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Computing with Data

elgeish
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Gray-Box Testing

Here's an example of testing the put method of our key-value store in a scenario that requires some knowledge about how the store is implemented to verify the post-conditions of the method:

import unittest
class KeyValueStore(object):
''' A key-value store example '''
def __init__(self):
self._store = {}
def put(self, key, value):
''' Puts a value in the store '''
self._store[key] = value
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