def test_is_fail(self):
tree = EvalTree('2d20l1')
tree.evaluate()
self.assertTrue(tree.is_fail())
self.assertFalse(tree.is_critical())
tree = EvalTree('1d20 + 1d20')
tree.evaluate()
self.assertTrue(tree.is_fail())
self.assertTrue(tree.is_critical())
def populate(self, tree: EvalTree):
"""Display the result of a roll represented by the tree."""
try:
tree.evaluate()
text = tree.verbose_result()
color = 'black'
if tree.is_critical():
color = 'green'
elif tree.is_fail():
color = 'red'
self.setText(text)
self.setFont(self.defaultFont)
self.setStyleSheet('color: {}'.format(color))
except EvaluationError as e:
self.show_error(e)
