Henrik Lemke
5b6f2d2838
- shared eco.widgets.live_values: writes on a background thread with a status dot (and working Stop during a move), reads off the GUI/kernel thread, monitored items subscribed (trusted only once an event arrives, demoted if a poll sees an unannounced change), tweak step from the IOC's TWV for motor/SmarAct records. - assembly_browser Set no longer falls back to mvr (a relative move with an absolute value); runs off the kernel thread. - fix process aborts: IOC finder worker destroyed while running, simple gadget polling after close; tweak panel message timer guarded.
39 lines
1.1 KiB
Python
39 lines
1.1 KiB
Python
"""A simple Qt gadget deleted while its poll thread keeps reading must stop
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quietly -- a reading rendered into the deleted widget used to raise inside a
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Qt slot, which aborts the process under PyQt."""
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import time
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import pytest
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pytest.importorskip("qtpy")
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from qtpy import QtCore, QtWidgets
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from eco.widgets import indicator_widgets_qt_simple as gadgets
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class Item:
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name = "x"
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reads = 0
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def get_current_value(self):
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Item.reads += 1
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return 1.0
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def test_a_deleted_gadget_stops_reading_instead_of_aborting():
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app = QtWidgets.QApplication.instance() or QtWidgets.QApplication([])
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box = gadgets.bar_gauge(Item(), poll_interval=0.05)
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for _ in range(10):
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app.processEvents()
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time.sleep(0.02)
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box.deleteLater()
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QtCore.QCoreApplication.sendPostedEvents(None, QtCore.QEvent.DeferredDelete)
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for _ in range(20): # readings arriving after the deletion
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app.processEvents()
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time.sleep(0.02)
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reads = Item.reads
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time.sleep(0.3)
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assert Item.reads <= reads + 1 # the poll thread stopped
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