init

transformers/tests/models/siglip/test_image_processing_siglip.py

@@ -0,0 +1,131 @@
+# Copyright 2024 HuggingFace Inc.
+#
+# 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 unittest
+
+from transformers.testing_utils import require_torch, require_vision
+from transformers.utils import is_torchvision_available, is_vision_available
+
+from ...test_image_processing_common import ImageProcessingTestMixin, prepare_image_inputs
+
+
+if is_vision_available():
+    from transformers import SiglipImageProcessor
+
+    if is_torchvision_available():
+        from transformers import SiglipImageProcessorFast
+
+
+class SiglipImageProcessingTester:
+    def __init__(
+        self,
+        parent,
+        batch_size=7,
+        num_channels=3,
+        image_size=18,
+        min_resolution=30,
+        max_resolution=400,
+        do_resize=True,
+        size=None,
+        do_rescale=True,
+        rescale_factor=1 / 255,
+        do_normalize=True,
+        image_mean=[0.5, 0.5, 0.5],
+        image_std=[0.5, 0.5, 0.5],
+    ):
+        size = size if size is not None else {"height": 18, "width": 18}
+        self.parent = parent
+        self.batch_size = batch_size
+        self.num_channels = num_channels
+        self.image_size = image_size
+        self.min_resolution = min_resolution
+        self.max_resolution = max_resolution
+        self.do_resize = do_resize
+        self.size = size
+        self.do_rescale = do_rescale
+        self.rescale_factor = rescale_factor
+        self.do_normalize = do_normalize
+        self.image_mean = image_mean
+        self.image_std = image_std
+
+    def prepare_image_processor_dict(self):
+        return {
+            "do_resize": self.do_resize,
+            "size": self.size,
+            "do_rescale": self.do_rescale,
+            "rescale_factor": self.rescale_factor,
+            "do_normalize": self.do_normalize,
+            "image_mean": self.image_mean,
+            "image_std": self.image_std,
+        }
+
+    def expected_output_image_shape(self, images):
+        return self.num_channels, self.size["height"], self.size["width"]
+
+    def prepare_image_inputs(self, equal_resolution=False, numpify=False, torchify=False):
+        return prepare_image_inputs(
+            batch_size=self.batch_size,
+            num_channels=self.num_channels,
+            min_resolution=self.min_resolution,
+            max_resolution=self.max_resolution,
+            equal_resolution=equal_resolution,
+            numpify=numpify,
+            torchify=torchify,
+        )
+
+
+@require_torch
+@require_vision
+# Copied from tests.models.clip.test_image_processing_clip.CLIPImageProcessingTest with CLIP->Siglip
+class SiglipImageProcessingTest(ImageProcessingTestMixin, unittest.TestCase):
+    image_processing_class = SiglipImageProcessor if is_vision_available() else None
+    fast_image_processing_class = SiglipImageProcessorFast if is_torchvision_available() else None
+
+    def setUp(self):
+        super().setUp()
+        self.image_processor_tester = SiglipImageProcessingTester(self)
+
+    @property
+    def image_processor_dict(self):
+        return self.image_processor_tester.prepare_image_processor_dict()
+
+    # Ignore copy
+    def test_image_processor_properties(self):
+        for image_processing_class in self.image_processor_list:
+            image_processing = image_processing_class(**self.image_processor_dict)
+            self.assertTrue(hasattr(image_processing, "do_resize"))
+            self.assertTrue(hasattr(image_processing, "size"))
+            self.assertTrue(hasattr(image_processing, "resample"))
+            self.assertTrue(hasattr(image_processing, "do_rescale"))
+            self.assertTrue(hasattr(image_processing, "rescale_factor"))
+            self.assertTrue(hasattr(image_processing, "do_normalize"))
+            self.assertTrue(hasattr(image_processing, "image_mean"))
+            self.assertTrue(hasattr(image_processing, "image_std"))
+
+    # Ignore copy
+    def test_image_processor_from_dict_with_kwargs(self):
+        for image_processing_class in self.image_processor_list:
+            image_processor = image_processing_class.from_dict(self.image_processor_dict)
+            self.assertEqual(image_processor.size, {"height": 18, "width": 18})
+
+            image_processor = self.image_processing_class.from_dict(
+                self.image_processor_dict, size={"height": 84, "width": 84}
+            )
+            self.assertEqual(image_processor.size, {"height": 84, "width": 84})
+
+    @unittest.skip(reason="not supported")
+    # Ignore copy
+    def test_call_numpy_4_channels(self):
+        pass

transformers/tests/models/siglip/test_modeling_siglip.py

@@ -0,0 +1,732 @@
+# Copyright 2024 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.
+"""Testing suite for the PyTorch SigLIP model."""
+
+import inspect
+import os
+import tempfile
+import unittest
+
+import numpy as np
+import requests
+from parameterized import parameterized
+
+from transformers import SiglipConfig, SiglipTextConfig, SiglipVisionConfig
+from transformers.testing_utils import (
+    require_torch,
+    require_vision,
+    slow,
+    torch_device,
+)
+from transformers.utils import (
+    is_torch_available,
+    is_vision_available,
+)
+
+from ...test_configuration_common import ConfigTester
+from ...test_modeling_common import (
+    TEST_EAGER_MATCHES_SDPA_INFERENCE_PARAMETERIZATION,
+    ModelTesterMixin,
+    _config_zero_init,
+    floats_tensor,
+    ids_tensor,
+    random_attention_mask,
+)
+from ...test_pipeline_mixin import PipelineTesterMixin
+
+
+if is_torch_available():
+    import torch
+    from torch import nn
+
+    from transformers import SiglipForImageClassification, SiglipModel, SiglipTextModel, SiglipVisionModel
+
+if is_vision_available():
+    from PIL import Image
+
+    from transformers import SiglipProcessor
+
+
+class SiglipModelTesterMixin(ModelTesterMixin):
+    def test_sdpa_can_dispatch_composite_models(self):
+        for model_class in self.all_model_classes:
+            config, inputs_dict = self.model_tester.prepare_config_and_inputs_for_common()
+            model = model_class(config)
+
+            with tempfile.TemporaryDirectory() as tmpdirname:
+                model.save_pretrained(tmpdirname)
+
+                # Load the model with SDPA
