39 lines
1.3 KiB
Python
39 lines
1.3 KiB
Python
"""
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Tests for methods defined in mongo_utils.py
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"""
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from unittest import TestCase
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from uuid import uuid4
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import ddt
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from pymongo import ReadPreference
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from xmodule.mongo_utils import connect_to_mongodb
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@ddt.ddt
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class MongoUtilsTests(TestCase):
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"""
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Tests for methods exposed in mongo_utils
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"""
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@ddt.data(
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('PRIMARY', 'primary', ReadPreference.PRIMARY),
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('SECONDARY_PREFERRED', 'secondaryPreferred', ReadPreference.SECONDARY_PREFERRED),
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('NEAREST', 'nearest', ReadPreference.NEAREST),
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)
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@ddt.unpack
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def test_connect_to_mongo_read_preference(self, enum_name, mongos_name, expected_read_preference):
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"""
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Test that read_preference parameter gets converted to a valid pymongo read preference.
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"""
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host = 'localhost'
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db = 'test_read_preference_%s' % uuid4().hex
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# Support for read_preference given in constant name form (ie. PRIMARY, SECONDARY_PREFERRED)
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connection = connect_to_mongodb(db, host, read_preference=enum_name)
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assert connection.client.read_preference == expected_read_preference
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# Support for read_preference given as mongos name.
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connection = connect_to_mongodb(db, host, read_preference=mongos_name)
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assert connection.client.read_preference == expected_read_preference
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