Unpin version and make ground-truth values dependent on version

requirements/requirements-llm.txt

@@ -1,3 +1,3 @@
 # optimum-amd[brevitas] @ git+https://github.com/huggingface/optimum-amd.git@main
 tqdm
-transformers[sentencepiece]>=4.46.0
+transformers

tests/brevitas_examples/test_llm.py

@@ -14,6 +14,7 @@
 import pytest
 import pytest_cases
 import torch
+import transformers
 
 from brevitas import config
 from brevitas import torch_version
@@ -40,6 +41,10 @@ def allexact(x, y):
     return np.allclose(x, y, rtol=0.0, atol=0.0, equal_nan=False)
 
 
+def transformers_version_ge(required_version: str):
+    return version.parse(required_version) >= version.parse(transformers.__version__)
+
+
 # Check that all args in args are used
 def validate_args(args):
     a = vars(args)
@@ -207,14 +212,14 @@ def test_small_models_toggle_run_args_pt_ge_2_4(
             "model": "hf-internal-testing/tiny-random-LlamaForCausalLM",
             "act_equalization": "fx",
             "bias_corr": True,
-            "float_ppl": 33312.0,  # 33239.5,
-            "quant_ppl": 33056.0},  # 33283.75390625},
+            "float_ppl": 33312.0 if transformers_version_ge('4.46.0') else 33239.5,
+            "quant_ppl": 33056.0 if transformers_version_ge('4.46.0') else 33283.75390625},
         {
             "model": "hf-internal-testing/tiny-random-MistralForCausalLM",
             "act_equalization": "layerwise",
             "gptq": True,
-            "float_ppl": 31056.0,  # 31274.05078125
-            "quant_ppl": 33056.0},])  # 33139.23046875},])
+            "float_ppl": 31056.0 if transformers_version_ge('4.46.0') else 31274.05078125,
+            "quant_ppl": 33056.0 if transformers_version_ge('4.46.0') else 33139.23046875},])
 def acc_args_and_acc(default_run_args, request):
     args = default_run_args
     run_dict = request.param