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import unittest

from PySide2.QtWidgets import QTreeWidget, QTreeWidgetItem, QPushButton
from helper import UsesQApplication

class QTreeWidgetTest(UsesQApplication):

    # PYSIDE-73:
    #   There was a problem when adding items to a QTreeWidget
    #   when the Widget was being build on the method call instead
    #   of as a separate variable.
    #   The problem was there was not ownership transfer, so the
    #   QTreeWidget did not own the QWidget element
    def testSetItemWidget(self):

        treeWidget = QTreeWidget()
        treeWidget.setColumnCount(2)

        item = QTreeWidgetItem(['text of column 0', ''])
        treeWidget.insertTopLevelItem(0, item)
        # Adding QPushButton inside the method
        treeWidget.setItemWidget(item, 1,
            QPushButton('Push button on column 1'))

        # Getting the widget back
        w = treeWidget.itemWidget(treeWidget.itemAt(0,1), 1)
        self.assertIsInstance(w, QPushButton)

        p = QPushButton('New independent button')
        # Adding QPushButton object from variable
        treeWidget.setItemWidget(item, 0, p)
        w = treeWidget.itemWidget(treeWidget.itemAt(0,0), 0)
        self.assertIsInstance(w, QPushButton)

if __name__ == '__main__':
    unittest.main()