def test_ast_expression_left_operator_right_arithmeticcomparison_datetime(
self):
past_date = ast.DatetimeExpression(context,
datetime.datetime(2016, 10, 15))
now = ast.DatetimeExpression(context, datetime.datetime.now())
self.assertExpressionTests('ge', past_date, now, False)
self.assertExpressionTests('gt', past_date, now, False)
self.assertExpressionTests('le', past_date, now, True)
self.assertExpressionTests('lt', past_date, now, True)
def test_ast_expression_datetime_attributes(self):
timestamp = datetime.datetime(2019,
9,
11,
20,
46,
57,
506406,
tzinfo=dateutil.tz.UTC)
symbol = ast.DatetimeExpression(context, timestamp)
attributes = {
'day': 11,
'hour': 20,
'microsecond': 506406,
'millisecond': decimal.Decimal('506.406'),
'minute': 46,
'month': 9,
'second': 57,
'weekday': timestamp.strftime('%A'),
'year': 2019,
'zone_name': 'UTC',
}
for attribute_name, value in attributes.items():
expression = ast.GetAttributeExpression(context, symbol,
attribute_name)
self.assertEqual(expression.evaluate(None), value,
"attribute {} failed".format(attribute_name))
{'test': {
'one': 1.0,
'two': 2.0
}})
# literal expressions which should evaluate to false
falseish = (ast.ArrayExpression(context, tuple()),
ast.BooleanExpression(context,
False), ast.FloatExpression(context, 0.0),
ast.NullExpression(context), ast.StringExpression(context, ''))
# literal expressions which should evaluate to true
trueish = (ast.ArrayExpression(context, tuple(
(ast.NullExpression(context), ))),
ast.ArrayExpression(context,
tuple((ast.FloatExpression(context, 1.0), ))),
ast.BooleanExpression(context, True),
ast.DatetimeExpression(context, datetime.datetime.now()),
ast.FloatExpression(context, float('-inf')),
ast.FloatExpression(context,
-1.0), ast.FloatExpression(context, 1.0),
ast.FloatExpression(context, float('inf')),
ast.StringExpression(context, 'non-empty'))
class UnknownType(object):
pass
class LiteralExpressionTests(unittest.TestCase):
context = engine.Context()
def assertLiteralTests(self, ExpressionClass, false_value, *true_values):