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"""Unit tests for tftpy."""
import unittest
import logging
import tftpy
import os
log = tftpy.log
class TestTftpyClasses(unittest.TestCase):
def setUp(self):
tftpy.setLogLevel(logging.DEBUG)
def testTftpPacketRRQ(self):
log.debug("===> Running testcase testTftpPacketRRQ")
options = {}
rrq = tftpy.TftpPacketRRQ()
rrq.filename = 'myfilename'
rrq.mode = 'octet'
rrq.options = options
rrq.encode()
self.assert_(rrq.buffer != None, "Buffer populated")
rrq.decode()
self.assertEqual(rrq.filename, "myfilename", "Filename correct")
self.assertEqual(rrq.mode, "octet", "Mode correct")
self.assertEqual(rrq.options, options, "Options correct")
# repeat test with options
rrq.options = { 'blksize': '1024' }
rrq.filename = 'myfilename'
rrq.mode = 'octet'
rrq.encode()
self.assert_(rrq.buffer != None, "Buffer populated")
rrq.decode()
self.assertEqual(rrq.filename, "myfilename", "Filename correct")
self.assertEqual(rrq.mode, "octet", "Mode correct")
self.assertEqual(rrq.options['blksize'], '1024', "Blksize correct")
def testTftpPacketWRQ(self):
log.debug("===> Running test case testTftpPacketWRQ")
options = {}
wrq = tftpy.TftpPacketWRQ()
wrq.filename = 'myfilename'
wrq.mode = 'octet'
wrq.options = options
wrq.encode()
self.assert_(wrq.buffer != None, "Buffer populated")
wrq.decode()
self.assertEqual(wrq.opcode, 2, "Opcode correct")
self.assertEqual(wrq.filename, "myfilename", "Filename correct")
self.assertEqual(wrq.mode, "octet", "Mode correct")
self.assertEqual(wrq.options, options, "Options correct")
# repeat test with options
wrq.options = { 'blksize': '1024' }
wrq.filename = 'myfilename'
wrq.mode = 'octet'
wrq.encode()
self.assert_(wrq.buffer != None, "Buffer populated")
wrq.decode()
self.assertEqual(wrq.opcode, 2, "Opcode correct")
self.assertEqual(wrq.filename, "myfilename", "Filename correct")
self.assertEqual(wrq.mode, "octet", "Mode correct")
self.assertEqual(wrq.options['blksize'], '1024', "Blksize correct")
def testTftpPacketDAT(self):
log.debug("===> Running testcase testTftpPacketDAT")
dat = tftpy.TftpPacketDAT()
dat.blocknumber = 5
data = "this is some data"
dat.data = data
dat.encode()
self.assert_(dat.buffer != None, "Buffer populated")
dat.decode()
self.assertEqual(dat.opcode, 3, "DAT opcode is correct")
self.assertEqual(dat.blocknumber, 5, "Block number is correct")
self.assertEqual(dat.data, data, "DAT data is correct")
def testTftpPacketACK(self):
log.debug("===> Running testcase testTftpPacketACK")
ack = tftpy.TftpPacketACK()
ack.blocknumber = 6
ack.encode()
self.assert_(ack.buffer != None, "Buffer populated")
ack.decode()
self.assertEqual(ack.opcode, 4, "ACK opcode is correct")
self.assertEqual(ack.blocknumber, 6, "ACK blocknumber correct")
def testTftpPacketERR(self):
log.debug("===> Running testcase testTftpPacketERR")
err = tftpy.TftpPacketERR()
err.errorcode = 4
err.encode()
self.assert_(err.buffer != None, "Buffer populated")
err.decode()
self.assertEqual(err.opcode, 5, "ERR opcode is correct")
self.assertEqual(err.errorcode, 4, "ERR errorcode is correct")
def testTftpPacketOACK(self):
log.debug("===> Running testcase testTftpPacketOACK")
oack = tftpy.TftpPacketOACK()
# Test that if we make blksize a number, it comes back a string.
oack.options = { 'blksize': 2048 }
oack.encode()
self.assert_(oack.buffer != None, "Buffer populated")
oack.decode()
self.assertEqual(oack.opcode, 6, "OACK opcode is correct")
self.assertEqual(oack.options['blksize'],
'2048',
"OACK blksize option is correct")
# Test string to string
oack.options = { 'blksize': '4096' }
oack.encode()
self.assert_(oack.buffer != None, "Buffer populated")
oack.decode()
self.assertEqual(oack.opcode, 6, "OACK opcode is correct")
self.assertEqual(oack.options['blksize'],
'4096',
"OACK blksize option is correct")
def testTftpPacketFactory(self):
log.debug("===> Running testcase testTftpPacketFactory")
# Make sure that the correct class is created for the correct opcode.
classes = {
1: tftpy.TftpPacketRRQ,
2: tftpy.TftpPacketWRQ,
3: tftpy.TftpPacketDAT,
4: tftpy.TftpPacketACK,
5: tftpy.TftpPacketERR,
6: tftpy.TftpPacketOACK
}
factory = tftpy.TftpPacketFactory()
for opcode in classes:
self.assert_(isinstance(factory._TftpPacketFactory__create(opcode),
classes[opcode]),
"opcode %d returns the correct class" % opcode)
class TestTftpyState(unittest.TestCase):
def setUp(self):
tftpy.setLogLevel(logging.DEBUG)
def testServerNoOptions(self):
"""Test the server states."""
raddress = '127.0.0.2'
rport = 10000
timeout = 5
root = os.path.dirname(os.path.abspath(__file__))
# Testing without the dyn_func_file set.
serverstate = tftpy.TftpContextServer(raddress,
rport,
timeout,
root)
self.assertTrue( isinstance(serverstate,
tftpy.TftpContextServer) )
rrq = tftpy.TftpPacketRRQ()
rrq.filename = '100KBFILE'
rrq.mode = 'octet'
rrq.options = {}
# Start the download.
serverstate.start(rrq.encode().buffer)
# At a 512 byte blocksize, this should be 200 packets exactly.
for block in range(1, 201):
# Should be in expectack state.
self.assertTrue( isinstance(serverstate.state,
tftpy.TftpStateExpectACK) )
ack = tftpy.TftpPacketACK()
ack.blocknumber = block
serverstate.state = serverstate.state.handle(ack, raddress, rport)
# The last DAT packet should be empty, indicating a completed
# transfer.
ack = tftpy.TftpPacketACK()
ack.blocknumber = 201
finalstate = serverstate.state.handle(ack, raddress, rport)
self.assertTrue( finalstate is None )
if __name__ == '__main__':
unittest.main()
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