class TestEmbeddings (unittest.TestCase):
def setUp(self):
#
# db, store
#
db_url = 'sqlite:///foo.db'
# setup compiler + environment
self.db = LogicDB(db_url, echo=False)
self.parser = PrologParser(self.db)
self.rt = PrologRuntime(self.db)
# self.rt.set_trace(True)
self.db.clear_module(UNITTEST_MODULE)
def tearDown(self):
self.db.close()
#@unittest.skip("temporarily disabled")
def test_custom_builtins(self):
global recorded_moves
self.parser.compile_file('samples/hanoi2.pl', UNITTEST_MODULE)
clause = self.parser.parse_line_clause_body('move(3,left,right,center)')
logging.debug('clause: %s' % clause)
# register our custom builtin
recorded_moves = []
self.rt.register_builtin('record_move', record_move)
solutions = self.rt.search(clause)
logging.debug('solutions: %s' % repr(solutions))
self.assertEqual (len(solutions), 1)
self.assertEqual (len(recorded_moves), 7)
#@unittest.skip("temporarily disabled")
def test_custom_builtin_multiple_bindings(self):
self.rt.register_builtin('multi_binder', multi_binder)
clause = self.parser.parse_line_clause_body('multi_binder(X,Y)')
logging.debug('clause: %s' % clause)
solutions = self.rt.search(clause)
logging.debug('solutions: %s' % repr(solutions))
self.assertEqual (len(solutions), 4)
def _custom_directive(self, db, module_name, clause, user_data):
# logging.debug('custom_directive has been run')
self.assertEqual (len(clause.head.args), 3)
self.assertEqual (unicode(clause.head.args[0]), u'abc')
self.assertEqual (clause.head.args[1].f, 42)
self.assertEqual (clause.head.args[2].s, u'foo')
self.directive_mark = True
#@unittest.skip("temporarily disabled")
def test_custom_directives(self):
self.parser.register_directive('custom_directive', self._custom_directive, None)
self.directive_mark = False
# self.parser.compile_file('samples/dir.pl', UNITTEST_MODULE)
clauses = self.parser.parse_line_clauses('custom_directive(abc, 42, \'foo\').')
self.assertEqual (self.directive_mark, True)
class TestBuiltins(unittest.TestCase):
def setUp(self):
#
# db, store
#
db_url = 'sqlite:///foo.db'
# setup compiler + environment
self.db = LogicDB(db_url)
self.parser = PrologParser(self.db)
self.rt = PrologRuntime(self.db)
self.db.clear_module(UNITTEST_MODULE)
def tearDown(self):
self.db.close()
# @unittest.skip("temporarily disabled")
def test_hanoi1(self):
self.parser.compile_file('samples/hanoi1.pl', UNITTEST_MODULE)
clause = self.parser.parse_line_clause_body(
'move(3,left,right,center)')
logging.debug('clause: %s' % clause)
solutions = self.rt.search(clause)
logging.debug('solutions: %s' % repr(solutions))
self.assertEqual(len(solutions), 1)
# @unittest.skip("temporarily disabled")
def test_lists(self):
clause = self.parser.parse_line_clause_body('X is []')
solutions = self.rt.search(clause)
self.assertEqual(len(solutions[0]['X'].l), 0)
clause = self.parser.parse_line_clause_body(
'L is [1,2,3,4], X is list_sum(L), Y is list_max(L), Z is list_min(L), W is list_avg(L), V is list_len(L)'
)
solutions = self.rt.search(clause)
self.assertEqual(len(solutions[0]['L'].l), 4)
self.assertEqual(solutions[0]['L'].l[3].f, 4.0)
self.assertEqual(solutions[0]['X'].f, 10.0)
self.assertEqual(solutions[0]['Y'].f, 4.0)
self.assertEqual(solutions[0]['Z'].f, 1.0)
self.assertEqual(solutions[0]['W'].f, 2.5)
self.assertEqual(solutions[0]['V'].f, 4.0)
clause = self.parser.parse_line_clause_body(
'L is [1,2,3,4], list_contains(L, 2).')
