#
 #  Copyright (c) 2011 Edward Langley
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 from twisted.trial import unittest
 import StringIO
 
 import mock
 
 import jsonrpc.server
 import jsonrpc.jsonutil
 
 from twisted.web.test.test_web import DummyRequest

 from twisted.internet.defer import succeed, DeferredList

 from twisted.web.static import server
 
 def _render(resource, request):
     result = resource.render(request)
     if isinstance(result, str):
         request.write(result)
         request.finish()
         return succeed(None)
     elif result is server.NOT_DONE_YET:
         if request.finished:
             return succeed(None)
         else:
             return request.notifyFinish()
     else:
         raise ValueError("Unexpected return value: %r" % (result,))
 
 class SimpleEventHandler(jsonrpc.server.ServerEvents):
 	def log(self, result, request): pass
 
 	def findmethod(self, method):
 		if method in set(['echo', 'add']):
 			return getattr(self, method)
 
 	def add(self, a,b):
 		return a+b
 
 	def echo(self, v): return v
 
 
 class TestJSONRPCServer(unittest.TestCase):
 
 	def setUp(self):
 		self.id_ = 'an_id'
 		self.param = "some data"
 

 	def test_eventhandler(self):
 		resource = jsonrpc.server.JSON_RPC()
 		resource.eventhandler = mock.Mock(jsonrpc.server.ServerEvents)
 		resource.eventhandler.findmethod.return_value = lambda *a, **b: 'test data'
 
 		rv = {"jsonrpc": "2.0", "params": [self.param], "method": "echo", "id": self.id_}
 		resource.eventhandler.processcontent.return_value = rv
 		resource.eventhandler.processrequest.return_value = rv
 
 		request = DummyRequest([''])
 		request.getCookie = mock.Mock()
 		request.content = StringIO.StringIO(jsonrpc.jsonutil.encode(rv))
 
 		d = _render(resource, request)
 
 		@d.addCallback
 		def rendered(ignored):

 			self.assertTrue(resource.eventhandler.processcontent.called)
 			self.assertTrue(resource.eventhandler.callmethod.called)
 			self.assertTrue(resource.eventhandler.processrequest.called)
 			self.assertTrue(resource.eventhandler.log.called)

 
 		return d
 

 	def test_requestid(self):
 		resource = jsonrpc.server.JSON_RPC()
 		resource.customize(SimpleEventHandler)
 
 		request0 = DummyRequest([''])
 		request0.getCookie = mock.Mock()
 		request0.content = StringIO.StringIO('{"jsonrpc": "2.0", "params": %s, "method": "echo", "id": "%s"}' % (jsonrpc.jsonutil.encode([self.param]), self.id_))
 
 		d0 = _render(resource, request0)
 		@d0.addCallback
 		def rendered(ignored):
 			self.assertEqual(len(request0.written), 1)
 			data = jsonrpc.jsonutil.decode(request0.written[0])
 
 			self.assertEqual(data["id"], self.id_)
 
 
 		request1 = DummyRequest([''])
 		request1.getCookie = mock.Mock()
 		request1.content = StringIO.StringIO('{"jsonrpc": "2.0", "params": %s, "method": "echo", "id": 1}' % jsonrpc.jsonutil.encode([self.param]))
 
 		d1 = _render(resource, request1)
 		@d1.addCallback
 		def rendered(ignored):
 			self.assertEqual(len(request1.written), 1)
 			data = jsonrpc.jsonutil.decode(request1.written[0])
 
 			self.assertEqual(data["id"], 1)
 
 
 		request3 = DummyRequest([''])
 		request3.getCookie = mock.Mock()
 		request3.content = StringIO.StringIO('{"jsonrpc": "2.0", "params": %s, "method": "echo", "id": []}' % jsonrpc.jsonutil.encode([self.param]))
 
 		d3 = _render(resource, request3)
 		@d3.addCallback
 		def rendered(ignored):
 			self.assertEqual(len(request3.written), 1)
 			data = jsonrpc.jsonutil.decode(request3.written[0])
 
 			self.assertNotEqual(data["id"], [])
 
 		request4 = DummyRequest([''])
 		request4.getCookie = mock.Mock()
 		request4.content = StringIO.StringIO('{"jsonrpc": "2.0", "params": %s, "method": "echo", "id": {}}' % jsonrpc.jsonutil.encode([self.param]))
 
 		d4 = _render(resource, request4)
 		@d4.addCallback
 		def rendered(ignored):
 			self.assertEqual(len(request4.written), 1)
 			data = jsonrpc.jsonutil.decode(request4.written[0])
 
 			self.assertNotEqual(data["id"], {})
 
 		return DeferredList([d0,d1,d3,d4])
 

 	def test_invalid_data(self):
 		resource = jsonrpc.server.JSON_RPC()
 		resource.customize(SimpleEventHandler)
 
 		request = DummyRequest([''])
 		request.getCookie = mock.Mock()
 		request.content = StringIO.StringIO(' {"v": %s}, "method": "echo"}' % (jsonrpc.jsonutil.encode(self.param)))
 
 		d = _render(resource, request)
 
