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# Test for VfsPosix
try:
import gc, os, vfs
vfs.VfsPosix
except (ImportError, AttributeError):
print("SKIP")
raise SystemExit
# We need a directory for testing that doesn't already exist.
# Skip the test if it does exist.
temp_dir = "micropy_test_dir"
try:
os.stat(temp_dir)
print("SKIP")
raise SystemExit
except OSError:
pass
# getcwd and chdir
curdir = os.getcwd()
os.chdir("/")
print(os.getcwd())
os.chdir(curdir)
print(os.getcwd() == curdir)
# stat
print(type(os.stat("/")))
# listdir and ilistdir
target = "/"
try:
import platform
# On Android non-root users are permitted full filesystem access only to
# selected directories. To let this test pass on bionic, the internal
# user-accessible storage area root is enumerated instead of the
# filesystem root. "/storage/emulated/0" should be there on pretty much
# any recent-ish device; querying the proper location requires a JNI
# round-trip, not really worth it.
if platform.platform().startswith("Android-"):
target = "/storage/emulated/0"
except ImportError:
pass
print(type(os.listdir(target)))
# mkdir
os.mkdir(temp_dir)
# file create
f = open(temp_dir + "/test", "w")
f.write("hello")
f.close()
# close on a closed file should succeed
f.close()
# construct a file object with a raw fileno
f = open(2)
print(f)
# file read
f = open(temp_dir + "/test", "r")
print(f.read())
f.close()
# file finaliser, also see vfs_fat_finaliser.py
names = [temp_dir + "/x%d" % i for i in range(4)]
basefd = temp_dir + "/nextfd1"
nextfd = temp_dir + "/nextfd2"
with open(basefd, "w") as f:
base_file_no = f.fileno()
for i in range(1024): # move GC head forwards by allocating a lot of single blocks
[]
def write_files_without_closing():
for n in names:
open(n, "w").write(n)
sorted(list(range(128)), key=lambda x: x) # use up Python and C stack so f is really gone
write_files_without_closing()
gc.collect()
with open(nextfd, "w") as f:
next_file_no = f.fileno()
print("next_file_no <= base_file_no", next_file_no <= base_file_no)
for n in names + [basefd, nextfd]:
os.remove(n)
# rename
os.rename(temp_dir + "/test", temp_dir + "/test2")
print(os.listdir(temp_dir))
# construct new VfsPosix with path argument
fs = vfs.VfsPosix(temp_dir)
# when VfsPosix is used the intended way via vfs.mount(), it can only be called
# with relative paths when the CWD is inside or at its root, so simulate that
os.chdir(temp_dir)
print(list(i[0] for i in fs.ilistdir(".")))
# stat, statvfs (statvfs may not exist)
print(type(fs.stat(".")))
if hasattr(fs, "statvfs"):
assert type(fs.statvfs(".")) is tuple
# check types of ilistdir with str/bytes arguments
print(type(list(fs.ilistdir("."))[0][0]))
print(type(list(fs.ilistdir(b"."))[0][0]))
# chdir should not affect absolute paths (regression test)
fs.mkdir("/subdir")
fs.mkdir("/subdir/micropy_test_dir")
with fs.open("/subdir/micropy_test_dir/test2", "w") as f:
f.write("wrong")
fs.chdir("/subdir")
with fs.open("/test2", "r") as f:
print(f.read())
os.chdir(curdir)
fs.remove("/subdir/micropy_test_dir/test2")
fs.rmdir("/subdir/micropy_test_dir")
fs.rmdir("/subdir")
# done with fs, restore CWD
os.chdir(curdir)
# remove
os.remove(temp_dir + "/test2")
print(os.listdir(temp_dir))
# remove with error
try:
import os
os.remove(temp_dir + "/test2")
except OSError:
print("remove OSError")
# rmdir
os.rmdir(temp_dir)
print(temp_dir in os.listdir())
# rmdir with error
try:
import os
os.rmdir(temp_dir)
except OSError:
print("rmdir OSError")
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