#White box and black box testing how to
#White box and black box testing software

What will be the decision table in this case? Conditions for discounts When your order is over $200 you get a 20% discount and free shipping. When the order exceeds $150 you get a 15% discount. When you place an order above $100 you get a 10% discount. Your favourite online store offers discounts and free shipping.

-infinite to 19 and 31 to +infinity – negative testĬreating cases from a table showing the combination of inputs and outputs with the expected results.

What are the equivalence classes and the boundary values? The form contains an input field accepting integers. You test an app dedicated to 20-30-year-olds. Phew, that’s a lot of complicated theory, so let’s break it down through a practical example. So the test will be positive for values ABC but negative for XYZ.

Equivalence classesĬreating test cases based on sets of input or output data that will result in the same behaviour of the module or system. The most common techniques for designing test cases in functional testing are: Boundary Valuesīoundary values are exact input or output values (that the user enters into the application’s fields) that are at the boundary or in the immediate vicinity of the equivalence classes.

#White box and black box testing how to

How to prepare data and test cases for black box testing?Īnalysing input and output data and preparing test cases allows reducing the number of cases performed with precise values (determined based on the requirements). And we all know that time equals money, and we want to save as much of both as possible! If any differences are found, every single person in the entire project will receive this information and will be able to make the necessary fixes much faster and more efficiently. It seems much, but all these activities have an important goal: comparing the product with requirements. When all aforementioned points are done and done, a Quality Assurance expert should perform test cases, come up with a detailed analysis of results, report any occurring errors and retest everything when errors are corrected. Getting to know the application as a whole,ĭetermining the data needed to go through all user paths (it’s super important to include positive test scenarios and negative paths).

#White box and black box testing software

Analysing of software requirements and specifications,.

Black box testing requires a lot of preparations, so it’s very important to include an experience Quality Assurance specialist who will help with: