#  
#  Copyright (c) 2011 Edward Langley
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#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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import json
from twisted.trial import unittest
import collections

from jsonrpc import jsonutil

class testobj(object):
	value = 'This is the json value'
	def json_equivalent(self): return self.value

class TestJSONUTIL(unittest.TestCase):

	def setUp(self):
		# simple tests
		self.lis = [1,2,3]
		self.jlis = json.dumps(self.lis)
		self.int = 1
		self.jint = json.dumps(self.int)
		self.str = 'asdasd'
		self.jstr = json.dumps(self.str)
		self.none = None
		self.jnone = json.dumps(self.none)

		# more complicated tests
		self.obj1 = dict(a=1,b=2,c=3)
		self.jobj1 = json.dumps(self.obj1)
		self.obj2 = dict(a=[1,2,3],b={2:2,3:3,4:4},c=(3,4,5))
		self.jobj2 = json.dumps(self.obj2)

		# extended functionality
		self.obj3 = dict(a=set([1]),b=frozenset([2]),c=[1,2,3])
		self.obj3_roundtrip = dict( (k,list(v)) for k,v in self.obj3.items())

		self.obj4 = testobj()
		self.jobj4 = json.dumps(testobj.value)

	def test_encode(self):
		self.assertEqual(jsonutil.encode(self.lis), self.jlis)
		self.assertEqual(jsonutil.encode(self.int), self.jint)
		self.assertEqual(jsonutil.encode(self.str), self.jstr)
		self.assertEqual(jsonutil.encode(self.none), self.jnone)

		self.assertEqual(jsonutil.encode(self.obj1), self.jobj1)
		self.assertEqual(jsonutil.encode(self.obj2), self.jobj2)
		self.assertEqual(jsonutil.encode(self.obj4), self.jobj4)

	def test_decode(self):
		self.assertEqual(jsonutil.decode(self.jlis), self.lis)
		self.assertEqual(jsonutil.decode(self.jint), self.int)
		self.assertEqual(jsonutil.decode(self.jstr), self.str)
		self.assertEqual(jsonutil.decode(self.jnone), self.none)

		self.assertEqual(jsonutil.decode(self.jobj1), self.obj1)
		self.assertEqual(jsonutil.decode(self.jobj2), json.loads(self.jobj2))
		self.assertEqual(jsonutil.decode(self.jobj4), testobj.value)

	def test_roundtrip(self):
		self.assertEqual(jsonutil.decode(jsonutil.encode(self.lis)), self.lis)
		self.assertEqual(jsonutil.decode(jsonutil.encode(self.int)), self.int)
		self.assertEqual(jsonutil.decode(jsonutil.encode(self.str)), self.str)
		self.assertEqual(jsonutil.decode(jsonutil.encode(self.none)), self.none)

		self.assertEqual(jsonutil.decode(jsonutil.encode(self.obj3)), self.obj3_roundtrip)

if __name__ == '__main__':
	unittest.main()