def test_count_vocab_items_case_insensitive(self):
indexer = SingleIdTokenIndexer("words", lowercase_tokens=True)
counter = defaultdict(lambda: defaultdict(int))
indexer.count_vocab_items(Token("Hello"), counter)
indexer.count_vocab_items(Token("hello"), counter)
assert counter["words"] == {"hello": 2}
def test_count_vocab_items_respect_casing(self):
indexer = SingleIdTokenIndexer("words")
counter = defaultdict(lambda: defaultdict(int))
indexer.count_vocab_items(Token("Hello"), counter)
indexer.count_vocab_items(Token("hello"), counter)
assert counter["words"] == {"hello": 1, "Hello": 1}
def test_index_converts_field_correctly(self):
vocab = Dictionary()
sentence_index = vocab.add_token_to_namespace("sentence",
namespace='words')
capital_a_index = vocab.add_token_to_namespace("A", namespace='words')
capital_a_char_index = vocab.add_token_to_namespace(
"A", namespace='characters')
s_index = vocab.add_token_to_namespace("s", namespace='characters')
e_index = vocab.add_token_to_namespace("e", namespace='characters')
n_index = vocab.add_token_to_namespace("n", namespace='characters')
t_index = vocab.add_token_to_namespace("t", namespace='characters')
c_index = vocab.add_token_to_namespace("c", namespace='characters')
field = TextField([Token(t) for t in ["A", "sentence"]],
{"words": SingleIdTokenIndexer(namespace="words")})
field.index(vocab)
# pylint: disable=protected-access
assert field._indexed_tokens["words"] == [
capital_a_index, sentence_index
]
field1 = TextField(
[Token(t) for t in ["A", "sentence"]], {
"characters":
TokenCharacterIndexer(namespace="characters",
min_padding_length=1)
})
field1.index(vocab)
assert field1._indexed_tokens["characters"] == [[capital_a_char_index],
[
s_index, e_index,
n_index, t_index,
e_index, n_index,
c_index, e_index
]]
field2 = TextField(
[Token(t) for t in ["A", "sentence"]],
token_indexers={
"words":
SingleIdTokenIndexer(namespace="words"),
"characters":
TokenCharacterIndexer(namespace="characters",
min_padding_length=1)
})
field2.index(vocab)
assert field2._indexed_tokens["words"] == [
capital_a_index, sentence_index
]
assert field2._indexed_tokens["characters"] == [[capital_a_char_index],
[
s_index, e_index,
n_index, t_index,
e_index, n_index,
c_index, e_index
]]
def test_token_padding_lengths_are_computed_correctly(self):
field = TextField(
[Token(t) for t in ["A", "sentence"]],
token_indexers={
"field_with_dict":
DictReturningTokenIndexer(token_min_padding_length=3),
"words":
SingleIdTokenIndexer("words", token_min_padding_length=3),
"characters":
TokenCharacterIndexer("characters",
min_padding_length=1,
token_min_padding_length=3)
})
field.index(self.vocab)
padding_lengths = field.get_padding_lengths()
assert padding_lengths == {
'token_ids_length': 5,
'additional_key_length': 3,
'words_length': 3,
'characters_length': 3,
'num_token_characters': 8,
'num_tokens': 5,
}
tensors = field.as_tensor(padding_lengths)
assert tensors['additional_key'].tolist()[-1] == 0
assert tensors['words'].tolist()[-1] == 0
assert tensors['characters'].tolist()[-1] == [0] * 8
def test_token_indexer_returns_dict(self):
field = TextField(
[Token(t) for t in ["A", "sentence"]],
token_indexers={
"field_with_dict":
DictReturningTokenIndexer(),
"words":
SingleIdTokenIndexer("words"),
"characters":
TokenCharacterIndexer("characters", min_padding_length=1)
})
field.index(self.vocab)
padding_lengths = field.get_padding_lengths()
assert padding_lengths == {
'token_ids_length': 5,
'additional_key_length': 2,
'words_length': 2,
'characters_length': 2,
'num_token_characters': 8,
'num_tokens': 5,
}
padding_lengths['token_ids_length'] = 7
padding_lengths['additional_key_length'] = 3
padding_lengths['words_length'] = 4
padding_lengths['characters_length'] = 4
tensors = field.as_tensor(padding_lengths)
assert list(tensors['token_ids'].shape) == [7]
assert list(tensors['additional_key'].shape) == [3]
assert list(tensors['words'].shape) == [4]
assert list(tensors['characters'].shape) == [4, 8]
def test_as_tensor_handles_words_and_characters_with_longer_lengths(self):
field = TextField(
[Token(t) for t in ["a", "sentence", "."]],
token_indexers={
"words":
SingleIdTokenIndexer("words"),
"characters":
TokenCharacterIndexer("characters", min_padding_length=1)
})
field.index(self.vocab)
padding_lengths = field.get_padding_lengths()
padding_lengths["words_length"] = 5
padding_lengths["characters_length"] = 5
padding_lengths["num_token_characters"] = 10
tensor_dict = field.as_tensor(padding_lengths)
numpy.testing.assert_array_almost_equal(
tensor_dict["words"].detach().cpu().numpy(),
numpy.array([1, 2, 1, 0, 0]))
numpy.testing.assert_array_almost_equal(
tensor_dict["characters"].detach().cpu().numpy(),
numpy.array([[1, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[3, 4, 5, 6, 4, 5, 7, 4, 0, 0],
[1, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0],
[0, 0, 0, 0, 0, 0, 0, 0, 0, 0]]))
def setUp(self):
super(TestIndexField, self).setUp()
self.text = TextField(
[Token(t) for t in ["This", "is", "a", "sentence", "."]],
{"words": SingleIdTokenIndexer("words")})
def test_as_tensor_handles_words(self):
field = TextField(
