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import _thread
import sys
import unittest
import fudge
from nose.exc import SkipTest
from nose.tools import eq_, raises
from fudge import (
Fake, Registry, ExpectedCall, ExpectedCallOrder, Call, CallStack, FakeDeclarationError)
class TestRegistry(unittest.TestCase):
def setUp(self):
self.fake = fudge.Fake()
self.reg = fudge.registry
# in case of error, clear out everything:
self.reg.clear_all()
def tearDown(self):
pass
@raises(AssertionError)
def test_expected_call_not_called(self):
self.reg.clear_calls()
self.reg.expect_call(ExpectedCall(self.fake, 'nothing'))
self.reg.verify()
def test_clear_calls_resets_calls(self):
exp = ExpectedCall(self.fake, 'callMe')
self.reg.expect_call(exp)
exp()
eq_(exp.was_called, True)
self.reg.clear_calls()
eq_(exp.was_called, False, "call was not reset by clear_calls()")
def test_clear_calls_resets_call_order(self):
exp_order = ExpectedCallOrder(self.fake)
exp = ExpectedCall(self.fake, 'callMe', call_order=exp_order)
exp_order.add_expected_call(exp)
self.reg.remember_expected_call_order(exp_order)
exp()
eq_(exp_order._actual_calls, [exp])
self.reg.clear_calls()
eq_(exp_order._actual_calls, [], "call order calls were not reset by clear_calls()")
def test_verify_resets_calls(self):
exp = ExpectedCall(self.fake, 'callMe')
exp()
eq_(exp.was_called, True)
eq_(len(self.reg.get_expected_calls()), 1)
self.reg.verify()
eq_(exp.was_called, False, "call was not reset by verify()")
eq_(len(self.reg.get_expected_calls()), 1, "verify() should not reset expectations")
def test_verify_resets_call_order(self):
exp_order = ExpectedCallOrder(self.fake)
exp = ExpectedCall(self.fake, 'callMe', call_order=exp_order)
exp_order.add_expected_call(exp)
self.reg.remember_expected_call_order(exp_order)
exp()
eq_(exp_order._actual_calls, [exp])
self.reg.verify()
eq_(exp_order._actual_calls, [], "call order calls were not reset by verify()")
def test_global_verify(self):
exp = ExpectedCall(self.fake, 'callMe')
exp()
eq_(exp.was_called, True)
eq_(len(self.reg.get_expected_calls()), 1)
fudge.verify()
eq_(exp.was_called, False, "call was not reset by verify()")
eq_(len(self.reg.get_expected_calls()), 1, "verify() should not reset expectations")
def test_global_clear_expectations(self):
exp = ExpectedCall(self.fake, 'callMe')
exp()
eq_(len(self.reg.get_expected_calls()), 1)
exp_order = ExpectedCallOrder(self.fake)
self.reg.remember_expected_call_order(exp_order)
eq_(list(self.reg.get_expected_call_order().keys()), [self.fake])
fudge.clear_expectations()
eq_(len(self.reg.get_expected_calls()), 0,
"clear_expectations() should reset expectations")
eq_(len(list(self.reg.get_expected_call_order().keys())), 0,
"clear_expectations() should reset expected call order")
def test_multithreading(self):
if sys.platform.startswith('java'):
raise SkipTest('this test is flaky in Jython')
reg = fudge.registry
class thread_run:
waiting = 5
errors = []
# while this barely catches collisions
# it ensures that each thread can use the registry ok
def registry(num):
try:
try:
fudge.clear_calls()
fudge.clear_expectations()
exp_order = ExpectedCallOrder(self.fake)
reg.remember_expected_call_order(exp_order)
eq_(len(list(reg.get_expected_call_order().keys())), 1)
# registered first time on __init__ :
exp = ExpectedCall(self.fake, 'callMe', call_order=exp_order)
reg.expect_call(exp)
reg.expect_call(exp)
reg.expect_call(exp)
eq_(len(reg.get_expected_calls()), 4)
# actual calls:
exp()
exp()
exp()
exp()
fudge.verify()
fudge.clear_expectations()
except Exception as er:
thread_run.errors.append(er)
raise
finally:
thread_run.waiting -= 1
_thread.start_new_thread(registry, (1,))
_thread.start_new_thread(registry, (2,))
_thread.start_new_thread(registry, (3,))
_thread.start_new_thread(registry, (4,))
_thread.start_new_thread(registry, (5,))
count = 0
while thread_run.waiting > 0:
count += 1
import time
time.sleep(0.25)
if count == 60:
raise RuntimeError("timed out waiting for thread")
if len(thread_run.errors):
raise RuntimeError(
"Error(s) in thread: %s" % ["%s: %s" % (
e.__class__.__name__, e) for e in thread_run.errors])
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