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- import unittest
- from src.parser import Parser
- from src.node import ExpressionNode as N, ExpressionLeaf as L
- from tests.parser import run_expressions
- class TestB1Ch8(unittest.TestCase):
- def test_diagnostic_test(self):
- run_expressions(Parser, [
- ('6*5^2', N('*', L(6), N('^', L(5), L(2)))),
- ('-5*(-3)^2', N('*', N('-', L(5)),
- N('^', N('-', L(3)), L(2)))),
- ('-5*(-3)^2', N('*', N('-', L(5)),
- N('^', N('-', L(3)), L(2)))),
- ('7p-3p', N('-', N('*', L(7), L('p')), N('*', L(3), L('p')))),
- ('-5a*-6', N('*', N('*', N('-', L(5)), L('a')),
- N('-', L(6)))),
- ('3a-8--5-2a', N('-', N('-', N('-', N('*', L(3), L('a')), L(8)),
- N('-', L(5))), N('*', L(2), L('a')))),
- ])
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