+                model_sdpa = model_class.from_pretrained(tmpdirname)
+
+                # Load model with eager attention
+                model_eager = model_class.from_pretrained(
+                    tmpdirname,
+                    attn_implementation="eager",
+                )
+
+            if hasattr(model_sdpa, "vision_model"):
+                self.assertTrue(model_sdpa.vision_model.config._attn_implementation == "sdpa")
+                self.assertTrue(model_eager.vision_model.config._attn_implementation == "eager")
+
+            if hasattr(model_sdpa, "text_model"):
+                self.assertTrue(model_sdpa.text_model.config._attn_implementation == "sdpa")
+                self.assertTrue(model_eager.text_model.config._attn_implementation == "eager")
+
+            self.assertTrue(model_sdpa.config._attn_implementation == "sdpa")
+            self.assertTrue(model_eager.config._attn_implementation == "eager")
+
+
+class SiglipVisionModelTester:
+    def __init__(
+        self,
+        parent,
+        batch_size=12,
+        image_size=4,
+        patch_size=2,
+        num_channels=3,
+        is_training=True,
+        hidden_size=64,
+        num_hidden_layers=2,
+        num_attention_heads=2,
+        intermediate_size=37,
+        dropout=0.1,
+        attention_dropout=0.1,
+        initializer_range=0.02,
+        scope=None,
+    ):
+        self.parent = parent
+        self.batch_size = batch_size
+        self.image_size = image_size
+        self.patch_size = patch_size
+        self.num_channels = num_channels
+        self.is_training = is_training
+        self.hidden_size = hidden_size
+        self.num_hidden_layers = num_hidden_layers
+        self.num_attention_heads = num_attention_heads
+        self.intermediate_size = intermediate_size
+        self.dropout = dropout
+        self.attention_dropout = attention_dropout
+        self.initializer_range = initializer_range
+        self.scope = scope
+
+        # in ViT, the seq length equals the number of patches
+        num_patches = (image_size // patch_size) ** 2
+        self.seq_length = num_patches
+
+    # Copied from tests.models.clip.test_modeling_clip.CLIPVisionModelTester.prepare_config_and_inputs
+    def prepare_config_and_inputs(self):
+        pixel_values = floats_tensor([self.batch_size, self.num_channels, self.image_size, self.image_size])
+        config = self.get_config()
+
+        return config, pixel_values
+
+    def get_config(self):
+        return SiglipVisionConfig(
+            image_size=self.image_size,
+            patch_size=self.patch_size,
+            num_channels=self.num_channels,
+            hidden_size=self.hidden_size,
+            num_hidden_layers=self.num_hidden_layers,
+            num_attention_heads=self.num_attention_heads,
+            intermediate_size=self.intermediate_size,
+            dropout=self.dropout,
+            attention_dropout=self.attention_dropout,
+            initializer_range=self.initializer_range,
+        )
+
+    def create_and_check_model(self, config, pixel_values):
+        model = SiglipVisionModel(config=config)
+        model.to(torch_device)
+        model.eval()
+        with torch.no_grad():
+            result = model(pixel_values)
+        # expected sequence length = num_patches + 1 (we add 1 for the [CLS] token)
+        image_size = (self.image_size, self.image_size)
+        patch_size = (self.patch_size, self.patch_size)
+        num_patches = (image_size[1] // patch_size[1]) * (image_size[0] // patch_size[0])
+        self.parent.assertEqual(result.last_hidden_state.shape, (self.batch_size, num_patches, self.hidden_size))
+        self.parent.assertEqual(result.pooler_output.shape, (self.batch_size, self.hidden_size))
+
+    # Copied from tests.models.clip.test_modeling_clip.CLIPVisionModelTester.prepare_config_and_inputs_for_common
+    def prepare_config_and_inputs_for_common(self):
+        config_and_inputs = self.prepare_config_and_inputs()
+        config, pixel_values = config_and_inputs
+        inputs_dict = {"pixel_values": pixel_values}
+        return config, inputs_dict
+
+
+@require_torch
+class SiglipVisionModelTest(SiglipModelTesterMixin, unittest.TestCase):
+    """
+    Here we also overwrite some of the tests of test_modeling_common.py, as SIGLIP does not use input_ids, inputs_embeds,
+    attention_mask and seq_length.
+    """
+
+    all_model_classes = (SiglipVisionModel,) if is_torch_available() else ()
+    fx_compatible = False
+    test_pruning = False
+    test_resize_embeddings = False
+    test_head_masking = False
+    # MP works but offload doesn't work when the MultiheadAttention is offloaded
+    # TODO: One potential solution would be to add to set preload_module_classes = ["SiglipMultiheadAttentionPoolingHead"]
+    # in the dispatch_model function
+    test_cpu_offload = False
+    test_disk_offload_safetensors = False
+    test_disk_offload_bin = False
+
+    def setUp(self):
+        self.model_tester = SiglipVisionModelTester(self)
+        self.config_tester = ConfigTester(
+            self, config_class=SiglipVisionConfig, has_text_modality=False, hidden_size=37
+        )
+
+    def test_config(self):
+        self.config_tester.run_common_tests()
+
+    @unittest.skip(reason="SIGLIP does not use inputs_embeds")
+    def test_inputs_embeds(self):
+        pass
+
+    def test_model_get_set_embeddings(self):
+        config, _ = self.model_tester.prepare_config_and_inputs_for_common()
+
+        for model_class in self.all_model_classes:
+            model = model_class(config)
+            self.assertIsInstance(model.get_input_embeddings(), (nn.Module))
+            x = model.get_output_embeddings()
+            self.assertTrue(x is None or isinstance(x, nn.Linear))
+
+    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_model(self):
+        config_and_inputs = self.model_tester.prepare_config_and_inputs()
+        self.model_tester.create_and_check_model(*config_and_inputs)
+
+    @unittest.skip(reason="SiglipVisionModel does not support standalone training")
+    def test_training(self):
+        pass
+
+    @unittest.skip(reason="SiglipVisionModel does not support standalone training")
+    def test_training_gradient_checkpointing(self):
+        pass
+
+    @unittest.skip(reason="SiglipVisionModel does not support standalone training")