solutions = self.rt.search(clause)
self.assertEqual(len(solutions), 1)
clause = self.parser.parse_line_clause_body(
'L is [1,2,3,4], list_contains(L, 23).')
solutions = self.rt.search(clause)
self.assertEqual(len(solutions), 0)
clause = self.parser.parse_line_clause_body(
'X is [1,2,3,4], list_nth(1, X, E).')
solutions = self.rt.search(clause)
self.assertEqual(solutions[0]['E'].f, 2)
clause = self.parser.parse_line_clause_body(
'X is [1,2,3,4], length(X, L).')
solutions = self.rt.search(clause)
self.assertEqual(solutions[0]['L'].f, 4)
clause = self.parser.parse_line_clause_body(
'X is [1,2,3,4], list_slice(1, 3, X, E).')
solutions = self.rt.search(clause)
self.assertEqual(len(solutions[0]['E'].l), 2)
self.assertEqual(solutions[0]['E'].l[0].f, 2.0)
self.assertEqual(solutions[0]['E'].l[1].f, 3.0)
clause = self.parser.parse_line_clause_body(
'X is [1,2,3,4], E is list_slice(1, 3, X).')
solutions = self.rt.search(clause)
self.assertEqual(len(solutions[0]['E'].l), 2)
self.assertEqual(solutions[0]['E'].l[0].f, 2.0)
self.assertEqual(solutions[0]['E'].l[1].f, 3.0)
clause = self.parser.parse_line_clause_body(
'X is [1,2,3,4], list_append(X, 5).')
solutions = self.rt.search(clause)
self.assertEqual(len(solutions[0]['X'].l), 5)
self.assertEqual(solutions[0]['X'].l[4].f, 5.0)
clause = self.parser.parse_line_clause_body(
'X is ["1","2","3","4"], list_str_join("@", X, Y).')
solutions = self.rt.search(clause)
self.assertEqual(solutions[0]['Y'].s, "1@2@3@4")
clause = self.parser.parse_line_clause_body(
'X is ["1","2","3","4"], Y is list_join("@", X).')
solutions = self.rt.search(clause)
self.assertEqual(solutions[0]['Y'].s, "1@2@3@4")
# @unittest.skip("temporarily disabled")
def test_list_findall(self):
self.parser.compile_file('samples/kb1.pl', UNITTEST_MODULE)
clause = self.parser.parse_line_clause_body(
'list_findall(X, woman(X), L)')
solutions = self.rt.search(clause)
self.assertEqual(len(solutions[0]), 1)
self.assertEqual(len(solutions[0]['L'].l), 3)
# @unittest.skip("temporarily disabled")
def test_strings(self):
clause = self.parser.parse_line_clause_body(
'X is \'bar\', S is format_str(\'test %d %s foo\', 42, X)')
solutions = self.rt.search(clause)
self.assertEqual(solutions[0]['S'].s, 'test 42 bar foo')
clause = self.parser.parse_line_clause_body(
'X is \'foobar\', sub_string(X, 0, 2, _, Y)')
solutions = self.rt.search(clause)
self.assertEqual(solutions[0]['Y'].s, 'fo')
clause = self.parser.parse_line_clause_body(
'atom_chars(foo, X), atom_chars(Y, "bar").')
