What is Integration Testing? Types, Tools and Strategies

 

Integration Testing

The process of testing the combination of units or integrated units of a system or product is called Integration Testing. It is the second level of software testing and helps to test the multiple modules of software written by different level of programmers. It is also said to be String Testing or Thread Testing. Also one of the levels of testing usually performed by developers or software testers.

Working Process of Integration Testing

  • The initial step is to prepare the tests plan
  • To design the test cases, test scenarios and test scripts
  • To execute the test cases
  • Optimize the test cases
  • To perform re-testing to ensure that the system is defect-free

Integration Testing Types/Strategies/Approaches

There are 4 different testing approaches namely

  • Big Bang Approach
  • Top-Down Approach
  • Bottom-Up Approach
  • Hybrid/Sandwich Approach
Integration-Testing-Approaches-W3Softech
Integration Testing Approaches – W3Softech

Big Bang Approach:

Big Bang Approach is nothing but testing by combining all the functional units at the group. This approach will take place after receiving the software at once.

Top Down Approach

Here top-level units are going to be tested first later lower level units will be tested one by one. This approach takes help of Test Stubs to perform testing on lower level units

Bottom Up Approach

It is quite opposite to the Top-Down Approach. This approach takes help of Test Drivers to perform testing on top level units

Hybrid/Sandwich Approach

This approach is the combination of both Top-Down and Bottom-Up Approaches. Here top-level units and lower level units are tested. It takes the help of both test stubs and test drivers

Top 15 Integration Testing Tools

  • Citrus
  • eZscript
  • FitNesse
  • Jasmine
  • LDRA
  • Pioneerjs
  • Protractor
  • Rational Integration Tester
  • SMART INTEGRATION TEST ACCELERATOR (SITA)
  • Spock for JAVA
  • Steam
  • TESSY
  • Validate MSG
  • VectorCAST/Ada
  • VectorCAST/C++                                                                                                                  For more information about this article visit :                                                                             https://w3softech.com/blog/integration-testing-types-tools-and-strategies/

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