open difference with extra path separators

[agroce]

import pyfakefs.fake_filesystem
import os

fs = pyfakefs.fake_filesystem.FakeFilesystem()
fs.CreateDirectory('/Volumes')
fs.CreateDirectory('/Volumes/ramdisk')
fs.CreateDirectory('/Volumes/ramdisk/test')
os0 = pyfakefs.fake_filesystem.FakeOsModule(fs)

component0 = "alpha"
component1 = ""
path0 = "/Volumes/ramdisk/test"
path0 += "/" + component0
path0 += "/" + component1
fd0 = os0.open(path0, os.O_CREAT | os.O_WRONLY | os.O_TRUNC)

pyfakefs allows this, os complains with Errno 2 (no such file or directory, '/Volumes/ramdisk/test/alpha/')

[mrbean-bremen]

Ah, these again... we usually strip the ending path separator during name resolving, so this probably needs some twiddling. Some other day...

[mrbean-bremen]

Just for the record: OSError is raised on all systems in this scenario, but with different subtypes:
21 (Is a directory) under Linux
2 (File not found) under MacOS
22 (Invalid argument) under Windows