solutions = self.rt.search(clause)
self.assertEqual(solutions[0]['X'].s, 'foo')
self.assertEqual(solutions[0]['Y'].name, 'bar')
# @unittest.skip("temporarily disabled")
def test_date_time(self):
clause = self.parser.parse_line_clause_body('get_time(T)')
solutions = self.rt.search(clause)
self.assertGreater(solutions[0]['T'].s, '2017-04-30T23:39:29.092271')
clause = self.parser.parse_line_clause_body(
'date_time_stamp(date(2017,2,14,1,2,3,\'local\'), TS), stamp_date_time(TS, date(Y,M,D,H,Mn,S,\'local\'))'
)
solutions = self.rt.search(clause)
self.assertEqual(solutions[0]['Y'].f, 2017)
self.assertEqual(solutions[0]['M'].f, 2)
self.assertEqual(solutions[0]['D'].f, 14)
self.assertEqual(solutions[0]['H'].f, 1)
self.assertEqual(solutions[0]['Mn'].f, 2)
self.assertEqual(solutions[0]['S'].f, 3)
clause = self.parser.parse_line_clause_body(
'date_time_stamp(date(2017,2,14,1,2,3,\'Europe/Berlin\'), TS), day_of_the_week(TS, WD)'
)
solutions = self.rt.search(clause)
self.assertEqual(solutions[0]['TS'].s, '2017-02-14T01:02:03+01:00')
self.assertEqual(solutions[0]['WD'].f, 2)
# @unittest.skip("temporarily disabled")
def test_arith(self):
clause = self.parser.parse_line_clause_body('X is -23')
solutions = self.rt.search(clause)
self.assertEqual(solutions[0]['X'].f, -23)
clause = self.parser.parse_line_clause_body('X is +42')
solutions = self.rt.search(clause)
self.assertEqual(solutions[0]['X'].f, 42)
clause = self.parser.parse_line_clause_body('X is 19 + 23')
solutions = self.rt.search(clause)
self.assertEqual(solutions[0]['X'].f, 42)
clause = self.parser.parse_line_clause_body('X is 61 - 19')
solutions = self.rt.search(clause)
self.assertEqual(solutions[0]['X'].f, 42)
clause = self.parser.parse_line_clause_body('X is 6*7')
solutions = self.rt.search(clause)
self.assertEqual(solutions[0]['X'].f, 42)
clause = self.parser.parse_line_clause_body('X is 1764 / 42')
solutions = self.rt.search(clause)
self.assertEqual(solutions[0]['X'].f, 42)
clause = self.parser.parse_line_clause_body('X is 85 mod 43')
solutions = self.rt.search(clause)
self.assertEqual(solutions[0]['X'].f, 42)
clause = self.parser.parse_line_clause_body(
'X is 23, increment(X, 19)')
solutions = self.rt.search(clause)
self.assertEqual(solutions[0]['X'].f, 42)
clause = self.parser.parse_line_clause_body(
'X is 42, decrement(X, 19)')
solutions = self.rt.search(clause)
self.assertEqual(solutions[0]['X'].f, 23)
# @unittest.skip("temporarily disabled")
def test_comp(self):
clause = self.parser.parse_line_clause_body('3>1')
solutions = self.rt.search(clause)
self.assertEqual(len(solutions), 1)
clause = self.parser.parse_line_clause_body('1>1')
solutions = self.rt.search(clause)
self.assertEqual(len(solutions), 0)
clause = self.parser.parse_line_clause_body('3<1')
solutions = self.rt.search(clause)
self.assertEqual(len(solutions), 0)
clause = self.parser.parse_line_clause_body('1<1')
solutions = self.rt.search(clause)
self.assertEqual(len(solutions), 0)
clause = self.parser.parse_line_clause_body('3=<1')
solutions = self.rt.search(clause)
self.assertEqual(len(solutions), 0)
clause = self.parser.parse_line_clause_body('1=<1')
solutions = self.rt.search(clause)
self.assertEqual(len(solutions), 1)
clause = self.parser.parse_line_clause_body('3>=1')
solutions = self.rt.search(clause)
self.assertEqual(len(solutions), 1)
clause = self.parser.parse_line_clause_body('1>=1')
solutions = self.rt.search(clause)
self.assertEqual(len(solutions), 1)
clause = self.parser.parse_line_clause_body('3\\=1')
solutions = self.rt.search(clause)
self.assertEqual(len(solutions), 1)
clause = self.parser.parse_line_clause_body('1\\=1')
solutions = self.rt.search(clause)
self.assertEqual(len(solutions), 0)
clause = self.parser.parse_line_clause_body('3=1')
solutions = self.rt.search(clause)
self.assertEqual(len(solutions), 0)
