return result
 
 

src/pynguin/utils/statistics/runtimevariable.py

@@ -151,6 +151,12 @@ class RuntimeVariable(str, enum.Enum):
     # Number of executed test cases
     Executed = "Executed"
 
+    # Number of additional test case executions caused by type tracing
+    TypeTracingExecutions = "TypeTracingExecutions"
+
+    # Time overhead (ns) caused by type tracing executions
+    TypeTracingTime = "TypeTracingTime"
+
     # ========= Values collected at the end of the search =========
 
     # Total number of statements in the resulting test suite