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""" Testing suite for the Tensorflow CvT model. """
import inspect
import unittest
from math import floor
import numpy as np
from transformers import CvtConfig
from transformers.testing_utils import require_tf, require_vision, slow
from transformers.utils import cached_property, is_tf_available, is_vision_available
from ...test_configuration_common import ConfigTester
from ...test_modeling_tf_common import TFModelTesterMixin, floats_tensor, ids_tensor
from ...test_pipeline_mixin import PipelineTesterMixin
if is_tf_available():
import tensorflow as tf
from transformers import TFCvtForImageClassification, TFCvtModel
from transformers.models.cvt.modeling_tf_cvt import TF_CVT_PRETRAINED_MODEL_ARCHIVE_LIST
if is_vision_available():
from PIL import Image
from transformers import AutoFeatureExtractor
class TFCvtConfigTester(ConfigTester):
def create_and_test_config_common_properties(self):
config = self.config_class(**self.inputs_dict)
self.parent.assertTrue(hasattr(config, "embed_dim"))
self.parent.assertTrue(hasattr(config, "num_heads"))
class TFCvtModelTester:
def __init__(
self,
parent,
batch_size=13,
image_size=64,
num_channels=3,
embed_dim=[16, 48, 96],
num_heads=[1, 3, 6],
depth=[1, 2, 10],
patch_sizes=[7, 3, 3],
patch_stride=[4, 2, 2],
patch_padding=[2, 1, 1],
stride_kv=[2, 2, 2],
cls_token=[False, False, True],
attention_drop_rate=[0.0, 0.0, 0.0],
initializer_range=0.02,
layer_norm_eps=1e-12,
is_training=True,
use_labels=True,
num_labels=2,
):
self.parent = parent
self.batch_size = batch_size
self.image_size = image_size
self.patch_sizes = patch_sizes
self.patch_stride = patch_stride
self.patch_padding = patch_padding
self.is_training = is_training
self.use_labels = use_labels
self.num_labels = num_labels
self.num_channels = num_channels
self.embed_dim = embed_dim
self.num_heads = num_heads
self.stride_kv = stride_kv
self.depth = depth
self.cls_token = cls_token
self.attention_drop_rate = attention_drop_rate
self.initializer_range = initializer_range
self.layer_norm_eps = layer_norm_eps
def prepare_config_and_inputs(self):
pixel_values = floats_tensor([self.batch_size, self.num_channels, self.image_size, self.image_size])
labels = None
if self.use_labels:
# create a random int32 tensor of given shape
labels = ids_tensor([self.batch_size], self.num_labels)
config = self.get_config()
return config, pixel_values, labels
def get_config(self):
return CvtConfig(
image_size=self.image_size,
num_labels=self.num_labels,
num_channels=self.num_channels,
embed_dim=self.embed_dim,
num_heads=self.num_heads,
patch_sizes=self.patch_sizes,
patch_padding=self.patch_padding,
patch_stride=self.patch_stride,
stride_kv=self.stride_kv,
depth=self.depth,
cls_token=self.cls_token,
attention_drop_rate=self.attention_drop_rate,
initializer_range=self.initializer_range,
)
def create_and_check_model(self, config, pixel_values, labels):
model = TFCvtModel(config=config)
result = model(pixel_values, training=False)
image_size = (self.image_size, self.image_size)
height, width = image_size[0], image_size[1]
for i in range(len(self.depth)):
height = floor(((height + 2 * self.patch_padding[i] - self.patch_sizes[i]) / self.patch_stride[i]) + 1)
width = floor(((width + 2 * self.patch_padding[i] - self.patch_sizes[i]) / self.patch_stride[i]) + 1)
self.parent.assertEqual(result.last_hidden_state.shape, (self.batch_size, self.embed_dim[-1], height, width))
def create_and_check_for_image_classification(self, config, pixel_values, labels):
config.num_labels = self.num_labels
model = TFCvtForImageClassification(config)
result = model(pixel_values, labels=labels, training=False)
self.parent.assertEqual(result.logits.shape, (self.batch_size, self.num_labels))
def prepare_config_and_inputs_for_common(self):
config_and_inputs = self.prepare_config_and_inputs()
config, pixel_values, labels = config_and_inputs
inputs_dict = {"pixel_values": pixel_values}
return config, inputs_dict
@require_tf
class TFCvtModelTest(TFModelTesterMixin, PipelineTesterMixin, unittest.TestCase):
"""
Here we also overwrite some of the tests of test_modeling_common.py, as Cvt
does not use input_ids, inputs_embeds, attention_mask and seq_length.
