48 lines
1.1 KiB
Python
48 lines
1.1 KiB
Python
import unittest
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from fancymath.vector import Vector
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class TestVector(unittest.TestCase):
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def test_cross_product(self):
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# given
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v1 = Vector(1, 2, 3)
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v2 = Vector(3, 2, 1)
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# when
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v3 = v1 * v2
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# then
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self.assertIsInstance(v3, Vector)
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self.assertEqual(v3.x, -4)
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self.assertEqual(v3.y, 8)
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self.assertEqual(v3.z, -4)
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def test_cross_product_failure(self):
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v1 = Vector(1, 2, 3)
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v2 = (3, 2, 1)
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with self.assertRaises(TypeError):
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v1 * v2
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def test_add_vector(self):
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v1 = Vector(1, 2, 3)
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v2 = Vector(-3, -2, -1)
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v3 = v1 + v2
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self.assertIsInstance(v3, Vector)
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self.assertEqual(v3.x, v1.x + v2.x)
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def test_dot_failure(self):
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with self.assertRaises(ValueError):
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v1 = Vector(1, 2, 3)
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v1.dot(3)
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def test_dot_product(self):
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v1 = Vector(1, 2, 3)
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v2 = Vector(-3, -2, -1)
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v3 = v1.dot(v2)
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self.assertEqual(v3,v1.x * v2.x + v1.y * v2.y + v1.z * v2.z)
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vzero = Vector(0, 0, 0)
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self.assertEqual(v1.dot(vzero),0)
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