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Adapt test_polynom for explain still bug with eval_poly

This commit is contained in:
Lafrite 2015-02-28 22:52:28 +01:00
parent 9370e8c48b
commit 79033c74ce
1 changed files with 41 additions and 33 deletions
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74
test/test_polynom.py
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@ -33,19 +33,20 @@ class TestPolynom(unittest.TestCase):
def test_eval_base(self):
p = Polynom([1, 2])
self.assertEqual(p(3).simplified(), 7)
self.assertEqual(p(3).simplify(), 7)
def test_eval_const(self):
p = Polynom([1])
self.assertEqual(p(3).simplified(), 1)
self.assertEqual(p(3).simplify(), 1)
def test_eval_const_neg(self):
p = Polynom([-1])
self.assertEqual(p(3).simplified(), -1)
self.assertEqual(p(3).simplify(), -1)
def test_eval_poly(self):
p = Polynom([1, 2])
self.assertEqual(p("1+h").simplified(), Polynom([3,2], "h"))
hp1 = Expression("h+1")
self.assertEqual(p(hp1).simplify(), Polynom([3,2], "h"))
#def test_print(self):
# p = Polynom([1,2,3])
@ -71,97 +72,104 @@ class TestPolynom(unittest.TestCase):
p = Polynom([1,2,3])
#ans = [1, 2, "x", "*", "+", 3, "x", 2, "^", "*", "+"]
ans = [3, 'x', 2, '^', '*', 2, 'x', '*', '+', 1, '+']
self.assertEqual(ans, p.postfix)
self.assertEqual(ans, p.postfix_tokens)
def test_postfix_monom(self):
p = Polynom([0,2])
ans = [2, "x", "*"]
self.assertEqual(ans, p.postfix)
self.assertEqual(ans, p.postfix_tokens)
def test_postfix_0_coef(self):
p = Polynom([0,2,0,4])
#ans = [2, "x", "*", 4, "x", 3, "^", "*", "+"]
ans = [4, 'x', 3, '^', '*', 2, 'x', '*', '+']
self.assertEqual(ans, p.postfix)
self.assertEqual(ans, p.postfix_tokens)
def test_postfix_1_coef(self):
p = Polynom([0,1,1])
#ans = ["x", "x", 2, "^", "+"]
ans = ["x", 2, "^", "x", "+"]
self.assertEqual(ans, p.postfix)
self.assertEqual(ans, p.postfix_tokens)
def test_postfix_neg_coef(self):
# TODO: Choix arbitraire (vis à vis des + et des -) il faudra faire en fonction de render |sam. juin 14 09:45:55 CEST 2014
p = Polynom([-1,-2,-3])
#ans = [-1, -2, "x", "*", "+", -3, "x", 2, "^", "*", "+"]
ans = [3, 'x', 2, '^', '*', '-', 2, 'x', '*', '-', 1, '-']
self.assertEqual(ans, p.postfix)
self.assertEqual(ans, p.postfix_tokens)
def test_postfix_multi_coef(self):
p = Polynom([1,[2, 3],4])
#ans = [1, 2, "x", "*", "+", 3, "x", "*", "+", 4, "x", 2, "^", "*", "+"]
ans = [4, 'x', 2, '^', '*', 2, 'x', '*', '+', 3, 'x', '*', '+', 1, '+']
self.assertEqual(ans, p.postfix)
self.assertEqual(ans, p.postfix_tokens)
def test_postfix_arithm_coef(self):
p = Polynom([1,Expression([2, 3, "+"]),4])
#ans = [1, 2, 3, "+", "x", "*", "+", 4, "x", 2, "^", "*", "+"]
ans = [4, 'x', 2, '^', '*', 2, 3, '+', 'x', '*', '+', 1, '+']
self.assertEqual(ans, p.postfix)
self.assertEqual(ans, p.postfix_tokens)
#def test_reduce_nilpo(self):
# p = Polynom([1, 2, 3])
# self.assertEqual(p, p.reduce()[-1])
def test_reduce_nilpo(self):
p = Polynom([1, 2, 3])
self.assertEqual(p, p.reduce())
def test_reduce(self):
p = Polynom([1, [2, 3], 4])
self.assertEqual(str(p.reduce()[-1]),'4 x ^ 2 + 5 x + 1')
ans = '4 x^{ 2 } + 5 x + 1'
self.assertEqual(str(p.reduce()), ans)
def test_add_int(self):
p = Polynom([1, 2, 3])
q = (p + 2)[-1]
self.assertEqual(str(q), '3 x ^ 2 + 2 x + 3')
q = p + 2
ans = '3 x^{ 2 } + 2 x + 3'
self.assertEqual(str(q), ans)
def test_add_frac(self):
p = Polynom([1, 2, 3])
f = Fraction(1, 2)
q = (p + f)[-1]
#ans = repr(Polynom([Expression(Fraction(3, 2)), Expression(2), Expression(3)]))
self.assertEqual(str(q),'3 x ^ 2 + 2 x + 3 / 2')
q = p + f
ans = '3 x^{ 2 } + 2 x + \\frac{ 3 }{ 2 }'
self.assertEqual(str(q),ans)
def test_add_poly(self):
p = Polynom([1, 0, 3])
q = Polynom([0, 2, 3])
r = (p + q)[-1]
self.assertEqual(str(r), '6 x ^ 2 + 2 x + 1')
r = p + q
ans = '6 x^{ 2 } + 2 x + 1'
self.assertEqual(str(r), ans)
def test_sub_int(self):
p = Polynom([1, 2, 3])
q = (p - 2)[-1]
self.assertEqual(str(q), '3 x ^ 2 + 2 x - 1')
q = p - 2
ans = '3 x^{ 2 } + 2 x - 1'
self.assertEqual(str(q),ans )
def test_sub_frac(self):
p = Polynom([1, 2, 3])
f = Fraction(1, 2)
q = (p - f)[-1]
#ans = repr(Polynom([Expression(Fraction(3, 2)), Expression(2), Expression(3)]))
self.assertEqual(str(q),'3 x ^ 2 + 2 x + 1 / 2')
q = p - f
ans = '3 x^{ 2 } + 2 x + \\frac{ 1 }{ 2 }'
self.assertEqual(str(q), ans)
def test_sub_poly(self):
p = Polynom([1, 0, 2])
q = Polynom([0, 2, 3])
r = (p - q)[-1]
self.assertEqual(str(r), '- x ^ 2 - 2 x + 1')
r = p - q
ans = '- x^{ 2 } - 2 x + 1'
self.assertEqual(str(r), ans)
def test_pow_monome(self):
p = Polynom([0,-2])
r = (p**3)[-1]
self.assertEqual(str(r), '- 8 x ^ 3')
r = p**3
ans = '- 8 x^{ 3 }'
self.assertEqual(str(r), ans)
def test_pow2_monome(self):
p = Polynom([0,-2])
r = (p^3)[-1]
self.assertEqual(str(r), '- 8 x ^ 3')
r = p^3
ans = '- 8 x^{ 3 }'
self.assertEqual(str(r), ans)