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import pytest
from moto.dynamodb.exceptions import (
InvalidExpressionAttributeNameKey,
InvalidTokenException,
)
from moto.dynamodb.parsing.tokens import ExpressionTokenizer, Token
def test_expression_tokenizer_single_set_action():
set_action = "SET attrName = :attrValue"
token_list = ExpressionTokenizer.make_list(set_action)
assert token_list == [
Token(Token.ATTRIBUTE, "SET"),
Token(Token.WHITESPACE, " "),
Token(Token.ATTRIBUTE, "attrName"),
Token(Token.WHITESPACE, " "),
Token(Token.EQUAL_SIGN, "="),
Token(Token.WHITESPACE, " "),
Token(Token.ATTRIBUTE_VALUE, ":attrValue"),
]
def test_expression_tokenizer_single_set_action_leading_space():
set_action = "Set attrName = :attrValue"
token_list = ExpressionTokenizer.make_list(set_action)
assert token_list == [
Token(Token.ATTRIBUTE, "Set"),
Token(Token.WHITESPACE, " "),
Token(Token.ATTRIBUTE, "attrName"),
Token(Token.WHITESPACE, " "),
Token(Token.EQUAL_SIGN, "="),
Token(Token.WHITESPACE, " "),
Token(Token.ATTRIBUTE_VALUE, ":attrValue"),
]
def test_expression_tokenizer_single_set_action_attribute_name_leading_space():
set_action = "SET #a = :attrValue"
token_list = ExpressionTokenizer.make_list(set_action)
assert token_list == [
Token(Token.ATTRIBUTE, "SET"),
Token(Token.WHITESPACE, " "),
Token(Token.ATTRIBUTE_NAME, "#a"),
Token(Token.WHITESPACE, " "),
Token(Token.EQUAL_SIGN, "="),
Token(Token.WHITESPACE, " "),
Token(Token.ATTRIBUTE_VALUE, ":attrValue"),
]
def test_expression_tokenizer_single_set_action_trailing_space():
set_action = "SET attrName = :attrValue "
token_list = ExpressionTokenizer.make_list(set_action)
assert token_list == [
Token(Token.ATTRIBUTE, "SET"),
Token(Token.WHITESPACE, " "),
Token(Token.ATTRIBUTE, "attrName"),
Token(Token.WHITESPACE, " "),
Token(Token.EQUAL_SIGN, "="),
Token(Token.WHITESPACE, " "),
Token(Token.ATTRIBUTE_VALUE, ":attrValue"),
Token(Token.WHITESPACE, " "),
]
def test_expression_tokenizer_single_set_action_multi_spaces():
set_action = "SET attrName = :attrValue "
token_list = ExpressionTokenizer.make_list(set_action)
assert token_list == [
Token(Token.ATTRIBUTE, "SET"),
Token(Token.WHITESPACE, " "),
Token(Token.ATTRIBUTE, "attrName"),
Token(Token.WHITESPACE, " "),
Token(Token.EQUAL_SIGN, "="),
Token(Token.WHITESPACE, " "),
Token(Token.ATTRIBUTE_VALUE, ":attrValue"),
Token(Token.WHITESPACE, " "),
]
def test_expression_tokenizer_single_set_action_with_numbers_in_identifiers():
set_action = "SET attrName3 = :attr3Value"
token_list = ExpressionTokenizer.make_list(set_action)
assert token_list == [
Token(Token.ATTRIBUTE, "SET"),
Token(Token.WHITESPACE, " "),
Token(Token.ATTRIBUTE, "attrName3"),
Token(Token.WHITESPACE, " "),
Token(Token.EQUAL_SIGN, "="),
Token(Token.WHITESPACE, " "),
Token(Token.ATTRIBUTE_VALUE, ":attr3Value"),
]
def test_expression_tokenizer_single_set_action_with_underscore_in_identifier():
set_action = "SET attr_Name = :attr_Value"
token_list = ExpressionTokenizer.make_list(set_action)
assert token_list == [
Token(Token.ATTRIBUTE, "SET"),
Token(Token.WHITESPACE, " "),
Token(Token.ATTRIBUTE, "attr_Name"),
Token(Token.WHITESPACE, " "),
Token(Token.EQUAL_SIGN, "="),
Token(Token.WHITESPACE, " "),
Token(Token.ATTRIBUTE_VALUE, ":attr_Value"),
]
def test_expression_tokenizer_leading_underscore_in_attribute_name_expression():
"""Leading underscore is not allowed for an attribute name"""
set_action = "SET attrName = _idid"
with pytest.raises(InvalidTokenException) as te:
ExpressionTokenizer.make_list(set_action)
assert te.value.token == "_"
assert te.value.near == "= _idid"
def test_expression_tokenizer_leading_underscore_in_attribute_value_expression():
"""Leading underscore is allowed in an attribute value"""
set_action = "SET attrName = :_attrValue"
token_list = ExpressionTokenizer.make_list(set_action)
assert token_list == [
Token(Token.ATTRIBUTE, "SET"),
Token(Token.WHITESPACE, " "),
Token(Token.ATTRIBUTE, "attrName"),
Token(Token.WHITESPACE, " "),
Token(Token.EQUAL_SIGN, "="),
Token(Token.WHITESPACE, " "),
Token(Token.ATTRIBUTE_VALUE, ":_attrValue"),
]
def test_expression_tokenizer_single_set_action_nested_attribute():
