def test_concats_of(self):
r1 = regexp.Character('a')
r2 = regexp.Character('b')
r3 = regexp.Character('c')
concat = regexp.ConcatsOf(r1, r2, r3)
assert concat.ShouldAccept('abc')
assert not concat.ShouldAccept('')
assert not concat.ShouldAccept('ab')
def test_union(self):
r1 = regexp.Character('a')
r2 = regexp.Character('b')
union = regexp.Union(r1, r2)
assert union.ShouldAccept('a')
assert union.ShouldAccept('b')
assert not union.ShouldAccept('')
assert not union.ShouldAccept('aa')
def test_concat_simple(self):
r1 = regexp.Character('a')
r2 = regexp.Character('b')
re = regexp.Concat(r1, r2)
assert re.ShouldAccept('ab')
assert not re.ShouldAccept('a')
assert not re.ShouldAccept('b')
assert not re.ShouldAccept('')
def test_unions_of(self):
r1 = regexp.Character('a')
r2 = regexp.Character('b')
r3 = regexp.Character('c')
union = regexp.UnionsOf(r1, r2, r3)
assert union.ShouldAccept('a')
assert union.ShouldAccept('b')
assert union.ShouldAccept('c')
assert not union.ShouldAccept('d')
def test_one_or_more(self):
r = regexp.Character('a')
opt = regexp.OneOrMore(r)
assert opt.ShouldAccept('a')
assert opt.ShouldAccept('aaa')
assert not opt.ShouldAccept('b')
def test_optional(self):
r = regexp.Character('a')
opt = regexp.Optional(r)
assert opt.ShouldAccept('a')
assert opt.ShouldAccept('')
assert not opt.ShouldAccept('b')
def test_concat_edge(self):
r1 = regexp.Character('a')
r2 = regexp.epsilon
re = regexp.Concat(r1, r2)
assert not re.ShouldAccept('12')
assert not re.ShouldAccept('aa')
assert not re.ShouldAccept('')
assert re.ShouldAccept('a')
def test_character(self):
re = regexp.Character('a')
assert not re.ShouldAccept('12')
assert not re.ShouldAccept('aa')
assert not re.ShouldAccept('')
assert re.ShouldAccept('a')
def test_zero_or_more(self):
r = regexp.ZeroOrMore(regexp.Character('a'))
assert r.ShouldAccept('')
assert r.ShouldAccept('a')
assert r.ShouldAccept('aaa')
assert not r.ShouldAccept('aab')
def test_character_matcher(self):
re = regexp.Character(lambda x: x.isalpha())
assert re.ShouldAccept('a')
assert re.ShouldAccept('b')
assert not re.ShouldAccept('2')