tici: improve power save test (#32674)

* tici: improve power save test

* Update system/hardware/tici/tests/test_hardware.py
old-commit-hash: da1cb2276b

system/hardware/tici/tests/test_hardware.py

@@ -11,12 +11,16 @@ HARDWARE = Tici()
 class TestHardware:
 
   def test_power_save_time(self):
-    ts = []
+    ts = {True: [], False: []}
     for _ in range(5):
       for on in (True, False):
         st = time.monotonic()
         HARDWARE.set_power_save(on)
-        ts.append(time.monotonic() - st)
+        ts[on].append(time.monotonic() - st)
 
-    assert 0.1 < np.mean(ts) < 0.25
-    assert max(ts) < 0.3
+    # disabling power save is the main time-critical one
+    assert 0.1 < np.mean(ts[False]) < 0.15
+    assert max(ts[False]) < 0.2
+
+    assert 0.1 < np.mean(ts[True]) < 0.35
+    assert max(ts[True]) < 0.4