+    def test_training_gradient_checkpointing_use_reentrant(self):
+        pass
+
+    @unittest.skip(reason="SiglipVisionModel does not support standalone training")
+    def test_training_gradient_checkpointing_use_reentrant_false(self):
+        pass
+
+    @unittest.skip(reason="Siglip uses a non-standard initialization scheme")
+    def test_initialization(self):
+        pass
+
+    @slow
+    def test_model_from_pretrained(self):
+        model_name = "google/siglip-base-patch16-224"
+        model = SiglipVisionModel.from_pretrained(model_name)
+        self.assertIsNotNone(model)
+
+    @parameterized.expand(TEST_EAGER_MATCHES_SDPA_INFERENCE_PARAMETERIZATION)
+    def test_eager_matches_sdpa_inference(self, *args):
+        # adding only flaky decorator here and call the parent test method
+        return getattr(ModelTesterMixin, self._testMethodName)(self)
+
+
+class SiglipTextModelTester:
+    def __init__(
+        self,
+        parent,
+        batch_size=12,
+        seq_length=7,
+        is_training=True,
+        use_input_mask=True,
+        use_labels=True,
+        vocab_size=99,
+        hidden_size=64,
+        num_hidden_layers=2,
+        num_attention_heads=2,
+        intermediate_size=37,
+        dropout=0.1,
+        attention_dropout=0.1,
+        max_position_embeddings=512,
+        initializer_range=0.02,
+        scope=None,
+    ):
+        self.parent = parent
+        self.batch_size = batch_size
+        self.seq_length = seq_length
+        self.is_training = is_training
+        self.use_input_mask = use_input_mask
+        self.use_labels = use_labels
+        self.vocab_size = vocab_size
+        self.hidden_size = hidden_size
+        self.num_hidden_layers = num_hidden_layers
+        self.num_attention_heads = num_attention_heads
+        self.intermediate_size = intermediate_size
+        self.dropout = dropout
+        self.attention_dropout = attention_dropout
+        self.max_position_embeddings = max_position_embeddings
+        self.initializer_range = initializer_range
+        self.scope = scope
+
+    # Copied from tests.models.clip.test_modeling_clip.CLIPTextModelTester.prepare_config_and_inputs
+    def prepare_config_and_inputs(self):
+        input_ids = ids_tensor([self.batch_size, self.seq_length], self.vocab_size)
+
+        input_mask = None
+        if self.use_input_mask:
+            input_mask = random_attention_mask([self.batch_size, self.seq_length])
+
+        if input_mask is not None:
+            batch_size, seq_length = input_mask.shape
+            rnd_start_indices = np.random.randint(1, seq_length - 1, size=(batch_size,))
+            for batch_idx, start_index in enumerate(rnd_start_indices):
+                input_mask[batch_idx, :start_index] = 1
+                input_mask[batch_idx, start_index:] = 0
+
+        config = self.get_config()
+
+        return config, input_ids, input_mask
+
+    def get_config(self):
+        return SiglipTextConfig(
+            vocab_size=self.vocab_size,
+            hidden_size=self.hidden_size,
+            num_hidden_layers=self.num_hidden_layers,
+            num_attention_heads=self.num_attention_heads,
+            intermediate_size=self.intermediate_size,
+            dropout=self.dropout,
+            attention_dropout=self.attention_dropout,
+            max_position_embeddings=self.max_position_embeddings,
+            initializer_range=self.initializer_range,
+        )
+
+    def create_and_check_model(self, config, input_ids, input_mask):
+        model = SiglipTextModel(config=config)
+        model.to(torch_device)
+        model.eval()
+        with torch.no_grad():
+            result = model(input_ids, attention_mask=input_mask)
+            result = model(input_ids)
+        self.parent.assertEqual(result.last_hidden_state.shape, (self.batch_size, self.seq_length, self.hidden_size))
+        self.parent.assertEqual(result.pooler_output.shape, (self.batch_size, self.hidden_size))
+
+    # Copied from tests.models.clip.test_modeling_clip.CLIPTextModelTester.prepare_config_and_inputs_for_common
+    def prepare_config_and_inputs_for_common(self):
+        config_and_inputs = self.prepare_config_and_inputs()
+        config, input_ids, input_mask = config_and_inputs
+        inputs_dict = {"input_ids": input_ids, "attention_mask": input_mask}
+        return config, inputs_dict
+
+
+@require_torch
+class SiglipTextModelTest(SiglipModelTesterMixin, unittest.TestCase):
+    all_model_classes = (SiglipTextModel,) if is_torch_available() else ()
+    fx_compatible = False
+    test_pruning = False
+    test_head_masking = False
+    model_split_percents = [0.5, 0.8, 0.9]
+
+    # Copied from tests.models.clip.test_modeling_clip.CLIPTextModelTest.setUp with CLIP->Siglip
+    def setUp(self):
+        self.model_tester = SiglipTextModelTester(self)
+        self.config_tester = ConfigTester(self, config_class=SiglipTextConfig, hidden_size=37)
+
+    # Copied from tests.models.clip.test_modeling_clip.CLIPTextModelTest.test_config
+    def test_config(self):
+        self.config_tester.run_common_tests()
+
+    # Copied from tests.models.clip.test_modeling_clip.CLIPTextModelTest.test_model
+    def test_model(self):
+        config_and_inputs = self.model_tester.prepare_config_and_inputs()
+        self.model_tester.create_and_check_model(*config_and_inputs)
+
+    @unittest.skip(reason="SiglipTextModel does not support standalone training")
+    def test_training(self):
+        pass
+
+    @unittest.skip(reason="SiglipTextModel does not support standalone training")
+    def test_training_gradient_checkpointing(self):
+        pass
+
+    @unittest.skip(reason="SiglipTextModel does not support standalone training")
+    def test_training_gradient_checkpointing_use_reentrant(self):
+        pass
+
+    @unittest.skip(reason="SiglipTextModel does not support standalone training")
+    def test_training_gradient_checkpointing_use_reentrant_false(self):
+        pass
+
+    @unittest.skip(reason="Siglip does not use inputs_embeds")
+    # Copied from tests.models.clip.test_modeling_clip.CLIPTextModelTest.test_inputs_embeds
+    def test_inputs_embeds(self):
+        pass
+
+    @unittest.skip(reason="Siglip uses a non-standard initialization scheme")
+    def test_initialization(self):
+        pass
+
+    @slow