[Token(t) for t in ["This", "is", "a", "sentence", "."]],
token_indexers={"words": SingleIdTokenIndexer("words")})
field.index(self.vocab)
padding_lengths = field.get_padding_lengths()
tensor_dict = field.as_tensor(padding_lengths)
numpy.testing.assert_array_almost_equal(
tensor_dict["words"].detach().cpu().numpy(),
numpy.array([1, 1, 1, 2, 1]))
def test_padding_lengths_are_computed_correctly(self):
field = TextField(
[Token(t) for t in ["This", "is", "a", "sentence", "."]],
token_indexers={"words": SingleIdTokenIndexer("words")})
field.index(self.vocab)
padding_lengths = field.get_padding_lengths()
assert padding_lengths == {"words_length": 5, "num_tokens": 5}
field = TextField(
[Token(t) for t in ["This", "is", "a", "sentence", "."]],
token_indexers={
"characters":
TokenCharacterIndexer("characters", min_padding_length=1)
})
field.index(self.vocab)
padding_lengths = field.get_padding_lengths()
assert padding_lengths == {
"num_tokens": 5,
"characters_length": 5,
"num_token_characters": 8
}
field = TextField(
[Token(t) for t in ["This", "is", "a", "sentence", "."]],
token_indexers={
"characters":
TokenCharacterIndexer("characters", min_padding_length=1),
"words":
SingleIdTokenIndexer("words")
})
field.index(self.vocab)
padding_lengths = field.get_padding_lengths()
assert padding_lengths == {
"num_tokens": 5,
"characters_length": 5,
"words_length": 5,
"num_token_characters": 8
}
def __init__(self,
source_tokenizer: Tokenizer = None,
target_tokenizer: Tokenizer = None,
source_token_indexers: Dict[str, TokenIndexer] = None,
target_token_indexers: Dict[str, TokenIndexer] = None,
source_add_start_token: bool = True,
delimiter: str = "\t",
lazy: bool = False) -> None:
super(Seq2SeqDatasetReader, self).__init__(lazy)
self.source_tokenizer = source_tokenizer or WordTokenizer()
self.target_tokenizer = target_tokenizer or self.source_tokenizer
self.source_token_indexers = source_token_indexers or {
"tokens": SingleIdTokenIndexer()
}
self.target_token_indexers = target_token_indexers or self.source_token_indexers
self.source_add_start_token = source_add_start_token
self.delimiter = delimiter
def setUp(self):
super(TestSequenceLabelField, self).setUp()
self.text = TextField(
[Token(t) for t in ["here", "are", "some", "words", "."]],
{"words": SingleIdTokenIndexer("words")})
def test_field_counts_vocab_items_correctly(self):
field = TextField(
[Token(t) for t in ["This", "is", "a", "sentence", "."]],
token_indexers={"words": SingleIdTokenIndexer("words")})
namespace_token_counts = defaultdict(lambda: defaultdict(int))
field.count_vocab_items(namespace_token_counts)
assert namespace_token_counts["words"]["This"] == 1
assert namespace_token_counts["words"]["is"] == 1
assert namespace_token_counts["words"]["a"] == 1
assert namespace_token_counts["words"]["sentence"] == 1
assert namespace_token_counts["words"]["."] == 1
assert list(namespace_token_counts.keys()) == ["words"]
field = TextField(
[Token(t) for t in ["This", "is", "a", "sentence", "."]],
token_indexers={
"characters":
TokenCharacterIndexer("characters", min_padding_length=1)
})
namespace_token_counts = defaultdict(lambda: defaultdict(int))
field.count_vocab_items(namespace_token_counts)
assert namespace_token_counts["characters"]["T"] == 1
assert namespace_token_counts["characters"]["h"] == 1
assert namespace_token_counts["characters"]["i"] == 2
assert namespace_token_counts["characters"]["s"] == 3
assert namespace_token_counts["characters"]["a"] == 1
assert namespace_token_counts["characters"]["e"] == 3
assert namespace_token_counts["characters"]["n"] == 2
assert namespace_token_counts["characters"]["t"] == 1
assert namespace_token_counts["characters"]["c"] == 1
assert namespace_token_counts["characters"]["."] == 1
assert list(namespace_token_counts.keys()) == ["characters"]
field = TextField(
[Token(t) for t in ["This", "is", "a", "sentence", "."]],
token_indexers={
"words":
SingleIdTokenIndexer("words"),
"characters":
TokenCharacterIndexer("characters", min_padding_length=1)
})
namespace_token_counts = defaultdict(lambda: defaultdict(int))
field.count_vocab_items(namespace_token_counts)
assert namespace_token_counts["characters"]["T"] == 1
assert namespace_token_counts["characters"]["h"] == 1
assert namespace_token_counts["characters"]["i"] == 2
assert namespace_token_counts["characters"]["s"] == 3
assert namespace_token_counts["characters"]["a"] == 1
assert namespace_token_counts["characters"]["e"] == 3
assert namespace_token_counts["characters"]["n"] == 2
assert namespace_token_counts["characters"]["t"] == 1
assert namespace_token_counts["characters"]["c"] == 1
assert namespace_token_counts["characters"]["."] == 1
assert namespace_token_counts["words"]["This"] == 1
assert namespace_token_counts["words"]["is"] == 1
assert namespace_token_counts["words"]["a"] == 1
assert namespace_token_counts["words"]["sentence"] == 1
assert namespace_token_counts["words"]["."] == 1
assert set(namespace_token_counts.keys()) == {"words", "characters"}
def test_printing_doesnt_crash(self):
field = TextField([Token(t) for t in ["A", "sentence"]],
{"words": SingleIdTokenIndexer(namespace="words")})
print(field)