clause = self.parser.parse_line_clause_body('1=1')
solutions = self.rt.search(clause)
self.assertEqual(len(solutions), 1)
# @unittest.skip("temporarily disabled")
def test_between(self):
clause = self.parser.parse_line_clause_body('between(1,100,42)')
solutions = self.rt.search(clause)
self.assertEqual(len(solutions), 1)
clause = self.parser.parse_line_clause_body('between(1,100,X)')
solutions = self.rt.search(clause)
self.assertEqual(len(solutions), 100)
# @unittest.skip("temporarily disabled")
def test_dicts(self):
clause = self.parser.parse_line_clause_body(
'dict_put(U, foo, 42), X is U, dict_put(X, bar, 23), dict_get(X, Y, Z), dict_get(X, foo, V)'
)
solutions = self.rt.search(clause)
self.assertEqual(len(solutions[0]['U'].d), 1)
self.assertEqual(len(solutions[0]['X'].d), 2)
self.assertEqual(solutions[0]['Z'].f, 42)
self.assertEqual(solutions[0]['V'].f, 42)
self.assertEqual(solutions[1]['Z'].f, 23)
self.assertEqual(solutions[1]['V'].f, 42)
logging.debug(repr(solutions))
# @unittest.skip("temporarily disabled")
def test_assertz(self):
clause = self.parser.parse_line_clause_body(
'I is ias00001, assertz(frame (I, qIsFamiliar)), frame (ias00001, X)'
)
solutions = self.rt.search(clause)
logging.debug(repr(solutions))
self.assertEqual(len(solutions), 1)
self.assertEqual(solutions[0]['X'].name, 'qIsFamiliar')
# @unittest.skip("temporarily disabled")
def test_retract(self):
clause = self.parser.parse_line_clause_body(
'I is ias1, assertz(frame (I, a, x)), retract(frame (I, _, _)), assertz(frame (I, a, y)), frame(ias1, a, X)'
)
solutions = self.rt.search(clause)
logging.debug(repr(solutions))
self.assertEqual(len(solutions), 1)
self.assertEqual(solutions[0]['X'].name, 'y')
# @unittest.skip("temporarily disabled")
def test_retract_db(self):
clause = self.parser.parse_line_clause_body(
'I is ias1, assertz(frame (I, a, x))')
solutions = self.rt.search(clause)
self.assertEqual(len(solutions), 1)
clause = self.parser.parse_line_clause_body('frame(ias1, a, X)')
s2s = self.rt.search(clause)
self.assertEqual(len(s2s), 0)
self.rt.apply_overlay(UNITTEST_MODULE, solutions[0])
clause = self.parser.parse_line_clause_body('frame(ias1, a, X)')
s2s = self.rt.search(clause)
self.assertEqual(len(s2s), 1)
self.assertEqual(s2s[0]['X'].name, 'x')
clause = self.parser.parse_line_clause_body(
'retract(frame (ias1, _, _)), frame(ias1, a, X)')
s2s = self.rt.search(clause)
self.assertEqual(len(s2s), 0)
clause = self.parser.parse_line_clause_body(
'retract(frame (ias1, _, _))')
solutions = self.rt.search(clause)
self.rt.apply_overlay(UNITTEST_MODULE, solutions[0])
clause = self.parser.parse_line_clause_body('frame(ias1, a, X)')
s2s = self.rt.search(clause)
self.assertEqual(len(s2s), 0)
# @unittest.skip("temporarily disabled")
def test_setz(self):
clause = self.parser.parse_line_clause_body(
'assertz(frame (ias1, a, x)), assertz(frame (ias1, a, y)), setz(frame (ias1, a, _), z), frame (ias1, a, X)'
)
solutions = self.rt.search(clause)
logging.debug(repr(solutions))
self.assertEqual(len(solutions), 1)
self.assertEqual(solutions[0]['X'].name, 'z')
# @unittest.skip("temporarily disabled")
def test_setz_multi(self):
# self.rt.set_trace(True)
clause = self.parser.parse_line_clause_body(
'I is ias2, setz(ias (I, a, _), a), setz(ias (I, b, _), b), setz(ias (I, c, _), c), ias(I, X, Y). '
)
solutions = self.rt.search(clause)
logging.debug(repr(solutions))
self.assertEqual(len(solutions), 3)
self.assertEqual(solutions[0]['X'].name, 'a')
self.assertEqual(solutions[0]['Y'].name, 'a')
self.assertEqual(solutions[1]['X'].name, 'b')
self.assertEqual(solutions[1]['Y'].name, 'b')
self.assertEqual(solutions[2]['X'].name, 'c')
self.assertEqual(solutions[2]['Y'].name, 'c')
# @unittest.skip("temporarily disabled")
def test_gensym(self):
logging.debug('test_gensym...')
