The second most important part of this is Integration Testing . Integration Testing is the second level of testing after Unit Testing and done before System Testing . So you know where we are going with this .

INTEGRATION TESTING is a level of software testing where individual units are combined and tested as a group. The purpose of this level of testing is to expose faults in the interaction between integrated units. Test drivers and test stubs are used to assist in Integration Testing. To cater to the growing demands of our customers are crucial to mobile app making technology. What happens to be a luxury yesterday becomes a plain necessity today. Users also want to see the same data across multiple devices, such as their desktops and mobile devices. For example, in a banking application, users should be able to log into their bank accounts on their computers, tablets, and smartphones and see the same data consistently across these devices . Its important to sync apps and dependent technology together.   Performing integration testing for mobile applications is essential, due to the need to sync these apps with all the other devices and interfaces.

It  is an approach where modules are developed, and testing of modules always starts at the finest level of the programming and continues towards the lower levels. It’s the extension of unit testing. Integration testing takes a smaller unit of unit testing and tests their behavior as the whole.

Most of the testing life cycles primarily rely on end to end testing. It’s important and must to have an end to end testing. But at the same time, it’s important to have Integration Test suites in the software testing life cycle.

Some of the experiences and advantages of the Integration Testing

  • Be it top down or bottom up approach of Integration Testing, the testing starts at the very early stages of development and bugs are caught earlier rather than late in the cycle.

  • Confidence in the development cycle is high.

  • Easy to integrate with daily builds and easy to test in development environment

  • Creating the right test gives precise feedback loop mechanism between both developers and test engineers.

  • Tests run faster compared to end to end tests.

  • Code Coverage is higher and easy to track.

  • Most of the unit test cases, negative cases, and simpler cases can be written at the earlier stages and gets executed on every build. Helps in better test coverage too and improves test gaps.

  • Tests are more reliable and easy to isolate the failures.

  • Majorly helps to build real-time use cases during the end to end testing

  • .Integrationtests catch system-level issues, such as a broken database schema, mistaken cache integration, and so on.

    What does it require to have integration testing?

  • Most importantly it requires Developer with Tester’s attitude.

  • Management encouragement to build strong Test team who would work and think like a tester with development skill sets.

  • Test Automation Developers need to think beyond writing test after the product built but at very early stage of development.

  • Test are written from the day one of the development cycles

Method

  • Black Box Testing

  • White Box Testing

  • Gray Box Testing

The method depends on your definition of ‘unit’.

Although integration testing strategies may vary, they are most successful when results are carefully tracked and recorded to ensure that nothing is missed, and that one of the components involved isn’t wrongly accused of failing. Wrong assumptions at this stage of software development can begin to get costly in terms of time and effort expended.