def test_key_not_in_cache(self):
unit_system = random.randint(1, 10)
SUT = Cache(unit_system)
value = SUT.get_value('foo', 0, None)
self.assertIsNone(value)
def test_get_data_is_not_expired(self):
unit_system = random.randint(1, 10)
SUT = Cache(unit_system)
key = ''.join([
random.choice(string.ascii_letters + string.digits)
for n in range(32)
])
value = round(random.uniform(1, 100), 2)
timestamp = time.time()
SUT.update_value(key, value, unit_system, timestamp)
cached_value = SUT.get_value(key, timestamp, 1)
self.assertEqual(cached_value, value)
def test_value_is_updated(self):
unit_system = random.randint(1, 10)
SUT = Cache(unit_system)
key = ''.join([
random.choice(string.ascii_letters + string.digits)
for n in range(32)
])
value = round(random.uniform(1, 100), 2)
timestamp = time.time()
SUT.update_value(key, value, unit_system, timestamp)
self.assertIn(key, SUT.cached_values)
self.assertEqual(SUT.cached_values[key]['value'], value)
self.assertEqual(SUT.cached_values[key]['timestamp'], timestamp)
def test_mismatch_unit_system(self):
unit_system = random.randint(1, 10)
SUT = Cache(unit_system)
key = ''.join([
random.choice(string.ascii_letters + string.digits)
for n in range(32)
])
value = round(random.uniform(1, 100), 2)
timestamp = time.time()
unit_system_mismatch = random.randint(11, 20)
self.assertRaises(ValueError, SUT.update_value, key, value,
unit_system_mismatch, timestamp)
def test_key_exists(self):
unit_system = random.randint(1, 10)
SUT = Cache(unit_system)
key = ''.join([
random.choice(string.ascii_letters + string.digits)
for n in range(32)
])
value = round(random.uniform(1, 100), 2)
SUT.update_value(key, value, unit_system, time.time())
SUT.remove_value(key)
self.assertNotIn(key, SUT.cached_values)
def test_key_exists(self):
unit_system = random.randint(1, 10)
SUT = Cache(unit_system)
key = ''.join([
random.choice(string.ascii_letters + string.digits)
for n in range(32)
])
value = round(random.uniform(1, 100), 2)
SUT.update_value(key, value, unit_system, 0)
new_time = time.time()
SUT.update_timestamp(key, new_time)
self.assertEqual(SUT.cached_values[key]['timestamp'], new_time)
def test_key_does_not_exist(self):
# somewhat silly test
unit_system = random.randint(1, 10)
SUT = Cache(unit_system)
key = ''.join([
random.choice(string.ascii_letters + string.digits)
for n in range(32)
])
value = round(random.uniform(1, 100), 2)
SUT.update_value(key, value, unit_system, time.time())
nonexisting_key = ''.join([
random.choice(string.ascii_letters + string.digits)
for n in range(32)
])
SUT.update_timestamp(nonexisting_key, time.time())
self.assertNotIn(nonexisting_key, SUT.cached_values)