/usr/lib/python2.7/dist-packages/ginga/misc/tests/test_Future.py is in python-ginga 2.6.1-2.
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# Unit Tests for the Future class
#
# Rajul Srivastava (rajul09@gmail.com)
#
import unittest
import logging
import threading
import time
import sys
from ginga.misc.Future import Future, TimeoutError
class TestError(Exception):
pass
class TestFuture(unittest.TestCase):
def setUp(self):
self.future_thread = None
def test_init(self):
test_future = Future()
assert hasattr(test_future, 'cb')
if sys.version_info.major == 2:
assert isinstance(test_future.evt, threading._Event)
elif sys.version_info.major == 3:
assert isinstance(test_future.evt, threading.Event)
assert test_future.evt.isSet() == False
assert test_future.res == None
assert test_future.data == None
assert 'resolved' in test_future.cb
expected = []
actual = test_future.cb['resolved']
assert expected == actual
def test_init_with_data(self):
test_future = Future("TestData")
assert hasattr(test_future, 'cb')
if sys.version_info.major == 2:
assert isinstance(test_future.evt, threading._Event)
elif sys.version_info.major == 3:
assert isinstance(test_future.evt, threading.Event)
assert test_future.evt.isSet() == False
assert test_future.res == None
assert test_future.data == "TestData"
assert 'resolved' in test_future.cb
expected = []
actual = test_future.cb['resolved']
assert expected == actual
def test_get_data_no_data(self):
test_future = Future()
expected = None
actual = test_future.get_data()
assert expected == actual
def test_get_data_some_data(self):
test_future = Future("TestData")
expected = "TestData"
actual = test_future.get_data()
assert expected == actual
def test_freeze(self):
test_future = Future("TestData")
def test_method(*args, **kwargs):
pass
test_future.freeze(
test_method, "arg1", "arg2", kwarg1="test", kwarg2="test")
assert test_future.method == test_method
assert test_future.args == ("arg1", "arg2")
assert test_future.kwdargs == {"kwarg1": "test", "kwarg2": "test"}
def test_freeze_empty_args(self):
test_future = Future("TestData")
def test_method():
pass
test_future.freeze(test_method)
assert test_future.method == test_method
assert test_future.args == ()
assert test_future.kwdargs == {}
def test_thaw_suppress_exception_no_exception(self):
test_future = Future("TestData")
def test_method(*args, **kwargs):
return True
test_future.freeze(test_method)
expected = True
actual = test_future.thaw()
assert expected == actual
assert test_future.res == True
assert test_future.evt.isSet() == True
def test_thaw_suppress_exception_exception(self):
test_future = Future("TestData")
def test_method():
return True
test_future.freeze(
test_method, "arg1", "arg2", kwarg1="test", kwarg2="test")
test_result = test_future.thaw()
assert isinstance(test_result, TypeError)
assert isinstance(test_future.res, TypeError)
assert test_future.evt.isSet() == True
def test_thaw_not_suppress_exception_no_exception(self):
test_future = Future("TestData")
def test_method(*args, **kwargs):
return True
test_future.freeze(test_method)
expected = True
actual = test_future.thaw(False)
assert expected == actual
assert test_future.res == True
assert test_future.evt.isSet() == True
def test_thaw_not_suppress_exception_raise_exception(self):
test_future = Future("TestData")
def test_method():
return True
test_future.freeze(
test_method, "arg1", "arg2", kwarg1="test", kwarg2="test")
self.assertRaises(TypeError, test_future.thaw, False)
assert test_future.res == None
assert test_future.evt.isSet() == False
def test_has_value_unset(self):
test_future = Future("TestData")
expected = False
actual = test_future.has_value()
assert expected == actual
def test_has_value_set(self):
test_future = Future("TestData")
test_future.evt.set()
expected = True
actual = test_future.has_value()
assert expected == actual
def test_resolve(self):
test_future = Future("TestData")
test_future.resolve(True)
assert test_future.res == True
assert test_future.evt.isSet() == True
def test_resolve_callback(self):
test_future = Future("TestData")
def test_callback(obj):
try:
obj.res = not obj.res
except:
pass
test_future.add_callback('resolved', test_callback)
test_future.resolve(True)
# Callback reverses the boolean 'res' value
assert test_future.res == False
assert test_future.evt.isSet() == True
def test_wait(self):
test_future = Future("TestData")
def test_method(*args, **kwargs):
time.sleep(2)
return True
test_future.freeze(test_method)
self.future_thread = threading.Thread(target=test_future.thaw)
self.future_thread.start()
expected = True
actual = test_future.wait()
assert expected == actual
def test_wait_timeout(self):
test_future = Future("TestData")
def test_method(*args, **kwargs):
time.sleep(2)
return True
test_future.freeze(test_method)
self.future_thread = threading.Thread(target=test_future.thaw)
self.future_thread.start()
self.assertRaises(TimeoutError, test_future.wait, 1)
def test_get_value_block_no_timeout(self):
test_future = Future("TestData")
def test_method(*args, **kwargs):
time.sleep(2)
return True
test_future.freeze(test_method)
self.future_thread = threading.Thread(target=test_future.thaw)
self.future_thread.start()
expected = True
actual = test_future.get_value()
assert expected == actual
def test_get_value_block_timeout(self):
test_future = Future("TestData")
def test_method(*args, **kwargs):
time.sleep(2)
return True
test_future.freeze(test_method)
self.future_thread = threading.Thread(target=test_future.thaw)
self.future_thread.start()
self.assertRaises(
TimeoutError, test_future.get_value, True, 1)
def test_get_value_no_block_fail(self):
test_future = Future("TestData")
def test_method(*args, **kwargs):
time.sleep(2)
return True
test_future.freeze(test_method)
self.future_thread = threading.Thread(target=test_future.thaw)
self.future_thread.start()
self.assertRaises(TimeoutError, test_future.get_value, False)
def test_get_value_no_block_pass(self):
test_future = Future("TestData")
def test_method(*args, **kwargs):
return True
test_future.freeze(test_method)
self.future_thread = threading.Thread(target=test_future.thaw)
self.future_thread.start()
# Making the test running thread to sleep for a while
# for the self.future_thread to complete and ensure success
time.sleep(0.5)
expected = True
actual = test_future.get_value()
assert expected == actual
def test_get_value_suppress_exception(self):
test_future = Future("TestData")
def test_method(*args, **kwargs):
raise TestError("Test Error")
test_future.freeze(test_method)
self.future_thread = threading.Thread(target=test_future.thaw)
self.future_thread.start()
future_value = test_future.get_value(True, None, True)
assert isinstance(future_value, Exception)
def test_get_value_no_suppress_exception(self):
test_future = Future("TestData")
def test_method(*args, **kwargs):
raise TestError("Test Error")
test_future.freeze(test_method)
self.future_thread = threading.Thread(target=test_future.thaw)
self.future_thread.start()
self.assertRaises(TestError, test_future.get_value)
def tearDown(self):
if self.future_thread != None:
self.future_thread.join()
if __name__ == '__main__':
unittest.main()
# END
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