Integration Testing - Reading Assignment

Blockchain Business Course
#282
  1. To ensure that units work together.
  2. Units may have passed unit tests but can fail when combined with other units.
  3. I think you meant to say bottom-up? Bottom up tests units as they are put together and is ussually done first. Top down is when a module is tested when all units are included.
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#283

  1. Integration tests allow programmers to test different pieces of code within the units.

  2. To identity errors within the code which can lead to issues as the code continues to grow. Cross check multiple layers of code.

  3. Top down testing begins with the highest order of code then works down to lowest code. Bottom up works in a reversal pattern.

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#284

  1. Integration testing can expose problems with the interfaces among program components before trouble occurs in real-world program execution.

  2. Integration testing is a component of Extreme Programming( (XP), a pragmatic method of software development that takes a meticulous approach to building a product by means of continual testing and revision.

  3. 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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#285

Why do we write integration tests?
Integration testing tests groups of software units to expose any faults in software unit groups

What problems do integration tests solve?
Determines whether software units/modules work together as specified

What are the differences between top-down and bottom-down approaches?
A mixed integration testing follows a combination of top down and bottom-up testing approaches. In top-down approach, testing can start only after the top-level module have been coded and unit tested. In bottom-up approach, testing can start only after the bottom level modules are ready.

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#286

Integration Testing :jigsaw:

  1. Why do we write integration tests?
    Before putting code for an entire application into production we want to make sure that its components (that might have been written by different developers and/or at different times) are consistent and actually work well together. Integration tests provide the bigger picture so to speak.

  2. What problems do integration tests solve?
    Integration tests help to find issues with the interaction of modules/units that otherwise work just fine by themselves.

  3. What are the differences between top-down and bottom-down approaches?
    The former starts from testing the application as whole and subsequently looks at smaller and smaller units/modules. The latter starts with the smallest testable parts and moves up to the entire application by combining modules into bigger and more complex modules at each step.

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#287

Reading Assignment: integration Testing (answers)

  1. To test programs in groups in multiply ways.
  2. Express problems with interfaces among program components before trouble occurs in real world execution.
    3.BottomDown begins with Unit testing works its way up, as where TopDown begins with higher modules and works it way down. Including hybrid modules work both direction.
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#288
  1. The phase in software testing in which individual software modules are combined and tested as a group.
  2. Integration testing solves the problems that arise from grouping the input modules that have been unit tested in larger aggregates.
  3. Bottom-up testing is an approach to integrated testing where the lowest level components are tested first, then used to facilitate the testing of higher level components. Top-down testing is an approach to integrated testing where the top integrated modules are tested and the branch of the module is tested step by step until the end of the related module.
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#289
  1. To test units as groups in multiple ways.
  2. Integration testing can expose problems with the interfaces among program components before trouble occurs in real-world program execution.
  3. Bottom-up integration begins with unit testing, followed by tests of higher-level combinations of units called modules or builds. Top-down integration testing, the highest level modules are tested first and lower level modules are tested after that.
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#290

  1. Why do we write integration tests?
    To automate and improve the testing process between different units that have been tested previously on unit testing.

  2. What problems do integration tests solve?
    To ensure that interaction between those different units are also working as expected.

  3. What are the differences between top-down and bottom-down approaches?
    Top-down is testing bigger parts of the code and then continue with smaller parts , while botton-up means exactly the opposite starting with smaller units and continue testing bigger units of the code.

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#291

  1. to determin problems within the interfaces between program components before errors occur in real-world program execution.

