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import pytest
import py, sys, os
pytestmark = py.test.mark.skipif("not hasattr(os, 'fork')")
def test_waitfinish_removes_tempdir():
ff = py.process.ForkedFunc(boxf1)
assert ff.tempdir.check()
ff.waitfinish()
assert not ff.tempdir.check()
def test_tempdir_gets_gc_collected(monkeypatch):
monkeypatch.setattr(os, 'fork', lambda: os.getpid())
ff = py.process.ForkedFunc(boxf1)
assert ff.tempdir.check()
ff.__del__()
assert not ff.tempdir.check()
def test_basic_forkedfunc():
result = py.process.ForkedFunc(boxf1).waitfinish()
assert result.out == "some out\n"
assert result.err == "some err\n"
assert result.exitstatus == 0
assert result.signal == 0
assert result.retval == 1
def test_exitstatus():
def func():
os._exit(4)
result = py.process.ForkedFunc(func).waitfinish()
assert result.exitstatus == 4
assert result.signal == 0
assert not result.out
assert not result.err
def test_execption_in_func():
def fun():
raise ValueError(42)
ff = py.process.ForkedFunc(fun)
result = ff.waitfinish()
assert result.exitstatus == ff.EXITSTATUS_EXCEPTION
assert result.err.find("ValueError: 42") != -1
assert result.signal == 0
assert not result.retval
def test_forkedfunc_on_fds():
result = py.process.ForkedFunc(boxf2).waitfinish()
assert result.out == "someout"
assert result.err == "someerr"
assert result.exitstatus == 0
assert result.signal == 0
assert result.retval == 2
def test_forkedfunc_on_fds_output():
result = py.process.ForkedFunc(boxf3).waitfinish()
assert result.signal == 11
assert result.out == "s"
def test_forkedfunc_on_stdout():
def boxf3():
import sys
sys.stdout.write("hello\n")
os.kill(os.getpid(), 11)
result = py.process.ForkedFunc(boxf3).waitfinish()
assert result.signal == 11
assert result.out == "hello\n"
def test_forkedfunc_signal():
result = py.process.ForkedFunc(boxseg).waitfinish()
assert result.retval is None
assert result.signal == 11
def test_forkedfunc_huge_data():
result = py.process.ForkedFunc(boxhuge).waitfinish()
assert result.out
assert result.exitstatus == 0
assert result.signal == 0
assert result.retval == 3
def test_box_seq():
# we run many boxes with huge data, just one after another
for i in range(50):
result = py.process.ForkedFunc(boxhuge).waitfinish()
assert result.out
assert result.exitstatus == 0
assert result.signal == 0
assert result.retval == 3
def test_box_in_a_box():
def boxfun():
result = py.process.ForkedFunc(boxf2).waitfinish()
print (result.out)
sys.stderr.write(result.err + "\n")
return result.retval
result = py.process.ForkedFunc(boxfun).waitfinish()
assert result.out == "someout\n"
assert result.err == "someerr\n"
assert result.exitstatus == 0
assert result.signal == 0
assert result.retval == 2
def test_kill_func_forked():
class A:
pass
info = A()
import time
def box_fun():
time.sleep(10) # we don't want to last forever here
ff = py.process.ForkedFunc(box_fun)
os.kill(ff.pid, 15)
result = ff.waitfinish()
assert result.signal == 15
def test_hooks(monkeypatch):
def _boxed():
return 1
def _on_start():
sys.stdout.write("some out\n")
sys.stdout.flush()
def _on_exit():
sys.stderr.write("some err\n")
sys.stderr.flush()
result = py.process.ForkedFunc(_boxed, child_on_start=_on_start,
child_on_exit=_on_exit).waitfinish()
assert result.out == "some out\n"
assert result.err == "some err\n"
assert result.exitstatus == 0
assert result.signal == 0
assert result.retval == 1
# ======================================================================
# examples
# ======================================================================
#
def boxf1():
sys.stdout.write("some out\n")
sys.stderr.write("some err\n")
return 1
def boxf2():
os.write(1, "someout".encode('ascii'))
os.write(2, "someerr".encode('ascii'))
return 2
def boxf3():
os.write(1, "s".encode('ascii'))
os.kill(os.getpid(), 11)
def boxseg():
os.kill(os.getpid(), 11)
def boxhuge():
s = " ".encode('ascii')
os.write(1, s * 10000)
os.write(2, s * 10000)
os.write(1, s * 10000)
os.write(1, s * 10000)
os.write(2, s * 10000)
os.write(2, s * 10000)
os.write(1, s * 10000)
return 3
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