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test_track_check.py
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test_track_check.py
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import unittest
import qc
import math
import Extended_IMMA as ex
from IMMA1 import IMMA
import numpy as np
import spherical_geometry as sph
import track_check as tc
from netCDF4 import Dataset
class TestTrackQCMethodsIncrementPosition(unittest.TestCase):
# increment_position(alat1,alat2,avs,ads,timdif)
def test_ship_heading_north_at_60knots_goes1degree_in_1hour(self):
"""
A ship travelling north at 60 knots will go 1 degree in 1 hours
"""
km_to_nm = 0.539957
for lat in range(-90, 90):
alat1 = lat
alon1 = lat
avs = 60.0 / km_to_nm
ads = 0.0
timdif = 2.0
alat2, alon2 = tc.increment_position(alat1, alon1, avs, ads, timdif)
self.assertAlmostEqual(alon2, 0, delta=0.001)
self.assertAlmostEqual(alat2, 1, delta=0.001)
def test_ship_heading_east_at_60knots_goes1degree_in_1hour(self):
"""
A ship travelling east at 60 knots will go 1 degree in 1 hour
"""
km_to_nm = 0.539957
alat1 = 0.0
alat2 = 0.0
avs = 60.0 / km_to_nm
ads = 90.0
timdif = 2.0
aud1, avd1 = tc.increment_position(alat1, alat2, avs, ads, timdif)
self.assertAlmostEqual(avd1, 1, delta=0.001)
self.assertAlmostEqual(aud1, 0, delta=0.001)
def test_ship_heading_east_at_60knots_at_latitude60_goes2degrees_in_1hour(self):
"""
A ship travelling east at 60 knots will go 2 degrees in 1 hour at 60N
"""
km_to_nm = 0.539957
alat = 60.0
alon = 0.0
avs = 60.0 / km_to_nm
ads = 90.0
timdif = 2.0
dlat, dlon = tc.increment_position(alat, alon, avs, ads, timdif)
distance = sph.sphere_distance(alat, alon, alat + dlat, alon + dlon) * km_to_nm
self.assertAlmostEqual(distance, 60, delta=0.0001)
def test_ship_goes_southwest(self):
km_to_nm = 0.539957
alat1 = 0.0
alat2 = 0.0
avs = 60.0 / km_to_nm
ads = 225.0
timdif = 2.0
aud1, avd1 = tc.increment_position(alat1, alat2, avs, ads, timdif)
self.assertAlmostEqual(avd1, -1. / np.sqrt(2), delta=0.001)
self.assertAlmostEqual(aud1, -1. / np.sqrt(2), delta=0.001)
class TestTrackQCMethodsModesp(unittest.TestCase):
def test_noinput(self):
m = tc.modesp([])
self.assertEqual(None, m)
def test_one_input(self):
m = tc.modesp([17.0])
self.assertEqual(None, m)
def test_single_speed_input_over8point5(self):
km_to_nm = 0.539957
speeds = [20.0 / km_to_nm, 20.0 / km_to_nm, 20.0 / km_to_nm, 20.0 / km_to_nm, 20.0 / km_to_nm, 20.0 / km_to_nm]
m = tc.modesp(speeds)
self.assertEqual(19.5 / km_to_nm, m)
def test_single_speed_input_under8point5(self):
km_to_nm = 0.539957
speeds = [2.0 / km_to_nm, 2.0 / km_to_nm, 2.0 / km_to_nm, 2.0 / km_to_nm, 2.0 / km_to_nm, 2.0 / km_to_nm]
m = tc.modesp(speeds)
self.assertEqual(8.5 / km_to_nm, m)
def test_single_speed_input_overmaximum(self):
km_to_nm = 0.539957
speeds = [200.0 / km_to_nm, 200.0 / km_to_nm, 200.0 / km_to_nm, 200.0 / km_to_nm, 200.0 / km_to_nm,
200.0 / km_to_nm]
m = tc.modesp(speeds)
self.assertEqual(34.5 / km_to_nm, m)
def test_one_of_each_speed_input_min_under8point5(self):
