File size: 10,298 Bytes
9382e3f |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 |
# coding=utf-8
# Copyright 2023 The HuggingFace Inc. team. All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import copy
import inspect
import tempfile
from transformers.testing_utils import require_torch, torch_device
from transformers.utils.backbone_utils import BackboneType
@require_torch
class BackboneTesterMixin:
all_model_classes = ()
has_attentions = True
def test_config(self):
config_class = self.config_class
# test default config
config = config_class()
self.assertIsNotNone(config)
num_stages = len(config.depths) if hasattr(config, "depths") else config.num_hidden_layers
expected_stage_names = ["stem"] + [f"stage{idx}" for idx in range(1, num_stages + 1)]
self.assertEqual(config.stage_names, expected_stage_names)
self.assertTrue(set(config.out_features).issubset(set(config.stage_names)))
# Test out_features and out_indices are correctly set
# out_features and out_indices both None
config = config_class(out_features=None, out_indices=None)
self.assertEqual(config.out_features, [config.stage_names[-1]])
self.assertEqual(config.out_indices, [len(config.stage_names) - 1])
# out_features and out_indices both set
config = config_class(out_features=["stem", "stage1"], out_indices=[0, 1])
self.assertEqual(config.out_features, ["stem", "stage1"])
self.assertEqual(config.out_indices, [0, 1])
# Only out_features set
config = config_class(out_features=["stage1", "stage3"])
self.assertEqual(config.out_features, ["stage1", "stage3"])
self.assertEqual(config.out_indices, [1, 3])
# Only out_indices set
config = config_class(out_indices=[0, 2])
self.assertEqual(config.out_features, [config.stage_names[0], config.stage_names[2]])
self.assertEqual(config.out_indices, [0, 2])
# Error raised when out_indices do not correspond to out_features
with self.assertRaises(ValueError):
config = config_class(out_features=["stage1", "stage2"], out_indices=[0, 2])
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.forward)
# 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_config_save_pretrained(self):
config_class = self.config_class
config_first = config_class(out_indices=[0, 1, 2, 3])
with tempfile.TemporaryDirectory() as tmpdirname:
config_first.save_pretrained(tmpdirname)
config_second = self.config_class.from_pretrained(tmpdirname)
self.assertEqual(config_second.to_dict(), config_first.to_dict())
def test_channels(self):
config, _ = self.model_tester.prepare_config_and_inputs_for_common()
for model_class in self.all_model_classes:
model = model_class(config)
self.assertEqual(len(model.channels), len(config.out_features))
num_features = model.num_features
out_indices = [config.stage_names.index(feat) for feat in config.out_features]
out_channels = [num_features[idx] for idx in out_indices]
self.assertListEqual(model.channels, out_channels)
new_config = copy.deepcopy(config)
new_config.out_features = None
model = model_class(new_config)
self.assertEqual(len(model.channels), 1)
self.assertListEqual(model.channels, [num_features[-1]])
new_config = copy.deepcopy(config)
new_config.out_indices = None
model = model_class(new_config)
self.assertEqual(len(model.channels), 1)
self.assertListEqual(model.channels, [num_features[-1]])
def test_create_from_modified_config(self):
config, inputs_dict = self.model_tester.prepare_config_and_inputs_for_common()
for model_class in self.all_model_classes:
model = model_class(config)
model.to(torch_device)
model.eval()
result = model(**inputs_dict)
self.assertEqual(len(result.feature_maps), len(config.out_features))
self.assertEqual(len(model.channels), len(config.out_features))
self.assertEqual(len(result.feature_maps), len(config.out_indices))
self.assertEqual(len(model.channels), len(config.out_indices))
# Check output of last stage is taken if out_features=None, out_indices=None
modified_config = copy.deepcopy(config)
