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import os
from io import BytesIO
import pytest
from azure.kusto.data._models import WellKnownDataSet, KustoResultRow, KustoResultColumn
from azure.kusto.data.aio.response import KustoStreamingResponseDataSet as AsyncKustoStreamingResponseDataSet
from azure.kusto.data.aio.streaming_response import JsonTokenReader as AsyncJsonTokenReader, StreamingDataSetEnumerator as AsyncProgressiveDataSetEnumerator
from azure.kusto.data.exceptions import KustoServiceError, KustoStreamingQueryError, KustoTokenParsingError, KustoUnsupportedApiError, KustoMultiApiError
from azure.kusto.data.response import KustoStreamingResponseDataSet
from azure.kusto.data.streaming_response import JsonTokenReader, StreamingDataSetEnumerator, FrameType, JsonTokenType
from tests.kusto_client_common import KustoClientTestsMixin
class MockAioFile:
def __init__(self, filename):
self.filename = filename
def __enter__(self):
self.file = open(self.filename, "rb")
return self
def __exit__(self, exc_type, exc_val, exc_tb):
self.file.close()
async def read(self, n=-1):
return self.file.read(n)
class AsyncBytesIO:
def __init__(self, string):
self.bytes_io = BytesIO(string)
async def read(self, n=-1):
return self.bytes_io.read(n)
class TestStreamingQuery(KustoClientTestsMixin):
"""Tests class for KustoClient API"""
@staticmethod
def open_json_file(file_name: str):
return open(os.path.join(os.path.dirname(__file__), "input", file_name), "rb")
@staticmethod
def open_async_json_file(file_name: str):
return MockAioFile(os.path.join(os.path.dirname(__file__), "input", file_name))
def test_sanity(self):
with self.open_json_file("deft.json") as f:
reader = StreamingDataSetEnumerator(JsonTokenReader(f))
for i in reader:
if i["FrameType"] == FrameType.DataTable and i["TableKind"] == WellKnownDataSet.PrimaryResult.value:
columns = [KustoResultColumn(column, index) for index, column in enumerate(i["Columns"])]
self._assert_sanity_query_primary_results(KustoResultRow(columns, r) for r in i["Rows"])
def test_alternative_order(self):
with self.open_json_file("alternative_order.json") as f:
reader = StreamingDataSetEnumerator(JsonTokenReader(f))
for i in reader:
if i["FrameType"] == FrameType.DataTable and i["TableKind"] == WellKnownDataSet.PrimaryResult.value:
columns = [KustoResultColumn(column, index) for index, column in enumerate(i["Columns"])]
self._assert_sanity_query_primary_results(KustoResultRow(columns, r) for r in i["Rows"])
def test_progressive_unsupported(self):
with self.open_json_file("progressive_result.json") as f:
reader = StreamingDataSetEnumerator(JsonTokenReader(f))
with pytest.raises(KustoUnsupportedApiError):
for _ in reader:
pass
with self.open_json_file("deft_with_progressive_result.json") as f:
reader = StreamingDataSetEnumerator(JsonTokenReader(f))
with pytest.raises(KustoUnsupportedApiError):
for _ in reader:
pass
def test_dynamic(self):
with self.open_json_file("dynamic.json") as f:
reader = StreamingDataSetEnumerator(JsonTokenReader(f))
for i in reader:
if i["FrameType"] == FrameType.DataTable and i["TableKind"] == WellKnownDataSet.PrimaryResult.value:
row = next(i["Rows"])
self._assert_dynamic_response(row)
def test_sanity_kusto_streaming_response_dataset(self):
with self.open_json_file("deft.json") as f:
reader = StreamingDataSetEnumerator(JsonTokenReader(f))
response = KustoStreamingResponseDataSet(reader)
primary_tables = response.iter_primary_results()
# Before reading all of the tables these results won't be available
with pytest.raises(KustoStreamingQueryError):
errors_count = response.errors_count
with pytest.raises(KustoStreamingQueryError):
exceptions = response.get_exceptions()
first_table = next(primary_tables)
