Fix : HQQ config when hqq not available (#35655)

* fix

* make style

* adding require_hqq

* make style

src/transformers/testing_utils.py

@@ -87,6 +87,7 @@ from .utils import (
     is_gguf_available,
     is_grokadamw_available,
     is_hadamard_available,
+    is_hqq_available,
     is_ipex_available,
     is_jieba_available,
     is_jinja_available,
@@ -1213,6 +1214,13 @@ def require_auto_gptq(test_case):
     return unittest.skipUnless(is_auto_gptq_available(), "test requires auto-gptq")(test_case)
 
 
+def require_hqq(test_case):
+    """
+    Decorator for hqq dependency
+    """
+    return unittest.skipUnless(is_hqq_available(), "test requires hqq")(test_case)
+
+
 def require_auto_awq(test_case):
     """
     Decorator for auto_awq dependency

src/transformers/utils/quantization_config.py

@@ -224,6 +224,10 @@ class HqqConfig(QuantizationConfigMixin):
     ):
         if is_hqq_available():
             from hqq.core.quantize import BaseQuantizeConfig as HQQBaseQuantizeConfig
+        else:
+            raise ImportError(
+                "A valid HQQ version (>=0.2.1) is not available. Please follow the instructions to install it: `https://github.com/mobiusml/hqq/`."
+            )
 
         for deprecated_key in ["quant_zero", "quant_scale", "offload_meta"]:
             if deprecated_key in kwargs:

tests/quantization/hqq/test_hqq.py

@@ -19,6 +19,7 @@ import unittest
 from transformers import AutoModelForCausalLM, AutoTokenizer, HqqConfig
 from transformers.testing_utils import (
     require_accelerate,
+    require_hqq,
     require_torch_gpu,
     require_torch_multi_gpu,
     slow,
@@ -86,6 +87,7 @@ MODEL_ID = "TinyLlama/TinyLlama-1.1B-Chat-v1.0"
 
 
 @require_torch_gpu
+@require_hqq
 class HqqConfigTest(unittest.TestCase):
     def test_to_dict(self):
         """
@@ -100,6 +102,7 @@ class HqqConfigTest(unittest.TestCase):
 @slow
 @require_torch_gpu
 @require_accelerate
+@require_hqq
 class HQQTest(unittest.TestCase):
     def tearDown(self):
         cleanup()
@@ -122,6 +125,7 @@ class HQQTest(unittest.TestCase):
 @require_torch_gpu
 @require_torch_multi_gpu
 @require_accelerate
+@require_hqq
 class HQQTestMultiGPU(unittest.TestCase):
     def tearDown(self):
         cleanup()
@@ -144,6 +148,7 @@ class HQQTestMultiGPU(unittest.TestCase):
 @slow
 @require_torch_gpu
 @require_accelerate
+@require_hqq
 class HQQSerializationTest(unittest.TestCase):
     def tearDown(self):
         cleanup()