circuitpython/tests/extmod/ussl_basic.py

70 lines
1.3 KiB
Python

# very basic test of ssl module, just to test the methods exist
try:
import uio as io
import ussl as ssl
except ImportError:
print("SKIP")
raise SystemExit
class TestSocket(io.IOBase):
def write(self, buf):
return len(buf)
def readinto(self, buf):
return 0
def ioctl(self, cmd, arg):
print("TestSocket.ioctl", cmd, arg)
return 0
def setblocking(self, value):
print("TestSocket.setblocking({})".format(value))
# create in client mode
try:
ss = ssl.wrap_socket(TestSocket(), server_hostname="test.example.com")
except OSError as er:
print("OSError: client")
# create in server mode (can use this object for further tests)
ss = ssl.wrap_socket(TestSocket(), server_side=1, do_handshake=0)
# print
print(repr(ss)[:12])
# setblocking() propagates call to the underlying stream object
ss.setblocking(False)
ss.setblocking(True)
# write
try:
ss.write(b"aaaa")
except OSError:
pass
# read (underlying socket has no data)
try:
ss.read(8)
except OSError:
pass
# close
ss.close()
# close 2nd time
ss.close()
# read on closed socket
try:
ss.read(10)
except OSError as er:
print("OSError: read")
# write on closed socket
try:
ss.write(b"aaaa")
except OSError as er:
print("OSError: write")