# Can't advance by default until current table is finished
with pytest.raises(KustoStreamingQueryError):
next(primary_tables)
self._assert_sanity_query_primary_results(first_table)
assert next(primary_tables, None) is None
assert response.errors_count == 0
assert response.get_exceptions() == []
assert response.finished
def test_exception_in_row(self):
with self.open_json_file("query_partial_results_defer_is_false.json") as f:
reader = StreamingDataSetEnumerator(JsonTokenReader(f))
response = KustoStreamingResponseDataSet(reader)
table = next(response.iter_primary_results())
with pytest.raises(KustoServiceError):
rows = [r for r in table]
@pytest.mark.asyncio
async def test_sanity_async(self):
with self.open_async_json_file("deft.json") as f:
reader = AsyncProgressiveDataSetEnumerator(AsyncJsonTokenReader(f))
async for i in reader:
if i["FrameType"] == FrameType.DataTable and i["TableKind"] == WellKnownDataSet.PrimaryResult.value:
columns = [KustoResultColumn(column, index) for index, column in enumerate(i["Columns"])]
rows = [KustoResultRow(columns, r) async for r in i["Rows"]]
self._assert_sanity_query_primary_results(rows)
@pytest.mark.asyncio
async def test_alternative_order_async(self):
with self.open_async_json_file("alternative_order.json") as f:
reader = AsyncProgressiveDataSetEnumerator(AsyncJsonTokenReader(f))
async for i in reader:
if i["FrameType"] == FrameType.DataTable and i["TableKind"] == WellKnownDataSet.PrimaryResult.value:
columns = [KustoResultColumn(column, index) for index, column in enumerate(i["Columns"])]
rows = [KustoResultRow(columns, r) async for r in i["Rows"]]
self._assert_sanity_query_primary_results(rows)
@pytest.mark.asyncio
async def test_progressive_unsupported_async(self):
with self.open_async_json_file("progressive_result.json") as f:
reader = AsyncProgressiveDataSetEnumerator(AsyncJsonTokenReader(f))
with pytest.raises(KustoUnsupportedApiError):
async for _ in reader:
pass
with self.open_async_json_file("deft_with_progressive_result.json") as f:
reader = AsyncProgressiveDataSetEnumerator(AsyncJsonTokenReader(f))
with pytest.raises(KustoUnsupportedApiError):
async for _ in reader:
pass
@pytest.mark.asyncio
async def test_dynamic_async(self):
with self.open_async_json_file("dynamic.json") as f:
reader = AsyncProgressiveDataSetEnumerator(AsyncJsonTokenReader(f))
async for i in reader:
if i["FrameType"] == FrameType.DataTable and i["TableKind"] == WellKnownDataSet.PrimaryResult.value:
row = await i["Rows"].__anext__()
self._assert_dynamic_response(row)
@pytest.mark.asyncio
async def test_sanity_kusto_streaming_response_dataset_async(self):
with self.open_async_json_file("deft.json") as f:
reader = AsyncProgressiveDataSetEnumerator(AsyncJsonTokenReader(f))
response = AsyncKustoStreamingResponseDataSet(reader)
primary_tables = response.iter_primary_results()
# Before reading all of the tables these results won't be available
with pytest.raises(KustoStreamingQueryError):
errors_count = response.errors_count
with pytest.raises(KustoStreamingQueryError):
exceptions = response.get_exceptions()
first_table = await primary_tables.__anext__()
# Can't advance by default until current table is finished
with pytest.raises(KustoStreamingQueryError):
await primary_tables.__anext__()
self._assert_sanity_query_primary_results([x async for x in first_table])
with pytest.raises(StopAsyncIteration):
await primary_tables.__anext__()
assert response.errors_count == 0
assert response.get_exceptions() == []
assert response.finished
@pytest.mark.asyncio
async def test_exception_in_row_async(self):
with self.open_async_json_file("query_partial_results_defer_is_false.json") as f:
reader = AsyncProgressiveDataSetEnumerator(AsyncJsonTokenReader(f))
