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# The MIT License (MIT)
# Copyright (c) Microsoft Corporation. All rights reserved.
import unittest
import pytest
import azure.cosmos._routing.routing_range as routing_range
from azure.cosmos._routing.collection_routing_map import CollectionRoutingMap
from azure.cosmos._routing.routing_map_provider import PartitionKeyRangeCache
@pytest.mark.cosmosEmulator
class TestCollectionRoutingMap(unittest.TestCase):
def test_advanced(self):
partition_key_ranges = [{u'id': u'0', u'minInclusive': u'', u'maxExclusive': u'05C1C9CD673398'},
{u'id': u'1', u'minInclusive': u'05C1C9CD673398', u'maxExclusive': u'05C1D9CD673398'},
{u'id': u'2', u'minInclusive': u'05C1D9CD673398', u'maxExclusive': u'05C1E399CD6732'},
{u'id': u'3', u'minInclusive': u'05C1E399CD6732', u'maxExclusive': u'05C1E9CD673398'},
{u'id': u'4', u'minInclusive': u'05C1E9CD673398', u'maxExclusive': u'FF'}]
partitionRangeWithInfo = [(r, True) for r in partition_key_ranges]
pkRange = routing_range.Range("", "FF", True, False)
collection_routing_map = CollectionRoutingMap.CompleteRoutingMap(partitionRangeWithInfo, 'sample collection id')
overlapping_partition_key_ranges = collection_routing_map.get_overlapping_ranges(pkRange)
self.assertEqual(len(overlapping_partition_key_ranges), len(partition_key_ranges))
self.assertEqual(overlapping_partition_key_ranges, partition_key_ranges)
def test_partition_key_ranges_parent_filter(self):
# for large collection with thousands of partitions, a split may complete between the read partition key ranges query pages,
# causing the return map to have both the new children ranges and their ranges. This test is to verify the fix for that.
Id = 'id'
MinInclusive = 'minInclusive'
MaxExclusive = 'maxExclusive'
Parents = 'parents'
# create a complete set of partition key ranges
# some have parents as empty array while some don't have the parents
partitionKeyRanges = \
[
{Id: "2",
MinInclusive: "0000000050",
MaxExclusive: "0000000070",
Parents: []},
{Id: "0",
MinInclusive: "",
MaxExclusive: "0000000030"},
{Id: "1",
MinInclusive: "0000000030",
MaxExclusive: "0000000050"},
{Id: "3",
MinInclusive: "0000000070",
MaxExclusive: "FF",
Parents: []}
]
def get_range_id(r):
return r[Id]
# verify no thing is filtered out since there is no children ranges
filteredRanges = PartitionKeyRangeCache._discard_parent_ranges(partitionKeyRanges)
self.assertEqual(['2', '0', '1', '3'], list(map(get_range_id, filteredRanges)))
# add some children partition key ranges with parents Ids
# e.g., range 0 was split in to range 4 and 5, and then range 4 was split into range 6 and 7
partitionKeyRanges.append({Id: "6",
MinInclusive: "",
MaxExclusive: "0000000010",
Parents: ["0", "4"]})
partitionKeyRanges.append({Id: "7",
MinInclusive: "0000000010",
MaxExclusive: "0000000020",
Parents: ["0", "4"]})
partitionKeyRanges.append({Id: "5",
MinInclusive: "0000000020",
MaxExclusive: "0000000030",
Parents: ["0"]})
# verify the filtered range list has children ranges and the parent Ids are discarded
filteredRanges = PartitionKeyRangeCache._discard_parent_ranges(partitionKeyRanges)
expectedRanges = ['2', '1', '3', '6', '7', '5']
self.assertEqual(expectedRanges, list(map(get_range_id, filteredRanges)))
def test_point_range_mapping(self):
partition_key_ranges = [{u'id': u'0', u'minInclusive': u'', u'maxExclusive': u'1FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF'},
{u'id': u'1', u'minInclusive': u'1FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF', u'maxExclusive': u'FF'}]
partitionRangeWithInfo = [(r, True) for r in partition_key_ranges]
expected_partition_key_range = routing_range.Range("", "1FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF", True, False)
pk_range = routing_range.Range("1EC0C2CBE45DBC919CF2B65D399C2673", "1EC0C2CBE45DBC919CF2B65D399C2673", True, True)
normalized_pk_range = pk_range.to_normalized_range()
collection_routing_map = CollectionRoutingMap.CompleteRoutingMap(partitionRangeWithInfo, 'sample collection id')
overlapping_partition_key_ranges = collection_routing_map.get_overlapping_ranges(normalized_pk_range)
