File size: 13,578 Bytes
2ad4264 |
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 |
#!/usr/bin/env python
#
# Author: Mike McKerns (mmckerns @caltech and @uqfoundation)
# Copyright (c) 2008-2016 California Institute of Technology.
# Copyright (c) 2016-2024 The Uncertainty Quantification Foundation.
# License: 3-clause BSD. The full license text is available at:
# - https://github.com/uqfoundation/dill/blob/master/LICENSE
import os
import sys
import string
import random
import dill
dill.settings['recurse'] = True
fname = "_test_file.txt"
rand_chars = list(string.ascii_letters) + ["\n"] * 40 # bias newline
buffer_error = ValueError("invalid buffer size")
dne_error = FileNotFoundError("[Errno 2] No such file or directory: '%s'" % fname)
def write_randomness(number=200):
f = open(fname, "w")
for i in range(number):
f.write(random.choice(rand_chars))
f.close()
f = open(fname, "r")
contents = f.read()
f.close()
return contents
def trunc_file():
open(fname, "w").close()
def throws(op, args, exc):
try:
op(*args)
except type(exc):
return sys.exc_info()[1].args == exc.args
else:
return False
def teardown_module():
if os.path.exists(fname):
os.remove(fname)
def bench(strictio, fmode, skippypy):
import platform
if skippypy and platform.python_implementation() == 'PyPy':
# Skip for PyPy...
return
# file exists, with same contents
# read
write_randomness()
f = open(fname, "r")
_f = dill.loads(dill.dumps(f, fmode=fmode))#, strictio=strictio))
assert _f.mode == f.mode
assert _f.tell() == f.tell()
assert _f.read() == f.read()
f.close()
_f.close()
# write
f = open(fname, "w")
f.write("hello")
f_dumped = dill.dumps(f, fmode=fmode)#, strictio=strictio)
f1mode = f.mode
ftell = f.tell()
f.close()
f2 = dill.loads(f_dumped) #FIXME: fails due to pypy/issues/1233
# TypeError: expected py_object instance instead of str
f2mode = f2.mode
f2tell = f2.tell()
f2name = f2.name
f2.write(" world!")
f2.close()
if fmode == dill.HANDLE_FMODE:
assert open(fname).read() == " world!"
assert f2mode == f1mode
assert f2tell == 0
elif fmode == dill.CONTENTS_FMODE:
assert open(fname).read() == "hello world!"
assert f2mode == f1mode
assert f2tell == ftell
assert f2name == fname
elif fmode == dill.FILE_FMODE:
assert open(fname).read() == "hello world!"
assert f2mode == f1mode
assert f2tell == ftell
else:
raise RuntimeError("Unknown file mode '%s'" % fmode)
# append
trunc_file()
f = open(fname, "a")
f.write("hello")
f_dumped = dill.dumps(f, fmode=fmode)#, strictio=strictio)
f1mode = f.mode
ftell = f.tell()
f.close()
f2 = dill.loads(f_dumped)
f2mode = f2.mode
f2tell = f2.tell()
f2.write(" world!")
f2.close()
assert f2mode == f1mode
if fmode == dill.CONTENTS_FMODE:
assert open(fname).read() == "hello world!"
assert f2tell == ftell
elif fmode == dill.HANDLE_FMODE:
assert open(fname).read() == "hello world!"
assert f2tell == ftell
elif fmode == dill.FILE_FMODE:
assert open(fname).read() == "hello world!"
assert f2tell == ftell
else:
raise RuntimeError("Unknown file mode '%s'" % fmode)
# file exists, with different contents (smaller size)
# read
write_randomness()
f = open(fname, "r")
fstr = f.read()
f_dumped = dill.dumps(f, fmode=fmode)#, strictio=strictio)
f1mode = f.mode
ftell = f.tell()
f.close()
_flen = 150
_fstr = write_randomness(number=_flen)
if strictio: # throw error if ftell > EOF
assert throws(dill.loads, (f_dumped,), buffer_error)
else:
f2 = dill.loads(f_dumped)
assert f2.mode == f1mode
if fmode == dill.CONTENTS_FMODE:
assert f2.tell() == _flen
assert f2.read() == ""
f2.seek(0)
assert f2.read() == _fstr
assert f2.tell() == _flen # 150
elif fmode == dill.HANDLE_FMODE:
assert f2.tell() == 0
assert f2.read() == _fstr
assert f2.tell() == _flen # 150
elif fmode == dill.FILE_FMODE:
assert f2.tell() == ftell # 200
assert f2.read() == ""
f2.seek(0)
assert f2.read() == fstr
assert f2.tell() == ftell # 200
else:
raise RuntimeError("Unknown file mode '%s'" % fmode)
f2.close()
# write
write_randomness()
f = open(fname, "w")
f.write("hello")
f_dumped = dill.dumps(f, fmode=fmode)#, strictio=strictio)
f1mode = f.mode
ftell = f.tell()
f.close()
fstr = open(fname).read()
f = open(fname, "w")
f.write("h")
_ftell = f.tell()
f.close()
if strictio: # throw error if ftell > EOF
assert throws(dill.loads, (f_dumped,), buffer_error)
else:
f2 = dill.loads(f_dumped)
f2mode = f2.mode
f2tell = f2.tell()
f2.write(" world!")