clause = self.parser.parse_line_clause_body(
'gensym(foo, I), gensym(foo, J)')
solutions = self.rt.search(clause)
logging.debug(repr(solutions))
self.assertEqual(len(solutions), 1)
self.assertNotEqual(solutions[0]['I'].name, solutions[0]['J'].name)
logging.debug('test_gensym... done.')
# @unittest.skip("temporarily disabled")
def test_sets(self):
clause = self.parser.parse_line_clause_body(
'set_add(S, 42), set_add(S, 23), set_add(S, 23), set_get(S, V)')
solutions = self.rt.search(clause)
self.assertEqual(len(solutions[0]), 2)
self.assertEqual(len(solutions[0]['S'].s), 2)
logging.debug(repr(solutions))
# @unittest.skip("temporarily disabled")
def test_set_findall(self):
self.parser.compile_file('samples/kb1.pl', UNITTEST_MODULE)
clause = self.parser.parse_line_clause_body(
'set_findall(X, woman(X), S)')
solutions = self.rt.search(clause)
self.assertEqual(len(solutions[0]), 1)
self.assertEqual(len(solutions[0]['S'].s), 3)
# @unittest.skip("temporarily disabled")
def test_eval_functions(self):
clause = self.parser.parse_line_clause_body(
'X is [23, 42], Y is [list_avg(X), list_sum(Z)]')
solutions = self.rt.search(clause)
logging.debug(repr(solutions))
self.assertEqual(len(solutions), 1)
self.assertEqual(len(solutions[0]['Y'].l), 2)
# @unittest.skip("temporarily disabled")
def test_set(self):
clause = self.parser.parse_line_clause_body(
'set(X, 23), set(X, 42), set(Y, 23), Z := Y * 2')
solutions = self.rt.search(clause)
logging.debug(repr(solutions))
self.assertEqual(len(solutions), 1)
self.assertEqual(solutions[0]['X'].f, 42)
self.assertEqual(solutions[0]['Y'].f, 23)
self.assertEqual(solutions[0]['Z'].f, 46)
# @unittest.skip("temporarily disabled")
def test_set_pseudo(self):
clause = self.parser.parse_line_clause_body(
'assertz(foo(bar, 23)), set(bar:foo, 42), foo(bar, X), Z := bar:foo'
)
# self.rt.set_trace(True)
solutions = self.rt.search(clause)
logging.debug(repr(solutions))
self.assertEqual(len(solutions), 1)
self.assertEqual(solutions[0]['X'].f, 42)
class TestZamiaProlog(unittest.TestCase):
def setUp(self):
#
# db, store
#
db_url = 'sqlite:///foo.db'
# setup compiler + environment
self.db = LogicDB(db_url)
self.parser = PrologParser(self.db)
self.rt = PrologRuntime(self.db)
self.db.clear_module(UNITTEST_MODULE)
def tearDown(self):
self.db.close()
# @unittest.skip("temporarily disabled")
def test_parser(self):
error_catched = False
try:
clause = self.parser.parse_line_clause_body(
'say_eoa(en, "Kids are the best')
logging.debug('clause: %s' % clause)
except PrologError as e:
error_catched = True
self.assertEqual(error_catched, True)
# @unittest.skip("temporarily disabled")
def test_parse_line_clauses(self):
line = 'time_span(TE) :- date_time_stamp(+(D, 1.0)).'