km_to_nm = 0.539957
speeds = []
for i in range(1, 20):
speeds.append(i / km_to_nm)
m = tc.modesp(speeds)
self.assertEqual(8.5 / km_to_nm, m)
class TestTrackQCMethodsDistr1(unittest.TestCase):
# rec = IMMA()
# v = {'ID':'SHIP1 ', 'YR':2001, 'MO':1, 'DY':1, 'HR':hour, 'LAT': hour*speed1/60., 'LON':0.0, 'DS':8, 'VS':4 }
# for key in v: rec.data[key] = v[key]
# self.trip1.add_report(ex.MarineReport(rec))
# shipid, lat, lon, sst, mat, year, month, day, hour, icoads_ds, icoads_vs, uid
def setUp(self):
self.km_to_nm = 0.539957
self.trip1 = ex.Voyage()
self.speed1 = 18. / self.km_to_nm
for hour in range(0, 24):
rec = IMMA()
v = {'ID': 'SHIP1 ', 'YR': 2001, 'MO': 1, 'DY': 1, 'HR': hour,
'LAT': hour * self.speed1 * 360. / (2 * np.pi * 6371.0088), 'LON': 0.0, 'DS': 8, 'VS': 4}
for key in v:
rec.data[key] = v[key]
self.trip1.add_report(ex.MarineReport(rec))
self.trip2 = ex.Voyage()
self.speed1 = 18. / self.km_to_nm
for hour in range(0, 3):
rec = IMMA()
v = {'ID': 'SHIP1 ', 'YR': 2001, 'MO': 1, 'DY': 1, 'HR': hour,
'LAT': hour * self.speed1 * 360. / (2 * np.pi * 6371.0088), 'LON': 0.0, 'DS': 8, 'VS': 4}
for key in v:
rec.data[key] = v[key]
self.trip2.add_report(ex.MarineReport(rec))
self.trip2.reps[1].setvar('LON', 1.0)
def test_first_entry_missing(self):
difference_from_estimated_location = tc.distr1(self.trip1)
self.assertEqual(difference_from_estimated_location[0], None)
def test_ship_is_at_computed_location(self):
difference_from_estimated_location = tc.distr1(self.trip1)
for i, diff in enumerate(difference_from_estimated_location):
if 0 < i < len(difference_from_estimated_location) - 1:
self.assertAlmostEqual(diff, 0, delta=0.00001)
def test_misplaced_ob_out_by_1degree_times_coslat(self):
difference_from_estimated_location = tc.distr1(self.trip2)
self.assertAlmostEqual(difference_from_estimated_location[1],
(2 * np.pi * 6371.0088) * np.cos(self.trip2.reps[1].lat() * np.pi / 180.) / 360.,
delta=0.00001)
class TestTrackQCMethodsDistr2(unittest.TestCase):
def setUp(self):
self.km_to_nm = 0.539957
self.trip1 = ex.Voyage()
self.speed1 = 18. / self.km_to_nm
for hour in range(0, 24):
rec = IMMA()
v = {'ID': 'SHIP1 ', 'YR': 2001, 'MO': 1, 'DY': 1, 'HR': hour,
'LAT': hour * self.speed1 * 360. / (2 * np.pi * 6371.0088), 'LON': 0.0, 'DS': 8, 'VS': 4}
for key in v:
rec.data[key] = v[key]
self.trip1.add_report(ex.MarineReport(rec))
self.trip2 = ex.Voyage()
self.speed1 = 18. / self.km_to_nm
for hour in range(0, 3):
rec = IMMA()
v = {'ID': 'SHIP1 ', 'YR': 2001, 'MO': 1, 'DY': 1, 'HR': hour,
'LAT': hour * self.speed1 * 360. / (2 * np.pi * 6371.0088), 'LON': 0.0, 'DS': 8, 'VS': 4}
for key in v:
rec.data[key] = v[key]
self.trip2.add_report(ex.MarineReport(rec))
self.trip2.reps[1].setvar('LON', 1.0)
def test_last_entry_missing(self):
difference_from_estimated_location = tc.distr2(self.trip1)
self.assertEqual(difference_from_estimated_location[-1], None)
def test_ship_is_at_computed_location(self):
difference_from_estimated_location = tc.distr2(self.trip1)
for i, diff in enumerate(difference_from_estimated_location):
