Patch time.time in workgroup lifecycle test

Signed-off-by: Samuel Monson <[email protected]>

Author: sjmonson

tests/unit/scheduler/test_worker_group.py

@@ -9,6 +9,7 @@
 from multiprocessing.process import BaseProcess
 from multiprocessing.synchronize import Barrier, Event
 from typing import Any, Generic, Literal
+from unittest.mock import patch
 
 import pytest
 from pydantic import Field
@@ -48,6 +49,23 @@ class MockRequestTimings(MeasuredRequestTimings):
     timings_type: Literal["mock"] = Field(default="mock")
 
 
+class MockTime:
+    """Deterministic time mock for testing."""
+
+    def __init__(self, start_time: float = 1000.0):
+        self.current_time = start_time
+        self.increment = 0.1
+
+    def time(self) -> float:
+        """Return current mock time and increment for next call."""
+        current = self.current_time
+        self.current_time += self.increment
+        return current
+
+
+mock_time = MockTime()
+
+
 class MockBackend(BackendInterface):
     """Mock backend for testing worker group functionality."""
 
@@ -67,6 +85,7 @@ def processes_limit(self) -> int | None:
     def requests_limit(self) -> int | None:
         return self._requests_limit
 
+    @property
     def info(self) -> dict[str, Any]:
         return {"type": "mock"}
 
@@ -249,6 +268,7 @@ def test_invalid_initialization_missing(self):
     @pytest.mark.smoke
     @async_timeout(10)
     @pytest.mark.asyncio
+    @patch.object(time, "time", mock_time.time)
     async def test_lifecycle(self, valid_instances: tuple[WorkerProcessGroup, dict]):  # noqa: C901, PLR0912
         """Test the lifecycle methods of WorkerProcessGroup."""
         instance, constructor_args = valid_instances