+    def test_model_from_pretrained(self):
+        model_name = "google/siglip-base-patch16-224"
+        model = SiglipTextModel.from_pretrained(model_name)
+        self.assertIsNotNone(model)
+
+
+class SiglipModelTester:
+    def __init__(self, parent, text_kwargs=None, vision_kwargs=None, is_training=True):
+        if text_kwargs is None:
+            text_kwargs = {}
+        if vision_kwargs is None:
+            vision_kwargs = {}
+
+        self.parent = parent
+        self.text_model_tester = SiglipTextModelTester(parent, **text_kwargs)
+        self.vision_model_tester = SiglipVisionModelTester(parent, **vision_kwargs)
+        self.batch_size = self.text_model_tester.batch_size  # need bs for batching_equivalence test
+        self.is_training = is_training
+
+    # Copied from tests.models.clip.test_modeling_clip.CLIPModelTester.prepare_config_and_inputs
+    def prepare_config_and_inputs(self):
+        text_config, input_ids, attention_mask = self.text_model_tester.prepare_config_and_inputs()
+        vision_config, pixel_values = self.vision_model_tester.prepare_config_and_inputs()
+
+        config = self.get_config()
+
+        return config, input_ids, attention_mask, pixel_values
+
+    def get_config(self):
+        return SiglipConfig(
+            text_config=self.text_model_tester.get_config().to_dict(),
+            vision_config=self.vision_model_tester.get_config().to_dict(),
+        )
+
+    def create_and_check_model(self, config, input_ids, attention_mask, pixel_values):
+        model = SiglipModel(config).to(torch_device).eval()
+        with torch.no_grad():
+            result = model(input_ids, pixel_values, attention_mask)
+        self.parent.assertEqual(
+            result.logits_per_image.shape, (self.vision_model_tester.batch_size, self.text_model_tester.batch_size)
+        )
+        self.parent.assertEqual(
+            result.logits_per_text.shape, (self.text_model_tester.batch_size, self.vision_model_tester.batch_size)
+        )
+
+    def prepare_config_and_inputs_for_common(self):
+        config_and_inputs = self.prepare_config_and_inputs()
+        config, input_ids, attention_mask, pixel_values = config_and_inputs
+        inputs_dict = {
+            "input_ids": input_ids,
+            "attention_mask": attention_mask,
+            "pixel_values": pixel_values,
+            "return_loss": False,
+        }
+        return config, inputs_dict
+
+
+@require_torch
+class SiglipModelTest(SiglipModelTesterMixin, PipelineTesterMixin, unittest.TestCase):
+    additional_model_inputs = ["pixel_values"]
+    all_model_classes = (SiglipModel,) if is_torch_available() else ()
+    pipeline_model_mapping = {"feature-extraction": SiglipModel} if is_torch_available() else {}
+    fx_compatible = False
+    test_head_masking = False
+    test_pruning = False
+    test_resize_embeddings = False
+    test_attention_outputs = False
+    # MP works but offload doesn't work when the MultiheadAttention is offloaded
+    # TODO: One potential solution would be to add to set preload_module_classes = ["SiglipMultiheadAttentionPoolingHead"]
+    # in the dispatch_model function
+    test_cpu_offload = False
+    test_disk_offload_safetensors = False
+    test_disk_offload_bin = False
+    _is_composite = True
+
+    def setUp(self):
+        self.model_tester = SiglipModelTester(self)
+        self.config_tester = ConfigTester(self, config_class=SiglipConfig, has_text_modality=False)
+
+    def test_config(self):
+        self.config_tester.run_common_tests()
+
+    # Copied from tests.models.clip.test_modeling_clip.CLIPModelTest.test_model
+    def test_model(self):
+        config_and_inputs = self.model_tester.prepare_config_and_inputs()
+        self.model_tester.create_and_check_model(*config_and_inputs)
+
+    @unittest.skip(reason="Hidden_states is tested in individual model tests")
+    # Copied from tests.models.clip.test_modeling_clip.CLIPModelTest.test_hidden_states_output
+    def test_hidden_states_output(self):
+        pass
+
+    @unittest.skip(reason="Inputs_embeds is tested in individual model tests")
+    # Copied from tests.models.clip.test_modeling_clip.CLIPModelTest.test_inputs_embeds
+    def test_inputs_embeds(self):
+        pass
+
+    @unittest.skip(reason="Retain_grad is tested in individual model tests")
+    # Copied from tests.models.clip.test_modeling_clip.CLIPModelTest.test_retain_grad_hidden_states_attentions
+    def test_retain_grad_hidden_states_attentions(self):
+        pass
+
+    @unittest.skip(reason="SiglipModel does not have input/output embeddings")
+    # Copied from tests.models.clip.test_modeling_clip.CLIPModelTest.test_model_get_set_embeddings
+    def test_model_get_set_embeddings(self):
+        pass
+
+    @unittest.skip(reason="Siglip uses a non-standard initialization scheme")
+    def test_initialization(self):
+        pass
+
+    # Copied from tests.models.clip.test_modeling_clip.CLIPModelTest._create_and_check_torchscript with CLIP->Siglip
+    def _create_and_check_torchscript(self, config, inputs_dict):
+        if not self.test_torchscript:
+            self.skipTest(reason="test_torchscript is set to False")
+
+        configs_no_init = _config_zero_init(config)  # To be sure we have no Nan
+        configs_no_init.torchscript = True
+        configs_no_init.return_dict = False
+        for model_class in self.all_model_classes:
+            model = model_class(config=configs_no_init)
+            model.to(torch_device)
+            model.eval()
+
+            try:
+                input_ids = inputs_dict["input_ids"]
+                pixel_values = inputs_dict["pixel_values"]  # Siglip needs pixel_values
+                traced_model = torch.jit.trace(model, (input_ids, pixel_values))
+            except RuntimeError:
+                self.fail("Couldn't trace module.")
+
+            with tempfile.TemporaryDirectory() as tmp_dir_name:
+                pt_file_name = os.path.join(tmp_dir_name, "traced_model.pt")
+
+                try:
+                    torch.jit.save(traced_model, pt_file_name)
+                except Exception:
+                    self.fail("Couldn't save module.")
+
+                try:
+                    loaded_model = torch.jit.load(pt_file_name)
+                except Exception:
+                    self.fail("Couldn't load module.")
