[tests] Adds more tests + fix failing tests (#238)

* adds more tests

- refactor tests
- add enc-dec tests
- skips generate tests for non-lora adapters

* rm unneeded file

* fix tests

* fix

* more checks

* fix issue
This commit is contained in:
Younes Belkada
2023-04-05 10:17:26 +02:00
committed by GitHub
parent 127a74baa2
commit deff03f2c2
5 changed files with 381 additions and 249 deletions
+20 -5
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@@ -270,11 +270,26 @@ class LoraModel(torch.nn.Module):
# manually merge if not merged
if not target.merged:
# merge weights per: https://arxiv.org/pdf/2106.09685.pdf / page 4
if target.r > 0:
target.weight.data += (
transpose(target.lora_B.weight @ target.lora_A.weight, target.fan_in_fan_out)
* target.scaling
).to(target.weight.dtype)
if isinstance(target, Linear):
if target.r > 0:
target.weight.data += (
transpose(target.lora_B.weight @ target.lora_A.weight, target.fan_in_fan_out)
* target.scaling
).to(target.weight.dtype)
else:
if target.r > 0:
delta_w = (
F.conv1d(
target.lora_A.weight.data.unsqueeze(0),
target.lora_B.weight.data,
groups=sum(target.enable_lora),
)
.squeeze(0)
.transpose(-2, -1)
)
target.weight.data += transpose(
target.zero_pad(delta_w * target.scaling), not target.fan_in_fan_out
).to(target.weight.dtype)
target.merged = True
self._replace_module(parent, target_name, new_module, target)
+85
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@@ -0,0 +1,85 @@
# coding=utf-8
# Copyright 2023-present 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 unittest
import torch
from parameterized import parameterized
from transformers import AutoModelForCausalLM
from .testing_common import PeftCommonTester, PeftTestConfigManager
PEFT_DECODER_MODELS_TO_TEST = [
"hf-internal-testing/tiny-random-OPTForCausalLM",
"hf-internal-testing/tiny-random-GPTNeoXForCausalLM",
"hf-internal-testing/tiny-random-GPT2LMHeadModel",
"hf-internal-testing/tiny-random-BloomForCausalLM",
"hf-internal-testing/tiny-random-gpt_neo",
"hf-internal-testing/tiny-random-GPTJForCausalLM",
]
FULL_GRID = {
"model_ids": PEFT_DECODER_MODELS_TO_TEST,
"task_type": "CAUSAL_LM",
}
class PeftDecoderModelTester(unittest.TestCase, PeftCommonTester):
r"""
Test if the PeftModel behaves as expected. This includes:
- test if the model has the expected methods
We use parametrized.expand for debugging purposes to test each model individually.
"""
transformers_class = AutoModelForCausalLM
def prepare_inputs_for_testing(self):
input_ids = torch.tensor([[1, 1, 1], [1, 2, 1]]).to(self.torch_device)
attention_mask = torch.tensor([[1, 1, 1], [1, 0, 1]]).to(self.torch_device)
input_dict = {
"input_ids": input_ids,
"attention_mask": attention_mask,
}
return input_dict
@parameterized.expand(PeftTestConfigManager.get_grid_parameters(FULL_GRID))
def test_attributes_parametrized(self, test_name, model_id, config_cls, config_kwargs):
self._test_model_attr(model_id, config_cls, config_kwargs)
@parameterized.expand(PeftTestConfigManager.get_grid_parameters(FULL_GRID))
def test_prepare_for_training_parametrized(self, test_name, model_id, config_cls, config_kwargs):
self._test_prepare_for_training(model_id, config_cls, config_kwargs)
@parameterized.expand(PeftTestConfigManager.get_grid_parameters(FULL_GRID))
def test_save_pretrained(self, test_name, model_id, config_cls, config_kwargs):
self._test_save_pretrained(model_id, config_cls, config_kwargs)
@parameterized.expand(
PeftTestConfigManager.get_grid_parameters(
{
"model_ids": PEFT_DECODER_MODELS_TO_TEST,
"lora_kwargs": {"init_lora_weights": [False], "merge_weights": [False, True]},
"task_type": "CAUSAL_LM",
},
)
)
def test_merge_layers(self, test_name, model_id, config_cls, config_kwargs):
self._test_merge_layers(model_id, config_cls, config_kwargs)
@parameterized.expand(PeftTestConfigManager.get_grid_parameters(FULL_GRID))
def test_generate(self, test_name, model_id, config_cls, config_kwargs):
self._test_generate(model_id, config_cls, config_kwargs)
+88
