What are the demerits of black box testing and white box testing?

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Ranjith N

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Black box testing's main demerit is that testers lack knowledge of the internal code, making it harder to identify specific bugs or optimize performance. White box testing, on the other hand, requires deep knowledge of the code, which can be time-consuming and less effective in evaluating the overall...
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Black box testing's main demerit is that testers lack knowledge of the internal code, making it harder to identify specific bugs or optimize performance. White box testing, on the other hand, requires deep knowledge of the code, which can be time-consuming and less effective in evaluating the overall functionality from a user's perspective. Both methods have limited scope in covering all potential issues. read less
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Black box testing: Limited coverage of internal logic. Hard to identify hidden defects. White box testing: Time-consuming. Requires deep code knowledge.
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Black box testing: Limited coverage of internal logic. Hard to identify hidden defects. White box testing: Time-consuming. Requires deep code knowledge.
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Demerits of black box testing include limited insight into internal code structure, potentially missing bugs related to system interactions. For white box testing, drawbacks involve its complexity, requiring in-depth knowledge of the code, and the possibility of overlooking untested paths, leading to...
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Demerits of black box testing include limited insight into internal code structure, potentially missing bugs related to system interactions. For white box testing, drawbacks involve its complexity, requiring in-depth knowledge of the code, and the possibility of overlooking untested paths, leading to incomplete coverage and missed defects. read less
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