+
+            model.to(torch_device)
+            model.eval()
+
+            loaded_model.to(torch_device)
+            loaded_model.eval()
+
+            model_state_dict = model.state_dict()
+            loaded_model_state_dict = loaded_model.state_dict()
+
+            non_persistent_buffers = {}
+            for key in loaded_model_state_dict:
+                if key not in model_state_dict:
+                    non_persistent_buffers[key] = loaded_model_state_dict[key]
+
+            loaded_model_state_dict = {
+                key: value for key, value in loaded_model_state_dict.items() if key not in non_persistent_buffers
+            }
+
+            self.assertEqual(set(model_state_dict.keys()), set(loaded_model_state_dict.keys()))
+
+            model_buffers = list(model.buffers())
+            for non_persistent_buffer in non_persistent_buffers.values():
+                found_buffer = False
+                for i, model_buffer in enumerate(model_buffers):
+                    if torch.equal(non_persistent_buffer, model_buffer):
+                        found_buffer = True
+                        break
+
+                self.assertTrue(found_buffer)
+                model_buffers.pop(i)
+
+            models_equal = True
+            for layer_name, p1 in model_state_dict.items():
+                p2 = loaded_model_state_dict[layer_name]
+                if p1.data.ne(p2.data).sum() > 0:
+                    models_equal = False
+
+            self.assertTrue(models_equal)
+
+    # Copied from tests.models.clip.test_modeling_clip.CLIPModelTest.test_load_vision_text_config with CLIP->Siglip
+    def test_load_vision_text_config(self):
+        config, inputs_dict = self.model_tester.prepare_config_and_inputs_for_common()
+
+        # Save SiglipConfig and check if we can load SiglipVisionConfig from it
+        with tempfile.TemporaryDirectory() as tmp_dir_name:
+            config.save_pretrained(tmp_dir_name)
+            vision_config = SiglipVisionConfig.from_pretrained(tmp_dir_name)
+            self.assertDictEqual(config.vision_config.to_dict(), vision_config.to_dict())
+
+        # Save SiglipConfig and check if we can load SiglipTextConfig from it
+        with tempfile.TemporaryDirectory() as tmp_dir_name:
+            config.save_pretrained(tmp_dir_name)
+            text_config = SiglipTextConfig.from_pretrained(tmp_dir_name)
+            self.assertDictEqual(config.text_config.to_dict(), text_config.to_dict())
+
+    @slow
+    def test_model_from_pretrained(self):
+        model_name = "google/siglip-base-patch16-224"
+        model = SiglipModel.from_pretrained(model_name)
+        self.assertIsNotNone(model)
+
+
+class SiglipForImageClassificationModelTester(SiglipModelTester):
+    def __init__(self, parent):
+        super().__init__(parent)
+        self.batch_size = self.vision_model_tester.batch_size
+        self.num_hidden_layers = self.vision_model_tester.num_hidden_layers
+        self.hidden_size = self.vision_model_tester.hidden_size
+        self.seq_length = self.vision_model_tester.seq_length
+
+    def prepare_config_and_inputs(self):
+        _, pixel_values = self.vision_model_tester.prepare_config_and_inputs()
+        config = self.get_config()
+
+        return config, pixel_values
+
+    def prepare_config_and_inputs_for_common(self):
+        config_and_inputs = self.prepare_config_and_inputs()
+        config, pixel_values = config_and_inputs
+        inputs_dict = {"pixel_values": pixel_values}
+        return config, inputs_dict
+
+
+@require_torch
+class SiglipForImageClassificationModelTest(SiglipModelTesterMixin, PipelineTesterMixin, unittest.TestCase):
+    all_model_classes = (SiglipForImageClassification,) if is_torch_available() else ()
+    pipeline_model_mapping = {"image-classification": SiglipForImageClassification} if is_torch_available() else {}
+    fx_compatible = False
+    test_head_masking = False
+    test_pruning = False
+    test_resize_embeddings = False
+    test_attention_outputs = False
+    # MP works but offload doesn't work when the MultiheadAttention is offloaded
+    # TODO: One potential solution would be to add to set preload_module_classes = ["SiglipMultiheadAttentionPoolingHead"]
+    # in the dispatch_model function
+    test_cpu_offload = False
+    test_disk_offload_safetensors = False
+    test_disk_offload_bin = False
+    _is_composite = True
+
+    def setUp(self):
+        self.model_tester = SiglipForImageClassificationModelTester(self)
+
+    @unittest.skip(reason="SiglipForImageClassification does not support inputs_embeds")
+    def test_inputs_embeds(self):
+        pass
+
+    @unittest.skip(reason="SiglipForImageClassification does not support inputs_embeds")
+    def test_model_get_set_embeddings(self):
+        pass
+
+    @unittest.skip(reason="SiglipForImageClassification does not support gradient checkpointing yet")
+    def test_training_gradient_checkpointing(self):
+        pass
+
+    @unittest.skip(reason="SiglipForImageClassification does not support gradient checkpointing yet")
+    def test_training_gradient_checkpointing_use_reentrant(self):
+        pass
+
+    @unittest.skip(reason="SiglipForImageClassification does not support gradient checkpointing yet")
+    def test_training_gradient_checkpointing_use_reentrant_false(self):
+        pass
+
+    @unittest.skip(reason="Siglip uses a non-standard initialization scheme")
+    def test_initialization(self):
+        pass
+
+
+# We will verify our results on an image of cute cats
+def prepare_img():
+    url = "http://images.cocodataset.org/val2017/000000039769.jpg"
+    image = Image.open(requests.get(url, stream=True).raw)
+    return image
+
+
+@require_vision
+@require_torch
+class SiglipModelIntegrationTest(unittest.TestCase):
+    @slow
+    def test_inference(self):
+        model_name = "google/siglip-base-patch16-224"
+        model = SiglipModel.from_pretrained(model_name).to(torch_device)
+        processor = SiglipProcessor.from_pretrained(model_name)
+
+        image = prepare_img()
+        inputs = processor(
+            text=["a photo of 2 cats", "a photo of 2 dogs"], images=image, padding="max_length", return_tensors="pt"
+        ).to(torch_device)
+
+        # forward pass
+        with torch.no_grad():
+            outputs = model(**inputs)
+            logits_per_image = outputs.logits_per_image
+            logits_per_text = outputs.logits_per_text
+
+        # verify the logits
+        self.assertEqual(
+            logits_per_image.shape,
+            torch.Size((inputs.pixel_values.shape[0], inputs.input_ids.shape[0])),
+        )
+        self.assertEqual(
+            logits_per_text.shape,
+            torch.Size((inputs.input_ids.shape[0], inputs.pixel_values.shape[0])),
+        )
+
+        expected_logits = torch.tensor([[-0.7567, -10.3354]], device=torch_device)
+
+        torch.testing.assert_close(outputs.logits_per_image, expected_logits, rtol=1e-3, atol=1e-3)
+
+        # verify the probs
+        probs = torch.sigmoid(logits_per_image)  # these are the probabilities
+        expected_probs = torch.tensor([[3.1937e-01, 3.2463e-05]], device=torch_device)
+        torch.testing.assert_close(probs, expected_probs, rtol=1e-3, atol=1e-3)
+
+    @slow
+    def test_inference_interpolate_pos_encoding(self):
+        model_name = "google/siglip-base-patch16-224"
+        model = SiglipModel.from_pretrained(model_name).to(torch_device)
+
+        # 640 x 480 image
+        image = Image.open("./tests/fixtures/tests_samples/COCO/000000039769.png")
+        processor = SiglipProcessor.from_pretrained(model_name, do_resize=False, size={"height": 480, "width": 640})
+
+        inputs = processor(text="what's in the image", images=image, return_tensors="pt").to(torch_device)
+
+        # forward pass
+        with torch.no_grad():
+            outputs = model(**inputs, interpolate_pos_encoding=True)
+
+        # verify the shape
+        # patch size = 16
+        # batch size 1, (640/16) * (480/16) = 1200 patches, 768 hidden size
+        expected_shape = torch.Size((1, 1200, 768))
+
+        self.assertEqual(outputs.vision_model_output.last_hidden_state.shape, expected_shape)

transformers/tests/models/siglip/test_tokenization_siglip.py

@@ -0,0 +1,445 @@
+# Copyright 2024 The HuggingFace Inc. team.