f2.close()
if fmode == dill.CONTENTS_FMODE:
assert open(fname).read() == "h world!"
assert f2mode == f1mode
assert f2tell == _ftell
elif fmode == dill.HANDLE_FMODE:
assert open(fname).read() == " world!"
assert f2mode == f1mode
assert f2tell == 0
elif fmode == dill.FILE_FMODE:
assert open(fname).read() == "hello world!"
assert f2mode == f1mode
assert f2tell == ftell
else:
raise RuntimeError("Unknown file mode '%s'" % fmode)
f2.close()
# append
trunc_file()
f = open(fname, "a")
f.write("hello")
f_dumped = dill.dumps(f, fmode=fmode)#, strictio=strictio)
f1mode = f.mode
ftell = f.tell()
f.close()
fstr = open(fname).read()
f = open(fname, "w")
f.write("h")
_ftell = f.tell()
f.close()
if strictio: # throw error if ftell > EOF
assert throws(dill.loads, (f_dumped,), buffer_error)
else:
f2 = dill.loads(f_dumped)
f2mode = f2.mode
f2tell = f2.tell()
f2.write(" world!")
f2.close()
assert f2mode == f1mode
if fmode == dill.CONTENTS_FMODE:
# position of writes cannot be changed on some OSs
assert open(fname).read() == "h world!"
assert f2tell == _ftell
elif fmode == dill.HANDLE_FMODE:
assert open(fname).read() == "h world!"
assert f2tell == _ftell
elif fmode == dill.FILE_FMODE:
assert open(fname).read() == "hello world!"
assert f2tell == ftell
else:
raise RuntimeError("Unknown file mode '%s'" % fmode)
f2.close()
# file does not exist
# read
write_randomness()
f = open(fname, "r")
fstr = f.read()
f_dumped = dill.dumps(f, fmode=fmode)#, strictio=strictio)
f1mode = f.mode
ftell = f.tell()
f.close()
os.remove(fname)
if strictio: # throw error if file DNE
assert throws(dill.loads, (f_dumped,), dne_error)
else:
f2 = dill.loads(f_dumped)
assert f2.mode == f1mode
if fmode == dill.CONTENTS_FMODE:
# FIXME: this fails on systems where f2.tell() always returns 0
# assert f2.tell() == ftell # 200
assert f2.read() == ""
f2.seek(0)
assert f2.read() == ""
assert f2.tell() == 0
elif fmode == dill.FILE_FMODE:
assert f2.tell() == ftell # 200
assert f2.read() == ""
f2.seek(0)
assert f2.read() == fstr
assert f2.tell() == ftell # 200
elif fmode == dill.HANDLE_FMODE:
assert f2.tell() == 0
assert f2.read() == ""
assert f2.tell() == 0
else:
raise RuntimeError("Unknown file mode '%s'" % fmode)
f2.close()
# write
write_randomness()
f = open(fname, "w+")
f.write("hello")
f_dumped = dill.dumps(f, fmode=fmode)#, strictio=strictio)
ftell = f.tell()
f1mode = f.mode
f.close()
os.remove(fname)
if strictio: # throw error if file DNE
assert throws(dill.loads, (f_dumped,), dne_error)
else:
f2 = dill.loads(f_dumped)
f2mode = f2.mode
f2tell = f2.tell()
f2.write(" world!")
f2.close()
if fmode == dill.CONTENTS_FMODE:
assert open(fname).read() == " world!"
assert f2mode == 'w+'
assert f2tell == 0
elif fmode == dill.HANDLE_FMODE:
assert open(fname).read() == " world!"
assert f2mode == f1mode
assert f2tell == 0
elif fmode == dill.FILE_FMODE:
assert open(fname).read() == "hello world!"
assert f2mode == f1mode
assert f2tell == ftell
else:
raise RuntimeError("Unknown file mode '%s'" % fmode)
# append
trunc_file()
f = open(fname, "a")
f.write("hello")
f_dumped = dill.dumps(f, fmode=fmode)#, strictio=strictio)
ftell = f.tell()
f1mode = f.mode
f.close()
os.remove(fname)
if strictio: # throw error if file DNE
assert throws(dill.loads, (f_dumped,), dne_error)
else:
f2 = dill.loads(f_dumped)
f2mode = f2.mode
f2tell = f2.tell()
f2.write(" world!")
