def test_expansion(self):
"""
test expansions of our grammar
"""
self.test_gram.add_nonterminal(self.nonterminal)
a_prod = parse_rule("[[b]], this is a test of expansion")
self.test_gram.add_rule(self.nonterminal, a_prod)
self.test_gram.add_nonterminal(a_prod[0])
b_prod = parse_rule("Wow")
self.test_gram.add_rule(a_prod[0], b_prod)
test_string = "Wow, this is a test of expansion"
test_deriv = IntermediateDeriv(
set(), TerminalSymbol("Wow, this is a test of expansion"))
self.assertEqual(self.test_gram.expand(NonterminalSymbol('a')),
test_deriv)
def test_different_derivations(self):
"""
Rules with identical symbols but different derivations should not eq
"""
c_derivation = parse_rule("[[haha]] we're testing it again")
c_nonterminal = self.a_nonterminal
c_rule = Rule(c_nonterminal, c_derivation)
self.assertNotEqual(c_rule, self.a_rule)
def setUp(self):
self.a_derivation = parse_rule("[[Test]] of [rule] {parsing}")
self.a_nonterminal = NonterminalSymbol('A')
self.a_rule = Rule(self.a_nonterminal,
self.a_derivation,
application_rate=1)
self.b_rule = Rule(self.a_nonterminal,
self.a_derivation,
application_rate=1)
def test_returns_system_vars(self):
"""
test that our function correctly returns the list of system variables
defined by the user within the program
"""
self.test_gram.add_nonterminal(self.nonterminal)
system_var_prod = parse_rule(
"[[affimative]], [name], [[I think]] his hair is[hair_color]")
self.test_gram.add_rule(self.nonterminal, system_var_prod)
self.assertEqual(2, len(self.test_gram.system_vars))
system_var_prod_2 = parse_rule("Ah yes, [player_name]")
self.test_gram.add_rule(system_var_prod[0], system_var_prod_2)
self.assertEqual(3, len(self.test_gram.system_vars))
test_system_vars = []
test_system_vars.append(SystemVar("name"))
test_system_vars.append(SystemVar("hair_color"))
test_system_vars.append(SystemVar("player_name"))
self.assertEqual(test_system_vars, self.test_gram.system_vars)
def test_recursive_nt_addition(self):
"""
add_rule should add all nonterminals present in derivation
that are not in the grammar to the grammar
"""
self.test_gram.add_nonterminal(self.nonterminal)
a_prod = parse_rule("[[b]], this is a test of expansion")
self.test_gram.add_rule(self.nonterminal, a_prod)
self.assertEqual(2, len(self.test_gram.nonterminals))
def test_empty_expansion(self):
"""
test that expansions of nonterminals with no productions works correctly
"""
self.test_gram.add_nonterminal(self.nonterminal)
a_prod = parse_rule("[[b]], this is a test of expansion")
self.test_gram.add_rule(self.nonterminal, a_prod)
self.test_gram.add_nonterminal(a_prod[0])
test_string = IntermediateDeriv(set(),
"[[b]], this is a test of expansion")
self.assertEqual(self.test_gram.expand(NonterminalSymbol('a')),
test_string)
def edit_rule():
data = request.get_json()
original_rule_head_name = data['original rule head name']
original_rule_index = int(data['rule id'])
rule_head_name = data['rule head name']
rule_body = data['rule body']
application_rate = int(data['application rate'])
preconditions_str = data['preconditions']
effects_str = data['effects']
if rule_head_name == original_rule_head_name:
# Simply update the application rate and expansion
app.grammar.modify_application_rate(
rule_head=nonterminal_symbol.NonterminalSymbol(rule_head_name),
rule_index=original_rule_index,
application_rate=application_rate)
app.grammar.modify_rule_expansion(
rule_head=nonterminal_symbol.NonterminalSymbol(rule_head_name),
rule_index=original_rule_index,
derivation=grammar.parse_rule(rule_body),
application_rate=application_rate),
