def test_term_to_string():
c = CFG()
nonterm = c.new_nonterm("zxcv")
nonterm1 = c.new_nonterm("zxcvs")
assert (c.term_to_string(EPS) == "eps")
assert (c.term_to_string("asdf") == "asdf")
assert (c.term_to_string(nonterm) == "T0")
c.symb["T0"] = ""
assert (c.term_to_string(nonterm1) == "T1")
def test_new_rule():
c = CFG()
rule = c.new_rule(c.new_nonterm("adsf"), "asdf")
assert (rule.__name__ == "adsf")
assert (rule.__qualname__ == "CFG.new_rule.<locals>.MyRule")
assert (rule.rule[0][0].__name__ == "adsf")
assert (rule.rule[0][0].__qualname__ == "CFG.new_nonterm.<locals>.Nonterm")
assert (rule.rule[1] == "asdf")
def test_new_nonterm():
c = CFG()
assert (c.new_nonterm("asdf").__name__ == "asdf")
assert (c.new_nonterm("adsf").__qualname__
==
"CFG.new_nonterm.<locals>.Nonterm")
