def test_expression_resolves_condition(self):
expression = Expression('(a = 1)')
conditions = expression.to_conditions()
self.assertEqual('a', conditions.conditions[0].key)
self.assertEqual('=', conditions.conditions[0].operator)
self.assertEqual('1', conditions.conditions[0].value)
def test_expression_resolves_nested_compound_condition(self):
expression = Expression('(a = 1 or (b = 2 and c = 3))')
conditions = expression.to_conditions()
self.assertEqual('or', conditions.conditions[1].value)
self.assertEqual('c', conditions.conditions[2][2].key)
self.assertEqual('=', conditions.conditions[2][2].operator)
self.assertEqual('3', conditions.conditions[2][2].value)
def test_expression_resolves_compound_condition(self):
expression = Expression('(a = 1 and b = 2)')
conditions = expression.to_conditions()
self.assertEqual('and', conditions.conditions[1].value)
self.assertEqual('b', conditions.conditions[2].key)
self.assertEqual('=', conditions.conditions[2].operator)
self.assertEqual('2', conditions.conditions[2].value)
def handle(self, command):
expression = Expression(command.filter)
conditions = expression.to_conditions()
return self.todo_repository.fetch_todos(conditions)
def test_expression_raises_badly_terminated_error(self):
expression = Expression('(a = 1 or (b = 2 and c = 3)) or')
with self.assertRaises(ExpressionBadlyTerminated):
expression.to_conditions()
def test_expression_raises_badly_formatted_error(self):
expression = Expression('(a = 1 and or (b = 2 and c = 3))')
with self.assertRaises(ExpressionBadlyFormatted):
expression.to_conditions()