Try to shorten tutorials

src/ophyd_async/sim/_motor.py

@@ -68,7 +68,6 @@ async def set(self, value: float):
         """
         Asynchronously move the motor to a new position.
         """
-        start = time.time()
         new_position = value
         # Make sure any existing move tasks are stopped
         await self.stop()
@@ -97,7 +96,6 @@ async def set(self, value: float):
                         name=self.name,
                         unit=units,
                     )
-        print("Move took", time.time() - start)
         if not self._set_success:
             raise RuntimeError("Motor was stopped")
 

src/ophyd_async/sim/_point_detector.py

@@ -78,8 +78,6 @@ async def _update_values(self, acquire_time: float):
 
     @AsyncStatus.wrap
     async def trigger(self):
-        start = time.time()
         for setter in self._value_signals.values():
             setter(0)
         await self._update_values(await self.acquire_time.get_value())
-        print("Trigger took", time.time() - start)

tests/test_tutorials.py

@@ -1,4 +1,5 @@
 import importlib
+import os
 import re
 import time
 from pathlib import Path
@@ -29,6 +30,9 @@ def expected_scan_output():
 
 @pytest.mark.parametrize("module", ["ophyd_async.sim", "ophyd_async.epics.demo"])
 def test_implementing_devices(module, capsys, expected_scan_output):
+    # We want the text output of the best effort callback, but the plotting takes
+    # too much time for CI, even if headless, so disable it
+    os.environ.pop("MPLBACKEND", None)
     with patch("bluesky.run_engine.autoawait_in_bluesky_event_loop") as autoawait:
         main = importlib.import_module(f"{module}.__main__")
         autoawait.assert_called_once_with()
@@ -37,7 +41,7 @@ def test_implementing_devices(module, capsys, expected_scan_output):
         RE(main.bps.mv(motor.velocity, 1000))
     start = time.monotonic()
     RE(main.bp.grid_scan([main.pdet], main.stage.x, 1, 2, 3, main.stage.y, 2, 3, 3))
-    assert time.monotonic() - start == pytest.approx(20.0, abs=1.0)
+    assert time.monotonic() - start == pytest.approx(2.5, abs=2.0)
     captured = capsys.readouterr()
     assert captured.err == ""
     assert SCAN_LINE.findall(captured.out) == expected_scan_output