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@@ -0,0 +1,88 @@
# coding=utf-8
# Copyright 2023-present 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 unittest
import torch
from parameterized import parameterized
from transformers import AutoModelForSeq2SeqLM
from .testing_common import PeftCommonTester, PeftTestConfigManager
PEFT_ENCODER_DECODER_MODELS_TO_TEST = [
"hf-internal-testing/tiny-random-T5ForConditionalGeneration",
"hf-internal-testing/tiny-random-BartForConditionalGeneration",
]
FULL_GRID = {"model_ids": PEFT_ENCODER_DECODER_MODELS_TO_TEST, "task_type": "SEQ_2_SEQ_LM"}
def skip_non_lora_or_pt(test_list):
r"""
Skip tests that are not lora or prefix tuning
"""
return [test for test in test_list if ("lora" in test[0] or "prefix_tuning" in test[0])]
class PeftEncoderDecoderModelTester(unittest.TestCase, PeftCommonTester):
r"""
Test if the PeftModel behaves as expected. This includes:
- test if the model has the expected methods
We use parametrized.expand for debugging purposes to test each model individually.
"""
transformers_class = AutoModelForSeq2SeqLM
def prepare_inputs_for_testing(self):
input_ids = torch.tensor([[1, 1, 1], [1, 2, 1]]).to(self.torch_device)
decoder_input_ids = torch.tensor([[1, 1, 1], [1, 2, 1]]).to(self.torch_device)
attention_mask = torch.tensor([[1, 1, 1], [1, 0, 1]]).to(self.torch_device)
input_dict = {
"input_ids": input_ids,
"decoder_input_ids": decoder_input_ids,
"attention_mask": attention_mask,
}
return input_dict
@parameterized.expand(PeftTestConfigManager.get_grid_parameters(FULL_GRID))
def test_attributes_parametrized(self, test_name, model_id, config_cls, config_kwargs):
self._test_model_attr(model_id, config_cls, config_kwargs)
@parameterized.expand(PeftTestConfigManager.get_grid_parameters(FULL_GRID))
def test_prepare_for_training_parametrized(self, test_name, model_id, config_cls, config_kwargs):
self._test_prepare_for_training(model_id, config_cls, config_kwargs)
@parameterized.expand(PeftTestConfigManager.get_grid_parameters(FULL_GRID))
def test_save_pretrained(self, test_name, model_id, config_cls, config_kwargs):
self._test_save_pretrained(model_id, config_cls, config_kwargs)
@parameterized.expand(
PeftTestConfigManager.get_grid_parameters(
{
"model_ids": PEFT_ENCODER_DECODER_MODELS_TO_TEST,
"lora_kwargs": {"init_lora_weights": [False], "merge_weights": [True, False]},
"task_type": "SEQ_2_SEQ_LM",
},
)
)
def test_merge_layers(self, test_name, model_id, config_cls, config_kwargs):
self._test_merge_layers(model_id, config_cls, config_kwargs)
# skip non lora models - generate does not work for prefix tuning, prompt tuning
@parameterized.expand(PeftTestConfigManager.get_grid_parameters(FULL_GRID, filter_params_func=skip_non_lora_or_pt))
def test_generate(self, test_name, model_id, config_cls, config_kwargs):
self._test_generate(model_id, config_cls, config_kwargs)
-238
View File
@@ -1,238 +0,0 @@
# coding=utf-8
# Copyright 2023-present 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 os
import tempfile
import unittest
import torch
from parameterized import parameterized
from transformers import AutoModelForCausalLM
from peft import (
PeftModel,
get_peft_model,
get_peft_model_state_dict,
prepare_model_for_int8_training,
)
from .testing_common import PeftTestConfigManager
PEFT_DECODER_MODELS_TO_TEST = [
"hf-internal-testing/tiny-random-OPTForCausalLM",
"hf-internal-testing/tiny-random-GPTNeoXForCausalLM",
"hf-internal-testing/tiny-random-GPT2LMHeadModel",
"hf-internal-testing/tiny-random-BloomForCausalLM",
"hf-internal-testing/tiny-random-gpt_neo",
"hf-internal-testing/tiny-random-GPTJForCausalLM",
]
FULL_GRID = {
"model_ids": PEFT_DECODER_MODELS_TO_TEST,
}
class PeftTestMixin:
torch_device = "cuda" if torch.cuda.is_available() else "cpu"
class PeftModelTester(unittest.TestCase, PeftTestMixin):
r"""
Test if the PeftModel behaves as expected. This includes:
- test if the model has the expected methods
We use parametrized.expand for debugging purposes to test each model individually.