# a partition key feed range should only map to one physical partition
self.assertEqual(1, len(overlapping_partition_key_ranges))
self.assertEqual(expected_partition_key_range, routing_range.Range.PartitionKeyRangeToRange(overlapping_partition_key_ranges[0]))
def test_collection_routing_map(self):
Id = 'id'
MinInclusive = 'minInclusive'
MaxExclusive = 'maxExclusive'
partitionKeyRanges = \
[
({Id: "2",
MinInclusive: "0000000050",
MaxExclusive: "0000000070"},
2),
({Id: "0",
MinInclusive: "",
MaxExclusive: "0000000030"},
0),
({Id: "1",
MinInclusive: "0000000030",
MaxExclusive: "0000000050"},
1),
({Id: "3",
MinInclusive: "0000000070",
MaxExclusive: "FF"},
3)
]
crm = CollectionRoutingMap.CompleteRoutingMap(partitionKeyRanges, "")
self.assertEqual("0", crm._orderedPartitionKeyRanges[0][Id])
self.assertEqual("1", crm._orderedPartitionKeyRanges[1][Id])
self.assertEqual("2", crm._orderedPartitionKeyRanges[2][Id])
self.assertEqual("3", crm._orderedPartitionKeyRanges[3][Id])
self.assertEqual(0, crm._orderedPartitionInfo[0])
self.assertEqual(1, crm._orderedPartitionInfo[1])
self.assertEqual(2, crm._orderedPartitionInfo[2])
self.assertEqual(3, crm._orderedPartitionInfo[3])
self.assertEqual("0", crm.get_range_by_effective_partition_key("")[Id])
self.assertEqual("0", crm.get_range_by_effective_partition_key("0000000000")[Id])
self.assertEqual("1", crm.get_range_by_effective_partition_key("0000000030")[Id])
self.assertEqual("1", crm.get_range_by_effective_partition_key("0000000031")[Id])
self.assertEqual("3", crm.get_range_by_effective_partition_key("0000000071")[Id])
self.assertEqual("0", crm.get_range_by_partition_key_range_id("0")[Id])
self.assertEqual("1", crm.get_range_by_partition_key_range_id("1")[Id])
fullRangeMinToMaxRange = routing_range.Range(CollectionRoutingMap.MinimumInclusiveEffectivePartitionKey,
CollectionRoutingMap.MaximumExclusiveEffectivePartitionKey, True,
False)
overlappingRanges = crm.get_overlapping_ranges([fullRangeMinToMaxRange])
self.assertEqual(4, len(overlappingRanges))
onlyPartitionRanges = [item[0] for item in partitionKeyRanges]
def getKey(r):
return r['id']
onlyPartitionRanges.sort(key=getKey)
self.assertEqual(overlappingRanges, onlyPartitionRanges)
noPoint = routing_range.Range(CollectionRoutingMap.MinimumInclusiveEffectivePartitionKey,
CollectionRoutingMap.MinimumInclusiveEffectivePartitionKey, False, False)
self.assertEqual(0, len(crm.get_overlapping_ranges([noPoint])))
onePoint = routing_range.Range("0000000040", "0000000040", True, True)
overlappingPartitionKeyRanges = crm.get_overlapping_ranges([onePoint])
self.assertEqual(1, len(overlappingPartitionKeyRanges))
self.assertEqual("1", overlappingPartitionKeyRanges[0][Id])
ranges = [
routing_range.Range("0000000040", "0000000045", True, True),
routing_range.Range("0000000045", "0000000046", True, True),
routing_range.Range("0000000046", "0000000050", True, True)
]
overlappingPartitionKeyRanges = crm.get_overlapping_ranges(ranges)
self.assertEqual(2, len(overlappingPartitionKeyRanges))
self.assertEqual("1", overlappingPartitionKeyRanges[0][Id])
self.assertEqual("2", overlappingPartitionKeyRanges[1][Id])
def test_invalid_routing_map(self):
partitionKeyRanges = \
[
({'id': "1", 'minInclusive': "0000000020", 'maxExclusive': "0000000030"}, 2),
({'id': "2", 'minInclusive': "0000000025", 'maxExclusive': "0000000035"}, 2),
]
collectionUniqueId = ""
def createRoutingMap():
CollectionRoutingMap.CompleteRoutingMap(partitionKeyRanges, collectionUniqueId)
self.assertRaises(ValueError, createRoutingMap)
def test_incomplete_routing_map(self):
crm = CollectionRoutingMap.CompleteRoutingMap(
[
({'id': "2", 'minInclusive': "", 'maxExclusive': "0000000030"}, 2),
({'id': "3", 'minInclusive': "0000000031", 'maxExclusive': "FF"}, 2),
]
, "")
self.assertIsNone(crm)
crm = CollectionRoutingMap.CompleteRoutingMap(
[
({'id': "2", 'minInclusive': "", 'maxExclusive': "0000000030"}, 2),
({'id': "2", 'minInclusive': "0000000030", 'maxExclusive': "FF"}, 2),
]
, "")
self.assertIsNotNone(crm)
if __name__ == '__main__':
unittest.main()
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