pulumi/sdk/python/lib/test/automation/test_stack.py

65 lines
2.2 KiB
Python

# Copyright 2024-2024, Pulumi Corporation.
#
# 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
#
# http://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.
import asyncio
import os
import tempfile
import time
import unittest
from pulumi.automation._stack import _watch_logs
from pulumi.automation import EngineEvent, StdoutEngineEvent
class TestStack(unittest.IsolatedAsyncioTestCase):
async def test_always_read_complete_lines(self):
tmp = tempfile.NamedTemporaryFile(delete=False)
async def write_lines(tmp):
with open(tmp, "w") as f:
parts = [
'{"stdoutEvent": ',
'{"message": "hello", "color": "blue"}',
"}\n",
'{"stdoutEvent": ',
'{"message": "world"',
', "color": "red"}}\n',
'{"cancelEvent": {}}\n',
]
for part in parts:
f.write(part)
f.flush()
time.sleep(0.2)
write_task = asyncio.create_task(write_lines(tmp.name))
event_num = 0
def callback(event):
nonlocal event_num
if event_num == 0:
self.assertTrue(event.stdout_event)
self.assertEqual(event.stdout_event.message, "hello")
self.assertEqual(event.stdout_event.color, "blue")
elif event_num == 1:
self.assertTrue(event.stdout_event)
self.assertEqual(event.stdout_event.message, "world")
self.assertEqual(event.stdout_event.color, "red")
event_num += 1
async def watch_async():
_watch_logs(tmp.name, callback)
watch_task = asyncio.create_task(watch_async())
await asyncio.gather(write_task, watch_task)