tree = self.parser.parse_line_clauses(line)
logging.debug(unicode(tree[0].body))
self.assertEqual(tree[0].body.name, 'date_time_stamp')
self.assertEqual(tree[0].head.name, 'time_span')
line = 'time_span(tomorrow, TS, TE) :- context(currentTime, T), stamp_date_time(T, date(Y, M, D, H, Mn, S, "local")), date_time_stamp(date(Y, M, +(D, 1.0), 0.0, 0.0, 0.0, "local"), TS), date_time_stamp(date(Y, M, +(D, 1.0), 23.0, 59.0, 59.0, "local"), TE).'
tree = self.parser.parse_line_clauses(line)
logging.debug(unicode(tree[0].body))
self.assertEqual(tree[0].head.name, 'time_span')
self.assertEqual(tree[0].body.name, 'and')
self.assertEqual(len(tree[0].body.args), 4)
# @unittest.skip("temporarily disabled")
def test_kb1(self):
self.assertEqual(len(self.db.lookup('party', 0)), 0)
self.parser.compile_file('samples/kb1.pl', UNITTEST_MODULE)
self.assertEqual(len(self.db.lookup('party', 0)), 1)
clause = self.parser.parse_line_clause_body('woman(X)')
logging.debug('clause: %s' % clause)
solutions = self.rt.search(clause)
logging.debug('solutions: %s' % repr(solutions))
self.assertEqual(len(solutions), 3)
clause = self.parser.parse_line_clause_body('party')
logging.debug('clause: %s' % clause)
solutions = self.rt.search(clause)
logging.debug('solutions: %s' % repr(solutions))
self.assertEqual(len(solutions), 1)
clause = self.parser.parse_line_clause_body('woman(fred)')
logging.debug('clause: %s' % clause)
solutions = self.rt.search(clause)
logging.debug('solutions: %s' % repr(solutions))
self.assertEqual(len(solutions), 0)
# @unittest.skip("temporarily disabled")
def test_parse_to_string(self):
line = u'time_span(c, X, Y) :- p1(c), p2(X, Y); p3(c); p4.'
line2 = u'time_span(c, X, Y) :- or(and(p1(c), p2(X, Y)), p3(c), p4).'
tree = self.parser.parse_line_clauses(line)
logging.debug(unicode(tree[0].body))
self.assertEqual(unicode(tree[0]), line2)
# @unittest.skip("temporarily disabled")
def test_or(self):
self.parser.compile_file('samples/or_test.pl', UNITTEST_MODULE)
# self.rt.set_trace(True)
solutions = self.rt.search_predicate('woman', ['X'])
logging.debug('solutions: %s' % repr(solutions))
self.assertEqual(len(solutions), 3)
solutions = self.rt.search_predicate('human', ['X'])
logging.debug('solutions: %s' % repr(solutions))
self.assertEqual(len(solutions), 8)
def test_or_toplevel(self):
self.parser.compile_file('samples/or_test.pl', UNITTEST_MODULE)
clause = self.parser.parse_line_clause_body(
u'woman(mary); woman(jody)')
logging.debug(u'clause: %s' % clause)
solutions = self.rt.search(clause)
logging.debug('solutions: %s' % repr(solutions))
self.assertEqual(len(solutions), 1)
def test_or_bindings(self):
clause = self.parser.parse_line_clause_body(
u'S is "a", or(str_append(S, "b"), str_append(S, "c"))')
logging.debug(u'clause: %s' % clause)
solutions = self.rt.search(clause)
logging.debug('solutions: %s' % repr(solutions))
self.assertEqual(len(solutions), 2)
self.assertEqual(solutions[0]['S'].s, "ab")
self.assertEqual(solutions[1]['S'].s, "ac")
clause = self.parser.parse_line_clause_body(u'X is 42; X is 23')
logging.debug(u'clause: %s' % clause)
solutions = self.rt.search(clause)
logging.debug('solutions: %s' % repr(solutions))
self.assertEqual(len(solutions), 2)
def test_var_access(self):
# set var X from python:
clause = self.parser.parse_line_clause_body('Y is X*X')