+#
+# 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 json
+import os
+import tempfile
+import unittest
+from functools import cached_property
+
+from transformers import SPIECE_UNDERLINE, AddedToken, BatchEncoding, SiglipTokenizer
+from transformers.testing_utils import get_tests_dir, require_sentencepiece, require_tokenizers, slow
+
+from ...test_tokenization_common import TokenizerTesterMixin
+
+
+SAMPLE_VOCAB = get_tests_dir("fixtures/test_sentencepiece.model")
+
+
+@require_sentencepiece
+@require_tokenizers
+class SiglipTokenizationTest(TokenizerTesterMixin, unittest.TestCase):
+    from_pretrained_id = "google/siglip-base-patch16-224"
+    tokenizer_class = SiglipTokenizer
+    test_rust_tokenizer = False
+    test_sentencepiece = True
+    test_sentencepiece_ignore_case = True
+
+    @classmethod
+    def setUpClass(cls):
+        super().setUpClass()
+
+        # We have a SentencePiece fixture for testing
+        tokenizer = SiglipTokenizer(SAMPLE_VOCAB)
+        tokenizer.save_pretrained(cls.tmpdirname)
+
+    # Copied from tests.models.t5.test_tokenization_t5.T5TokenizationTest.test_convert_token_and_id with T5->Siglip
+    def test_convert_token_and_id(self):
+        """Test ``_convert_token_to_id`` and ``_convert_id_to_token``."""
+        token = "<s>"
+        token_id = 1
+
+        self.assertEqual(self.get_tokenizer()._convert_token_to_id(token), token_id)
+        self.assertEqual(self.get_tokenizer()._convert_id_to_token(token_id), token)
+
+    def test_get_vocab(self):
+        vocab_keys = list(self.get_tokenizer().get_vocab().keys())
+
+        self.assertEqual(vocab_keys[0], "<unk>")
+        self.assertEqual(vocab_keys[1], "<s>")
+
+    def test_full_tokenizer(self):
+        tokenizer = SiglipTokenizer(SAMPLE_VOCAB)
+
+        tokens = tokenizer.tokenize("This is a test")
+        self.assertListEqual(tokens, ["▁this", "▁is", "▁a", "▁t", "est"])
+
+        self.assertListEqual(tokenizer.convert_tokens_to_ids(tokens), [66, 46, 10, 170, 382])
+
+        tokens = tokenizer.tokenize("I was born in 92000, and this is falsé.")
+        self.assertListEqual(
+            tokens,
+            [
+                SPIECE_UNDERLINE,
+                "i",
+                SPIECE_UNDERLINE + "was",
+                SPIECE_UNDERLINE + "b",
+                "or",
+                "n",
+                SPIECE_UNDERLINE + "in",
+                SPIECE_UNDERLINE + "",
+                "9",
+                "2",
+                "0",
+                "0",
+                "0",
+                SPIECE_UNDERLINE + "and",
+                SPIECE_UNDERLINE + "this",
+                SPIECE_UNDERLINE + "is",
+                SPIECE_UNDERLINE + "f",
+                "al",
+                "s",
+                "é",
+            ],
+        )
+        ids = tokenizer.convert_tokens_to_ids(tokens)
+        self.assertListEqual(ids, [7, 23, 21, 84, 55, 24, 19, 7, 0, 602, 347, 347, 347, 12, 66, 46, 72, 80, 6, 0])
+
+        back_tokens = tokenizer.convert_ids_to_tokens(ids)
+        self.assertListEqual(
+            back_tokens,
+            [
+                SPIECE_UNDERLINE,
+                "i",
+                SPIECE_UNDERLINE + "was",
+                SPIECE_UNDERLINE + "b",
+                "or",
+                "n",
+                SPIECE_UNDERLINE + "in",
+                SPIECE_UNDERLINE + "",
+                "<unk>",
+                "2",
+                "0",
+                "0",
+                "0",
+                SPIECE_UNDERLINE + "and",
+                SPIECE_UNDERLINE + "this",
+                SPIECE_UNDERLINE + "is",
+                SPIECE_UNDERLINE + "f",
+                "al",
+                "s",
+                "<unk>",
+            ],
+        )
+
+    @cached_property
+    def siglip_tokenizer(self):
+        return SiglipTokenizer.from_pretrained("google/siglip-base-patch16-224")
+
+    @classmethod
+    def get_tokenizer(cls, pretrained_name=None, **kwargs) -> SiglipTokenizer:
+        pretrained_name = pretrained_name or cls.tmpdirname
+        return cls.tokenizer_class.from_pretrained(pretrained_name, **kwargs)
+
+    # Copied from tests.models.t5.test_tokenization_t5.T5TokenizationTest.test_rust_and_python_full_tokenizers with T5->Siglip
+    def test_rust_and_python_full_tokenizers(self):
+        if not self.test_rust_tokenizer:
+            self.skipTest(reason="test_rust_tokenizer is set to False")
+
+        tokenizer = self.get_tokenizer()
+        rust_tokenizer = self.get_rust_tokenizer()
+
+        sequence = "I was born in 92000, and this is falsé."
+
+        tokens = tokenizer.tokenize(sequence)
+        rust_tokens = rust_tokenizer.tokenize(sequence)
+        self.assertListEqual(tokens, rust_tokens)
+
+        ids = tokenizer.encode(sequence, add_special_tokens=False)
+        rust_ids = rust_tokenizer.encode(sequence, add_special_tokens=False)
+        self.assertListEqual(ids, rust_ids)
+
+        rust_tokenizer = self.get_rust_tokenizer()
+        ids = tokenizer.encode(sequence)
+        rust_ids = rust_tokenizer.encode(sequence)
+        self.assertListEqual(ids, rust_ids)
+
+    def test_eos_treatment(self):
+        tokenizer = self.siglip_tokenizer
+        batch_with_eos_added = tokenizer(["hi</s>", "I went to the gym</s>", "</s>"])
+        batch_without_eos_added = tokenizer(["hi", "I went to the gym", ""])
+        self.assertListEqual(batch_with_eos_added["input_ids"], batch_without_eos_added["input_ids"])
+
+    def test_prepare_batch(self):
+        tokenizer = self.siglip_tokenizer
+        src_text = ["A long paragraph for summarization.", "Another paragraph for summarization."]
+        expected_src_tokens = [262, 266, 476, 8532, 270, 4460, 3949, 1682, tokenizer.eos_token_id]
+        batch = tokenizer(src_text, padding=True, return_tensors="pt")
+        self.assertIsInstance(batch, BatchEncoding)
+
+        result = list(batch.input_ids.numpy()[0])
+
+        self.assertListEqual(expected_src_tokens, result)
+
+        self.assertEqual((2, 9), batch.input_ids.shape)
+
+    def test_empty_target_text(self):
+        tokenizer = self.siglip_tokenizer
+        src_text = ["A long paragraph for summarization.", "Another paragraph for summarization."]
