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test(math): add unit tests for quadratic equation edge cases #13

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hrosicka merged 1 commit into from
May 31, 2026
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test(math): add unit tests for quadratic equation edge cases #13

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22 changes: 22 additions & 0 deletions Tests/test_quadratic_equation.py
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Original file line number Diff line number Diff line change
Expand Up @@ -43,5 +43,27 @@ def test_discriminant(self):
qua_eq4 = QuadraticEquation(-1, -14, 20)
self.assertEqual(qua_eq4.discriminant(), 276)

def test_one_real_root(self):
qe = QuadraticEquation(1, 2, 1)
qe.solve()
self.assertEqual(qe.x1, qe.x2) # Oba kořeny jsou stejné

def test_two_real_roots(self):
qe = QuadraticEquation(1, -5, 6)
qe.solve()
self.assertAlmostEqual(qe.x1, 3.0, places=3)
self.assertAlmostEqual(qe.x2, 2.0, places=3)

def test_complex_roots(self):
qe = QuadraticEquation(1, 2, 5)
qe.solve()
self.assertEqual(qe.x1.imag > 0, True) # Má imaginární část

def test_vertex_calculation(self):
qe = QuadraticEquation(1, -4, 4)
qe.solve()
self.assertAlmostEqual(qe.vertex_x, 2.0, places=3)
self.assertAlmostEqual(qe.vertex_y, 0.0, places=3)

if __name__ == "__main__":
unittest.main()
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