 		@d.addCallback
 		def rendered(ignored):

 			self.assertEqual(len(request.written), 1)

 			data = jsonrpc.jsonutil.decode(request.written[0])
 

 			self.assertEqual(data, {"jsonrpc": "2.0", "error": {"code": -32700, "message": "Parse error."}, "id": None})

 
 		return d
 
 	def test_wrongversion(self):
 		resource = jsonrpc.server.JSON_RPC()
 		resource.customize(SimpleEventHandler)
 
 		request = DummyRequest([''])
 		request.getCookie = mock.Mock()
 		request.content = StringIO.StringIO('{"jsonrpc": "2.1", "params": %s, "method": "echo", "id": "%s"}' % (jsonrpc.jsonutil.encode([self.param]), self.id_))
 
 		d = _render(resource, request)
 
 		@d.addCallback
 		def rendered(ignored):

 			self.assertEqual(len(request.written), 1)

 			data = jsonrpc.jsonutil.decode(request.written[0])

 			self.assertEqual(data, {"jsonrpc": "2.0", "error": {"code": -32600, "message": "Invalid Request."}, "id": self.id_})

 		return d
 
 
 	def test_invalidmethodname(self):
 		resource = jsonrpc.server.JSON_RPC()
 		resource.customize(SimpleEventHandler)
 
 		request = DummyRequest([''])
 		request.getCookie = mock.Mock()
 		request.content = StringIO.StringIO('{"jsonrpc": "2.0", "params": %s, "method": 0, "id": "%s"}' % (jsonrpc.jsonutil.encode([self.param]), self.id_))
 
 		d = _render(resource, request)
 
 		@d.addCallback
 		def rendered(ignored):

 			self.assertEqual(len(request.written), 1)

 			data = jsonrpc.jsonutil.decode(request.written[0])

 			self.assertEqual(data, {"jsonrpc": "2.0", "error": {"code": -32600, "message": "Invalid Request."}, "id": self.id_})

 		return d
 
 	def test_missingmethod(self):
 		resource = jsonrpc.server.JSON_RPC()
 		resource.customize(SimpleEventHandler)
 
 		request = DummyRequest([''])
 		request.getCookie = mock.Mock()
 		request.content = StringIO.StringIO('{"jsonrpc": "2.0", "params": %s, "method": "non_existent", "id": "%s"}' % (jsonrpc.jsonutil.encode([self.param]), self.id_))
 
 		d = _render(resource, request)
 
 		@d.addCallback
 		def rendered(ignored):

 			self.assertEqual(len(request.written), 1)

 			data = jsonrpc.jsonutil.decode(request.written[0])

 			self.assertEqual(data, {"jsonrpc": "2.0", "error": {"code": -32601, "message": "Procedure not found."}, "id": self.id_})

 		return d
 
 
 
 	def test_simplecall(self):
 		resource = jsonrpc.server.JSON_RPC()
 		resource.customize(SimpleEventHandler)
 
 		request = DummyRequest([''])
 		request.getCookie = mock.Mock()
 		request.content = StringIO.StringIO('{"jsonrpc": "2.0", "params": %s, "method": "echo", "id": "%s"}' % (jsonrpc.jsonutil.encode([self.param]), self.id_))
 
 		d = _render(resource, request)
 
 		@d.addCallback
 		def rendered(ignored):

 			self.assertEqual(len(request.written), 1)

 			data = jsonrpc.jsonutil.decode(request.written[0])
 

 			self.assertEqual(data['id'], self.id_)
 			self.assertEqual(data['result'], self.param)

 		return d
 
 	def test_notify(self):
 		resource = jsonrpc.server.JSON_RPC()
 		resource.customize(SimpleEventHandler)
 
 		request = DummyRequest([''])
 		request.getCookie = mock.Mock()
 		request.content = StringIO.StringIO('{"jsonrpc": "2.0", "params": {"v": %s}, "method": "echo"}' % (jsonrpc.jsonutil.encode(self.param)))
 
 		d = _render(resource, request)
 
 		@d.addCallback
 		def rendered(ignored):

 			self.assertEqual(len(request.written), 0)

 
 		return d
 
 
 	def test_kwcall(self):
 		resource = jsonrpc.server.JSON_RPC()
 		resource.customize(SimpleEventHandler)
 
 		request = DummyRequest([''])
 		request.getCookie = mock.Mock()
 		request.content = StringIO.StringIO('{"jsonrpc": "2.0", "params": {"v": %s}, "method": "echo", "id": "%s"}' % (jsonrpc.jsonutil.encode(self.param), self.id_))
 
 		d = _render(resource, request)
 
 		@d.addCallback
 		def rendered(ignored):

 			self.assertEqual(len(request.written), 1)

 			data = jsonrpc.jsonutil.decode(request.written[0])
 

 			self.assertEqual(data['id'], self.id_)
 			self.assertEqual(data['result'], self.param)

 
 		return d
 
 
 	def test_err(self):
 		resource = jsonrpc.server.JSON_RPC()
 		resource.customize(SimpleEventHandler)
 
 		request = DummyRequest([''])
 		request.getCookie = mock.Mock()
 		request.content = StringIO.StringIO('{"jsonrpc": "2.0", "params": [1, "sss"], "method": "add", "id": "%s"}' % self.id_)
 
 		d = _render(resource, request)
 
 		@d.addCallback
 		def rendered(ignored, *a):

 			self.assertEqual(len(request.written), 1)

 			data = jsonrpc.jsonutil.decode(request.written[0])
 

 			self.assertEqual(data['id'], self.id_)
 			self.assertTrue(data.get('error', False))

 		return rendered
 
 	def test_batchcall(self):
 		resource = jsonrpc.server.JSON_RPC()
 		resource.customize(SimpleEventHandler)
 
 		request = DummyRequest([''])
 		request.content = StringIO.StringIO(
 			'[{"jsonrpc": "2.0", "params": [1, 2], "method": "add", "id": "1"},'
 				'{"jsonrpc": "2.0", "params": {"a": 3, "b": 2}, "method": "add", "id": "2"}]'
 		)
 		request.getCookie = mock.Mock()
 
 		d = _render(resource, request)
 
 		@d.addCallback
 		def rendered(ignored, *a):

 			self.assertEqual(len(request.written), 1)

 			data = jsonrpc.jsonutil.decode(request.written[0])

 			self.assertEqual(len(data), 2)
 			self.assertEqual(set(x['id'] for x in data), set("12"))
 			self.assertEqual(set(x['result'] for x in data), set([3,5]))

 			self.assertFalse(any(x.get('error', False) for x in data))

 		return rendered
 
 	def test_batchcall_1err(self):
 		resource = jsonrpc.server.JSON_RPC()
 		resource.customize(SimpleEventHandler)
 
 		request = DummyRequest([''])
 		request.content = StringIO.StringIO(
 			'[{"jsonrpc": "2.0", "params": [1, 2], "method": "add", "id": "1"},'
 				'{"jsonrpc": "2.0", "params": {"a": "3", "b": 2}, "method": "add", "id": "2"}]'
 		)
 		request.getCookie = mock.Mock()
 
 		d = _render(resource, request)
 
 		@d.addCallback
 		def rendered(ignored, *a):

 			self.assertEqual(len(request.written), 1)

 			data = jsonrpc.jsonutil.decode(request.written[0])

 			self.assertEqual(len(data), 2)
 			self.assertEqual(set(x['id'] for x in data), set("12"))
 			self.assertEqual(set(x.get('result', False) for x in data), set([3,False]))

 			self.assertEqual(len(filter(None, [x.get('error') for x in data])), 1)

 		return rendered
 
 
 	def test_batchcall_emptylist(self):
 		resource = jsonrpc.server.JSON_RPC()
 		resource.customize(SimpleEventHandler)
 
 		request = DummyRequest([''])
 
 		request.content = StringIO.StringIO('[]')
 		request.getCookie = mock.Mock()
 
 		d = _render(resource, request)
 
 		@d.addCallback
 		def rendered(ignored, *a):
 			data = jsonrpc.jsonutil.decode(request.written[0])

 			self.assertEqual(data, {"jsonrpc": "2.0", "error": {"code": -32600, "message": "Invalid Request."}, "id": None})

 		return rendered