# OpenThings_test.py  21/05/2016  D.J.Whale
#
# Test harness for OpenThings protocol encoder and decoder

#TODO: Turn this into unittest.TestCase


from OpenThings import *
import pprint
import unittest


def printhex(payload):
	line = ""
	for b in payload:
		line += hex(b) + " "

	print(line)


TEST_PAYLOAD = [
	0x1C, 						#len   16 + 10 + 2  = 0001 1100
	0x04, 						#mfrid
	0x02, 						#prodid
	0x01, 						#pipmsb
	0x00, 						#piplsb
	0x00, 0x06, 0x8B,        	#sensorid
	0x70, 0x82, 0x00, 0x07, 	#SINT(2)     power
	0x71, 0x82, 0xFF, 0xFD,     #SINT(2)     reactive_power
	0x76, 0x01, 0xF0,    		#UINT(1)     voltage
	0x66, 0x22, 0x31, 0xDA,		#UINT_BP8(2) freq
	0x73, 0x01, 0x01,			#UINT(1)     switch_state
	0x00,						#NUL
	0x97, 0x64					#CRC

]



def test_payload_unencrypted():
	init(242)

	printhex(TEST_PAYLOAD)
	spec = decode(TEST_PAYLOAD, decrypt=False)
	pprint.pprint(spec)

	payload = encode(spec, encrypt=False)
	printhex(payload)

	spec2 = decode(payload, decrypt=False)
	pprint.pprint(spec2)

	payload2 = encode(spec2, encrypt=False)

	printhex(TEST_PAYLOAD)
	printhex(payload2)

	if TEST_PAYLOAD != payload:
		print("FAILED")
	else:
		print("PASSED")


def test_payload_encrypted():
	init(242)

	printhex(TEST_PAYLOAD)
	spec = decode(TEST_PAYLOAD, decrypt=False)
	pprint.pprint(spec)

	payload = encode(spec, encrypt=True)
	printhex(payload)

	spec2 = decode(payload, decrypt=True)
	pprint.pprint(spec2)

	payload2 = encode(spec2, encrypt=False)

	printhex(TEST_PAYLOAD)
	printhex(payload2)

	if TEST_PAYLOAD != payload:
		print("FAILED")
	else:
		print("PASSED")


def test_value_encoder():
	pass
	# test cases (auto, forced, overflow, -min, -min-1, 0, 1, +max, +max+1
	# UINT
	# UINT_BP4
	# UINT_BP8
	# UINT_BP12
	# UINT_BP16
	# UINT_BP20
	# UINT_BP24
	# SINT
	# SINT(2)
	vin = [1,255,256,32767,32768,0,-1,-2,-3,-127,-128,-129,-32767,-32768]
	for v in vin:
		vout = Value.encode(v, Value.SINT)
		print("encode " + str(v) + " " + str(vout))
	# SINT_BP8
	# SINT_BP16
	# SINT_BP24
	# CHAR
	# FLOAT


def test_value_decoder():
	pass
	# test cases (auto, forced, overflow, -min, -min-1, 0, 1, +max, +max+1
	# UINT
	# UINT_BP4
	# UINT_BP8
	# UINT_BP12
	# UINT_BP16
	# UINT_BP20
	# UINT_BP24
	# SINT
	vin = [255, 253]
	print("input value:" + str(vin))
	vout = Value.decode(vin, Value.SINT, 2)
	print("encoded as:" + str(vout))

	# SINT_BP8
	# SINT_BP16
	# SINT_BP24
	# CHAR
	# FLOAT


#----- UNIT TEST FOR MESSAGE --------------------------------------------------

import Devices

# ACCESSOR VARIANTS
#  as method parameters:
#     1  {pydict}
#
#     2  header={pydict}
#     3  header_mfrid=123
#     4  recs_0={pydict}
#     5  recs_0_paramid=PARAM_SWITCH_STATE
#     6  SWITCH_STATE={pydict}
#     7  SWITCH_STATE,value=1
#     8  SWITCH_STATE_value=1
#
#  as attribute accessors
#     9  msg["header"]  msg["recs"][0]
#     10 msg[PARAM_SWITCH_STATE]