logging.debug('clause: %s' % clause)
solutions = self.rt.search(clause, {'X': NumberLiteral(3)})
logging.debug('solutions: %s' % repr(solutions))
self.assertEqual(len(solutions), 1)
# access prolog result Y from python:
self.assertEqual(solutions[0]['Y'].f, 9)
def test_list_equality(self):
clause = self.parser.parse_line_clause_body('[] is []')
logging.debug('clause: %s' % clause)
solutions = self.rt.search(clause, {})
logging.debug('solutions: %s' % repr(solutions))
self.assertEqual(len(solutions), 1)
clause = self.parser.parse_line_clause_body('[1] is []')
logging.debug('clause: %s' % clause)
solutions = self.rt.search(clause, {})
logging.debug('solutions: %s' % repr(solutions))
self.assertEqual(len(solutions), 0)
clause = self.parser.parse_line_clause_body('909442800.0 is []')
logging.debug('clause: %s' % clause)
solutions = self.rt.search(clause, {})
logging.debug('solutions: %s' % repr(solutions))
self.assertEqual(len(solutions), 0)
clause = self.parser.parse_line_clause_body('[1,2,3] = [1,2,3]')
logging.debug('clause: %s' % clause)
solutions = self.rt.search(clause, {})
logging.debug('solutions: %s' % repr(solutions))
self.assertEqual(len(solutions), 1)
clause = self.parser.parse_line_clause_body('[1,2,3] \\= [1,2,3,4,5]')
logging.debug('clause: %s' % clause)
solutions = self.rt.search(clause, {})
logging.debug('solutions: %s' % repr(solutions))
self.assertEqual(len(solutions), 1)
def test_is(self):
clause = self.parser.parse_line_clause_body(
'GENDER is "blubber", GENDER is wde:Male')
logging.debug('clause: %s' % clause)
solutions = self.rt.search(clause, {})
logging.debug('solutions: %s' % repr(solutions))
self.assertEqual(len(solutions), 0)
# @unittest.skip("temporarily disabled")
def test_list_eval(self):
clause = self.parser.parse_line_clause_body(
'X is 23, Z is 42, Y is [X, U, Z].')
solutions = self.rt.search(clause)
logging.debug('solutions: %s' % repr(solutions))
self.assertEqual(len(solutions), 1)
self.assertEqual(len(solutions[0]['Y'].l), 3)
self.assertEqual(solutions[0]['Y'].l[0].f, 23.0)
self.assertTrue(isinstance(solutions[0]['Y'].l[1], Variable))
self.assertEqual(solutions[0]['Y'].l[2].f, 42.0)
def test_clauses_location(self):
# this will trigger a runtime error since a(Y) is a predicate,
# but format_str requires a literal arg
clause = self.parser.parse_line_clause_body(
'X is format_str("%s", a(Y))')
logging.debug('clause: %s' % clause)
try:
solutions = self.rt.search(clause, {})
self.fail("we should have seen a runtime error here")
except PrologRuntimeError as e:
self.assertEqual(e.location.line, 1)
self.assertEqual(e.location.col, 29)
def test_cut(self):
self.parser.compile_file('samples/cut_test.pl', UNITTEST_MODULE)
# self.rt.set_trace(True)
clause = self.parser.parse_line_clause_body(u'bar(R, X)')
logging.debug(u'clause: %s' % clause)
solutions = self.rt.search(clause)
logging.debug('solutions: %s' % repr(solutions))
self.assertEqual(len(solutions), 4)
self.assertEqual(solutions[0]['R'].s, "one")
self.assertEqual(solutions[1]['R'].s, "two")
self.assertEqual(solutions[2]['R'].s, "many")
self.assertEqual(solutions[3]['R'].s, "many")
# @unittest.skip("temporarily disabled")
def test_anon_var(self):
clause = self.parser.parse_line_clause_body('_ is 23, _ is 42.')