"""
def _test_model_attr(self, model_id, config_cls, config_kwargs):
model = AutoModelForCausalLM.from_pretrained(model_id)
config = config_cls(
base_model_name_or_path=model_id,
**config_kwargs,
)
model = get_peft_model(model, config)
self.assertTrue(hasattr(model, "save_pretrained"))
self.assertTrue(hasattr(model, "from_pretrained"))
self.assertTrue(hasattr(model, "push_to_hub"))
@parameterized.expand(PeftTestConfigManager.get_grid_parameters(FULL_GRID))
def test_attributes_parametrized(self, test_name, model_id, config_cls, config_kwargs):
self._test_model_attr(model_id, config_cls, config_kwargs)
def _test_prepare_for_training(self, model_id, config_cls, config_kwargs):
model = AutoModelForCausalLM.from_pretrained(model_id).to(self.torch_device)
config = config_cls(
base_model_name_or_path=model_id,
**config_kwargs,
)
model = get_peft_model(model, config)
dummy_input = torch.LongTensor([[1, 1, 1]]).to(self.torch_device)
dummy_output = model.get_input_embeddings()(dummy_input)
self.assertTrue(not dummy_output.requires_grad)
# load with `prepare_model_for_int8_training`
model = AutoModelForCausalLM.from_pretrained(model_id).to(self.torch_device)
model = prepare_model_for_int8_training(model)
for param in model.parameters():
self.assertTrue(not param.requires_grad)
config = config_cls(
base_model_name_or_path=model_id,
**config_kwargs,
)
model = get_peft_model(model, config)
# For backward compatibility
if hasattr(model, "enable_input_require_grads"):
model.enable_input_require_grads()
else:
def make_inputs_require_grad(module, input, output):
output.requires_grad_(True)
model.get_input_embeddings().register_forward_hook(make_inputs_require_grad)
dummy_input = torch.LongTensor([[1, 1, 1]]).to(self.torch_device)
dummy_output = model.get_input_embeddings()(dummy_input)
self.assertTrue(dummy_output.requires_grad)
@parameterized.expand(PeftTestConfigManager.get_grid_parameters(FULL_GRID))
def test_prepare_for_training_parametrized(self, test_name, model_id, config_cls, config_kwargs):
self._test_prepare_for_training(model_id, config_cls, config_kwargs)
def _test_save_pretrained(self, model_id, config_cls, config_kwargs):
model = AutoModelForCausalLM.from_pretrained(model_id)
config = config_cls(
base_model_name_or_path=model_id,
**config_kwargs,
)
model = get_peft_model(model, config)
model = model.to(self.torch_device)
with tempfile.TemporaryDirectory() as tmp_dirname:
model.save_pretrained(tmp_dirname)
model_from_pretrained = AutoModelForCausalLM.from_pretrained(model_id)
model_from_pretrained = PeftModel.from_pretrained(model_from_pretrained, tmp_dirname)
# check if the state dicts are equal
state_dict = get_peft_model_state_dict(model)
state_dict_from_pretrained = get_peft_model_state_dict(model_from_pretrained)
# check if same keys
self.assertEqual(state_dict.keys(), state_dict_from_pretrained.keys())
# check if tensors equal
for key in state_dict.keys():
self.assertTrue(
torch.allclose(
state_dict[key].to(self.torch_device), state_dict_from_pretrained[key].to(self.torch_device)
)
)
# check if `adapter_model.bin` is present
self.assertTrue(os.path.exists(os.path.join(tmp_dirname, "adapter_model.bin")))
# check if `adapter_config.json` is present
self.assertTrue(os.path.exists(os.path.join(tmp_dirname, "adapter_config.json")))
# check if `pytorch_model.bin` is not present
self.assertFalse(os.path.exists(os.path.join(tmp_dirname, "pytorch_model.bin")))
