def test_parse(self):
data = [
(('A',), ('A',)),
(('A', '+', 'B', '*', 'C'), ('A', 'B', 'C', '*', '+')),
(('A', '/', 'B', '*', 'C'), ('A', 'B', '/', 'C', '*')),
(('A', '*', 'B', '+', 'C'), ('A', 'B', '*', 'C', '+')),
(('A', '*', '(', 'B', '+', 'C', ')'), ('A', 'B', 'C', '+', '*')),
(('(', 'A', '-', 'B', ')', '+', 'C'), ('A', 'B', '-', 'C', '+')),
(('10', '/', '(', '1.0', '-', '0.5', ')'), ('10', '1.0', '0.5', '-', '/'))
]
for tokens, result in data:
self.assertEqual(Formula.parse(tokens), result)
def test(self, formula, string, cases):
print("Testing %s" % (string))
parsed = Formula.parse(string)
self.compare(parsed.toString(), string, "Formula.parse(XXX).toString() == XXX")
# This expects subf() to work correctly, if it doesn't
# we still will catch the difference in toplevel formulas
# or evals below.
self.compareFormulas(parsed, formula)
for interpretation, result in cases:
print(" interpretation %s:" % (repr(interpretation),))
self.compare(parsed.eval(interpretation), result, "eval")