if 0 < i < len(difference_from_estimated_location) - 1:
self.assertAlmostEqual(diff, 0, delta=0.00001)
def test_misplaced_ob_out_by_1degree_times_coslat(self):
difference_from_estimated_location = tc.distr2(self.trip2)
self.assertAlmostEqual(difference_from_estimated_location[1],
(2 * np.pi * 6371.0088) * np.cos(self.trip2.reps[1].lat() * np.pi / 180.) / 360.,
delta=0.00001)
class TestTrackQCMethodsMidpt(unittest.TestCase):
# midpoint_discrepancies = midpt(inreps,time_differences)
def setUp(self):
self.km_to_nm = 0.539957
self.trip1 = ex.Voyage()
self.speed1 = 18. / self.km_to_nm
for hour in range(0, 24):
rec = IMMA()
v = {'ID': 'SHIP1 ', 'YR': 2001, 'MO': 1, 'DY': 1, 'HR': hour,
'LAT': hour * self.speed1 * 360. / (2 * np.pi * 6371.0088), 'LON': 0.0, 'DS': 8, 'VS': 4}
for key in v:
rec.data[key] = v[key]
self.trip1.add_report(ex.MarineReport(rec))
self.trip2 = ex.Voyage()
self.speed1 = 18. / self.km_to_nm
for hour in range(0, 3):
rec = IMMA()
v = {'ID': 'SHIP1 ', 'YR': 2001, 'MO': 1, 'DY': 1, 'HR': hour,
'LAT': hour * self.speed1 * 360. / (2 * np.pi * 6371.0088), 'LON': 0.0, 'DS': 8, 'VS': 4}
for key in v:
rec.data[key] = v[key]
self.trip2.add_report(ex.MarineReport(rec))
self.trip2.reps[1].setvar('LON', 1.0)
def test_first_and_last_are_missing(self):
midpoint_discrepancies = tc.midpt(self.trip1)
self.assertEqual(midpoint_discrepancies[0], None)
self.assertEqual(midpoint_discrepancies[-1], None)
def test_midpt_1_deg_error_out_by_60coslat(self):
midpoint_discrepancies = tc.midpt(self.trip2)
self.assertAlmostEqual(midpoint_discrepancies[1],
(2 * np.pi * 6371.0088) * math.cos(self.trip2.reps[1].lat() * np.pi / 180) / 360.,
delta=0.00001)
def test_midpt_at_computed_location(self):
midpoint_discrepancies = tc.midpt(self.trip1)
for i, pt in enumerate(midpoint_discrepancies):
if 0 < i < len(midpoint_discrepancies) - 1:
self.assertNotEqual(pt, None, 'Failed at ' + str(i) + ' out of ' + str(len(midpoint_discrepancies)))
self.assertAlmostEqual(pt, 0, msg='Failed at ' + str(i) + ' with mid point = ' + str(pt), delta=0.00001)
class TestTrackQCMethodsDirectionContinuity(unittest.TestCase):
# result = direction_continuity(dsi,dsi_previous,ship_directions)
def test_just_pass_and_just_fail(self):
for angle in [0, 45, 90, 135, 180, 225, 270, 315, 360]:
self.assertEqual(10, tc.direction_continuity(angle, angle, angle + 60.1))
self.assertEqual(0, tc.direction_continuity(angle, angle, angle + 59.9))
class TestTrackQCMethodsSpeedContinuity(unittest.TestCase):
def test_1(self):
km_to_nm = 0.539957
result = tc.speed_continuity(12, 12, 12 / km_to_nm)
self.assertEqual(0, result)
def test_just_fails(self):
km_to_nm = 0.539957
result = tc.speed_continuity(12, 12, (12 + 10.01) / km_to_nm)
self.assertEqual(10, result)
def test_just_passes(self):
km_to_nm = 0.539957
result = tc.speed_continuity(12, 12, (12 + 9.99) / km_to_nm)
self.assertEqual(0, result)
def test_input_speed_is_None(self):
result = tc.speed_continuity(12, 12, None)
self.assertEqual(0, result)
if __name__ == '__main__':
unittest.main()