#!/usr/bin/env python

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# Licensed to the Apache Software Foundation (ASF) under one
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# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
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#
#   http://www.apache.org/licenses/LICENSE-2.0
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from DebugProtoTest.ttypes import CompactProtoTestStruct, Empty, Wrapper
from thrift.Thrift import TFrozenDict
from thrift.transport import TTransport
from thrift.protocol import TBinaryProtocol
import collections
import unittest


class TestFrozenBase(unittest.TestCase):
  def _roundtrip(self, src, dst):
    otrans = TTransport.TMemoryBuffer()
    optoro = self.protocol(otrans)
    src.write(optoro)
    itrans = TTransport.TMemoryBuffer(otrans.getvalue())
    iproto = self.protocol(itrans)
    return dst.read(iproto) or dst

  def test_dict_is_hashable_only_after_frozen(self):
    d0 = {}
    self.assertFalse(isinstance(d0, collections.Hashable))
    d1 = TFrozenDict(d0)
    self.assertTrue(isinstance(d1, collections.Hashable))

  def test_struct_with_collection_fields(self):
    pass

  def test_set(self):
    """Test that annotated set field can be serialized and deserialized"""
    x = CompactProtoTestStruct(set_byte_map={
      frozenset([42, 100, -100]): 99,
      frozenset([0]): 100,
      frozenset([]): 0,
    })
    x2 = self._roundtrip(x, CompactProtoTestStruct())
    self.assertEqual(x2.set_byte_map[frozenset([42, 100, -100])], 99)
    self.assertEqual(x2.set_byte_map[frozenset([0])], 100)
    self.assertEqual(x2.set_byte_map[frozenset([])], 0)

  def test_map(self):
    """Test that annotated map field can be serialized and deserialized"""
    x = CompactProtoTestStruct(map_byte_map={
      TFrozenDict({42: 42, 100: -100}): 99,
      TFrozenDict({0: 0}): 100,
      TFrozenDict({}): 0,
    })
    x2 = self._roundtrip(x, CompactProtoTestStruct())
    self.assertEqual(x2.map_byte_map[TFrozenDict({42: 42, 100: -100})], 99)
    self.assertEqual(x2.map_byte_map[TFrozenDict({0: 0})], 100)
    self.assertEqual(x2.map_byte_map[TFrozenDict({})], 0)

  def test_list(self):
    """Test that annotated list field can be serialized and deserialized"""
    x = CompactProtoTestStruct(list_byte_map={
      (42, 100, -100): 99,
      (0,): 100,
      (): 0,
    })
    x2 = self._roundtrip(x, CompactProtoTestStruct())
    self.assertEqual(x2.list_byte_map[(42, 100, -100)], 99)
    self.assertEqual(x2.list_byte_map[(0,)], 100)
    self.assertEqual(x2.list_byte_map[()], 0)

  def test_empty_struct(self):
    """Test that annotated empty struct can be serialized and deserialized"""
    x = CompactProtoTestStruct(empty_struct_field=Empty())
    x2 = self._roundtrip(x, CompactProtoTestStruct())
    self.assertEqual(x2.empty_struct_field, Empty())

  def test_struct(self):
    """Test that annotated struct can be serialized and deserialized"""
    x = Wrapper(foo=Empty())
    self.assertEqual(x.foo, Empty())
    x2 = self._roundtrip(x, Wrapper)
    self.assertEqual(x2.foo, Empty())


class TestFrozen(TestFrozenBase):
  def protocol(self, trans):
    return TBinaryProtocol.TBinaryProtocolFactory().getProtocol(trans)


class TestFrozenAccelerated(TestFrozenBase):
  def protocol(self, trans):
    return TBinaryProtocol.TBinaryProtocolAcceleratedFactory().getProtocol(trans)


def suite():
  suite = unittest.TestSuite()
  loader = unittest.TestLoader()
  suite.addTest(loader.loadTestsFromTestCase(TestFrozen))
  suite.addTest(loader.loadTestsFromTestCase(TestFrozenAccelerated))
  return suite

if __name__ == "__main__":
  unittest.main(defaultTest="suite", testRunner=unittest.TextTestRunner(verbosity=2))