# check if `config.json` is not present
self.assertFalse(os.path.exists(os.path.join(tmp_dirname, "config.json")))
@parameterized.expand(PeftTestConfigManager.get_grid_parameters(FULL_GRID))
def test_save_pretrained(self, test_name, model_id, config_cls, config_kwargs):
self._test_save_pretrained(model_id, config_cls, config_kwargs)
def _test_merge_layers(self, model_id, config_cls, config_kwargs):
model = AutoModelForCausalLM.from_pretrained(model_id)
config = config_cls(
base_model_name_or_path=model_id,
**config_kwargs,
)
model = get_peft_model(model, config)
model = model.to(self.torch_device)
if config.peft_type != "LORA":
with self.assertRaises(AttributeError):
model = model.merge_and_unload()
elif model.config.model_type == "gpt2":
with self.assertRaises(ValueError):
model = model.merge_and_unload()
else:
dummy_input = torch.LongTensor([[1, 2, 3, 2, 1]]).to(self.torch_device)
model.eval()
logits_lora = model(dummy_input)[0]
model = model.merge_and_unload()
logits_merged = model(dummy_input)[0]
transformers_model = AutoModelForCausalLM.from_pretrained(model_id).to(self.torch_device)
logits_transformers = transformers_model(dummy_input)[0]
self.assertTrue(torch.allclose(logits_lora, logits_merged, atol=1e-3, rtol=1e-3))
self.assertFalse(torch.allclose(logits_merged, logits_transformers, atol=1e-3, rtol=1e-3))
with tempfile.TemporaryDirectory() as tmp_dirname:
model.save_pretrained(tmp_dirname)
model_from_pretrained = AutoModelForCausalLM.from_pretrained(tmp_dirname).to(self.torch_device)
logits_merged_from_pretrained = model_from_pretrained(dummy_input)[0]
self.assertTrue(torch.allclose(logits_merged, logits_merged_from_pretrained, atol=1e-3, rtol=1e-3))
@parameterized.expand(
PeftTestConfigManager.get_grid_parameters(
{
"model_ids": PEFT_DECODER_MODELS_TO_TEST,
"lora_kwargs": {"init_lora_weights": [False], "merge_weights": [False, True]},
},
)
)
def test_merge_layers(self, test_name, model_id, config_cls, config_kwargs):
self._test_merge_layers(model_id, config_cls, config_kwargs)
def _test_generate(self, model_id, config_cls, config_kwargs):
model = AutoModelForCausalLM.from_pretrained(model_id)
config = config_cls(
base_model_name_or_path=model_id,
**config_kwargs,
)
model = get_peft_model(model, config)
model = model.to(self.torch_device)
input_ids = torch.LongTensor([[1, 1, 1], [2, 1, 2]]).to(self.torch_device)
attention_mask = torch.LongTensor([[1, 1, 1], [1, 0, 1]]).to(self.torch_device)
# check if `generate` works
_ = model.generate(input_ids=input_ids, attention_mask=attention_mask)
with self.assertRaises(TypeError):
# check if `generate` raises an error if no positional arguments are passed
_ = model.generate(input_ids, attention_mask=attention_mask)
@parameterized.expand(PeftTestConfigManager.get_grid_parameters(FULL_GRID))
def test_generate(self, test_name, model_id, config_cls, config_kwargs):
self._test_generate(model_id, config_cls, config_kwargs)
+188 -6
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@@ -12,13 +12,21 @@
# 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 os
import tempfile
from collections import OrderedDict
import torch
from peft import (
LoraConfig,
PeftModel,
PrefixTuningConfig,
PromptEncoderConfig,
PromptTuningConfig,
get_peft_model,
get_peft_model_state_dict,
prepare_model_for_int8_training,
)
@@ -35,20 +43,16 @@ CONFIG_TESTING_KWARGS = (
