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tests/seek-data-capable
33 строки
834 B
Pádraig Brady
tests: ensure we test SEEK_DATA where used
13 май 2021, 00:14
13 май 2021, 00:14
4eb2e9c
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import sys, os, errno, platform # Pass an _empty_ file if len(sys.argv) != 2: sys.exit(1) if not hasattr(os, 'SEEK_DATA'): # Not available on python 2, or on darwin python 3 # Also Darwin swaps SEEK_DATA/SEEK_HOLE definitions if platform.system() == "Darwin": SEEK_DATA = 4 else: SEEK_DATA = 3 # Valid on Linux, FreeBSD, Solaris else: SEEK_DATA = os.SEEK_DATA # Even if os supports SEEK_DATA or SEEK_HOLE, # the file system may not, in which case it would report # current and eof positions respectively. # Therefore work with an empty file, # ensuring SEEK_DATA returns ENXIO (no more data) try: fd = os.open(sys.argv[1], os.O_RDONLY) except: sys.exit(1) try: data = os.lseek(fd, 0, SEEK_DATA) except OSError as e: if e.errno == errno.ENXIO: sys.exit(0) sys.exit(1)