unsloth/tests/test_raw_text.py
2025-11-18 22:36:38 +08:00

121 lines
No EOL
3.9 KiB
Python

#!/usr/bin/env python3
"""
Minimal test for raw text training implementation.
Tests basic functionality without heavy dependencies.
"""
import sys
import os
import tempfile
from pathlib import Path
import importlib.util
# Mock the datasets module since it's not installed
class MockDataset:
def __init__(self, data_dict):
self.data = data_dict
self.column_names = list(data_dict.keys())
def __len__(self):
return len(next(iter(self.data.values())))
def __getitem__(self, idx):
if isinstance(idx, str):
# Allow accessing columns by name like dataset['text']
return self.data[idx]
elif isinstance(idx, int):
# Allow accessing individual rows by index
return {key: values[idx] for key, values in self.data.items()}
else:
raise TypeError(f"Invalid index type: {type(idx)}")
@classmethod
def from_dict(cls, data_dict):
return cls(data_dict)
# Mock datasets module
datasets_mock = type(sys)('datasets')
datasets_mock.Dataset = MockDataset
sys.modules['datasets'] = datasets_mock
# Import the raw_text module directly to avoid unsloth/__init__.py dependencies
current_dir = os.path.dirname(__file__)
raw_text_path = os.path.join(os.path.dirname(current_dir), 'unsloth', 'dataprep', 'raw_text.py')
spec = importlib.util.spec_from_file_location("raw_text", raw_text_path)
raw_text_module = importlib.util.module_from_spec(spec)
spec.loader.exec_module(raw_text_module)
RawTextDataLoader = raw_text_module.RawTextDataLoader
TextPreprocessor = raw_text_module.TextPreprocessor
def test_raw_text_loader():
"""Test basic RawTextDataLoader functionality."""
# Mock tokenizer for testing
class MockTokenizer:
def __init__(self):
self.eos_token = "</s>"
def __call__(self, text, return_tensors=None, add_special_tokens=False):
words = text.split()
token_ids = list(range(len(words)))
if return_tensors == "pt":
# Mock tensor-like object
class MockTensor:
def __init__(self, data):
self.data = data
def __getitem__(self, idx):
return self.data
def __len__(self):
return len(self.data)
return {"input_ids": [MockTensor(token_ids)]}
return {"input_ids": token_ids}
def decode(self, token_ids, skip_special_tokens=False):
return " ".join([f"word_{i}" for i in token_ids])
# Create test file
test_content = "This is a test file for raw text training. " * 10
with tempfile.NamedTemporaryFile(mode='w', suffix='.txt', delete=False) as f:
f.write(test_content)
test_file = f.name
try:
# Test loader
tokenizer = MockTokenizer()
loader = RawTextDataLoader(tokenizer, chunk_size=5, stride=2)
# Test loading
dataset = loader.load_from_file(test_file)
assert len(dataset) > 0, "Should create at least one chunk"
assert 'text' in dataset.column_names, "Dataset should have 'text' column"
# Test preprocessor
preprocessor = TextPreprocessor()
clean_text = preprocessor.clean_text(" messy text \n\n\n ")
assert "messy text" in clean_text, "Should clean text properly"
# Test validation
stats = preprocessor.validate_dataset(dataset)
assert stats['total_samples'] > 0, "Should count samples"
assert 'warnings' in stats, "Should include warnings"
print("✅ All tests passed!")
return True
except Exception as e:
print(f"❌ Test failed: {e}")
return False
finally:
# Cleanup
os.unlink(test_file)
if __name__ == "__main__":
success = test_raw_text_loader()
sys.exit(0 if success else 1)