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mitogen/tests/parent_test.py

113 lines
3.3 KiB
Python

import os
import subprocess
import time
import unittest2
import mitogen.parent
import testlib
class ContextTest(testlib.RouterMixin, unittest2.TestCase):
def test_context_shutdown(self):
local = self.router.local()
pid = local.call(os.getpid)
local.shutdown(wait=True)
self.assertRaises(OSError, lambda: os.kill(pid, 0))
class IterReadTest(unittest2.TestCase):
func = staticmethod(mitogen.parent.iter_read)
def make_proc(self):
args = [testlib.data_path('iter_read_generator.sh')]
proc = subprocess.Popen(args, stdout=subprocess.PIPE)
mitogen.core.set_nonblock(proc.stdout.fileno())
return proc
def test_no_deadline(self):
proc = self.make_proc()
try:
reader = self.func(proc.stdout.fileno())
for i, chunk in enumerate(reader, 1):
self.assertEqual(i, int(chunk))
if i > 3:
break
finally:
proc.terminate()
def test_deadline_exceeded_before_call(self):
proc = self.make_proc()
reader = self.func(proc.stdout.fileno(), 0)
try:
got = []
try:
for chunk in reader:
got.append(chunk)
assert 0, 'TimeoutError not raised'
except mitogen.core.TimeoutError:
self.assertEqual(len(got), 0)
finally:
proc.terminate()
def test_deadline_exceeded_during_call(self):
proc = self.make_proc()
reader = self.func(proc.stdout.fileno(), time.time() + 0.4)
try:
got = []
try:
for chunk in reader:
got.append(chunk)
assert 0, 'TimeoutError not raised'
except mitogen.core.TimeoutError:
# Give a little wiggle room in case of imperfect scheduling.
# Ideal number should be 9.
self.assertLess(3, len(got))
self.assertLess(len(got), 5)
finally:
proc.terminate()
class WriteAllTest(unittest2.TestCase):
func = staticmethod(mitogen.parent.write_all)
def make_proc(self):
args = [testlib.data_path('write_all_consumer.sh')]
proc = subprocess.Popen(args, stdin=subprocess.PIPE)
mitogen.core.set_nonblock(proc.stdin.fileno())
return proc
ten_ms_chunk = ('x' * 65535)
def test_no_deadline(self):
proc = self.make_proc()
try:
self.func(proc.stdin.fileno(), self.ten_ms_chunk)
finally:
proc.terminate()
def test_deadline_exceeded_before_call(self):
proc = self.make_proc()
try:
self.assertRaises(mitogen.core.TimeoutError, (
lambda: self.func(proc.stdin.fileno(), self.ten_ms_chunk, 0)
))
finally:
proc.terminate()
def test_deadline_exceeded_during_call(self):
proc = self.make_proc()
try:
deadline = time.time() + 0.1 # 100ms deadline
self.assertRaises(mitogen.core.TimeoutError, (
lambda: self.func(proc.stdin.fileno(),
self.ten_ms_chunk * 100, # 1s of data
deadline)
))
finally:
proc.terminate()
if __name__ == '__main__':
unittest2.main()