Why do we have to retest subclasses that are instantiated from an existing class, if the existing

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Why do we have to retest subclasses that are instantiated from an existing class, if the existing class has already been thoroughly tested? Can we use the test cases designed for the existing class?

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Elementary Linear Algebra with Applications

ISBN: 978-0132296540

9th edition

Authors: Bernard Kolman, David Hill

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Posted Date: Jan 22, 2020 08:14 AM

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Why do we have to retest subclasses that are instantiated from an existing class, if the existing

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We need to examine the subclasses created by existing classes because ... View the full answer

Elementary Linear Algebra with Applications

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