Question

Define integration testing and three types of integration testing.

Answer 1

In integration Testing, individual software modules are integrated logically and tested as a group.

A typical software project consists of multiple software modules, coded by different programmers.

integration Testing focuses on checking data communication amongst these modules.

Hence it is also termed as 'I & T' (Integration and Testing), 'String Testing' and sometimes 'Thread Testing'.

Answer 2

Integration testing:

In this testing, each separate module has to be integrated and then tested for finding bugs.

Types:

1. Big-Bang integration Testing
2. Bottom-Up Integration testing
3. Top-Down Integration Testing

'Big-Bang' Integration Testing:

• It is a simple testing and all the modules are combined and verifies the its functionality.

Bottom-Up Integration testing:

• Each module at a bottom level is tested.

Top-Down Integration Testing

• stimulate the functions of lower level modules which are yet to be integrated.

Learn more about integration testing

What is integration testing?

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How integration testing is carried out in object-oriented scenarios?

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