#TODO: Break dependence on Devices.MIHO005_REPORT (makes tests brittle)
#i.e. put a test vector in this test harness
#TODO: Capture and compare outputs from each method (using decorators??)

def test_0(m):
	#print("test disabled:%s" % m)
	def nothing(*args, **kwargs):
		print("test disabled:%s" % m)
		return None
	return nothing

def test_1(m):
	def run(*args, **kwargs):
		print("running:%s" % m)
		r = m(*args, **kwargs)
		print("finished:%s" % m)
		return r
	
	return run


class TestMessage(unittest.TestCase):

	@test_0
	def test_blank(self):
		"""CREATE a completely blank message"""
		msg = Message()
		print(msg)
		msg.dump()

	@test_0
	def test_blank_template(self):
		"""CREATE a message from a simple pydict template"""
		# This is useful to simplify all other tests
		msg = Message(Message.BLANK)
		print(msg)
		msg.dump()

	@test_0
	def test_blank_create_dict(self): #1 {pydict}
		"""CREATE a blank message with a dict parameter"""
		msg = Message({"header":{}, "recs":[{"wr":False, "parmid":PARAM_SWITCH_STATE, "value":1}]})
		print(msg)
		msg.dump()

	@test_0
	def test_blank_create_header_dict(self): #2 header={pydict}
		"""CREATE a blank message and add a header at creation time from a dict"""
		msg = Message(header={"mfrid":123, "productid":456, "sensorid":789})
		print(msg)
		msg.dump()

	@test_0
	def test_create_big_template(self): #1 {pydict}
		"""CREATE from a large template message"""
		# create a message from a template
		msg = Message(Devices.MIHO005_REPORT)
		print(msg)
		msg.dump()

	@test_0
	def test_add_rec_dict(self): #1 {pydict}
		"""UPDATE(APPEND) rec fields from a dict parameter"""
		msg = Message(Message.BLANK)
		i = msg.append_rec({"paramid":PARAM_SWITCH_STATE, "wr":True, "value":1})
		print("added index:%d" % i)
		print(msg)
		msg.dump()

	@test_0
	def test_add_header_dict(self): #2 header={pydict}
		"""UPDATE(SET) a new header to an existing message"""
		msg = Message()
		msg.set(header={"mfrid":123, "productid":456, "sensorid":789})
		print(msg)
		msg.dump()

	@test_0
	def test_add_recs_dict(self):
		"""UPDATE(SET) recs to an existing message"""
		msg = Message()
		msg.set(recs=[{"paramid":PARAM_SWITCH_STATE, "wr":True, "value":1}])
		print(msg)
		msg.dump()

	@test_0
	def test_add_path(self):
		"""UPDATE(SET) a pathed key to an existing message"""
		msg = Message()
		msg.set(header_productid=1234)
		print(msg)
		msg.dump()

	@test_0
	def test_alter_template(self): #3 header_mfrid=123
		"""UPDATE(SET) an existing key with a path"""
		msg = Message(Devices.MIHO005_REPORT)
		msg.set(header_productid=123)
		print(msg)
		msg.dump()

	@test_0
	def test_alter_template_multiple(self):
		"""UPDATE(SET) multiple keys with paths"""
		msg = Message(Devices.MIHO005_REPORT)
		msg.set(header_productid=123, header_sensorid=99)
		print(msg)
		msg.dump()

	@test_0
	def test_blank_create_header_paths(self): #3 header_mfrid=123    (CREATE)
		"""CREATE message with pathed keys in constructor"""
		msg = Message(header_mfrid=123, header_productid=456, header_sensorid=789)
		print(msg)
		msg.dump()

	@test_0
	def test_blank_create_recs_paths(self):
		"""CREATE message with pathed keys in constructor"""
		# uses integer path component to mean array index
		msg = Message(recs_0={"paramid":PARAM_SWITCH_STATE, "wr":True, "value":1},
					  recs_1={"paramid":PARAM_AIR_PRESSURE, "wr":True, "value":2})
		print(msg)
		msg.dump()

