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 python-310

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test_orderedmap.py

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# Copyright 2013-2016 DataStax, Inc.

#

# Licensed under the Apache License, Version 2.0 (the "License");

# you may not use this file except in compliance with the License.

# You may obtain a copy of the License at

#

# http://www.apache.org/licenses/LICENSE-2.0

#

# Unless required by applicable law or agreed to in writing, software

# distributed under the License is distributed on an "AS IS" BASIS,

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

# See the License for the specific language governing permissions and

# limitations under the License.

try:

import unittest2 as unittest

except ImportError:

import unittest # noqa

from cassandra.util import OrderedMap, OrderedMapSerializedKey

from cassandra.cqltypes import EMPTY, UTF8Type, lookup_casstype

import six

class OrderedMapTest(unittest.TestCase):

def test_init(self):

a = OrderedMap(zip(['one', 'three', 'two'], [1, 3, 2]))

b = OrderedMap([('one', 1), ('three', 3), ('two', 2)])

c = OrderedMap(a)

builtin = {'one': 1, 'two': 2, 'three': 3}

self.assertEqual(a, b)

self.assertEqual(a, c)

self.assertEqual(a, builtin)

self.assertEqual(OrderedMap([(1, 1), (1, 2)]), {1: 2})

d = OrderedMap({'': 3}, key1='v1', key2='v2')

self.assertEqual(d[''], 3)

self.assertEqual(d['key1'], 'v1')

self.assertEqual(d['key2'], 'v2')

with self.assertRaises(TypeError):

OrderedMap('too', 'many', 'args')

def test_contains(self):

keys = ['first', 'middle', 'last']

om = OrderedMap()

om = OrderedMap(zip(keys, range(len(keys))))

for k in keys:

self.assertTrue(k in om)

self.assertFalse(k not in om)

self.assertTrue('notthere' not in om)

self.assertFalse('notthere' in om)

def test_keys(self):

keys = ['first', 'middle', 'last']

om = OrderedMap(zip(keys, range(len(keys))))

self.assertListEqual(list(om.keys()), keys)

def test_values(self):

keys = ['first', 'middle', 'last']

values = list(range(len(keys)))

om = OrderedMap(zip(keys, values))

self.assertListEqual(list(om.values()), values)

def test_items(self):

keys = ['first', 'middle', 'last']

items = list(zip(keys, range(len(keys))))

om = OrderedMap(items)

self.assertListEqual(list(om.items()), items)

def test_get(self):

keys = ['first', 'middle', 'last']

om = OrderedMap(zip(keys, range(len(keys))))

for v, k in enumerate(keys):

self.assertEqual(om.get(k), v)

self.assertEqual(om.get('notthere', 'default'), 'default')

self.assertIsNone(om.get('notthere'))

def test_equal(self):

d1 = {'one': 1}

d12 = {'one': 1, 'two': 2}

om1 = OrderedMap({'one': 1})

om12 = OrderedMap([('one', 1), ('two', 2)])

om21 = OrderedMap([('two', 2), ('one', 1)])

self.assertEqual(om1, d1)

self.assertEqual(om12, d12)

self.assertEqual(om21, d12)

self.assertNotEqual(om1, om12)

self.assertNotEqual(om12, om1)

self.assertNotEqual(om12, om21)

self.assertNotEqual(om1, d12)

self.assertNotEqual(om12, d1)

self.assertNotEqual(om1, EMPTY)

self.assertFalse(OrderedMap([('three', 3), ('four', 4)]) == d12)

def test_getitem(self):

keys = ['first', 'middle', 'last']

om = OrderedMap(zip(keys, range(len(keys))))

for v, k in enumerate(keys):

self.assertEqual(om[k], v)

with self.assertRaises(KeyError):

om['notthere']

def test_iter(self):

keys = ['first', 'middle', 'last']

values = list(range(len(keys)))

items = list(zip(keys, values))

om = OrderedMap(items)

itr = iter(om)

self.assertEqual(sum([1 for _ in itr]), len(keys))

self.assertRaises(StopIteration, six.next, itr)

self.assertEqual(list(iter(om)), keys)

self.assertEqual(list(six.iteritems(om)), items)

self.assertEqual(list(six.itervalues(om)), values)

def test_len(self):

self.assertEqual(len(OrderedMap()), 0)

self.assertEqual(len(OrderedMap([(1, 1)])), 1)

def test_mutable_keys(self):

d = {'1': 1}

s = set([1, 2, 3])

om = OrderedMap([(d, 'dict'), (s, 'set')])

def test_strings(self):

# changes in 3.x

d = {'map': 'inner'}

s = set([1, 2, 3])

self.assertEqual(repr(OrderedMap([('two', 2), ('one', 1), (d, 'value'), (s, 'another')])),

"OrderedMap([('two', 2), ('one', 1), (%r, 'value'), (%r, 'another')])" % (d, s))

self.assertEqual(str(OrderedMap([('two', 2), ('one', 1), (d, 'value'), (s, 'another')])),

"{'two': 2, 'one': 1, %r: 'value', %r: 'another'}" % (d, s))

def test_popitem(self):

item = (1, 2)

om = OrderedMap((item,))

self.assertEqual(om.popitem(), item)

self.assertRaises(KeyError, om.popitem)

class OrderedMapSerializedKeyTest(unittest.TestCase):

def test_init(self):

om = OrderedMapSerializedKey(UTF8Type, 2)

self.assertEqual(om, {})

def test_normalized_lookup(self):

key_type = lookup_casstype('MapType(UTF8Type, Int32Type)')

protocol_version = 3

om = OrderedMapSerializedKey(key_type, protocol_version)

key_ascii = {'one': 1}

key_unicode = {u'two': 2}

om._insert_unchecked(key_ascii, key_type.serialize(key_ascii, protocol_version), object())

om._insert_unchecked(key_unicode, key_type.serialize(key_unicode, protocol_version), object())

# type lookup is normalized by key_type

# PYTHON-231

self.assertIs(om[{'one': 1}], om[{u'one': 1}])

self.assertIs(om[{'two': 2}], om[{u'two': 2}])

self.assertIsNot(om[{'one': 1}], om[{'two': 2}])