+        batch = tokenizer(src_text, padding=True, return_tensors="pt")
+        # check if input_ids are returned and no decoder_input_ids
+        self.assertIn("input_ids", batch)
+        self.assertNotIn("decoder_input_ids", batch)
+        self.assertNotIn("decoder_attention_mask", batch)
+
+    def test_max_length(self):
+        tokenizer = self.siglip_tokenizer
+        tgt_text = ["Summary of the text.", "Another summary."]
+        targets = tokenizer(
+            text_target=tgt_text, max_length=32, padding="max_length", truncation=True, return_tensors="pt"
+        )
+        self.assertEqual(32, targets["input_ids"].shape[1])
+
+    def test_eos_in_input(self):
+        tokenizer = self.siglip_tokenizer
+        src_text = ["A long paragraph for summarization. </s>"]
+        tgt_text = ["Summary of the text. </s>"]
+        expected_src_tokens = [262, 266, 476, 8532, 270, 4460, 3949, 1682, 1]
+        expected_tgt_tokens = [6254, 267, 260, 1443, 1]
+
+        batch = tokenizer(src_text, text_target=tgt_text)
+
+        self.assertEqual(expected_src_tokens, batch["input_ids"][0])
+        self.assertEqual(expected_tgt_tokens, batch["labels"][0])
+
+    @unittest.skip(reason="SiglipTokenizer strips the punctuation")
+    def test_subword_regularization_tokenizer(self):
+        pass
+
+    @unittest.skip(reason="SiglipTokenizer strips the punctuation")
+    def test_pickle_subword_regularization_tokenizer(self):
+        pass
+
+    # Copied from tests.models.t5.test_tokenization_t5.T5TokenizationTest.test_special_tokens_initialization with T5->Siglip
+    def test_special_tokens_initialization(self):
+        for tokenizer, pretrained_name, kwargs in self.tokenizers_list:
+            with self.subTest(f"{tokenizer.__class__.__name__} ({pretrained_name})"):
+                added_tokens = [f"<extra_id_{i}>" for i in range(100)] + [AddedToken("<special>", lstrip=True)]
+
+                tokenizer_r = self.get_rust_tokenizer(
+                    pretrained_name, additional_special_tokens=added_tokens, **kwargs
+                )
+                tokenizer_cr = self.get_rust_tokenizer(
+                    pretrained_name, additional_special_tokens=added_tokens, **kwargs, from_slow=True
+                )
+                tokenizer_p = self.tokenizer_class.from_pretrained(
+                    pretrained_name, additional_special_tokens=added_tokens, **kwargs
+                )
+
+                p_output = tokenizer_p.encode("Hey this is a <special> token")
+                r_output = tokenizer_r.encode("Hey this is a <special> token")
+                cr_output = tokenizer_cr.encode("Hey this is a <special> token")
+
+                special_token_id = tokenizer_r.encode("<special>", add_special_tokens=False)[0]
+
+                self.assertEqual(p_output, r_output)
+                self.assertEqual(cr_output, r_output)
+                self.assertTrue(special_token_id in p_output)
+                self.assertTrue(special_token_id in r_output)
+                self.assertTrue(special_token_id in cr_output)
+
+    # Copied from tests.models.t5.test_tokenization_t5.T5TokenizationTest.test_special_tokens_initialization_with_non_empty_additional_special_tokens with T5->Siglip
+    def test_special_tokens_initialization_with_non_empty_additional_special_tokens(self):
+        tokenizer_list = []
+        if self.test_slow_tokenizer:
+            tokenizer_list.append((self.tokenizer_class, self.get_tokenizer()))
+
+        if self.test_rust_tokenizer:
+            tokenizer_list.append((self.rust_tokenizer_class, self.get_rust_tokenizer()))
+
+        for tokenizer_class, tokenizer_utils in tokenizer_list:
+            with tempfile.TemporaryDirectory() as tmp_dir:
+                tokenizer_utils.save_pretrained(tmp_dir)
+
+                with open(os.path.join(tmp_dir, "special_tokens_map.json"), encoding="utf-8") as json_file:
+                    special_tokens_map = json.load(json_file)
+
+                with open(os.path.join(tmp_dir, "tokenizer_config.json"), encoding="utf-8") as json_file:
+                    tokenizer_config = json.load(json_file)
+
+                added_tokens_extra_ids = [f"<extra_id_{i}>" for i in range(100)]
+
+                special_tokens_map["additional_special_tokens"] = added_tokens_extra_ids + [
+                    "an_additional_special_token"
+                ]
+                tokenizer_config["additional_special_tokens"] = added_tokens_extra_ids + [
+                    "an_additional_special_token"
+                ]
+
+                with open(os.path.join(tmp_dir, "special_tokens_map.json"), "w", encoding="utf-8") as outfile:
+                    json.dump(special_tokens_map, outfile)
+                with open(os.path.join(tmp_dir, "tokenizer_config.json"), "w", encoding="utf-8") as outfile:
+                    json.dump(tokenizer_config, outfile)
+
+                # the following checks allow us to verify that our test works as expected, i.e. that the tokenizer takes
+                # into account the new value of additional_special_tokens given in the "tokenizer_config.json" and
+                # "special_tokens_map.json" files
+                tokenizer_without_change_in_init = tokenizer_class.from_pretrained(
+                    tmp_dir,
+                )
+                self.assertIn(
+                    "an_additional_special_token", tokenizer_without_change_in_init.additional_special_tokens
+                )
+                # self.assertIn("an_additional_special_token",tokenizer_without_change_in_init.get_vocab()) # BySiglipTokenization no vocab
+                self.assertEqual(
+                    ["an_additional_special_token"],
+                    tokenizer_without_change_in_init.convert_ids_to_tokens(
+                        tokenizer_without_change_in_init.convert_tokens_to_ids(["an_additional_special_token"])
+                    ),
+                )
+
+                # Now we test that we can change the value of additional_special_tokens in the from_pretrained
+                new_added_tokens = added_tokens_extra_ids + [AddedToken("a_new_additional_special_token", lstrip=True)]
+                tokenizer = tokenizer_class.from_pretrained(
+                    tmp_dir,
+                    additional_special_tokens=new_added_tokens,
+                )
+
+                self.assertIn("a_new_additional_special_token", tokenizer.additional_special_tokens)
+                self.assertEqual(
+                    ["a_new_additional_special_token"],
+                    tokenizer.convert_ids_to_tokens(
+                        tokenizer.convert_tokens_to_ids(["a_new_additional_special_token"])
+                    ),
+                )
+
+    def test_sentencepiece_tokenize_and_convert_tokens_to_string(self):
+        """Test ``_tokenize`` and ``convert_tokens_to_string``."""
