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a5fd608 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 | """检查点解析功能单元测试
测试 resolve_checkpoint 函数的各种场景。
测试场景：
resolve_checkpoint 测试场景：
├── path 提供
│ ├── 绝对路径
│ │ ├── 存在
│ │ │ ├── .keras文件 → 成功返回
│ │ │ └── .weights.h5文件 → 成功返回
│ │ ├── 存在（同时提供dirs）→ 使用绝对路径，忽略dirs，打印警告
│ │ ├── suffix不匹配 → FileNotFoundError
│ │ └── 不存在 → FileNotFoundError
│ └── 相对路径
│ ├── dirs提供
│ │ ├── 单目录 → 成功解析
│ │ └── 多目录按顺序查找 → 成功解析
│ └── dirs=None → ValueError
└── path 未提供
└── dirs 提供
├── epoch=None
│ ├── 单目录
│ │ ├── 存在 .weights.h5 / .keras 文件 → 返回最新的
│ │ ├── 存在但为空 → 返回 (None, 0)
│ │ └── 目录不存在 → 返回 (None, 0)
│ └── 多目录 → 返回全局最新的检查点
└── epoch指定
├── 未指定suffix
│ ├── 存在对应epoch → 返回对应epoch的检查点
│ └── epoch不存在 → FileNotFoundError
└── 指定suffix
├── 存在对应后缀 → 返回对应检查点
└── 无对应后缀 → FileNotFoundError
└── 两者都为None → ValueError
extract_number_of_filename 测试场景：
├── 正常提取
│ ├── 从包含 epoch 的文件名中提取数字 → 返回数字
│ ├── 从多个数字的文件名中提取最后一个数字 → 返回最后一个数字
│ └── 从 .keras 文件名中提取数字 → 返回数字
└── 异常情况
├── 没有数字的文件名 → 抛出 ValueError
└── .weights.h5 文件名中没有数字 → 抛出 ValueError
"""
import pathlib
import tempfile
import pytest
from pipeline.base.configs import CheckpointConfig
from pipeline.base.checkpoint import (
extract_number_of_filename,
resolve_checkpoint
)
class TestCheckpointConfig:
def test_default_values(self):
checkpoint = CheckpointConfig()
assert checkpoint.dirs is None
assert checkpoint.path is None
assert checkpoint.epoch is None
assert checkpoint.suffix is None
def test_custom_values(self):
checkpoint = CheckpointConfig(
dirs=[pathlib.Path("dir_a"), pathlib.Path("dir_b")],
path=pathlib.Path("model_epoch_005.weights.h5"),
epoch=5,
suffix=".weights.h5"
)
assert checkpoint.dirs == [pathlib.Path("dir_a"), pathlib.Path("dir_b")]
assert checkpoint.path == pathlib.Path("model_epoch_005.weights.h5")
assert checkpoint.epoch == 5
assert checkpoint.suffix == ".weights.h5"
class TestExtractNumberOfFilename:
"""测试 extract_number_of_filename 函数"""
def test_extract_from_epoch_filename(self):
"""从包含 epoch 的文件名中提取数字"""
assert extract_number_of_filename("model_epoch_001") == 1
assert extract_number_of_filename("model_epoch_010") == 10
assert extract_number_of_filename("model_epoch_100") == 100
def test_extract_last_number(self):
"""提取最后一个数字"""
assert extract_number_of_filename("checkpoint_2024_06_30_epoch_002") == 2
assert extract_number_of_filename("model_v1_epoch_005") == 5
def test_extract_from_keras_file(self):
"""从 .keras 文件名中提取数字"""
assert extract_number_of_filename("epoch_005_model") == 5
assert extract_number_of_filename("model_epoch_003.keras") == 3
def test_no_number_raises_error(self):
"""没有数字时抛出 ValueError"""
with pytest.raises(ValueError, match="No number found"):
extract_number_of_filename("model_final")
def test_no_number_in_weights_file_raises_error(self):
""".weights.h5 文件名中没有数字时抛出 ValueError"""
with pytest.raises(ValueError, match="No number found"):
extract_number_of_filename("model_final.weights")
class TestResolveCheckpoint:
"""测试 resolve_checkpoint 函数"""
@pytest.fixture
def temp_dir(self):
"""创建临时目录"""
with tempfile.TemporaryDirectory() as tmp:
yield pathlib.Path(tmp)
def test_absolute_path_exists_returns_path_and_epoch(self, temp_dir):
"""path=绝对路径且存在 → 成功返回"""
checkpoint_file = temp_dir / "model_epoch_005.keras"
checkpoint_file.write_text("dummy")
path, epoch = resolve_checkpoint(path=checkpoint_file)
assert path == checkpoint_file
assert epoch == 5
def test_absolute_path_with_dirs_ignores_dir_and_warns(self, temp_dir):
"""path=绝对路径且存在（同时提供dirs）→ 使用绝对路径，忽略dirs，打印警告"""
checkpoint_file = temp_dir / "model_epoch_005.keras"
checkpoint_file.write_text("dummy")
other_dir = temp_dir / "other_dir"
other_dir.mkdir()
with pytest.warns(UserWarning, match="dirs 参数将被忽略"):
path, epoch = resolve_checkpoint(
path=checkpoint_file,
dirs=[other_dir]
)
assert path == checkpoint_file
assert epoch == 5
def test_absolute_path_not_exists_raises_error(self, temp_dir):
"""path=绝对路径但不存在 → FileNotFoundError"""
checkpoint_file = temp_dir / "model_epoch_005.keras"
with pytest.raises(FileNotFoundError, match="检查点文件不存在"):
resolve_checkpoint(path=checkpoint_file)
def test_relative_path_with_dirs_returns_path(self, temp_dir):
"""path=相对路径+dirs → 成功解析"""
checkpoint_file = temp_dir / "model_epoch_010.weights.h5"
checkpoint_file.write_text("dummy")
