def test_evaluate():
grammar = Grammar()
query = "(3d1 + 5) * 2"
expected = 16
total, rolls = grammar.evaluate(query)
print(total)
print(rolls)
assert total == expected
assert ((sum(int(roll) for roll in rolls) + 5) * 2) == expected
query = "3d1 + 2"
expected = 5
total, rolls = grammar.evaluate(query)
assert total == expected
assert (sum(int(roll) for roll in rolls) + 2) == expected
def test_evaluation(self):
"""
Evaluate the grammar on all examples, collecting metrics:
semantics oracle accuracy: # of examples where one parse or the other was
correct.
semantics accuracy: # of examples where parse at position 0 was correct.
"""
arithmetic_grammar = Grammar(self.arithmetic_rules)
from executor import Executor
examples = self.one_parse_examples + self.two_parse_examples
self.assertEqual(17, len(examples))
metrics = arithmetic_grammar.evaluate(executor=Executor.execute,
examples=examples,
print_examples=False)
# in every example we produced some correct parse.
self.assertEqual(metrics['semantics oracle accuracy'], 17)
# three examples where the parse at position 0 was not correct
self.assertEqual(metrics['semantics accuracy'], 14)