Tutorials Hut

Tutorials Hut

  • Testing Foundation

      Basics of Software Testing
       What is Software Testing?
       Objective of Testing
       Why is testing necessary?
       Common Terms used in Testing
       Verification Vs Validations
       QA Vs QC
       Debugging Vs Testing
       Seven Testing Principles
       SDLC Vs STLC
       Fundamentals of Test Process
       Software quality Factors
       Software Development Models
       Waterfall Model
       V models
       Iterative Model
       Test Levels
       Component Testing
       Integration Testing
       System Testing
       Acceptance Testing
       Strategies for Integration Testing
       Big Bang
       Stubs and Driver
       Top Down Testing
       Bottom Up Testing
       Test Types
       Functional Testing
       Non- Functional Testing
       Structural Testing
       Re-testing & Regression Testing
       Static AND Dynamic Techniques
       Static Technique
       Dynamic Technique
       Static Analysis by Tools
       White Box Techniques
       Statement Coverage Testing
       Branch Coverage Testing
       Decision Coverage Testing
       Path Coverage
       Black Box Techniques
       Equivalence Partitioning
       Boundary Value Analysis
       Decision Table testing
       State Transition testing
       Experience Based TestingTechniques
       Random Testing
       Exploratory Testing
       Error Guessing
       Functional Testing
       Integration Testing
       Unit Testing
       System Testing
       Smoke testing
       Sanity testing
       Regression Testing
       Usability Testing
       Security Testing
       User Acceptance Testing
       White Box & Black Box Testing
       Globalization & Localization Testing
       Non Functional Testing
       Compatibility testing
       Endurance testing
       Load testing
       Performance testing
       Recovery testing
       Scalability testing
       Stress testing
       Volume testing
       Test Planning and Estimation
       Test Planning
       Test Strategies Vs Test Plan
       Test Approaches
       Risk and Testing
       Product Risks
       Project Risks
       Defect Management
       Defect LifeCycle
       Severity Vs Priority

  • Integration Testing Vs Unit Testing Vs
    System testing

    This article will present you with a complete idea about Integration Testing ,Unit Testing and System testing.

    We will learn below topics in this article

    Integration Testing

        • Testing the interfaces between components
        • Tests communication between 2 components, not individual component functionality
        • This testing can be performed after unit testing and before system testing
        • To validate to if different pieces of the modules work together as a whole.
        • Scope is broad and puts the whole application under test
        • Is carried out by testers

    Approaches to integration testing:

        • Big Bang Approach
        • Incremental Approach
        • Sandwich Approach

    Some features of integration testing

          • Testing done to verify communication of data and actions across different systems, hardware, software or environmental components.
          • It also tests nonfunctional aspects.
          • Performed after integration of modules, software and external components.
          • Integration techniques are used.Preferably this should be in incremental mode rather than a BIG BANG approach as it’s harder to isolate failures
          • Aims to remove defects and performance issues due to integration of various systems.
    Test levels in Software Testing Integration testing

    Unit Testing

        • It is a level of the software testing process where individual components of a system are tested.
        • Objective is to validate that each unit of the software performs as designed.
        • Concerned with functional correctness and completeness of individual program units


    Isolate each part of the program and show that the individual parts are correct.

    Why Unit Test?

        • Faster Debugging
        • Faster Development
        • Better Design
        • Reduce Future Cost

    Who performs it?

        • Performed by software developers
        • May also independent software testers (Understanding of code, architecture and design is required)
    Some important points of Unit testing:
          • Used to check or defects and functioning of an individual piece of code like object or class.
          • Done at  the time of code development. Defects are usually fixed straight away.
          • Run or check of code using stubs, drivers and Simulators, Test Driven Development (Test First approach), unit test framework, debugging tool
          • Unit testing mainly targets on checking functional and non functional aspects like unit code, performance, robustness, memory leakage etc.
          • Performed by Developers.

    System Testing

        • Testing complete, integrated system to evaluate the system’s compliance with its specified requirements.
        • Carried out by specialists testers or independent testers.
        • Covers both functional and non-functional requirements of the testing.
        • Objective is verify and validate both the business requirements as well as the applications architecture
        • Testing application thoroughly to verify that it meets the technical and functional specifications

    Types of system testing

    The mainly using types are

        • Usability testing
        • Stress testing
        • Regression testing
        • Functional testing
        • Load testing
        • Sanity testing
        • Security testing

    Entry criteria for system testing

        • Complete software system should be developed
        • Unit testing and Integration testing must be completed Specifications for the product have been completed
        • Test scripts are ready

    Exit criteria for system testing

        • All the test cases for the system should be executed
        • No critical defects should be opened

    Application meets all the document requirements and functionalities

    Recommended Articles:

  • Leave a Reply

    Your email address will not be published. Required fields are marked *

    Scroll to Top