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Difference between White box testing and Black box testing
In this article we are going to discuss about, difference between White box testing and Black box testing.
| White Box Testing | Black Box Testing |
|---|---|
| The developer can perform the white box testing. | The test engineer can perform the black box testing. |
| To perform WBT, we should have understanding of programming languages. | To perform BBT, there is no need of have an understanding of the programming languages. |
| In this we will look into the source code and test the logic of the code. | In this, we verify the functionality of the application based on the requirement specification. |
| In this, the developer should know about the internal design of the code. | In this, there is no need to know about the internal design of the code. |
| Test design techniques : Control flow testing, Data flow testing, Branch based testing, statement coverage , Decision coverage, path testing. | Test design techniques: Decision table testing, All pair testing, Equivalence partitioning, Boundary value analysis, Cause- effect graph. |
| Can be applied mainly at unit level but now in integration , system level also. | Can be applied virtually to every level of the software testing: unit, integration, system and acceptance. |
