Integration Testing - Reading Assignment

Blockchain Business Course
#322
  • They are written to expose problems with interfaces among components.
    • Unexpected interaction between components.
    • The Top-down starts with high-level functionality and test each unit down, while the bottom up is vice-versa.
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#323
  1. Why do we write integration tests?

To test combination of program units in multiple ways.

  1. What problems do integration tests solve?

They can expose problems with interfaces among program components before trouble occurs in real-world program execution.

  1. What are the differences between top-down and bottom-down approaches?

Bottom-up integration testing begins with unit testing, followed by tests of of progressively higher-level combinations of units called modules or builds. In top-down integration testing, the highest-level modules are tested first and progressively lower-level modules are tested after that.

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#324
  1. It can be considered almost an extension of basic unit testing. After a unit is tested, integration testing can determine any problems with the implementation of the new functions being preformed.
  2. When all the components of the platform are functioning it can check that everything is running as should be, and if problems arise its easier to home in on the problem.
  3. Bottom up testing begins with unit testing, followed by tests of progressively higher level combinations of units called modules or builds. In top-down integration testing, the highest-level modules are tested first and progressively lower-level modules are tested after that.
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#325

  1. Why do we write integration tests?
    An application is made of several modules for example - Backend Server, API integrations, Client side application. Integration testing focuses on the overall application and how each module is interacting with each other. Here the emphasis is given to the linking of module instead of an unit testing

  2. What problems do integration tests solve?
    Since each module is worked by many developers it’s important to know the end- end functionality is working. Integration testing helps to identify any design flaws or critical errors in the process of making an application.

  3. What are the differences between top-down and bottom-down approaches?

  • In Top Down approach higher level modules are tested first and then the lower level modules are integrated and tested in order to check the software functionality.
  • In bottom Up Approach, Lower level modules are tested first and then integrated with higher level modules and tested in order to check the software functionality.
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#326

  1. Why do we write integration tests?
    To test multiple program units at a time in multiple ways

  2. What problems do integration tests solve?
    Integration test can expose problems with the interface before it is used in the real world.

  3. What are the differences between top-down and bottom-down approaches?
    Top down starts testing at the highest program modules to the lowest level modules and bottom down begins with unit testing that goes up to testing higher level modules.

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#327

  1. Why do we write integration tests?
    In order to test combined units of code in multiple ways.

  2. What problems do integration tests solve?
    Integration tests help expose problems in interfaces between program components before these problems are encountered by customers.

  3. What are the differences between top-down and bottom-down approaches?
    In top-down testing, highest level modules are tested first followed by progressively lower-level modules. In bottom-up testing, the lowest level modules are tested first followed by higher-level modules.

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#328

1, To find out if each tested units would work together well
2, The mimic problems what will appear in customer’s computer and network
3, Top-down will test first on the highest level moduls when bottom up is the other way around

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#329

  • Why do we write integration tests?
    Because it can expose problems with the interfaces among program components before trouble occurs in real-world program execution

  • What problems do integration tests solve?
    it can expose problems with the interfaces among program

  • What are the differences between top-down and bottom-down approaches?
    Bottom-up you start testing with smallest unit and up.
    Top-down you start with the highest levels moduls and down.

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#330

Integration Testing - Reading Assignment

  1. Why do we write integration tests?
    Because Integration Tests can expose issues in software unit interfaces before actual product is released to real end user. This verifies proper execution of processes within application we’ve built.

  2. What problems do integration tests solve?
    Integration tests is an integral part of Extreme Programming by which development team could take a meticulous approach to building product by continual testing and revision.
    By testing various aspects of software interface activity a team can proof that application they have created is flawless in its performance.
    It would be reckless to avoid testing - costs could be far greater or damage to brand name hard to estimate in monetary value.

  3. What are the differences between top-down and bottom-down approaches?

  • Top-down testing is one where application is tested from the highest-level modules first.
    Progressively test then moves most to testing lower-level modules.

  • In Bottom-up testing approach testing begins with UNITS, followed by tests of progressively higher level combinations called modules or builds.

G.

