File size: 3,062 Bytes
1856027 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 | # Copyright 2020 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""System tests for Jupyter/IPython connector."""
import re
import pytest
import psutil
IPython = pytest.importorskip("IPython")
io = pytest.importorskip("IPython.utils.io")
pandas = pytest.importorskip("pandas")
tools = pytest.importorskip("IPython.testing.tools")
interactiveshell = pytest.importorskip("IPython.terminal.interactiveshell")
@pytest.fixture(scope="session")
def ipython():
config = tools.default_config()
config.TerminalInteractiveShell.simple_prompt = True
shell = interactiveshell.TerminalInteractiveShell.instance(config=config)
return shell
@pytest.fixture()
def ipython_interactive(ipython):
"""Activate IPython's builtin hooks
for the duration of the test scope.
"""
with ipython.builtin_trap:
yield ipython
def test_bigquery_magic(ipython_interactive):
ip = IPython.get_ipython()
current_process = psutil.Process()
conn_count_start = len(current_process.connections())
# Deprecated, but should still work in google-cloud-bigquery 3.x.
with pytest.warns(FutureWarning, match="bigquery_magics"):
ip.extension_manager.load_extension("google.cloud.bigquery")
sql = """
SELECT
CONCAT(
'https://stackoverflow.com/questions/',
CAST(id as STRING)) as url,
view_count
FROM `bigquery-public-data.stackoverflow.posts_questions`
WHERE tags like '%google-bigquery%'
ORDER BY view_count DESC
LIMIT 10
"""
with io.capture_output() as captured:
result = ip.run_cell_magic("bigquery", "--use_rest_api", sql)
conn_count_end = len(current_process.connections())
lines = re.split("\n|\r", captured.stdout)
# Removes blanks & terminal code (result of display clearing)
updates = list(filter(lambda x: bool(x) and x != "\x1b[2K", lines))
assert re.match("Executing query with job ID: .*", updates[0])
assert (re.match("Query executing: .*s", line) for line in updates[1:-1])
assert isinstance(result, pandas.DataFrame)
assert len(result) == 10 # verify row count
assert list(result) == ["url", "view_count"] # verify column names
# NOTE: For some reason, the number of open sockets is sometimes one *less*
# than expected when running system tests on Kokoro, thus using the <= assertion.
# That's still fine, however, since the sockets are apparently not leaked.
assert conn_count_end <= conn_count_start # system resources are released
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