modified_config.out_features = None
model = model_class(modified_config)
model.to(torch_device)
model.eval()
result = model(**inputs_dict)
self.assertEqual(len(result.feature_maps), 1)
self.assertEqual(len(model.channels), 1)
modified_config = copy.deepcopy(config)
modified_config.out_indices = None
model = model_class(modified_config)
model.to(torch_device)
model.eval()
result = model(**inputs_dict)
self.assertEqual(len(result.feature_maps), 1)
self.assertEqual(len(model.channels), 1)
# Check backbone can be initialized with fresh weights
modified_config = copy.deepcopy(config)
modified_config.use_pretrained_backbone = False
model = model_class(modified_config)
model.to(torch_device)
model.eval()
result = model(**inputs_dict)
def test_backbone_common_attributes(self):
config, _ = self.model_tester.prepare_config_and_inputs_for_common()
for backbone_class in self.all_model_classes:
backbone = backbone_class(config)
self.assertTrue(hasattr(backbone, "backbone_type"))
self.assertTrue(hasattr(backbone, "stage_names"))
self.assertTrue(hasattr(backbone, "num_features"))
self.assertTrue(hasattr(backbone, "out_indices"))
self.assertTrue(hasattr(backbone, "out_features"))
self.assertTrue(hasattr(backbone, "out_feature_channels"))
self.assertTrue(hasattr(backbone, "channels"))
self.assertIsInstance(backbone.backbone_type, BackboneType)
# Verify num_features has been initialized in the backbone init
self.assertIsNotNone(backbone.num_features)
self.assertTrue(len(backbone.channels) == len(backbone.out_indices))
self.assertTrue(len(backbone.stage_names) == len(backbone.num_features))
self.assertTrue(len(backbone.channels) <= len(backbone.num_features))
self.assertTrue(len(backbone.out_feature_channels) == len(backbone.stage_names))
def test_backbone_outputs(self):
config, inputs_dict = self.model_tester.prepare_config_and_inputs_for_common()
batch_size = inputs_dict["pixel_values"].shape[0]
for backbone_class in self.all_model_classes:
backbone = backbone_class(config)
backbone.to(torch_device)
backbone.eval()
outputs = backbone(**inputs_dict)
# Test default outputs and verify feature maps
self.assertIsInstance(outputs.feature_maps, tuple)
self.assertTrue(len(outputs.feature_maps) == len(backbone.channels))
for feature_map, n_channels in zip(outputs.feature_maps, backbone.channels):
self.assertTrue(feature_map.shape[:2], (batch_size, n_channels))
self.assertIsNone(outputs.hidden_states)
self.assertIsNone(outputs.attentions)
# Test output_hidden_states=True
outputs = backbone(**inputs_dict, output_hidden_states=True)
self.assertIsNotNone(outputs.hidden_states)
self.assertTrue(len(outputs.hidden_states), len(backbone.stage_names))
for hidden_state, n_channels in zip(outputs.hidden_states, backbone.channels):
self.assertTrue(hidden_state.shape[:2], (batch_size, n_channels))
# Test output_attentions=True
if self.has_attentions:
outputs = backbone(**inputs_dict, output_attentions=True)
self.assertIsNotNone(outputs.attentions)
def test_backbone_stage_selection(self):
config, inputs_dict = self.model_tester.prepare_config_and_inputs_for_common()
batch_size = inputs_dict["pixel_values"].shape[0]
for backbone_class in self.all_model_classes:
config.out_indices = [-2, -1]
backbone = backbone_class(config)
backbone.to(torch_device)
backbone.eval()
outputs = backbone(**inputs_dict)
# Test number of feature maps returned
self.assertIsInstance(outputs.feature_maps, tuple)
self.assertTrue(len(outputs.feature_maps) == 2)
# Order of channels returned is same as order of channels iterating over stage names
channels_from_stage_names = [
backbone.out_feature_channels[name] for name in backbone.stage_names if name in backbone.out_features
]
self.assertEqual(backbone.channels, channels_from_stage_names)
for feature_map, n_channels in zip(outputs.feature_maps, backbone.channels):
self.assertTrue(feature_map.shape[:2], (batch_size, n_channels))
|