ViperEkura
aa2ea4f3a6
- SFTProcessor 输出 per-sample position_ids（torch.arange），每个样本从 0 开始 - position_ids 与 sequence/loss_mask 一同打包，边界处自然重置 - PT 路径不生成 position_ids - 新增 TestPositionIds 测试及 SFTProcessor 相关测试
185 lines
6.9 KiB
Python
185 lines
6.9 KiB
Python
"""Tests for pipeline.io module."""
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import os
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import tempfile
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import pytest
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import torch
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import h5py
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from pathlib import Path
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from pipeline.io import FileScanner, HDF5Handler, cache_jsonl
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class TestFileScanner:
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def test_scan_files_in_directory(self):
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with tempfile.TemporaryDirectory() as tmpdir:
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Path(tmpdir, "file1.txt").touch()
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Path(tmpdir, "file2.txt").touch()
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subdir = os.path.join(tmpdir, "subdir")
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os.makedirs(subdir)
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Path(subdir, "file3.txt").touch()
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files = FileScanner.scan(tmpdir)
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assert len(files) == 3
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def test_scan_empty_directory(self):
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with tempfile.TemporaryDirectory() as tmpdir:
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assert FileScanner.scan(tmpdir) == []
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def test_scan_with_suffix_filter(self):
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with tempfile.TemporaryDirectory() as tmpdir:
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Path(tmpdir, "file1.txt").touch()
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Path(tmpdir, "file2.json").touch()
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txt_files = FileScanner.scan(tmpdir, suffix=".txt")
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assert len(txt_files) == 1
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assert txt_files[0].endswith(".txt")
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def test_scan_folders_in_directory(self):
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with tempfile.TemporaryDirectory() as tmpdir:
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os.makedirs(os.path.join(tmpdir, "folder1"))
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os.makedirs(os.path.join(tmpdir, "folder2"))
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os.makedirs(os.path.join(tmpdir, "folder1", "nested"))
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folders = FileScanner.scan_folders(tmpdir)
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assert len(folders) == 3
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def test_scan_folders_with_filter(self):
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with tempfile.TemporaryDirectory() as tmpdir:
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os.makedirs(os.path.join(tmpdir, "folder1"))
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os.makedirs(os.path.join(tmpdir, "folder2"))
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folders = FileScanner.scan_folders(
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tmpdir, filter_func=lambda x: "folder1" in x
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)
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assert len(folders) == 1
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def test_group_by_extension(self):
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files = ["/path/file1.txt", "/path/file2.txt", "/path/file3.json"]
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groups = FileScanner.group_by_extension(files)
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assert ".txt" in groups
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assert ".json" in groups
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assert len(groups[".txt"]) == 2
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assert len(groups[".json"]) == 1
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class TestHDF5Handler:
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def test_save_and_load(self):
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with tempfile.TemporaryDirectory() as tmpdir:
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tensor_group = {
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"sequence": [torch.tensor([1, 2, 3], dtype=torch.int32)],
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"labels": [torch.tensor([4, 5], dtype=torch.int32)],
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}
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h5_path = HDF5Handler.save(tmpdir, "test", tensor_group)
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assert os.path.exists(h5_path)
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loaded = HDF5Handler.load(h5_path, share_memory=False)
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assert "sequence" in loaded
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assert "labels" in loaded
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assert torch.equal(
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loaded["sequence"][0], torch.tensor([1, 2, 3], dtype=torch.int32)
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)
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assert torch.equal(
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loaded["labels"][0], torch.tensor([4, 5], dtype=torch.int32)
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)
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def test_save_creates_directory(self):
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with tempfile.TemporaryDirectory() as tmpdir:
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output_dir = os.path.join(tmpdir, "nested", "output")
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HDF5Handler.save(output_dir, "test", {"data": [torch.tensor([1, 2, 3])]})
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assert os.path.exists(output_dir)
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assert os.path.exists(os.path.join(output_dir, "test.h5"))
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def test_load_directory_with_multiple_files(self):
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with tempfile.TemporaryDirectory() as tmpdir:
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for i, data in enumerate([[1, 2, 3], [4, 5, 6]]):
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h5_path = os.path.join(tmpdir, f"file{i}.h5")
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with h5py.File(h5_path, "w") as f:
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grp = f.create_group("data")
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grp.create_dataset("data_0", data=data)
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loaded = HDF5Handler.load(tmpdir, share_memory=False)
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assert len(loaded["data"]) == 2
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def test_load_directory_with_nested_files(self):
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with tempfile.TemporaryDirectory() as tmpdir:
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subdir = os.path.join(tmpdir, "subdir")
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os.makedirs(subdir)
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h5_path = os.path.join(subdir, "nested.h5")
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with h5py.File(h5_path, "w") as f:
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grp = f.create_group("test")
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grp.create_dataset("data_0", data=[1, 2])
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loaded = HDF5Handler.load(tmpdir, share_memory=False)
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assert "test" in loaded
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assert len(loaded["test"]) == 1
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def test_save_multiple_tensors_per_key(self):
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with tempfile.TemporaryDirectory() as tmpdir:
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tensor_group = {
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"batch": [
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torch.tensor([1, 2]),
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torch.tensor([3, 4, 5]),
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torch.tensor([6]),
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],
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}
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HDF5Handler.save(tmpdir, "multi", tensor_group)
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loaded = HDF5Handler.load(tmpdir, share_memory=False)
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assert len(loaded["batch"]) == 3
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def test_get_metadata(self):
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with tempfile.TemporaryDirectory() as tmpdir:
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tensor_group = {
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"data": [torch.tensor([1, 2, 3]) for _ in range(5)],
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}
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HDF5Handler.save(tmpdir, "meta", tensor_group)
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h5_path = os.path.join(tmpdir, "meta.h5")
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metadata = HDF5Handler.get_metadata(h5_path)
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assert metadata["data"] == 5
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class DummyTokenizer:
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im_end = "<|im_end|>"
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def encode(self, text: str, add_special_tokens: bool = False):
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return [ord(c) for c in text]
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def apply_chat_template(
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self, messages, add_generation_prompt=True, tokenize=True
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):
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text = ""
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for m in messages:
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text += f"<|im_start|>{m['role']}\n{m['content']}<|im_end|>\n"
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if add_generation_prompt:
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text += "<|im_start|>assistant\n"
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return self.encode(text) if tokenize else text
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class TestPositionIds:
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def test_example_specific_position_ids(self):
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with tempfile.TemporaryDirectory() as tmpdir:
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jsonl_path = os.path.join(tmpdir, "data.jsonl")
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with open(jsonl_path, "w") as f:
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f.write('{"messages": [{"role": "user", "content": "a"}, {"role": "assistant", "content": "bc"}]}\n')
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f.write('{"messages": [{"role": "user", "content": "def"}, {"role": "assistant", "content": "g"}]}\n')
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from pipeline.processors import SFTProcessor
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processor = SFTProcessor(DummyTokenizer())
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out_dir = os.path.join(tmpdir, "cached")
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cache_jsonl([jsonl_path], out_dir, processor, pack_size=-1)
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h5_path = os.path.join(out_dir, "data.h5")
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loaded = HDF5Handler.load(h5_path, share_memory=False)
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assert "position_ids" in loaded
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assert len(loaded["position_ids"]) == 2
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assert len(loaded["position_ids"]) == len(loaded["sequence"])
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for i, pos in enumerate(loaded["position_ids"]):
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seq_len = len(loaded["sequence"][i])
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assert len(pos) == seq_len
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assert pos[0].item() == 0
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assert (pos == torch.arange(seq_len, dtype=torch.int32)).all()
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