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import pytest
from moto.dynamodb.exceptions import DynamodbException
from moto.dynamodb.parsing.key_condition_expression import parse_expression
class TestHashKey:
schema = [{"AttributeName": "job_id", "KeyType": "HASH"}]
@pytest.mark.parametrize("expression", ["job_id = :id", "job_id = :id "])
def test_hash_key_only(self, expression):
eav = {":id": {"S": "asdasdasd"}}
desired_hash_key, comparison, range_values, _ = parse_expression(
expression_attribute_values=eav,
key_condition_expression=expression,
schema=self.schema,
expression_attribute_names={},
)
assert desired_hash_key == eav[":id"]
assert comparison is None
assert range_values == []
def test_unknown_hash_key(self):
kce = "wrongName = :id"
eav = {":id": "pk"}
with pytest.raises(DynamodbException) as exc:
parse_expression(
expression_attribute_values=eav,
key_condition_expression=kce,
schema=self.schema,
expression_attribute_names={},
)
assert exc.value.message == "Query condition missed key schema element: job_id"
class TestHashAndRangeKey:
schema = [
{"AttributeName": "job_id", "KeyType": "HASH"},
{"AttributeName": "start_date", "KeyType": "RANGE"},
]
def test_unknown_hash_key(self):
kce = "wrongName = :id AND start_date = :sk"
eav = {":id": "pk", ":sk": "sk"}
with pytest.raises(DynamodbException) as exc:
parse_expression(
expression_attribute_values=eav,
key_condition_expression=kce,
schema=self.schema,
expression_attribute_names={},
)
assert exc.value.message == "Query condition missed key schema element: job_id"
@pytest.mark.parametrize(
"expr",
[
"job_id = :id AND wrongName = :sk",
"job_id = :id AND begins_with ( wrongName , :sk )",
"job_id = :id AND wrongName BETWEEN :sk and :sk2",
],
)
def test_unknown_range_key(self, expr):
eav = {":id": "pk", ":sk": "sk", ":sk2": "sk"}
with pytest.raises(DynamodbException) as exc:
parse_expression(
expression_attribute_values=eav,
key_condition_expression=expr,
schema=self.schema,
expression_attribute_names={},
)
assert (
exc.value.message == "Query condition missed key schema element: start_date"
)
@pytest.mark.parametrize(
"expr",
[
"job_id = :id AND begins_with(start_date,:sk)",
"job_id = :id AND begins_with(start_date, :sk)",
"job_id = :id AND begins_with( start_date,:sk)",
"job_id = :id AND begins_with( start_date, :sk)",
"job_id = :id AND begins_with ( start_date, :sk ) ",
],
)
def test_begin_with(self, expr):
eav = {":id": "pk", ":sk": "19"}
desired_hash_key, comparison, range_values, _ = parse_expression(
expression_attribute_values=eav,
key_condition_expression=expr,
schema=self.schema,
expression_attribute_names={},
)
assert desired_hash_key == "pk"
assert comparison == "BEGINS_WITH"
assert range_values == ["19"]
@pytest.mark.parametrize("fn", ["Begins_with", "Begins_With", "BEGINS_WITH"])
def test_begin_with__wrong_case(self, fn):
eav = {":id": "pk", ":sk": "19"}
with pytest.raises(DynamodbException) as exc:
parse_expression(
expression_attribute_values=eav,
key_condition_expression=f"job_id = :id AND {fn}(start_date,:sk)",
schema=self.schema,
expression_attribute_names={},
)
assert (
exc.value.message
== f"Invalid KeyConditionExpression: Invalid function name; function: {fn}"
)
@pytest.mark.parametrize(
"expr",
[
"job_id = :id and start_date BETWEEN :sk1 AND :sk2",
"job_id = :id and start_date BETWEEN :sk1 and :sk2",
"job_id = :id and start_date between :sk1 and :sk2 ",
],
)
def test_in_between(self, expr):
eav = {":id": "pk", ":sk1": "19", ":sk2": "21"}
desired_hash_key, comparison, range_values, _ = parse_expression(
expression_attribute_values=eav,
key_condition_expression=expr,
schema=self.schema,
expression_attribute_names={},
)
assert desired_hash_key == "pk"
assert comparison == "BETWEEN"
assert range_values == ["19", "21"]
@pytest.mark.parametrize("operator", [" < ", " <=", "= ", ">", ">="])
def test_numeric_comparisons(self, operator):
eav = {":id": "pk", ":sk": "19"}
expr = f"job_id = :id and start_date{operator}:sk"
desired_hash_key, comparison, range_values, _ = parse_expression(
expression_attribute_values=eav,
key_condition_expression=expr,
schema=self.schema,
expression_attribute_names={},
)
assert desired_hash_key == "pk"
assert comparison == operator.strip()
assert range_values == ["19"]
@pytest.mark.parametrize(
"expr",
[
"start_date >= :sk and job_id = :id",
"start_date>:sk and job_id=:id",
"start_date=:sk and job_id = :id",
"begins_with(start_date,:sk) and job_id = :id",
],
)
def test_reverse_keys(self, expr):
eav = {":id": "pk", ":sk1": "19", ":sk2": "21"}
desired_hash_key, comparison, range_values, _ = parse_expression(
expression_attribute_values=eav,
key_condition_expression=expr,
schema=self.schema,
expression_attribute_names={},
)
assert desired_hash_key == "pk"
@pytest.mark.parametrize(
"expr",
[
"(job_id = :id) and start_date = :sk",
"job_id = :id and (start_date = :sk)",
"(job_id = :id) and (start_date = :sk)",
],
)
def test_brackets(self, expr):
desired_hash_key, comparison, range_values, _ = parse_expression(
expression_attribute_values={":id": "pk", ":sk": "19"},
key_condition_expression=expr,
schema=self.schema,
expression_attribute_names={},
)
assert desired_hash_key == "pk"
class TestNamesAndValues:
schema = [{"AttributeName": "job_id", "KeyType": "HASH"}]
def test_names_and_values(self):
kce = ":j = :id"
ean = {":j": "job_id"}
eav = {":id": {"S": "asdasdasd"}}
desired_hash_key, comparison, range_values, _ = parse_expression(
expression_attribute_values=eav,
key_condition_expression=kce,
schema=self.schema,
expression_attribute_names=ean,
)
assert desired_hash_key == eav[":id"]
assert comparison is None
assert range_values == []
def test_expression_attribute_names_found():
kce = ":j = :id"
ean = {":j": "job_id"}
eav = {":id": {"S": "asdasdasd"}}
desired_hash_key, comparison, range_values, expression_attribute_names_used = (
parse_expression(
expression_attribute_values=eav,
key_condition_expression=kce,
schema=[{"AttributeName": "job_id", "KeyType": "HASH"}],
expression_attribute_names=ean,
)
)
assert expression_attribute_names_used == [":j"]
|