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#331
  1. Integration tests verify that the software code is performing per the system requirements specification and design document. Unit tests verify that low level requirements are met whereas integration test verify that the interfaces and high level requirements are met.
  2. Interface issues.
  3. Bottom-up is testing begins with low level unit testing and then progresses upward to the higher level integration testing. Top-down testing begins with the higher level testing and then migrates down to the lower level unit testing,
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#332
  1. It’s done to ensure that all the program’s units work together or to pinpoint the problem with a particular unit.
  2. It detects problems with interfaces within the program components
  3. Bottom-up starts with unit testing following an increasing number of unit combinations. Top-down starts with the higher-level modules first and then progresses into the lower level modules
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#333

We write integration tests for the ability to run an overall test of the full system. These can be saved and run each time components are updated to test whether the changes to specific components impact the full system.

The main benefit for integration tests is to ensure that no changes done within the code impact the intended functionality of the system.

Bottom up starts at the unit testing level first, in order to test basic functionality, and then it move up to larger sections of code to ensure their is no negative impact. With top-down, you can simulate the behavior of the lower-level modules that are not yet integrated.

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#334
  • To expose problems with the interfaces among program component.
  • Interoperability between systems. exposing problems with the interface among program component before they occur.
  • Bottom-up begins with unit testing, followed by tests called modules or build, while top=down starts with test cases, and user scenarios
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#335

  1. Why do we write integration tests?
    to identify flaws or problems between different components that need to interact with each other

  2. What problems do integration tests solve?
    to reveal if there is any change in how the software performs after for instance changing something in the code.

  3. What are the differences between top-down and bottom-down approaches?
    top-down starts with high-level testing of builds and then goes to unit testing
    bottom up is the other way around, starts with unit testing and then to high level testing

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#336

1.) Why do we write integration tests?
A.) , System Integration Testing is done because, It helps to detect Defect(S)early, THUS SAVING TIME AND MONEY AS WELL AS MITIGATING RISK AND POTENTIAL LIABILITY FOR MANAGEMENT.i iT IS PROVIDING GOVERNANCE).
2.) What problems do integration tests solve?(sEE ABOVE ANSWER).
3.) What are the differences between top-down and bottom-down approaches?
A.) The top-down approach is simple and not data-intensive whereas the bottom-up approach is more complex as well as very data-intensive. Top-down approaches are backward-looking while bottom-up approaches are forward-looking. These are the basics of the top-down approach and the bottom-up approach and both are critical in testing. :nerd_face:

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#337
  1. We write such tests to test the program units for integrity and check for errors. Developers can use this tests to mimic real situations as an exercise.
  2. It helps developers to lower potential costs in a LIVE product (e.g. collateral costs/damage caused by the software to clients and customers) by finding integrity issues, bugs, etc.
  3. In a top-down integrating testing, the highest level modules are tested first and progressively lower level modules are tested after. The bottom-up approach begins with unit testing, followed by test of progressively higher level combinations of modules or builds.
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#338

  1. Why do we write integration tests?
    To identify issues with interfaces among programs before they go live.

  2. What problems do integration tests solve?
    Issues regarding how components are integrated and interact within the entire application.

  3. What are the differences between top-down and bottom-down approaches?
    The bottom-up approach commences with unit testing and is followed by increasingly higher-level combinations of units, while the top-down the higher-level units are tested first, followed by the smaller ones.

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#339

  1. Why do we write integration tests?
    Integration tests are intended to test the functionality of software, it checks the interoperability of the various parts of software,.

  2. What problems do integration tests solve?
    Integration testing solves problems that may occur amoun g the various parts of a software.

  3. What are the differences between top-down and bottom-down approaches?
    Top-Down testing starts with checking the functionality of the larger parts of the software to the smallest, Bottom-Up is the opposite.

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#340
  1. Why do we write integration tests?

Testing for how module interact to give desired output

  1. What problems do integration tests solve?

Testing of the how one or more module interact to generate a desired output

  1. What are the differences between top-down and bottom-down approaches?

Bottom-up tests for desired output of a software’s interacting modules

Top-down test of the whole software for overall desired outcomes

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#341
  1. Why do we write integration tests?
    Because we need to be sure that different components of the code work together.
  2. What problems do integration tests solve?
    It solves the issue in which different progrmmers are working on different parts/blocks of the code.
  3. What are the differences between top-down and bottom-down approaches?
    TopDown : Starts by testing the main functions. And then go down in the code.
    BottomUp : Starts with testing one function and then sums up.
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