Integration Testing - Reading Assignment

Blockchain Business Course
#302

  1. Why do we write integration tests?
    To test the functionality of the program components and make sure it all works well together.

  2. What problems do integration tests solve?
    It solves interoperability problems and how different program components interact with each other.

  3. What are the differences between top-down and bottom-down approaches?
    The bottom down testing approach is testing all the code components from the lower levels to the top, the top-down does the opposite, start at the top components and works its way to the bottom.

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#303

  1. We write integration tests because we need to test if application / software works as a whole, not only as parts (which is unit testing).

  2. Integration tests solve the problems with interfaces between individual parts of the program.

  3. Top-down test involves testing the highest level first (program as a whole) and then testing smaller and smaller parts. Whereas bottom-up test (not bottom-down - I guess you have a mistake in your question) involves testing the lowest part of the code first and then adding higher parts of the code until the program is tested as a whole.

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#304

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

  2. What problems do integration tests solve?
    Problems in units, modules or builds.

  3. What are the differences between top-down and bottom-down approaches?
    Bottom-up integration 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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#305
  1. Why do we write integration tests?

Makes it easier to find the defect in two or more modules finding the defects at an early stage which in turn saves the effort and cost as well.

  1. What problems do integration tests solve?
  • Functionality of software.
    Scenarios designed to mimic those it will encounter in customers’ computers, systems and networks.

3.What are the differences between top-down and bottom-down approaches?
The bottom down testing approach is testing all the code components from the lower levels to the top, the top-down does the opposite, start at the top components and works its way to the bottom.

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#306

1.- To test code that crosses boundaries.
2.- Allows us to test software functionality, solves interoperability problems.
3.- Top down starts its tests at higher levels and goes all the way down the code, bottom down does the opposite.

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#307

The link provided forced login from a corporate email. i red a different article, here is the link https://softwaretestingfundamentals.com/integration-testing/

Integration testing is done to ensure that the individual units and components interface correctly and function as intended. The idea is ensure that the units that have been previously tested in fact function as intended and that the tested units act as intended within the different components of the software functionality. As previously discussed bottom up testing seeks to test the individual units first, while top down seeks to test the integration by first testing the whole system to see if it functions properly and Then later testing the individual units.

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#308

Integration Testing - Read

  1. We do write integration testing in order to:
  • build real-time used cases during the end to end testing.
  • to evaluate the compliance of systems component with specified functional requirements.
  • to capture system level issues such as broken database schema, mistaken cache integration, and so on.
  1. Problems integration testing solve are as follow:

  • ensure the programs are working correctly

  • incompatibility between two or more independent softwares or modules put together.

  1. The difference between a top-down and a bottom-down approach is that a top-down only start after the top level module has been coded and unit tested and bottom-down is when the only module in the lowest of downs has been, coded, tested and removed.
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#309

  1. We write integration tests to expose issues in interfaces among program components before moving to real-world program execution.

  2. Integration tests solve issues that may arise in real-life scenarios in customers systems.

  3. Bottom-up integration testing begins with unit testing followed by progressively higher-level combinations of builds.
    Top-down integration testing is usually done after bottom-up and starts with highest-level modules followed by progressively lower-level modules.

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#310

  1. We write integration tests in order to expose bugs that occur in the interaction between software units when they are integrated together.

  2. Software components can often times work individually but not interact with each other in ways that are expected.

  3. The bottom-up approach is where the lower-level components are tested first. The top-down approach is where the top-most components are tested first and then lower level components are tested after.

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#311

  1. To ensure that the developed application executes properly with its interfaces’ program components before being released to run in the real-world.

  2. The integration tests aim to identify problems of friction, errors and systemic bugs that can occur when code components interact. Thus, giving the developers the chance to fix it/them in a controlled environment and before a full release.

  3. In the top-down integration testing approach, the highest-level modules (combinations of units) are tested 1st, followed by progressively testing the lower-level modules; while the bottom-down integration testing approach starts with unit testing, followed by progressively testing higher-level combinations of units (modules/builds).

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#312
  1. To insure that all of the modules, units and interfaces work together in sync with each other.
  2. The operability of all the different program components
  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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#313
  1. Program units can be tested as a group and in multiple ways.
  2. Problems from interfaces among program components.
  3. Bottom-up approaches start with unit testings top-down approaches start with the highest modular level.
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#314
  1. To see if the program works fine all together and to expose problems with interfaces between the program components in a simulation environment;
  2. Solve problems that have been independent programmed and need to be integrated with more units;
  3. Top-down starts from the main functions and the big picture, working from the highest order of code. Bottom-up starts from the units to the main functions, it is reverse from top-down.
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#315
  1. Because we want test the all the code that makes up the application and also all the interfaces linking all the components together.
  2. They identify problems with the way different program components interact with each other.
  3. Top-down is larger sections then smaller sections of code. Bottom-up is small parts then larger parts. Unit testing the integration.
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#316

1.) Why do we write integration tests?
Integration testing can expose problems with the interfaces among program components before trouble occurs in real-world program execution.

2.) What problems do integration tests solve?
They solve problems with the interfaces among program components before trouble occurs in real-world program execution.

3.) 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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#317

  • Why do we write integration tests?
    Integration testing is to test whether many separately developed modules work together as expected.

  • What problems do integration tests solve?
    Integration testing can expose problems with the interfaces among program components before trouble occurs in real-world program execution.

  • 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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#318
  1. Why do we write integration tests?
    We write integration tests to expose any defects that occur in the interfaces and interaction between different units. Ensure that expected outcomes are met when operating as a complete package.
  2. What problems do integration tests solve?
    Identify issues that may occur when different units interact with each other. Ensure functionality is as expected.
  3. What are the differences between top-down and bottom-down approaches?
    Top-down tests top-level modules first followed by the lower level units. Bottom-up starts with unit testing then moves to higher level combination of units.
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#319
  1. Integration tests are run to ensure that tested combined units can interface together without issue prior to releasing the application for real-world use.
  2. integration tests different combinations of individual units to uncover problems in their interactions.
  3. Top-down testing starts their tests on highest-level modules and progressively lower level modules are tested that. Whereas, bottom-down starts at unit testing and works its way up to testing higher-level combinations of units. i.e… top-down starts with the whole thing and works its way down to the smallest components vs bottom-down starts with the smallest units and works its way up to the entire application.
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#320

  1. Why do we write integration tests?

    Because its important to verify if there any problems.

  2. What problems do integration tests solve?

    Interaction between units

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

     Top-down its for indicate the code or the smaller components of the program

Bottom-up to test individual code section.

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#321

1- Why do we write integration tests?
To test functionality beyond the scope of unit tests – and ensure sections of code work together.

2- What problems do integration tests solve?
Problems in product functionality or communication that result, for example, from the integration of the work performed by different people or teams of people having worked on the same code / functions / product.

3- What are the differences between top-down and bottom-down approaches?
Bottom-up starts with small units of code and works up towards the overall features of the product functionality. Top-down works in reverse.

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