solutions = self.rt.search(clause)
logging.debug('solutions: %s' % repr(solutions))
self.assertEqual(len(solutions), 1)
def test_nonvar(self):
clause = self.parser.parse_line_clause_body(u'S is "a", nonvar(S)')
logging.debug(u'clause: %s' % clause)
solutions = self.rt.search(clause)
logging.debug('solutions: %s' % repr(solutions))
self.assertEqual(len(solutions), 1)
clause = self.parser.parse_line_clause_body(u'nonvar(S)')
logging.debug(u'clause: %s' % clause)
solutions = self.rt.search(clause)
logging.debug('solutions: %s' % repr(solutions))
self.assertEqual(len(solutions), 0)
def test_unify_pseudo(self):
clause = self.parser.parse_line_clause_body(
u'C is foo, assertz(mem(foo, bar)), if var(C:mem|bar) then C:mem|bar := 23 endif, X := C:mem|bar'
)
logging.debug(u'clause: %s' % clause)
# self.rt.set_trace(True)
solutions = self.rt.search(clause)
logging.debug('solutions: %s' % repr(solutions))
self.assertEqual(len(solutions), 1)
self.assertEqual(solutions[0]['X'].f, 23.0)
class TestNegation(unittest.TestCase):
def setUp(self):
#
# db, store
#
db_url = 'sqlite:///foo.db'
# setup compiler + environment
self.db = LogicDB(db_url)
self.parser = PrologParser(self.db)
self.rt = PrologRuntime(self.db)
self.db.clear_module(UNITTEST_MODULE)
self.rt.set_trace(True)
def tearDown(self):
self.db.close()
# @unittest.skip("temporarily disabled")
def test_not_succ(self):
clause = self.parser.parse_line_clause_body(
'X is 1, Y is 2, not(X is Y).')
logging.debug('clause: %s' % clause)
solutions = self.rt.search(clause, {})
logging.debug('solutions: %s' % repr(solutions))
self.assertEqual(len(solutions), 1)
# @unittest.skip("temporarily disabled")
def test_not_fail(self):
clause = self.parser.parse_line_clause_body(
'X is 2, Y is 2, not(X is Y).')
logging.debug('clause: %s' % clause)
solutions = self.rt.search(clause, {})
logging.debug('solutions: %s' % repr(solutions))
self.assertEqual(len(solutions), 0)
# @unittest.skip("temporarily disabled")
def test_chancellors(self):
self.parser.compile_file('samples/not_test.pl', UNITTEST_MODULE)
clause = self.parser.parse_line_clause_body(
'was_chancellor(helmut_kohl).')
logging.debug('clause: %s' % clause)
solutions = self.rt.search(clause, {})
logging.debug('solutions: %s' % repr(solutions))
self.assertEqual(len(solutions), 1)
# @unittest.skip("temporarily disabled")
def test_double_negation(self):
self.parser.compile_file('samples/not_test.pl', UNITTEST_MODULE)
clause = self.parser.parse_line_clause_body(
'not(not(chancellor(helmut_kohl))).')
logging.debug('clause: %s' % clause)
solutions = self.rt.search(clause, {})
logging.debug('solutions: %s' % repr(solutions))
self.assertEqual(len(solutions), 1)
clause = self.parser.parse_line_clause_body(
'not(not(chancellor(angela_merkel))).')
logging.debug('clause: %s' % clause)
solutions = self.rt.search(clause, {})
logging.debug('solutions: %s' % repr(solutions))
self.assertEqual(len(solutions), 1)
clause = self.parser.parse_line_clause_body('not(not(chancellor(X))).')
logging.debug('clause: %s' % clause)
solutions = self.rt.search(clause, {})
logging.debug('solutions: %s' % repr(solutions))
self.assertEqual(len(solutions), 2)
# @unittest.skip("temporarily disabled")
def test_assertz_negation(self):
clause = self.parser.parse_line_clause_body(
'assertz(foobar(a)), foobar(a), (not(foobar(b))).')
logging.debug('clause: %s' % clause)
solutions = self.rt.search(clause, {})
logging.debug('solutions: %s' % repr(solutions))
self.assertEqual(len(solutions), 1)