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mitogen/tests/master_test.py

117 lines
3.4 KiB
Python

import subprocess
import time
import unittest
import testlib
import mitogen.master
class ScanCodeImportsTest(unittest.TestCase):
func = staticmethod(mitogen.master.scan_code_imports)
def test_simple(self):
co = compile(open(__file__).read(), __file__, 'exec')
self.assertEquals(list(self.func(co)), [
(-1, 'subprocess', ()),
(-1, 'time', ()),
(-1, 'unittest', ()),
(-1, 'testlib', ()),
(-1, 'mitogen.master', ()),
])
class IterReadTest(unittest.TestCase):
func = staticmethod(mitogen.master.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):
assert 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:
assert 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.
assert 3 < len(got) < 5
finally:
proc.terminate()
class WriteAllTest(unittest.TestCase):
func = staticmethod(mitogen.master.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__':
unittest.main()