+        if not self.test_sentencepiece:
+            self.skipTest(reason="test_sentencepiece is set to False")
+
+        tokenizer = self.get_tokenizer()
+        text = "This is text to test the tokenizer."
+
+        if self.test_sentencepiece_ignore_case:
+            text = text.lower()
+
+        tokens = tokenizer.tokenize(text)
+
+        self.assertTrue(len(tokens) > 0)
+
+        # check if converting back to original text works
+        reverse_text = tokenizer.convert_tokens_to_string(tokens)
+
+        if self.test_sentencepiece_ignore_case:
+            reverse_text = reverse_text.lower()
+
+        expected_text = "this is text to test the tokenizer"
+        self.assertEqual(reverse_text, expected_text)
+
+        special_tokens = tokenizer.all_special_tokens
+        special_tokens_string = tokenizer.convert_tokens_to_string(special_tokens)
+        for special_token in special_tokens:
+            self.assertIn(special_token, special_tokens_string)
+
+        if self.test_rust_tokenizer:
+            rust_tokenizer = self.get_rust_tokenizer()
+            special_tokens_string_rust = rust_tokenizer.convert_tokens_to_string(special_tokens)
+            self.assertEqual(special_tokens_string, special_tokens_string_rust)
+
+    @slow
+    def test_tokenizer_integration(self):
+        tokenizer = SiglipTokenizer.from_pretrained("google/siglip-base-patch16-224")
+
+        # fmt: off
+        texts = [
+            'the real mountain view',
+            'Zürich',
+            'San Francisco',
+            'a picture of a laptop with the lockscreen on, a cup of cappucino, salt and pepper grinders. The view through the window reveals lake Zürich and the Alps in the background of the city.',
+        ]
+
+        expected_input_ids = [
+            [260, 638, 3293, 870, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1],
+            [262, 761, 5879, 5345, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1],
+            [262, 264, 452, 20563, 15949, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1],
+            [262, 266, 1357, 267, 262, 266, 4429, 275, 260, 3940, 6360, 277, 262, 266, 3064, 267, 3549, 388, 16538, 296, 298, 2617, 263, 4869, 14998, 264, 260, 870, 393, 260, 1710, 7958, 4324, 262, 761, 5879, 5345, 263, 260, 1518, 388, 264, 268, 260, 1970, 267, 260, 741, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1],
+        ]
+        # fmt: on
+
+        for text, expected in zip(texts, expected_input_ids):
+            input_ids = tokenizer(text, padding="max_length").input_ids
+            self.assertListEqual(input_ids, expected)
+
+    def test_some_edge_cases(self):
+        tokenizer = SiglipTokenizer.from_pretrained("google/siglip-base-patch16-224", legacy=False)
+
+        sp_tokens = tokenizer.sp_model.encode("</s>>", out_type=str)
+        self.assertEqual(sp_tokens, ["</", "s", ">", ">"])
+        tokens = tokenizer.tokenize("</s>>")
+        self.assertNotEqual(sp_tokens, tokens)
+        self.assertEqual(tokens, ["</s>"])
+
+        tokens = tokenizer.tokenize("")
+        self.assertEqual(tokens, [])
+        self.assertEqual(tokens, tokenizer.sp_model.encode("", out_type=str))
+
+        tokens = tokenizer.tokenize(" ")
+        self.assertEqual(tokens, [])
+        self.assertEqual(tokens, tokenizer.sp_model.encode(" ", out_type=str))
+
+        tokens = tokenizer.tokenize("▁")
+        self.assertEqual(tokens, [])
+        self.assertEqual(tokens, tokenizer.sp_model.encode("▁", out_type=str))
+
+        tokens = tokenizer.tokenize(" ▁")
+        self.assertEqual(tokens, [])
+        self.assertEqual(tokens, tokenizer.sp_model.encode("▁", out_type=str))
+
+
+@require_sentencepiece
+@require_tokenizers
+class CommonSpmIntegrationTests(unittest.TestCase):
+    """
+    A class that regroups important test to make sure that we properly handle the special tokens.
+    """
+
+    @classmethod
+    def setUpClass(cls):
+        tokenizer = SiglipTokenizer(SAMPLE_VOCAB, extra_ids=0, legacy=False)
+        tokenizer.add_special_tokens(
+            {"additional_special_tokens": [AddedToken("<extra_id_0>", rstrip=False, lstrip=False)]}
+        )
+        cls.tokenizer = tokenizer
+
+    def test_add_dummy_prefix(self):
+        # make sure `'▁'` is prepended, and outputs match sp_model's
+        # `sentencepiece.NormalizerSpec.add_dummy_prefix` attribute
+        input_ids = self.tokenizer.encode(". Hello", add_special_tokens=False)
+        self.assertEqual(input_ids, [37, 86, 20])
+        self.assertEqual(input_ids, [37, 86, 20])
+        tokens = self.tokenizer.tokenize(". Hello")
+        self.assertEqual(tokens, ["▁he", "ll", "o"])
+
+        tokens = self.tokenizer.tokenize("")
+        self.assertEqual(tokens, [])
+        self.assertEqual(tokens, self.tokenizer.sp_model.encode("", out_type=str))
+
+        tokens = self.tokenizer.tokenize(" ")
+        self.assertEqual(tokens, [])
+        self.assertEqual(tokens, self.tokenizer.sp_model.encode(" ", out_type=str))
+
+        tokens = self.tokenizer.tokenize("▁")
+        self.assertEqual(tokens, [])
+        self.assertEqual(tokens, self.tokenizer.sp_model.encode("▁", out_type=str))
+
+    def test_remove_extra_whitespaces(self):
+        # make sure the extra spaces are eaten
+        # sentencepiece.NormalizerSpec.remove_extra_whitespaces attribute
+        input_ids = self.tokenizer.encode("       . Hello", add_special_tokens=False)
+        self.assertEqual(input_ids, [37, 86, 20])
+        self.assertEqual(input_ids, [37, 86, 20])
+        tokens = self.tokenizer.tokenize(" . Hello")
+        self.assertEqual(tokens, ["▁he", "ll", "o"])
+
+        # `'▁'` is also a whitespace
+        input_ids = self.tokenizer.encode("▁He is not")
+        self.assertEqual(input_ids, [37, 46, 44, 2])
+        tokens = self.tokenizer.tokenize("▁He is not")
+        self.assertEqual(tokens, ["▁he", "▁is", "▁not"])  # no extra space added
+
+        input_ids = self.tokenizer.encode("▁He is not             ▁He")
+        self.assertEqual(input_ids, [37, 46, 44, 37, 2])
+        tokens = self.tokenizer.tokenize("▁He is not              ▁He")
+        self.assertEqual(tokens, ["▁he", "▁is", "▁not", "▁he"])  # spaces are eaten by spm even if not start