	@test_0
	def test_add_rec_path(self): #5 recs_0_paramid=PARAM_SWITCH_STATE
		"""UPDATE(SET) records in a message"""
		msg = Message(recs_0={}) # must create rec before you can change it
		print(msg.pydict)
		msg.set(recs_0_paramid=PARAM_SWITCH_STATE, recs_0_value=1, recs_0_wr=True)
		print(msg)
		msg.dump()

	@test_0
	def test_add_rec_fn_pydict(self): #6 SWITCH_STATE={pydict}
		"""UPDATE(ADD) a rec to message using PARAM constants as keys"""
		#always creates a new rec at the end and then populates
		msg = Message()
		msg.append_rec(PARAM_SWITCH_STATE, {"wr": True, "value":1})
		print(msg)
		msg.dump()

	@test_0
	def test_add_rec_fn_keyed(self): #7 SWITCH_STATE,value=1    (ADD)
		"""UPDATE(ADD) a rec to message using PARAM const and keyed values"""
		msg = Message()
		msg.append_rec(PARAM_SWITCH_STATE, wr=True, value=1)
		print(msg)
		msg.dump()

	@test_0
	def test_get_pathed(self):
		"""READ from the message with a path key"""
		msg = Message(Devices.MIHO005_REPORT)
		print(msg.get("header_mfrid"))

	@test_0
	def test_attr_header(self): #9 msg["header"]  msg["recs"][0]
		"""READ(attr) the header"""
		## access a specific keyed entry like a normal pydict, for read
		msg = Message(Devices.MIHO005_REPORT)
		print(msg["header"])

	@test_0
	def test_attr_header_field(self): #9 msg["header"]  msg["recs"][0]
		"""READ(attr) a field within the header"""
		## access a specific keyed entry like a normal pydict, for read
		msg = Message(Devices.MIHO005_REPORT)
		print(msg["header"]["mfrid"])

	@test_0
	def test_attr_recs(self): #9 msg["header"]  msg["recs"][0]
		"""READ(attr) all recs"""
		## access a specific keyed entry like a normal pydict, for read
		msg = Message(Devices.MIHO005_REPORT)
		print(msg["recs"])

	@test_0
	def test_attr_rec(self): #9 msg["header"]  msg["recs"][0]
		"""READ(attr) a single reg"""
		## access a specific keyed entry like a normal pydict, for read
		msg = Message(Devices.MIHO005_REPORT)
		print(msg["recs"][0])

	@test_0
	def test_attr_rec_field(self): #9 msg["header"]  msg["recs"][0]
		"""READ(attr) a field in a rec"""
		## access a specific keyed entry like a normal pydict, for read
		msg = Message(Devices.MIHO005_REPORT)
		print(msg["recs"][0]["value"])

	@test_0
	def test_setattr_header(self):
		"""UPDATE(SET) the header from a setattr key index"""
		msg = Message(Devices.MIHO005_REPORT)
		msg["header"] = {"mfrid":111, "productid":222, "sensorid":333}
		print(msg)

	@test_0
	def test_setattr_header_field_overwrite(self):
		"""UPDATE(SET) overwrite an existing header field"""
		msg = Message(Devices.MIHO005_REPORT)
		msg["header"]["productid"] = 999
		print(msg)

	@test_0
	def test_setattr_header_field_add(self):
		"""UPDATE(SET) add a new header field"""
		msg = Message(Devices.MIHO005_REPORT)
		msg["header"]["timestamp"] = 1234
		print(msg)

	@test_0
	def test_setattr_recs(self):
		"""UPDATE(SET) overwrite all recs"""
		msg = Message(Devices.MIHO005_REPORT)
		msg["recs"] = [ {"paramid":PARAM_SWITCH_STATE, "wr":True, "value":1},
						{"paramid":PARAM_AIR_PRESSURE, "wr":True, "value":33}]
		print(msg)

	@test_0
	def test_setattr_rec_overwrite(self):
		"""UPDATE(SET) overwrite a single rec"""
		msg = Message(Devices.MIHO005_REPORT)
		msg["recs"][0] = {"paramid":9999, "wr":False, "value":9999}
		print(msg)