"target_modules": None,
"lora_dropout": 0.05,
"bias": "none",
"task_type": "CAUSAL_LM",
},
{
"num_virtual_tokens": 10,
"task_type": "CAUSAL_LM",
},
{
"num_virtual_tokens": 10,
"encoder_hidden_size": 32,
"task_type": "CAUSAL_LM",
},
{
"num_virtual_tokens": 10,
"task_type": "CAUSAL_LM",
},
)
@@ -92,6 +96,7 @@ class ClassInstantier(OrderedDict):
"""
generated_tests = []
model_list = grid_parameters["model_ids"]
task_type = grid_parameters["task_type"] if "task_type" in grid_parameters else None
for model_id in model_list:
for key, value in self.items():
@@ -101,9 +106,16 @@ class ClassInstantier(OrderedDict):
for current_key, current_value in grid_parameters[f"{key}_kwargs"].items():
for kwarg in current_value:
current_peft_config.update({current_key: kwarg})
peft_configs.append(current_peft_config)
if task_type is not None:
current_peft_config.update({"task_type": task_type})
peft_configs.append(current_peft_config.copy())
else:
peft_configs = [value[1].copy()]
current_peft_config = value[1].copy()
if task_type is not None:
current_peft_config.update({"task_type": task_type})
peft_configs = [current_peft_config]
for peft_config in peft_configs:
generated_tests.append((f"test_{model_id}_{key}", model_id, value[0], peft_config))
@@ -115,3 +127,173 @@ class ClassInstantier(OrderedDict):
PeftTestConfigManager = ClassInstantier(CLASSES_MAPPING)
class PeftCommonTester:
r"""
A large testing suite for testing common functionality of the PEFT models.
Attributes:
torch_device (`torch.device`):
The device on which the tests will be run.
transformers_class (`transformers.PreTrainedModel`):
The transformers class that is being tested.
"""
torch_device = "cuda" if torch.cuda.is_available() else "cpu"
transformers_class = None
def prepare_inputs_for_common(self):
raise NotImplementedError
def _test_model_attr(self, model_id, config_cls, config_kwargs):
model = self.transformers_class.from_pretrained(model_id)
config = config_cls(
base_model_name_or_path=model_id,
**config_kwargs,
)
model = get_peft_model(model, config)
self.assertTrue(hasattr(model, "save_pretrained"))
self.assertTrue(hasattr(model, "from_pretrained"))
self.assertTrue(hasattr(model, "push_to_hub"))
def _test_prepare_for_training(self, model_id, config_cls, config_kwargs):
model = self.transformers_class.from_pretrained(model_id).to(self.torch_device)
config = config_cls(
base_model_name_or_path=model_id,
**config_kwargs,
)
model = get_peft_model(model, config)
dummy_input = self.prepare_inputs_for_testing()
dummy_output = model.get_input_embeddings()(dummy_input["input_ids"])
self.assertTrue(not dummy_output.requires_grad)
# load with `prepare_model_for_int8_training`
model = self.transformers_class.from_pretrained(model_id).to(self.torch_device)
model = prepare_model_for_int8_training(model)
for param in model.parameters():
self.assertTrue(not param.requires_grad)
config = config_cls(
base_model_name_or_path=model_id,
**config_kwargs,
)
model = get_peft_model(model, config)
# For backward compatibility
if hasattr(model, "enable_input_require_grads"):
model.enable_input_require_grads()
else:
def make_inputs_require_grad(module, input, output):
output.requires_grad_(True)
model.get_input_embeddings().register_forward_hook(make_inputs_require_grad)
dummy_input = self.prepare_inputs_for_testing()
dummy_output = model.get_input_embeddings()(dummy_input["input_ids"])
