Next Chapter 74 TESTING TECHNIQUE AND STRATEGIES

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TESTING TECHNIQUE AND STRATEGIES

There are following rules that can serve well as testing objectives:

i. Testing is a process of executing a program with the intent of finding an error.

ii. A good test case is one that has a high probability of finding an as-yet-undiscovered error.

iii. A successful test is one that uncovers as-yet-undiscovered error.

There are two types of testing techniques:

· White box testing.

· Black box testing.

White box testing:

White box test focus on the program control structure. Test cases are derived to ensure that all statement in the program has been executed at least once during testing and that all logical condition has been exercised. Basic path testing, a white box testing, makes use of program graph to derive the set of linearly independent test that will ensure coverage.

Cyclomatic Complexity:

This is software metric that provides a quantitative measure of the logical complexity of a program.

Condition Testing:

Condition testing is tests case design method that exercise the logical conditions contain in a program module. A simple condition is a Boolean variable or a relational expression.

Branch Testing:

I have used Branch testing is probably the for compound condition, the true and false (in project i.e. null values) for each branch.

Data Flow Testing:

I have used data flow testing due to check the path of program according to the locations of definitions and uses of variables in the program.

Loop Testing:

In our project I have use only simple loop. And I have use m pass through the loop where m<n.

BLACK BOX TESTING:

Black box testing focuses on the functional requirements of the software. That is, black-box testing enable the software engineer to derive set of input conditions that will fully exercise all functional requirements for a program.

Graph-Based Testing Method:

I have used graph-based testing method for removing errors associated with relationships. The first step in this testing is to understand the objects that are modeled in software and the relationship that connect these objects.

Equivalence Partitioning:

This testing is used for the following reason:

§ Specific numeric values

§ Range of values

§ Set of related values

§ Boolean condition

For example: Check in phone number, code generation, voucher type, bill type, password etc.

Boundary Value Analysis:

Boundary value analysis is a test case design technique that complements equivalence partitioning. Rather than selecting any element of equivalence class the selection of test cases at the edges of the class. Rather than focusing solely on the input condition,

The point of equivalence partitioning as;

1. An input condition specifies a range boundary by values a and b, test cases should be design with values a and b and just above and just below a and b.

2. An input condition specific a number of values, test cases should be developed that exercise the minimum and maximum number.

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