def notest_ast():
lrp = LRParser(grammar)
lrp.check("1 + 2 * 3")
ast = lrp.get_ast()
AST(
Node(E, [
Node(E, [Node(T, [Node(P, [n1])])]),
Node(plus, []),
Node(T, [
Node(T, [Node(P, [n2])]),
Node(mul, []),
Node(P, [n3])
])
])
) == ast
lrp.check("1 + 2 * 1")
ast2 = lrp.get_ast()
