def test_0_exact(self):
time_value_pairs_sequence = [
(0, 0),
(5, 0),
(23, 0),
(37, 0),
]
self.assertAlmostEqual(rate_estimate(time_value_pairs_sequence), 0)
def test_negative(self):
time_value_pairs_sequence = [
(0, 100),
(5, 90),
(10, 80),
(15, 70),
]
self.assertAlmostEqual(rate_estimate(time_value_pairs_sequence), -2)
def test_5_exact(self):
time_value_pairs_sequence = [
(0, 12),
(5, 37),
(23, 127),
(37, 197),
]
self.assertAlmostEqual(rate_estimate(time_value_pairs_sequence), 5)
def test_uneven(self):
time_value_pairs_sequence = [
(0, 12),
(5, 27),
(23, 127),
(37, 197),
]
self.assertAlmostEqual(rate_estimate(time_value_pairs_sequence), 4.5185185)
def test_5_per_second_from_12_to_1(self):
time_value_pairs_sequence = [
('2012-08-29 12:59:58 PM', 20),
('2012-08-29 12:59:59 PM', 25),
('2012-08-29 1:00:00 PM', 30),
('2012-08-29 1:00:01 PM', 35),
('2012-08-29 1:00:02 PM', 40),
('2012-08-29 1:00:03 PM', 45),
]
self.assertAlmostEqual(rate_estimate(time_value_pairs_sequence), 5.0)
def test_120_per_minute_span_midnight_with_dates(self):
time_value_pairs_sequence = [
('2012-08-28 23:58', 20),
('2012-08-28 23:59', 140),
('2012-08-29 00:00', 260),
('2012-08-29 00:01', 380),
('2012-08-29 00:02', 500),
('2012-08-29 00:03', 620),
]
self.assertAlmostEqual(rate_estimate(time_value_pairs_sequence), 2.0)
def test_5_per_second(self):
time_value_pairs_sequence = [
('2012-08-29 11:59:58', 20),
('2012-08-29 11:59:59', 25),
('2012-08-29 12:00:00', 30),
('2012-08-29 12:00:01', 35),
('2012-08-29 12:00:02', 40),
('2012-08-29 12:00:03', 45),
]
self.assertAlmostEqual(rate_estimate(time_value_pairs_sequence), 5.0)
def test_real_data(self):
time_value_pairs_sequence = [
('2012-08-29 11:23', 137),
('2012-08-29 12:42', 212),
('2012-08-29 12:57', 223),
('2012-08-29 13:40', 248),
('2012-08-29 15:46', 321),
('2012-08-29 16:21', 338),
]
self.assertAlmostEqual(rate_estimate(time_value_pairs_sequence), 0.01109725045285834)
def test_5_per_minute(self):
time_value_pairs_sequence = [
('2012-08-29 11:57', 20),
('2012-08-29 11:58', 25),
('2012-08-29 11:59', 30),
('2012-08-29 12:00', 35),
('2012-08-29 12:01', 40),
('2012-08-29 12:02', 45),
]
self.assertAlmostEqual(rate_estimate(time_value_pairs_sequence), 0.08333333333333333)
def test_5_per_second_datetime_datetime(self):
time_value_pairs_sequence = [
(datetime.datetime(year=2012, month=8, day=28, hour=23, minute=59, second=58), 20),
(datetime.datetime(year=2012, month=8, day=28, hour=23, minute=59, second=59), 25),
(datetime.datetime(year=2012, month=8, day=29, hour=0, minute=0, second=0), 30),
(datetime.datetime(year=2012, month=8, day=29, hour=0, minute=0, second=1), 35),
(datetime.datetime(year=2012, month=8, day=29, hour=0, minute=0, second=2), 40),
(datetime.datetime(year=2012, month=8, day=29, hour=0, minute=0, second=3), 45),
]
self.assertAlmostEqual(rate_estimate(time_value_pairs_sequence), 5.0)
def test_5_per_second_span_midnight_datetime_time(self):
time_value_pairs_sequence = [
(datetime.time(hour=4, minute=59, second=58), 20),
(datetime.time(hour=4, minute=59, second=59), 25),
(datetime.time(hour=5, minute=0, second=0), 30),
(datetime.time(hour=5, minute=0, second=1), 35),
(datetime.time(hour=5, minute=0, second=2), 40),
(datetime.time(hour=5, minute=0, second=3), 45),
]
self.assertAlmostEqual(rate_estimate(time_value_pairs_sequence), 5.0)
def test_5_per_second_span_midnight_struct_times(self):
def parse_datetime(s):
# Returns a time.struct_time
return time.strptime(s, '%Y-%m-%d %I:%M:%S %p')
time_value_pairs_sequence = [
(parse_datetime('2012-08-28 11:59:58 PM'), 20),
(parse_datetime('2012-08-28 11:59:59 PM'), 25),
(parse_datetime('2012-08-29 12:00:00 AM'), 30),
(parse_datetime('2012-08-29 12:00:01 AM'), 35),
(parse_datetime('2012-08-29 12:00:02 AM'), 40),
(parse_datetime('2012-08-29 12:00:03 AM'), 45),
]
self.assertAlmostEqual(rate_estimate(time_value_pairs_sequence), 5.0)
def test_120_per_minute_span_midnight_yesterday_and_today(self):
try:
from parsedatetime import parsedatetime # http://pypi.python.org/pypi/parsedatetime/
except ImportError:
self.skipTest("This test requires parsedatetime")
time_value_pairs_sequence = [
('yesterday 23:58', 20),
('yesterday 23:59', 140),
('today 00:00', 260),
('today 00:01', 380),
('today 00:02', 500),
('today 00:03', 620),
]
self.assertAlmostEqual(rate_estimate(time_value_pairs_sequence), 2.0)