f2.close()
assert f2mode == f1mode
if fmode == dill.CONTENTS_FMODE:
assert open(fname).read() == " world!"
assert f2tell == 0
elif fmode == dill.HANDLE_FMODE:
assert open(fname).read() == " world!"
assert f2tell == 0
elif fmode == dill.FILE_FMODE:
assert open(fname).read() == "hello world!"
assert f2tell == ftell
else:
raise RuntimeError("Unknown file mode '%s'" % fmode)
# file exists, with different contents (larger size)
# read
write_randomness()
f = open(fname, "r")
fstr = f.read()
f_dumped = dill.dumps(f, fmode=fmode)#, strictio=strictio)
f1mode = f.mode
ftell = f.tell()
f.close()
_flen = 250
_fstr = write_randomness(number=_flen)
# XXX: no safe_file: no way to be 'safe'?
f2 = dill.loads(f_dumped)
assert f2.mode == f1mode
if fmode == dill.CONTENTS_FMODE:
assert f2.tell() == ftell # 200
assert f2.read() == _fstr[ftell:]
f2.seek(0)
assert f2.read() == _fstr
assert f2.tell() == _flen # 250
elif fmode == dill.HANDLE_FMODE:
assert f2.tell() == 0
assert f2.read() == _fstr
assert f2.tell() == _flen # 250
elif fmode == dill.FILE_FMODE:
assert f2.tell() == ftell # 200
assert f2.read() == ""
f2.seek(0)
assert f2.read() == fstr
assert f2.tell() == ftell # 200
else:
raise RuntimeError("Unknown file mode '%s'" % fmode)
f2.close() # XXX: other alternatives?
# write
f = open(fname, "w")
f.write("hello")
f_dumped = dill.dumps(f, fmode=fmode)#, strictio=strictio)
f1mode = f.mode
ftell = f.tell()
fstr = open(fname).read()
f.write(" and goodbye!")
_ftell = f.tell()
f.close()
# XXX: no safe_file: no way to be 'safe'?
f2 = dill.loads(f_dumped)
f2mode = f2.mode
f2tell = f2.tell()
f2.write(" world!")
f2.close()
if fmode == dill.CONTENTS_FMODE:
assert open(fname).read() == "hello world!odbye!"
assert f2mode == f1mode
assert f2tell == ftell
elif fmode == dill.HANDLE_FMODE:
assert open(fname).read() == " world!"
assert f2mode == f1mode
assert f2tell == 0
elif fmode == dill.FILE_FMODE:
assert open(fname).read() == "hello world!"
assert f2mode == f1mode
assert f2tell == ftell
else:
raise RuntimeError("Unknown file mode '%s'" % fmode)
f2.close()
# append
trunc_file()
f = open(fname, "a")
f.write("hello")
f_dumped = dill.dumps(f, fmode=fmode)#, strictio=strictio)
f1mode = f.mode
ftell = f.tell()
fstr = open(fname).read()
f.write(" and goodbye!")
_ftell = f.tell()
f.close()
# XXX: no safe_file: no way to be 'safe'?
f2 = dill.loads(f_dumped)
f2mode = f2.mode
f2tell = f2.tell()
f2.write(" world!")
f2.close()
assert f2mode == f1mode
if fmode == dill.CONTENTS_FMODE:
assert open(fname).read() == "hello and goodbye! world!"
assert f2tell == ftell
elif fmode == dill.HANDLE_FMODE:
assert open(fname).read() == "hello and goodbye! world!"
assert f2tell == _ftell
elif fmode == dill.FILE_FMODE:
assert open(fname).read() == "hello world!"
assert f2tell == ftell
else:
raise RuntimeError("Unknown file mode '%s'" % fmode)
f2.close()
def test_nostrictio_handlefmode():
bench(False, dill.HANDLE_FMODE, False)
teardown_module()
def test_nostrictio_filefmode():
bench(False, dill.FILE_FMODE, False)
teardown_module()
def test_nostrictio_contentsfmode():
bench(False, dill.CONTENTS_FMODE, True)
teardown_module()
#bench(True, dill.HANDLE_FMODE, False)
#bench(True, dill.FILE_FMODE, False)
#bench(True, dill.CONTENTS_FMODE, True)
if __name__ == '__main__':
test_nostrictio_handlefmode()
test_nostrictio_filefmode()
test_nostrictio_contentsfmode()
|