  2. they solve problems concerning the interfaces between different program components

  3. a: top down: the top-level modules (combinations of units, aka builds/modules) are tested first and then lower-level modules are tested after that progressively.
    b: the lower-level units are tested in progressively higher-level combinations of modules

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#292
  1. Why do we write integration tests?
    To verify that components work as expected when integrated
  2. What problems do integration tests solve?
    Interoperability between integrated modules, detecting errors related to the interface between modules, API’s and other third-party tools
  3. What are the differences between top-down and bottom-down approaches?
    In top-down integration testing, the highest-level modules are tested first and progressively lower-level modules are tested after that.
    Bottom-up integration testing begins with unit testing , followed by tests of of progressively higher-level combinations of units called modules or builds.
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#293
  1. Why do we write integration tests?
    it is more easy to fix issues during testing than later when everything running and it is very important to write integration tests.
  2. What problems do integration tests solve?
    solve problems with program components the way how they interact with each other
  3. What are the differences between top-down and bottom-down approaches?
    it is progressive testing starting with highest level modules testing first at top-down testing
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#294
  1. We want to test all the code. Testing larger modules might create conditions that unit tests cannot predict.
  2. Unexpected interactions between programming functions/procedures, before real world deployment.
  3. Top-down: First tests main functions and modules(highest levels of code), and works downward.
    Bottom-up: Starts with unit testing(lowest level of code) individual functions and works upward.
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#295

  1. Why do we write integration tests?
    To verify that they work as expected individually as modules.

  2. What problems do integration tests solve?
    Helps to identify issues with interaction of modules/units that normally would work alone.

  3. What are the differences between top-down and bottom-down approaches?
    Top down approach starts with big picture. It breaks down into smaller segments. A bottom-up approach is the piecing together of systems to give rise to more complex systems, thus making the original systems of the emergent system.

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#296

  1. This testing allows for the different components of the unit testing to be tested as a whole. This way you can see how the the different interfaces interact with each other and cant bugs before deploying or using in a real world use case.

  2. They identify how the individual components will interact and function as a whole.

  3. Bottom up is testing individual components and gradually adding more components until you get to the whole program. Top down is testing the program as a whole and then removing parts to see if it still functions or if any bigs arise.

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#297

To make sure that different components of the code work together.

finds unexpected results when combining different units that could have been caused by different programmers or even companies working on different sections of the code.

Top-down testing begins with the highest order of code and tests down from this bigger code to individual units. Bottom-up works in the other way

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#298
  1. in order to combine units and test them as a group in multiple ways - comes from XP
  2. interaction problems btw program components
  3. bottom-up means you test each part first and then a combination/sum of it, whereas top-down is the other way around
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#299

  • Why do we write integration tests?
    To test an API and make sure it functions as expected.

  • What problems do integration tests solve?
    Having an API that is defective. API’s are often mission critical. If an API is not functioning correctly or is buggy it can cause significant with the applicaiton.

  • What are the differences between top-down and bottom-down approaches?
    Top Down starts the testing with one or more Happy Paths through the application. The subsiquent test get more and more specific as they drill into specific functionality.

Bottom Up is where you start with specific functions and gradually add more and more functions. Eventually it will test the application as a whole going down a happy path.

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#300

  1. Why do we write integration tests?
    To test the code at whole and make sure all components work together

  2. What problems do integration tests solve?
    They find issues arising when different components work together and fix them before the software is released

  3. What are the differences between top-down and bottom-down approaches?
    Top-down - Tests overall functionality first and then filters down to unit testing while bottom up starts with the individual unit test first and then moves to the overall functional testing

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#301

1. Why do we write integration tests?

We write integration tests for different purposes. One can be to shine a light on problems in the interfaces that are connected to the main software. For example, in an SAP FMS implementation, we could run into problems as we integrate the interfaces with Hybris / Demandware. Integration tests allow us to proactively locate problems before we go-live. This also allows us to be more agile in adjusting, fine-tuning the implementation as we deliver each object.

2. What problems do integration tests solve?

Integration testing allows the testing of the software functionality. It also enables business processes developed by SME’s (business) to be addressed and made more agile as we encounter and see the real business process in action.

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

  • Bottom-up integration testing begins with unit testing at the base level
  • Top-down integration testing, the highest parts of the program are tested first
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