self.assertTrue(dummy_output.requires_grad)
def _test_save_pretrained(self, model_id, config_cls, config_kwargs):
model = self.transformers_class.from_pretrained(model_id)
config = config_cls(
base_model_name_or_path=model_id,
**config_kwargs,
)
model = get_peft_model(model, config)
model = model.to(self.torch_device)
with tempfile.TemporaryDirectory() as tmp_dirname:
model.save_pretrained(tmp_dirname)
model_from_pretrained = self.transformers_class.from_pretrained(model_id)
model_from_pretrained = PeftModel.from_pretrained(model_from_pretrained, tmp_dirname)
# check if the state dicts are equal
state_dict = get_peft_model_state_dict(model)
state_dict_from_pretrained = get_peft_model_state_dict(model_from_pretrained)
# check if same keys
self.assertEqual(state_dict.keys(), state_dict_from_pretrained.keys())
# check if tensors equal
for key in state_dict.keys():
self.assertTrue(
torch.allclose(
state_dict[key].to(self.torch_device), state_dict_from_pretrained[key].to(self.torch_device)
)
)
# check if `adapter_model.bin` is present
self.assertTrue(os.path.exists(os.path.join(tmp_dirname, "adapter_model.bin")))
# check if `adapter_config.json` is present
self.assertTrue(os.path.exists(os.path.join(tmp_dirname, "adapter_config.json")))
# check if `pytorch_model.bin` is not present
self.assertFalse(os.path.exists(os.path.join(tmp_dirname, "pytorch_model.bin")))
# check if `config.json` is not present
self.assertFalse(os.path.exists(os.path.join(tmp_dirname, "config.json")))
def _test_merge_layers(self, model_id, config_cls, config_kwargs):
model = self.transformers_class.from_pretrained(model_id)
config = config_cls(
base_model_name_or_path=model_id,
**config_kwargs,
)
model = get_peft_model(model, config)
model = model.to(self.torch_device)
if config.peft_type != "LORA":
with self.assertRaises(AttributeError):
model = model.merge_and_unload()
elif model.config.model_type == "gpt2":
with self.assertRaises(ValueError):
model = model.merge_and_unload()
else:
dummy_input = self.prepare_inputs_for_testing()
model.eval()
logits_lora = model(**dummy_input)[0]
model = model.merge_and_unload()
logits_merged = model(**dummy_input)[0]
transformers_model = self.transformers_class.from_pretrained(model_id).to(self.torch_device)
logits_transformers = transformers_model(**dummy_input)[0]
self.assertTrue(torch.allclose(logits_lora, logits_merged, atol=1e-4, rtol=1e-4))
self.assertFalse(torch.allclose(logits_merged, logits_transformers, atol=1e-10, rtol=1e-10))
with tempfile.TemporaryDirectory() as tmp_dirname:
model.save_pretrained(tmp_dirname)
model_from_pretrained = self.transformers_class.from_pretrained(tmp_dirname).to(self.torch_device)
logits_merged_from_pretrained = model_from_pretrained(**dummy_input)[0]
self.assertTrue(torch.allclose(logits_merged, logits_merged_from_pretrained, atol=1e-4, rtol=1e-4))
def _test_generate(self, model_id, config_cls, config_kwargs):
model = self.transformers_class.from_pretrained(model_id)
config = config_cls(
base_model_name_or_path=model_id,
**config_kwargs,
)
model = get_peft_model(model, config)
model = model.to(self.torch_device)
inputs = self.prepare_inputs_for_testing()
# check if `generate` works
_ = model.generate(**inputs)
with self.assertRaises(TypeError):
# check if `generate` raises an error if no positional arguments are passed
_ = model.generate(inputs["input_ids"])