path, epoch = resolve_checkpoint(
dirs=[temp_dir],
path="model_epoch_010.weights.h5"
)
assert path == checkpoint_file
assert epoch == 10
def test_relative_path_without_dirs_raises_error(self):
"""path=相对路径+dirs=None → ValueError"""
with pytest.raises(ValueError, match="path 是相对路径时，必须提供 dirs"):
resolve_checkpoint(path="model.keras")
def test_resolve_latest_weights_h5(self, temp_dir):
"""path=None+dirs存在+epoch=None → 返回最新的检查点"""
(temp_dir / "model_epoch_001.weights.h5").write_text("dummy")
(temp_dir / "model_epoch_005.weights.h5").write_text("dummy")
(temp_dir / "model_epoch_003.weights.h5").write_text("dummy")
(temp_dir / "model_epoch_004.keras").write_text("dummy")
path, epoch = resolve_checkpoint(dirs=[temp_dir])
assert path.name == "model_epoch_005.weights.h5"
assert epoch == 5
def test_resolve_specific_epoch(self, temp_dir):
"""path=None+dirs存在+epoch指定 → 返回对应epoch的检查点"""
(temp_dir / "model_epoch_001.weights.h5").write_text("dummy")
(temp_dir / "model_epoch_005.weights.h5").write_text("dummy")
(temp_dir / "model_epoch_010.weights.h5").write_text("dummy")
path, epoch = resolve_checkpoint(dirs=[temp_dir], epoch=5)
assert path.name == "model_epoch_005.weights.h5"
assert epoch == 5
def test_resolve_nonexistent_epoch_raises_error(self, temp_dir):
"""请求不存在的 epoch → FileNotFoundError"""
(temp_dir / "model_epoch_001.weights.h5").write_text("dummy")
with pytest.raises(FileNotFoundError, match="未找到 epoch 5"):
resolve_checkpoint(dirs=[temp_dir], epoch=5)
def test_empty_dirs_returns_none(self, temp_dir):
"""path=None+dirs存在但为空 → 返回 (None, 0)"""
path, epoch = resolve_checkpoint(dirs=[temp_dir])
assert path is None
assert epoch == 0
def test_nonexistent_dirs_returns_none(self):
"""path=None+dirs不存在 → 返回 (None, 0)"""
path, epoch = resolve_checkpoint(dirs=["/nonexistent/path"])
assert path is None
assert epoch == 0
def test_both_none_raises_error(self):
"""两者都为None → ValueError"""
with pytest.raises(ValueError, match="必须提供 dirs 或 path"):
resolve_checkpoint()
def test_resolve_keras_file(self, temp_dir):
"""支持 .keras 文件格式"""
checkpoint_file = temp_dir / "epoch_007_model.keras"
checkpoint_file.write_text("dummy")
path, epoch = resolve_checkpoint(path=checkpoint_file)
assert path == checkpoint_file
assert epoch == 7
def test_resolve_weights_h5_file(self, temp_dir):
"""支持 .weights.h5 文件格式"""
checkpoint_file = temp_dir / "model_epoch_012.weights.h5"
checkpoint_file.write_text("dummy")
path, epoch = resolve_checkpoint(path=checkpoint_file)
assert path == checkpoint_file
assert epoch == 12
def test_relative_path_uses_checkpoint_dirs_in_order(self, temp_dir):
first_dir = temp_dir / "first"
second_dir = temp_dir / "second"
first_dir.mkdir()
second_dir.mkdir()
checkpoint_file = second_dir / "model_epoch_012.weights.h5"
checkpoint_file.write_text("dummy")
path, epoch = resolve_checkpoint(
dirs=[first_dir, second_dir],
path="model_epoch_012.weights.h5"
)
assert path == checkpoint_file
assert epoch == 12
def test_resolve_latest_from_checkpoint_dirs(self, temp_dir):
first_dir = temp_dir / "first"
second_dir = temp_dir / "second"
first_dir.mkdir()
second_dir.mkdir()
(first_dir / "model_epoch_003.weights.h5").write_text("dummy")
(second_dir / "model_epoch_008.weights.h5").write_text("dummy")
path, epoch = resolve_checkpoint(dirs=[first_dir, second_dir])
assert path == second_dir / "model_epoch_008.weights.h5"
assert epoch == 8
def test_resolve_with_suffix(self, temp_dir):
(temp_dir / "model_epoch_003.weights.h5").write_text("dummy")
(temp_dir / "model_epoch_005.keras").write_text("dummy")
path, epoch = resolve_checkpoint(
dirs=[temp_dir],
suffix=".keras"
)
assert path == temp_dir / "model_epoch_005.keras"
assert epoch == 5
def test_resolve_with_missing_suffix_raises_error(self, temp_dir):
(temp_dir / "model_epoch_003.weights.h5").write_text("dummy")
with pytest.raises(FileNotFoundError, match="未找到 epoch 3"):
resolve_checkpoint(
dirs=[temp_dir],
epoch=3,
suffix=".keras"
)
def test_absolute_path_with_suffix_mismatch_raises_error(self, temp_dir):
checkpoint_file = temp_dir / "model_epoch_005.keras"
checkpoint_file.write_text("dummy")
with pytest.raises(FileNotFoundError, match="检查点文件后缀不匹配"):
resolve_checkpoint(
path=checkpoint_file,
suffix=".weights.h5"
)
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