micropython/tests/extmod/vfs_posix.py

# Test for VfsPosix

try:
    import uos

    uos.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:
    uos.stat(temp_dir)
    print("SKIP")
    raise SystemExit
except OSError:
    pass

# getcwd and chdir
curdir = uos.getcwd()
uos.chdir("/")
print(uos.getcwd())
uos.chdir(curdir)
print(uos.getcwd() == curdir)

# stat
print(type(uos.stat("/")))

# listdir and ilistdir
print(type(uos.listdir("/")))

# mkdir
uos.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 using the type constructor, with a raw fileno
f = type(f)(2)
print(f)

# file read
f = open(temp_dir + "/test", "r")
print(f.read())
f.close()

# rename
uos.rename(temp_dir + "/test", temp_dir + "/test2")
print(uos.listdir(temp_dir))

# construct new VfsPosix with path argument
vfs = uos.VfsPosix(temp_dir)
print(list(i[0] for i in vfs.ilistdir(".")))

# stat, statvfs (statvfs may not exist)
print(type(vfs.stat(".")))
if hasattr(vfs, "statvfs"):
    assert type(vfs.statvfs(".")) is tuple

# check types of ilistdir with str/bytes arguments
print(type(list(vfs.ilistdir("."))[0][0]))
print(type(list(vfs.ilistdir(b"."))[0][0]))

# remove
uos.remove(temp_dir + "/test2")
print(uos.listdir(temp_dir))

# remove with error
try:
    uos.remove(temp_dir + "/test2")
except OSError:
    print("remove OSError")

# rmdir
uos.rmdir(temp_dir)
print(temp_dir in uos.listdir())

# rmdir with error
try:
    uos.rmdir(temp_dir)
except OSError:
    print("rmdir OSError")