	@test_0
	def test_setattr_rec_append(self):
		"""UPDATE(SET) add a new rec by appending"""
		msg = Message(Devices.MIHO005_REPORT)
		msg["recs"].append({"paramid":9999, "wr":True, "value":9999})
		print(msg)

	@test_0
	def Xtest_setattr_rec_field_overwrite(self):
		"""UPDATE(SET) overwrite an existing rec field"""
		msg = Message(Devices.MIHO005_REPORT)
		msg["recs"][0]["value"] = 9999
		print(msg)

	@test_0
	def test_setattr_rec_field_append(self):
		"""UPDATE(SET) append a new field"""
		msg = Message(Devices.MIHO005_REPORT)
		msg["recs"][0]["colour"] = "**RED**"
		print(msg)

	@test_0
	def test_paramid_read_rec(self): #10 msg[PARAM_SWITCH_STATE]
		"""READ a rec field keyed by the PARAMID"""
		#This triggers a sequential search through the recs for the first matching paramid
		msg = Message(Devices.MIHO005_REPORT)
		print(msg[PARAM_SWITCH_STATE])

	@test_0
	def test_paramid_read_missing_rec(self): #10 msg[PARAM_SWITCH_STATE]
		"""READ a rec field keyed by the PARAMID"""
		#This triggers a sequential search through the recs for the first matching paramid
		msg = Message(Devices.MIHO005_REPORT)
		try:
			print(msg[PARAM_AIR_PRESSURE])
			self.fail("Did not get expected exception")
		except Exception as e:
			pass #expected

	@test_0
	def test_paramid_read_field(self):
		"""READ a field within a parameter rec"""
		msg = Message(Devices.MIHO005_REPORT)
		print(msg[PARAM_SWITCH_STATE]["value"])

	@test_0
	def test_paramid_write_rec_overwrite(self):
		"""WRITE (overwrite) a whole paramid rec"""
		msg = Message(recs_0={"paramid":PARAM_SWITCH_STATE, "wr":True, "value":33})
		#print(msg)
		msg[PARAM_SWITCH_STATE] = {"wr":True, "value":99}
		##print(msg)
		print(msg[PARAM_SWITCH_STATE])

	@test_0
	def test_paramid_write_rec_add(self):
		"""WRITE (add) a whole paramid rec"""
		msg = Message(Devices.MIHO005_REPORT)
		msg[PARAM_AIR_PRESSURE] = {"wr":True, "value":1}
		#print(msg)
		print(msg[PARAM_AIR_PRESSURE])

	@test_0
	def test_paramid_write_field_change(self):
		"""WRITE (change) a field in a paramid rec"""
		msg = Message(recs_0={"paramid":PARAM_SWITCH_STATE, "wr":True, "value":33})
		msg[PARAM_SWITCH_STATE]["value"] = 123
		print(msg)

	@test_1
	def test_paramid_write_field_add(self):
		"""WRITE(add) a field to a paramid rec"""
		msg = Message(Devices.MIHO005_REPORT)
		msg[PARAM_SWITCH_STATE]["colour"] = "***RED***"
		print(msg)

	#----- HERE -----



	#-----
	# dump and display
	##TODO: This is where dump() might need to dump to a strbuf and then output
	#some of these might just print the inner pydict though

	@test_0
	def test_repr(self):
		## dump a message in printable format
		msg = Message(Devices.MIHO005_REPORT)
		print(msg)

	@test_0
	def test_str(self):
		## dump a message in printable format
		msg = Message(Devices.MIHO005_REPORT)
		print(str(msg))

	#-----
	# PARAMNAME aware paths
	####TODO: This is where we need an intelligent key parser

	@test_0
	def test_alter_rec_template_paramname(self): #8 SWITCH_STATE_value=1    (CHANGE)
		# alter rec fields in a template
		msg = Message(Devices.MIHO005_REPORT)
		msg.set(recs_SWITCH_STATE_value=1)
		msg.dump()



def test_message():
	import unittest
	unittest.main()

if __name__ == "__main__":
	##TODO: Change these into unittest test cases
	##test_value_encoder()
	##test_value_decoder()
	##test_payload_unencrypted()
	##test_payload_encrypted()

	test_message()

# END