set_action = "SET attrName.elem = :attrValue"
token_list = ExpressionTokenizer.make_list(set_action)
assert token_list == [
Token(Token.ATTRIBUTE, "SET"),
Token(Token.WHITESPACE, " "),
Token(Token.ATTRIBUTE, "attrName"),
Token(Token.DOT, "."),
Token(Token.ATTRIBUTE, "elem"),
Token(Token.WHITESPACE, " "),
Token(Token.EQUAL_SIGN, "="),
Token(Token.WHITESPACE, " "),
Token(Token.ATTRIBUTE_VALUE, ":attrValue"),
]
def test_expression_tokenizer_list_index_with_sub_attribute():
set_action = "SET itemmap.itemlist[1].foos=:Item"
token_list = ExpressionTokenizer.make_list(set_action)
assert token_list == [
Token(Token.ATTRIBUTE, "SET"),
Token(Token.WHITESPACE, " "),
Token(Token.ATTRIBUTE, "itemmap"),
Token(Token.DOT, "."),
Token(Token.ATTRIBUTE, "itemlist"),
Token(Token.OPEN_SQUARE_BRACKET, "["),
Token(Token.NUMBER, "1"),
Token(Token.CLOSE_SQUARE_BRACKET, "]"),
Token(Token.DOT, "."),
Token(Token.ATTRIBUTE, "foos"),
Token(Token.EQUAL_SIGN, "="),
Token(Token.ATTRIBUTE_VALUE, ":Item"),
]
def test_expression_tokenizer_list_index_surrounded_with_whitespace():
set_action = "SET itemlist[ 1 ]=:Item"
token_list = ExpressionTokenizer.make_list(set_action)
assert token_list == [
Token(Token.ATTRIBUTE, "SET"),
Token(Token.WHITESPACE, " "),
Token(Token.ATTRIBUTE, "itemlist"),
Token(Token.OPEN_SQUARE_BRACKET, "["),
Token(Token.WHITESPACE, " "),
Token(Token.NUMBER, "1"),
Token(Token.WHITESPACE, " "),
Token(Token.CLOSE_SQUARE_BRACKET, "]"),
Token(Token.EQUAL_SIGN, "="),
Token(Token.ATTRIBUTE_VALUE, ":Item"),
]
def test_expression_tokenizer_single_set_action_attribute_name_invalid_key():
"""
ExpressionAttributeNames contains invalid key: Syntax error; key: "#va#l2"
"""
set_action = "SET #va#l2 = 3"
with pytest.raises(InvalidExpressionAttributeNameKey) as e:
ExpressionTokenizer.make_list(set_action)
assert e.value.key == "#va#l2"
def test_expression_tokenizer_single_set_action_attribute_name_invalid_key_double_hash():
"""
ExpressionAttributeNames contains invalid key: Syntax error; key: "#va#l"
"""
set_action = "SET #va#l = 3"
with pytest.raises(InvalidExpressionAttributeNameKey) as e:
ExpressionTokenizer.make_list(set_action)
assert e.value.key == "#va#l"
def test_expression_tokenizer_single_set_action_attribute_name_valid_key():
set_action = "SET attr=#val2"
token_list = ExpressionTokenizer.make_list(set_action)
assert token_list == [
Token(Token.ATTRIBUTE, "SET"),
Token(Token.WHITESPACE, " "),
Token(Token.ATTRIBUTE, "attr"),
Token(Token.EQUAL_SIGN, "="),
Token(Token.ATTRIBUTE_NAME, "#val2"),
]
def test_expression_tokenizer_single_set_action_attribute_name_leading_number():
set_action = "SET attr=#0"
token_list = ExpressionTokenizer.make_list(set_action)
assert token_list == [
Token(Token.ATTRIBUTE, "SET"),
Token(Token.WHITESPACE, " "),
Token(Token.ATTRIBUTE, "attr"),
Token(Token.EQUAL_SIGN, "="),
Token(Token.ATTRIBUTE_NAME, "#0"),
]
def test_expression_tokenizer_single_set_action_attribute_name_leading_underscore():
set_action = "SET attr=#_sth"
token_list = ExpressionTokenizer.make_list(set_action)
assert token_list == [
Token(Token.ATTRIBUTE, "SET"),
Token(Token.WHITESPACE, " "),
Token(Token.ATTRIBUTE, "attr"),
Token(Token.EQUAL_SIGN, "="),
Token(Token.ATTRIBUTE_NAME, "#_sth"),
]
def test_expression_tokenizer_just_a_pipe():
set_action = "|"
with pytest.raises(InvalidTokenException) as te:
ExpressionTokenizer.make_list(set_action)
assert te.value.token == "|"
assert te.value.near == "|"
def test_expression_tokenizer_just_a_pipe_with_leading_white_spaces():
set_action = " |"
with pytest.raises(InvalidTokenException) as te:
ExpressionTokenizer.make_list(set_action)
assert te.value.token == "|"
assert te.value.near == " |"
def test_expression_tokenizer_just_a_pipe_for_set_expression():
set_action = "SET|"
with pytest.raises(InvalidTokenException) as te:
ExpressionTokenizer.make_list(set_action)
assert te.value.token == "|"
assert te.value.near == "SET|"
def test_expression_tokenizer_just_an_attribute_and_a_pipe_for_set_expression():
set_action = "SET a|"
with pytest.raises(InvalidTokenException) as te:
ExpressionTokenizer.make_list(set_action)
assert te.value.token == "|"
assert te.value.near == "a|"
|
