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test_autosave.py
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test_autosave.py
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from multiprocessing import Process
import multiprocessing
import faultguard
import numpy as np
import time
import sys
import os
def launch(faultguard_data, args):
"""
Demo software main method
:param faultguard_data: Faultguard data dictionary
:param args: Data passed from faultguard.start.
"""
print("Launching demo")
print(multiprocessing.current_process())
# Some important data
important_data_1 = np.array([1,2,3])
important_data_2 = args[0] + " " + args[1]
# Some dummy important data manipulation
for i in range(1):
important_data_1[i%3] = i
important_data_2 += str(i)
print("important_data_1:", important_data_1)
print("important_data_2:", important_data_2)
# Sending important data to faultguard process
faultguard_data["important_data_1"] = important_data_1
faultguard_data["important_data_2"] = important_data_2
time.sleep(4)
def rescue(faultguard_data, exit_code, args):
raise RuntimeError("Rescue handler was triggered unexpectedly...")
def run_test():
# Run test with long autosave interval to be independent on startup times
faultguard.start(launch, rescue, args=("Hello", "World"), autosave_interval=1, autosave_file="test.tmp.xz")
def recover(faultguard_data):
important_data_1 = faultguard_data["important_data_1"]
important_data_2 = faultguard_data["important_data_2"]
# You might need to assign the class here by important_data_1.__class__ = ...
print("important_data_1:", important_data_1)
print("important_data_2:", important_data_2)
assert np.all(important_data_1 == [0, 2, 3])
assert important_data_2 == "Hello World0"
def test_main():
# Prepare test environment
if os.path.isfile("test.tmp.xz"):
os.remove("test.tmp.xz")
if os.path.isfile("test.tmp.xz.tmp"):
os.remove("test.tmp.xz.tmp")
p = Process(target=run_test)
# Run process
p.start()
p.join(3)
assert faultguard.is_active("test.tmp.xz")
os.rename("test.tmp.xz", "test.tmp.xz.backup")
p.join()
import time
time.sleep(3)
assert not faultguard.is_active("test.tmp.xz.backup")
os.rename("test.tmp.xz.backup", "test.tmp.xz")
assert faultguard.recover(recover, "test.tmp.xz") == 0
os.rename("test.tmp.xz", "test.tmp.xz.tmp")
with open("test.tmp.xz", "w") as f:
f.write("Test")
assert faultguard.recover(recover, "test.tmp.xz") == 1
os.remove("test.tmp.xz")
os.remove("test.tmp.xz.tmp")