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test_physics.py
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174 lines (145 loc) · 6 KB
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import physics
import unittest
import numpy as np
class TestPhysics(unittest.TestCase):
def test_calculate_buoyancy(self):
self.assertEqual(physics.calculate_buoyancy(50, 1000), 490500)
self.assertEqual(physics.calculate_buoyancy(37, 526), 190922.22)
self.assertNotEqual(physics.calculate_buoyancy(5, 20), 200)
with self.assertRaises(ValueError):
physics.calculate_buoyancy(-1, -1)
def test_will_it_float(self):
self.assertEqual(physics.will_it_float(50, 50), True)
self.assertEqual(physics.will_it_float(3, 10000), False)
self.assertNotEqual(physics.will_it_float(6, 10000), True)
with self.assertRaises(ValueError):
physics.will_it_float(-1, -1)
def test_calculate_pressure(self):
self.assertEqual(physics.calculate_pressure(10), 199425)
self.assertEqual(physics.calculate_pressure(35), 444675)
self.assertNotEqual(physics.calculate_pressure(72), 706319)
with self.assertRaises(ValueError):
physics.calculate_pressure(-1)
def test_calculate_acceleration(self):
self.assertEqual(physics.calculate_acceleration(100, 10), 10)
self.assertNotEqual(physics.calculate_acceleration(150, 30), 6)
with self.assertRaises(ValueError):
physics.calculate_acceleration(50, -3)
def test_calculate_angular_acceleration(self):
self.assertEqual(physics.calculate_angular_acceleration(50, 25), 2)
self.assertNotEqual(physics.calculate_angular_acceleration(60, 30), 3)
with self.assertRaises(ValueError):
physics.calculate_angular_acceleration(30, -3)
def test_calculate_torque(self):
self.assertEqual(round(physics.calculate_torque(30, 45, 5), 3), 106.066)
self.assertNotEqual(physics.calculate_torque(60, 30, 4), 100)
with self.assertRaises(ValueError):
physics.calculate_torque(-50, -3, 3)
def test_calculate_moment_of_inertia(self):
self.assertEqual(physics.calculate_moment_of_inertia(4, 4), 64)
self.assertNotEqual(physics.calculate_moment_of_inertia(6, 4), 200)
with self.assertRaises(ValueError):
physics.calculate_moment_of_inertia(-30, -3)
def test_calculate_auv_acceleration(self):
self.assertAlmostEqual(
physics.calculate_auv_acceleration(30, 5)[0] * 100, 29.8858409427
)
self.assertAlmostEqual(
physics.calculate_auv_acceleration(30, 5)[1] * 100, 2.614672282429
)
self.assertNotAlmostEqual(
physics.calculate_auv_acceleration(40, 8)[0] * 100, 35
)
self.assertNotAlmostEqual(
physics.calculate_auv_acceleration(40, 8)[0] * 100, 39
)
with self.assertRaises(ValueError):
physics.calculate_auv_acceleration(-30, -3)
def test_calculate_auv_angular_acceleration(self):
self.assertEqual(round(physics.calculate_auv_angular_acceleration(60, 30)), 15)
self.assertNotEqual(physics.calculate_auv_angular_acceleration(70, 3), 11)
with self.assertRaises(ValueError):
physics.calculate_auv_angular_acceleration(-30, -3)
def test_calculate_auv2_acceleration(self):
self.assertTrue(
np.allclose(
physics.calculate_auv2_acceleration(
[2, 4, 8, 6], np.pi / 4, np.pi / 6, 1
),
[np.sqrt(2) - 2 * np.sqrt(6), -2 * np.sqrt(2) - np.sqrt(6)],
)
)
self.assertFalse(
np.allclose(
physics.calculate_auv2_acceleration(
[2, 4, 5, 3], np.pi / 6, np.pi / 4, 1
),
[np.sqrt(5) - 3 * np.sqrt(8), -2 * np.sqrt(3) - np.sqrt(7)],
)
)
with self.assertRaises(ValueError):
physics.calculate_auv2_acceleration([2, 3, 4, 5, 6], 2, 3, -3)
def test_calculate_auv2_angular_acceleration(self):
self.assertAlmostEqual(
physics.calculate_auv2_angular_acceleration([1, 3, 1, 3], np.pi / 4, 3, 2),
-0.14142135623,
)
self.assertNotAlmostEqual(
physics.calculate_auv2_angular_acceleration([4, 3, 1, 5], np.pi / 6, 1, 2),
np.sqrt(2) - np.sqrt(3) * 3,
)
with self.assertRaises(ValueError):
physics.calculate_auv2_angular_acceleration(
[3, 34, 34, 4, 3], 3, -3, -2, -5
)
def test_simulate_auv2_motion(self):
tup = physics.simulate_auv2_motion(
[40, 80, 120, 160], np.pi / 3, 3, 2, 100, 100, 0.1, 0.4
)
self.assertTrue(
np.allclose(
np.array(tup[0]),
[0.0, 0.1, 0.2, 0.3],
)
)
self.assertTrue(
np.allclose(
np.array(tup[1]),
[0.0, -0.00799669, -0.02396356, -0.04781142],
)
)
self.assertTrue(
np.allclose(np.array(tup[2]), [0.0, 0.00023025, 0.00115046, 0.00344548])
)
self.assertTrue(
np.allclose(np.array(tup[3]), [0.0, -0.02878461, -0.08635383, -0.17270766])
)
self.assertTrue(
np.allclose(
np.array(tup[4]),
[
[0.0, 0.0],
[-0.07996686, 0.00230245],
[-0.15966877, 0.00920217],
[-0.23847861, 0.0229502],
],
),
)
self.assertTrue(
np.allclose(np.array(tup[5]), [0.0, -0.2878461, -0.57569219, -0.86353829])
)
self.assertTrue(
np.allclose(
np.array(tup[6]),
[
[-0.8000000000000003, 0.0],
[-0.7996686, 0.02302451],
[-0.79701906, 0.06899724],
[-0.78809845, 0.13748028],
],
)
)
with self.assertRaises(ValueError):
physics.simulate_auv2_motion([3, 4, 5, 6, 5], 3, -3, -3)
if __name__ == "__main__":
unittest.main()