app.grammar.modify_rule_preconditions_and_effects(
rule_head=nonterminal_symbol.NonterminalSymbol(rule_head_name),
rule_index=original_rule_index,
new_preconditions_str=preconditions_str,
new_effects_str=effects_str)
else:
# Delete the old rule and create a new one that is associated with the new rule head
app.grammar.remove_rule_by_index(
nonterminal_symbol.NonterminalSymbol(original_rule_head_name),
original_rule_index)
try:
new_rule_head_object = app.grammar.nonterminals[rule_head_name]
except KeyError:
new_rule_head_object = nonterminal_symbol.NonterminalSymbol(
rule_head_name)
app.grammar.add_nonterminal(new_rule_head_object)
app.grammar.add_rule(new_rule_head_object,
grammar.parse_rule(rule_body), application_rate)
return app.grammar.to_json()
def test_modify_app_rate(self):
"""
test that application rates are correctly modified
"""
self.test_gram.add_nonterminal(self.nonterminal)
a_prob = parse_rule("test of application_rate")
self.test_gram.add_rule(self.nonterminal, a_prob)
old_app = self.test_gram.nonterminals.get(str(
self.nonterminal.tag)).rules[0].application_rate
self.test_gram.modify_application_rate(self.nonterminal, 0, 5)
new_app = self.test_gram.nonterminals.get(str(
self.nonterminal.tag)).rules[0].application_rate
self.assertNotEqual(old_app, new_app)
self.assertEqual(new_app, 5)
def add_rule():
data = request.get_json()
rule_head_name = data['rule head name']
rule_body = data['rule body']
application_rate = int(data['application rate'])
preconditions_str = data['preconditions']
effects_str = data['effects']
try:
# Retrieve the nonterminal symbol named in the rule head
rule_head_object = app.grammar.nonterminals[rule_head_name]
except KeyError:
# No such nonterminal symbol exists yet, so create one
rule_head_object = nonterminal_symbol.NonterminalSymbol(rule_head_name)
app.grammar.add_nonterminal(rule_head_object)
app.grammar.add_rule(rule_head=rule_head_object,
rule_body=grammar.parse_rule(rule_body),
application_rate=application_rate,
preconditions_str=preconditions_str,
effects_str=effects_str)
return app.grammar.to_json()
from tags import Markup, MarkupSet
from nonterminal_symbol import NonterminalSymbol
from grammar import parse_rule, PCFG
test = PCFG()
ask_day = NonterminalSymbol('ask_day', deep=True)
test.add_nonterminal(ask_day)
ask_day_prod1 = parse_rule("[[greetings]] [[pleasantry]] [[ask]]")
ask_day_prod2 = parse_rule("[[greetings]] [[rude]] [[ask]]")
test.add_rule(ask_day, ask_day_prod1, 10)
test.add_rule(ask_day, ask_day_prod2, 3)
pleasantry_prod1 = parse_rule(
"This [weather] weather is sure crazy, isn't it?")
pleasantry_prod2 = parse_rule(
"Did you see the [speaker.sportsTeam] game, it was crazy!")
pleasantry_prod3 = parse_rule(
"Can you believe what happened on the [news.channel] last night?!")
rude_prod1 = parse_rule("As ugly as ever, I see!")
rude_prod2 = parse_rule(
"Time has been as unkind to you as it has to [world.celebrity]!")
rude_prod3 = parse_rule("You remain as despicable as ever, it would seem.")
greetings_prod1 = parse_rule("Hey, long time no see, [subject.name].")
greetings_prod2 = parse_rule("Is that you, [subject.name]?")
greetings_prod3 = parse_rule("I haven't seen you in forever, [subject.name]!")
def test_different_rules_not_eq(self):
"""Nonterminals with the same tag but different rules should not equal eachother"""
a_rule = parse_rule("[[Test of]] rule parsing")
self.a_nonterminal.add_rule(a_rule)
self.assertEqual(self.a_nonterminal.tag, self.b_nonterminal.tag)
self.assertNotEqual(self.a_nonterminal, self.b_nonterminal)