response = AsyncKustoStreamingResponseDataSet(reader)
table = await response.iter_primary_results().__anext__()
with pytest.raises(KustoMultiApiError):
rows = [r async for r in table]
class TestJsonTokenReader:
def get_reader(self, data) -> JsonTokenReader:
return JsonTokenReader(BytesIO(data.encode()))
def get_async_reader(self, data) -> AsyncJsonTokenReader:
return AsyncJsonTokenReader(AsyncBytesIO(data.encode()))
def test_reading_token(self):
reader = self.get_reader("{")
assert reader.read_next_token_or_throw().token_type == JsonTokenType.START_MAP
with pytest.raises(KustoTokenParsingError):
reader.read_next_token_or_throw()
def test_read_token_of_type(self):
reader = self.get_reader("{}")
assert reader.read_token_of_type(JsonTokenType.START_MAP).token_type == JsonTokenType.START_MAP
with pytest.raises(KustoTokenParsingError):
reader.read_token_of_type(JsonTokenType.START_MAP)
def test_types(self):
reader = self.get_reader('{"junk": [[[]]], "key": ["a",false,3.63]}')
assert reader.read_start_object().token_type == JsonTokenType.START_MAP
assert reader.skip_until_property_name("key").token_type == JsonTokenType.MAP_KEY
assert reader.read_start_array().token_type == JsonTokenType.START_ARRAY
assert reader.read_string() == "a"
assert reader.read_boolean() is False
assert reader.read_number() == 3.63
def test_skip(self):
reader = self.get_reader('{"junk": [[[]]], "key": "a", "junk2": {"key2": "aaaaa"}, "key2": "www"}')
assert reader.read_start_object().token_type == JsonTokenType.START_MAP
key = reader.skip_until_any_property_name("key", "junk2")
assert key.token_type == JsonTokenType.MAP_KEY
assert reader.read_string() == "a"
key2 = reader.skip_until_property_name_or_end_object("key2")
assert key2.token_type == JsonTokenType.MAP_KEY
assert key2.token_path == ""
assert reader.read_string() == "www"
assert reader.skip_until_property_name_or_end_object().token_type == JsonTokenType.END_MAP
@pytest.mark.asyncio
async def test_reading_token_async(self):
reader = self.get_async_reader("{")
assert (await reader.read_next_token_or_throw()).token_type == JsonTokenType.START_MAP
with pytest.raises(KustoTokenParsingError):
await reader.read_next_token_or_throw()
@pytest.mark.asyncio
async def test_read_token_of_type_async(self):
reader = self.get_async_reader("{}")
assert (await reader.read_token_of_type(JsonTokenType.START_MAP)).token_type == JsonTokenType.START_MAP
with pytest.raises(KustoTokenParsingError):
await reader.read_token_of_type(JsonTokenType.START_MAP)
@pytest.mark.asyncio
async def test_types_async(self):
reader = self.get_async_reader('{"junk": [[[]]], "key": ["a",false,3.63]}')
assert (await reader.read_start_object()).token_type == JsonTokenType.START_MAP
assert (await reader.skip_until_property_name("key")).token_type == JsonTokenType.MAP_KEY
assert (await reader.read_start_array()).token_type == JsonTokenType.START_ARRAY
assert (await reader.read_string()) == "a"
assert (await reader.read_boolean()) is False
assert (await reader.read_number()) == 3.63
@pytest.mark.asyncio
async def test_skip_async(self):
reader = self.get_async_reader('{"junk": [[[]]], "key": "a", "junk2": {"key2": "aaaaa"}, "key2": "www" }')
assert (await reader.read_start_object()).token_type == JsonTokenType.START_MAP
key = await reader.skip_until_any_property_name("key", "junk2")
assert key.token_type == JsonTokenType.MAP_KEY
assert (await reader.read_string()) == "a"
key2 = await reader.skip_until_property_name_or_end_object("key2")
assert key2.token_type == JsonTokenType.MAP_KEY
assert key2.token_path == ""
assert (await reader.read_string()) == "www"
assert (await reader.skip_until_property_name_or_end_object()).token_type == JsonTokenType.END_MAP
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