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import unittest
import motorlib.geometry
class TestGeometryMethods(unittest.TestCase):
def test_circleArea(self):
self.assertAlmostEqual(motorlib.geometry.circleArea(0.5), 0.19634954)
def test_circlePerimeter(self):
self.assertAlmostEqual(motorlib.geometry.circlePerimeter(0.5), 1.57079633)
def test_circleDiameterFromArea(self):
self.assertAlmostEqual(motorlib.geometry.circleDiameterFromArea(0.19634954), 0.5)
def test_tubeArea(self):
self.assertAlmostEqual(motorlib.geometry.tubeArea(0.5, 2), 3.14159265)
def test_cylinderArea(self):
self.assertAlmostEqual(motorlib.geometry.cylinderArea(0.5, 2), 3.53429174)
def test_cylinderVolume(self):
self.assertAlmostEqual(motorlib.geometry.cylinderVolume(0.5, 2), 0.39269908)
def test_frustumLateralSurfaceArea(self):
self.assertAlmostEqual(motorlib.geometry.frustumLateralSurfaceArea(2, 3, 5), 39.46576927)
def test_frustumVolume(self):
# Cone case
self.assertAlmostEqual(motorlib.geometry.frustumVolume(0, 10, 10), 261.79938779)
# Frustum case
self.assertAlmostEqual(motorlib.geometry.frustumVolume(10, 30, 50), 17016.96020694)
def test_splitFrustum(self):
# Simple case
self.assertAlmostEqual(motorlib.geometry.splitFrustum(1, 2, 4, 2), ((1, 1.5, 2), (1.5, 2, 2)))
# Inverted case
self.assertAlmostEqual(motorlib.geometry.splitFrustum(2, 1, 4, 2), ((2, 1.5, 2), (1.5, 1, 2)))
# Make sure that the connected ends of the frustums line up
upper, lower = motorlib.geometry.splitFrustum(1, 3, 3, 1)
self.assertEqual(upper[1], lower[0])
def test_dist(self):
self.assertEqual(motorlib.geometry.dist((5, 5), (5, 5)), 0)
self.assertEqual(motorlib.geometry.dist((5, 5), (6, 5)), 1)
self.assertEqual(motorlib.geometry.dist((5, 5), (5, 6)), 1)
self.assertEqual(motorlib.geometry.dist((0, 0), (-1, -1)), 2 ** 0.5)
if __name__ == '__main__':
unittest.main()
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