"""
all_model_classes = (TFCvtModel, TFCvtForImageClassification) if is_tf_available() else ()
pipeline_model_mapping = (
{"feature-extraction": TFCvtModel, "image-classification": TFCvtForImageClassification}
if is_tf_available()
else {}
)
test_pruning = False
test_resize_embeddings = False
test_head_masking = False
has_attentions = False
test_onnx = False
def setUp(self):
self.model_tester = TFCvtModelTester(self)
self.config_tester = TFCvtConfigTester(self, config_class=CvtConfig, has_text_modality=False, hidden_size=37)
def test_config(self):
self.config_tester.create_and_test_config_common_properties()
self.config_tester.create_and_test_config_to_json_string()
self.config_tester.create_and_test_config_to_json_file()
self.config_tester.create_and_test_config_from_and_save_pretrained()
self.config_tester.create_and_test_config_with_num_labels()
self.config_tester.check_config_can_be_init_without_params()
self.config_tester.check_config_arguments_init()
@unittest.skip(reason="Cvt does not output attentions")
def test_attention_outputs(self):
pass
@unittest.skip(reason="Cvt does not use inputs_embeds")
def test_inputs_embeds(self):
pass
@unittest.skip(reason="Cvt does not support input and output embeddings")
def test_model_common_attributes(self):
pass
@unittest.skipIf(
not is_tf_available() or len(tf.config.list_physical_devices("GPU")) == 0,
reason="TF does not support backprop for grouped convolutions on CPU.",
)
def test_dataset_conversion(self):
super().test_dataset_conversion()
@unittest.skipIf(
not is_tf_available() or len(tf.config.list_physical_devices("GPU")) == 0,
reason="TF does not support backprop for grouped convolutions on CPU.",
)
def test_keras_fit(self):
super().test_keras_fit()
def test_keras_fit_mixed_precision(self):
policy = tf.keras.mixed_precision.Policy("mixed_float16")
tf.keras.mixed_precision.set_global_policy(policy)
super().test_keras_fit()
tf.keras.mixed_precision.set_global_policy("float32")
def test_forward_signature(self):
config, _ = self.model_tester.prepare_config_and_inputs_for_common()
for model_class in self.all_model_classes:
model = model_class(config)
signature = inspect.signature(model.call)
# signature.parameters is an OrderedDict => so arg_names order is deterministic
arg_names = [*signature.parameters.keys()]
expected_arg_names = ["pixel_values"]
self.assertListEqual(arg_names[:1], expected_arg_names)
def test_hidden_states_output(self):
def check_hidden_states_output(inputs_dict, config, model_class):
model = model_class(config)
outputs = model(**self._prepare_for_class(inputs_dict, model_class))
hidden_states = outputs.hidden_states
expected_num_layers = len(self.model_tester.depth)
self.assertEqual(len(hidden_states), expected_num_layers)
# verify the first hidden states (first block)
self.assertListEqual(
list(hidden_states[0].shape[-3:]),
[
self.model_tester.embed_dim[0],
self.model_tester.image_size // 4,
self.model_tester.image_size // 4,
],
)
config, inputs_dict = self.model_tester.prepare_config_and_inputs_for_common()
for model_class in self.all_model_classes:
inputs_dict["output_hidden_states"] = True
check_hidden_states_output(inputs_dict, config, model_class)
# check that output_hidden_states also work using config
del inputs_dict["output_hidden_states"]
config.output_hidden_states = True
check_hidden_states_output(inputs_dict, config, model_class)
def test_model(self):
config_and_inputs = self.model_tester.prepare_config_and_inputs()
self.model_tester.create_and_check_model(*config_and_inputs)
def test_for_image_classification(self):
config_and_inputs = self.model_tester.prepare_config_and_inputs()
self.model_tester.create_and_check_for_image_classification(*config_and_inputs)
@slow
def test_model_from_pretrained(self):
for model_name in TF_CVT_PRETRAINED_MODEL_ARCHIVE_LIST[:1]:
model = TFCvtModel.from_pretrained(model_name)
self.assertIsNotNone(model)
# We will verify our results on an image of cute cats
def prepare_img():
image = Image.open("./tests/fixtures/tests_samples/COCO/000000039769.png")
return image
@require_tf
@require_vision
class TFCvtModelIntegrationTest(unittest.TestCase):
@cached_property
def default_feature_extractor(self):
return AutoFeatureExtractor.from_pretrained(TF_CVT_PRETRAINED_MODEL_ARCHIVE_LIST[0])
@slow
def test_inference_image_classification_head(self):
model = TFCvtForImageClassification.from_pretrained(TF_CVT_PRETRAINED_MODEL_ARCHIVE_LIST[0])
feature_extractor = self.default_feature_extractor
image = prepare_img()
inputs = feature_extractor(images=image, return_tensors="tf")
# forward pass
outputs = model(**inputs)
# verify the logits
expected_shape = tf.TensorShape((1, 1000))
self.assertEqual(outputs.logits.shape, expected_shape)
expected_slice = tf.constant([0.9285, 0.9015, -0.3150])
self.assertTrue(np.allclose(outputs.logits[0, :3].numpy(), expected_slice, atol=1e-4))
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