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test_parameters.py
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import datetime
from decimal import Decimal
from enum import Enum
from typing import Type
import pytest
import pytz
from databricks.sql.client import Connection
from databricks.sql.parameters import (
BigIntegerParameter,
BooleanParameter,
DateParameter,
DecimalParameter,
DoubleParameter,
FloatParameter,
IntegerParameter,
SmallIntParameter,
StringParameter,
TimestampNTZParameter,
TimestampParameter,
TinyIntParameter,
VoidParameter,
)
from databricks.sql.parameters.native import (
TDbsqlParameter,
TSparkParameterValue,
dbsql_parameter_from_primitive,
)
from databricks.sql.thrift_api.TCLIService import ttypes
from databricks.sql.thrift_api.TCLIService.ttypes import (
TOpenSessionResp,
TSessionHandle,
TSparkParameterValue,
)
class TestSessionHandleChecks(object):
@pytest.mark.parametrize(
"test_input,expected",
[
(
TOpenSessionResp(
serverProtocolVersion=ttypes.TProtocolVersion.SPARK_CLI_SERVICE_PROTOCOL_V7,
sessionHandle=TSessionHandle(1, None),
),
ttypes.TProtocolVersion.SPARK_CLI_SERVICE_PROTOCOL_V7,
),
# Ensure that protocol version inside sessionhandle takes precedence.
(
TOpenSessionResp(
serverProtocolVersion=ttypes.TProtocolVersion.SPARK_CLI_SERVICE_PROTOCOL_V7,
sessionHandle=TSessionHandle(
1, ttypes.TProtocolVersion.SPARK_CLI_SERVICE_PROTOCOL_V8
),
),
ttypes.TProtocolVersion.SPARK_CLI_SERVICE_PROTOCOL_V8,
),
],
)
def test_get_protocol_version_fallback_behavior(self, test_input, expected):
assert Connection.get_protocol_version(test_input) == expected
@pytest.mark.parametrize(
"test_input,expected",
[
(
None,
False,
),
(
ttypes.TProtocolVersion.SPARK_CLI_SERVICE_PROTOCOL_V7,
False,
),
(
ttypes.TProtocolVersion.SPARK_CLI_SERVICE_PROTOCOL_V8,
True,
),
],
)
def test_parameters_enabled(self, test_input, expected):
assert Connection.server_parameterized_queries_enabled(test_input) == expected
@pytest.mark.parametrize(
"value,expected",
(
(Decimal("10.00"), "DECIMAL(4,2)"),
(Decimal("123456789123456789.123456789123456789"), "DECIMAL(36,18)"),
(Decimal(".12345678912345678912345678912345678912"), "DECIMAL(38,38)"),
(Decimal("123456789.123456789"), "DECIMAL(18,9)"),
(Decimal("12345678912345678912345678912345678912"), "DECIMAL(38,0)"),
(Decimal("1234.56"), "DECIMAL(6,2)"),
),
)
def test_calculate_decimal_cast_string(value, expected):
p = DecimalParameter(value)
assert p._cast_expr() == expected
class Primitive(Enum):
"""These are the inferrable types. This Enum is used for parametrized tests."""
NONE = None
BOOL = True
INT = 50
BIGINT = 2147483648
STRING = "Hello"
DECIMAL = Decimal("1234.56")
DATE = datetime.date(2023, 9, 6)
TIMESTAMP = datetime.datetime(2023, 9, 6, 3, 14, 27, 843, tzinfo=pytz.UTC)
DOUBLE = 3.14
FLOAT = 3.15
SMALLINT = 51
class TestDbsqlParameter:
@pytest.mark.parametrize(
"_type, prim, expect_cast_expr",
(
(DecimalParameter, Primitive.DECIMAL, "DECIMAL(6,2)"),
(IntegerParameter, Primitive.INT, "INT"),
(StringParameter, Primitive.STRING, "STRING"),
(BigIntegerParameter, Primitive.BIGINT, "BIGINT"),
(BooleanParameter, Primitive.BOOL, "BOOLEAN"),
(DateParameter, Primitive.DATE, "DATE"),
(DoubleParameter, Primitive.DOUBLE, "DOUBLE"),
(FloatParameter, Primitive.FLOAT, "FLOAT"),
(VoidParameter, Primitive.NONE, "VOID"),
(SmallIntParameter, Primitive.INT, "SMALLINT"),
(TimestampParameter, Primitive.TIMESTAMP, "TIMESTAMP"),
(TimestampNTZParameter, Primitive.TIMESTAMP, "TIMESTAMP_NTZ"),
(TinyIntParameter, Primitive.INT, "TINYINT"),
),
)
def test_cast_expression(
self, _type: TDbsqlParameter, prim: Primitive, expect_cast_expr: str
):
p = _type(prim.value)
assert p._cast_expr() == expect_cast_expr
@pytest.mark.parametrize(
"t, prim",
(
(DecimalParameter, Primitive.DECIMAL),
(IntegerParameter, Primitive.INT),
(StringParameter, Primitive.STRING),
(BigIntegerParameter, Primitive.BIGINT),
(BooleanParameter, Primitive.BOOL),
(DateParameter, Primitive.DATE),
(DoubleParameter, Primitive.DOUBLE),
(FloatParameter, Primitive.FLOAT),
(VoidParameter, Primitive.NONE),
(SmallIntParameter, Primitive.INT),
(TimestampParameter, Primitive.TIMESTAMP),
(TimestampNTZParameter, Primitive.TIMESTAMP),
(TinyIntParameter, Primitive.INT),
),
)
def test_tspark_param_value(self, t: TDbsqlParameter, prim):
p: TDbsqlParameter = t(prim.value)
output = p._tspark_param_value()
if prim == Primitive.NONE:
assert output == None
else:
assert output == TSparkParameterValue(stringValue=str(prim.value))
def test_tspark_param_named(self):
p = dbsql_parameter_from_primitive(Primitive.INT.value, name="p")
tsp = p.as_tspark_param(named=True)
assert tsp.name == "p"
assert tsp.ordinal is False
def test_tspark_param_ordinal(self):
p = dbsql_parameter_from_primitive(Primitive.INT.value, name="p")
tsp = p.as_tspark_param(named=False)
assert tsp.name is None
assert tsp.ordinal is True
@pytest.mark.parametrize(
"_type, prim",
(
(DecimalParameter, Primitive.DECIMAL),
(IntegerParameter, Primitive.INT),
(StringParameter, Primitive.STRING),
(BigIntegerParameter, Primitive.BIGINT),
(BooleanParameter, Primitive.BOOL),
(DateParameter, Primitive.DATE),
(FloatParameter, Primitive.FLOAT),
(VoidParameter, Primitive.NONE),
(TimestampParameter, Primitive.TIMESTAMP),
),
)
def test_inference(self, _type: TDbsqlParameter, prim: Primitive):
"""This method only tests inferrable types.
Not tested are TinyIntParameter, SmallIntParameter DoubleParameter and TimestampNTZParameter
"""
inferred_type = dbsql_parameter_from_primitive(prim.value)
assert isinstance(inferred_type, _type)