Fix test for test_process_cache

Author: stijnh

test/test_util_functions.py

@@ -672,6 +672,12 @@ def verify2(answer, result_host, atol):
     assert v(1, 2, atol=3)
 
 
+class MockRunner:
+    simulation_mode = False
+
+    def get_device_info(self):
+        return Options(name="test_device")
+
 def test_process_cache():
     def assert_open_cachefile_is_correctly_parsed(cache):
         with open(cache, "r") as cachefile:
@@ -694,7 +700,7 @@ def assert_open_cachefile_is_correctly_parsed(cache):
         simulation_mode=False,
         objective="time",
     )
-    runner = Options(dev=Options(name="test_device"), simulation_mode=False)
+    runner = MockRunner()
 
     try:
         # call process_cache without pre-existing cache