def test_return_value_order(self):
"""Tests that return values are returned in the order the functions are passed to run_parallel"""
def return_first():
time.sleep(0.0)
return 1
def return_second():
time.sleep(0.1)
return 2
def return_third():
time.sleep(0.2)
return 3
def return_fourth():
time.sleep(0.3)
return 4
val1, val2, val3, val4 = run_parallel(
return_second,
return_first,
return_third,
return_fourth
)
self.assertEqual(val1, 2)
self.assertEqual(val2, 1)
self.assertEqual(val3, 3)
self.assertEqual(val4, 4)
def test_return_value_order(self):
"""Tests that return values are returned in the order the functions are passed to run_parallel"""
def return_first():
time.sleep(0.0)
return 1
def return_second():
time.sleep(0.1)
return 2
def return_third():
time.sleep(0.2)
return 3
def return_fourth():
time.sleep(0.3)
return 4
for use_multiprocess in (True, False):
val1, val2, val3, val4 = run_parallel([
return_second,
return_first,
return_third,
return_fourth], multiprocess=use_multiprocess)
self.assertEqual(val1, 2)
self.assertEqual(val2, 1)
self.assertEqual(val3, 3)
self.assertEqual(val4, 4)
def test_return_value_order(self):
"""Tests that return values are returned in the order the functions are passed to run_parallel"""
def return_first():
time.sleep(0.0)
return 1
def return_second():
time.sleep(0.1)
return 2
def return_third():
time.sleep(0.2)
return 3
def return_fourth():
time.sleep(0.3)
return 4
val1, val2, val3, val4 = run_parallel(return_second, return_first,
return_third, return_fourth)
self.assertEqual(val1, 2)
self.assertEqual(val2, 1)
self.assertEqual(val3, 3)
self.assertEqual(val4, 4)
def test_error_capture(self):
"""Tests the error "capture" functionality of run_parallel. When an exception is raised in a process,
the parent process will hang forever. So we should be capturing the errors and attaching them onto the
exception thrown in the parent process.
"""
def function_no_error():
return 1 + 1
def funtion_error():
raise ValueError('Error in values!')
try:
val1, val2 = run_parallel(function_no_error, funtion_error)
except Exception, e:
self.assertIsInstance(e, ErrorInProcessException)
self.assertEqual(1, len(e.errors))
def test_error_capture(self):
"""Tests the error "capture" functionality of run_parallel. When an exception is raised in a process,
the parent process will hang forever. So we should be capturing the errors and attaching them onto the
exception thrown in the parent process.
"""
def function_no_error():
return 1+1
def funtion_error():
raise ValueError('Error in values!')
try:
val1, val2 = run_parallel(
function_no_error,
funtion_error
)
except Exception, e:
self.assertIsInstance(e, ErrorInProcessException)
self.assertEqual(1, len(e.errors))