test on str2tokens with poly
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@ -43,6 +43,22 @@ class TestStr2tokens(unittest.TestCase):
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tok = str2in_tokens(exp)
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self.assertEqual(tok, ["(", -3, ")", "*","(", 2, ")" ])
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def test_str2tokens_poly(self):
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exp = "2x + 4"
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post = str2in_tokens(exp)
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self.assertEqual(post, [2, < Polynom [0, 1]>, '*', 4, '+'])
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def test_str2tokens_poly_double_x(self):
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exp = "xx + 4"
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post = str2in_tokens(exp)
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self.assertEqual(post, [< Polynom [0, 1]>, < Polynom [0, 1]>, '*', 4, '+'])
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def test_str2tokens_poly(self):
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exp = "x(2+1) + 4"
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post = str2in_tokens(exp)
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self.assertEqual(post, [< Polynom [0, 1]>, 2, 1, '+', '*', 4, '+'])
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def test_str2in_tokens_time_lack2(self):
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exp = "-3(2)"
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tok = str2in_tokens(exp)
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