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"""Test of functions available in silx.gui.utils module."""

__authors__ = ["T. Vincent"]
__license__ = "MIT"
__date__ = "01/08/2019"


from silx.gui import qt
from silx.gui.utils.testutils import TestCaseQt, SignalListener

from silx.gui.utils import blockSignals


class TestBlockSignals(TestCaseQt):
    """Test blockSignals context manager"""

    def _test(self, *objs):
        """Test for provided objects"""
        listener = SignalListener()
        for obj in objs:
            obj.objectNameChanged.connect(listener)
            obj.setObjectName("received")

        with blockSignals(*objs):
            for obj in objs:
                obj.setObjectName("silent")

        self.assertEqual(listener.arguments(), [("received",)] * len(objs))

    def testManyObjects(self):
        """Test blockSignals with 2 QObjects"""
        self._test(qt.QObject(), qt.QObject())

    def testOneObject(self):
        """Test blockSignals context manager with a single QObject"""
        self._test(qt.QObject())
