Unit Testing - Reading Assignment

Blockchain Business Course
#141
  1. What is Unit Testing?

Testing specific parts of the code in a program.

  1. Refactoring means that you change and (hopefully) improve the internal structure of the code without changing the behaviour of the code. For example, developers may change a piece of code in order to make the code run faster but still perform the same task. Why is unit testing important for refactoring?

You need to test the unit to ensure that it is performing the same task as intended, without other ramifications.

  1. How does Unit Testing help the bottom-up testing approach?

It makes integration much easier because by testing each individual unit, you can more quickly isolate errors in the program as a whole.

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#142
  • What is Unit Testing?
    testing of individual parts of code to figure out if the code is ready to go productive
  • Refactoring means that you change and (hopefully) improve the internal structure of the code without changing the behaviour of the code. For example, developers may change a piece of code in order to make the code run faster but still perform the same task. Why is unit testing important for refactoring?
    to check if the clean-up of the code in background had any impact to the application
  • How does Unit Testing help the bottom-up testing approach?
    Unit testing makes integration testing easier as each part on it’s own is tested before trying to connect pieces of code
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#143

  1. Unit testing is done to ensure that the individual parts of a software program are correct. It provides a strict, written contract that the piece of code must satisfy.

  2. It allows a developer to refactor code at a later date and helps identify faults and bugs quickly and easily.

3.By testing the parts of a program first and then testing the sum of its parts, integration testing becomes much easier.

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#144

  1. What is Unit Testing?
    Unit testing is a method by which individual units of source code are tested to determine if they are fit for use. A unit is the smallest testable part of an application. In procedural programming a unit may be an individual function or procedure.

  2. Refactoring means that you change and (hopefully) improve the internal structure of the code without changing the behaviour of the code. For example, developers may change a piece of code in order to make the code run faster but still perform the same task. Why is unit testing important for refactoring?
    To make sure everything still works correctly after the changes and whenever a change causes a fault, it can help identifying and fixing it.

  3. How does Unit Testing help the bottom-up testing approach?
    By testing the parts of a program first and then testing the sum of its parts

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#145
  1. What is Unit Testing?

It is the individual testing of the smallest components of your software.

  1. Refactoring means that you change and (hopefully) improve the internal structure of the code without changing the behaviour of the code. For example, developers may change a piece of code in order to make the code run faster but still perform the same task. Why is unit testing important for refactoring?

It increase the safety of refactoring. Problems can be detected in an early development stage and you are able to monitor unit behavior continuously throughout the development process.

How does Unit Testing help the bottom-up testing approach?

Testing all smallest components makes it a bottom up approach. It helps because it makes sure all individual units are working correctly in their core and are still working correctly when changes are made to other parts of the software.

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#146

  1. A method by which individual units of code are tested to determine if they are fit for use

  2. Unit testing is important in refactoring as it insures all parts of the code are working properly.

  3. By testing parts of a program first then test the sum of the parts, it makes it easier for integration.

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#147
  1. individual units of source code are tested to determine if they are fit for use
  2. unit testing allows the programmer to refactor code at a later date, and make sure the module still works correctly
  3. unit testing may reduce uncertainty in the units themselves and can be used in a bottom up testing style approach
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#148
  1. a method by which individual units of source code are tested to determine if they are fit for use.
  2. to make sure the behaviour of the program does not change
  3. it makes the testing process easier. First test parts of the system and when acting wright an integration test will proof the program works as expected.
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#149

  1. **What is Unit Testing?
    The testing of the various unit of the source of the code to ensure they are fit for use by the end users.

  2. Refactoring means that you change and (hopefully) improve the internal structure of the code without changing the behaviour of the code. For example, developers may change a piece of code in order to make the code run faster but still perform the same task. Why is unit testing important for refactoring?

The unit testing allows the programmer to refactor code at a later date, and make sure the module still works correctly.

Whenever a change causes a fault, it can be quickly identified and fixed.

  1. How does Unit Testing help the bottom-up testing approach?

Since you test different parts first with unit testing, it gets easier to test the whole code after

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#150
  1. It is the method by which individual units of source code are tested to determine if they are fit for use.
  2. The procedure is to write test cases for all functions and methods so that whenever a change causes a fault, it can be quickly identified and fixed.
  3. Unit testing may reduce uncertainty in the units themselves and can be used in a bottom-up testing style approach. By testing the parts of a program first and then testing the sum of its parts, integration testing becomes much easier.
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#151

1 unit testing is a method where you test smaller, individual and separated parts of the common implementation.
2 unit testing is important for refactoring, because it makes the retesting less effortable, because only a single needs to be tested if it delivers the expected result. It is not necessary to test the complete implementation, which saves time and effort.
3 you can first test the single units and check their results before checking the sum and orchestra of all units together. if the units are tested successfully it enhances the chance of a successfull integration test.

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#152
  1. Unit testing is a way of tracking errors in a developers code. as they are building the project.
  2. Unit testing is important for refactoring because it gives you a chance to test the code and see if it actual does what its suppose to do. If not unit testing provides the team with information that can better help these project along with better code that produces better results.
  3. Unit testing helps the bottom-up approach By testing the parts of a program first and then testing the sum of its parts, integration testing becomes much easier.
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#153

  1. What is Unit Testing?
    we can test each part of code and see if all components are working as expected. And they are not affecting other parts negative way.

  2. Refactoring means that you change and (hopefully) improve the internal structure of the code without changing the behavior of the code. For example, developers may change a piece of code in order to make the code run faster but still perform the same task. Why is unit testing important for refactoring?
    We can see that something is not working properly right away and we can fix it in testing period which saves time.

  3. How does Unit Testing help the bottom-up testing approach?
    testing each part of code separately and only then tests whole code makes it easier.

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#154

  1. What is Unit Testing?
    Unit testing is a method by which individual units of source code are tested to determine if they are fit for use. A unit is the smallest testable part of an application. In procedural programming a unit may be an individual function or procedure. Unit tests are created by programmers or occasionally by white box testers.
    The goal of unit testing is to isolate each part of the program and show that the individual parts are correct. A unit test provides a strict, written contract that the piece of code must satisfy. As a result, it affords several benefits. Unit tests find problems early in the development cycle.

  2. Refactoring means that you change and (hopefully) improve the internal structure of the code without changing the behaviour of the code. For example, developers may change a piece of code in order to make the code run faster but still perform the same task. Why is unit testing important for refactoring?
    One of the benefits of having unit tests is so you can confidently refactor.
    If the refactoring does not change the public interface then you leave the unit tests as is and ensure after refactoring they all pass. If the refactoring does change the public interface then the tests should be rewritten first. Refactor until the new tests pass.
    I would never avoid any refactoring because it breaks the tests. Writing unit tests can be a pain but it’s worth the pain in the long run.
    Unit testing is important to make sure the piece of new code works correctly with the rest of existing code as a whole. It also makes it easier to identify errors elsewhere further down the track as the program gets larger. By performing refactoring code for this piece of code, it helps ruling out it being source of error and prevent unnecessary testings.

  3. How does Unit Testing help the bottom-up testing approach?
    Unit tests involves testing the smallest individual parts of the program separately first (bottom-up) before they get integrated into the whole system. So testing parts first and then testing the sum of its parts, integration testing becomes much easier.

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#155

  1. What is Unit Testing?
    It’s testing specific parts of the software. A unit is the smallest testable part.

  2. Refactoring means that you change and (hopefully) improve the internal structure of the code without changing the behavior of the code. For example, developers may change a piece of code in order to make the code run faster but still perform the same task. Why is unit testing important for refactoring?
    Retesting a refactored code is crucial to knowing whether this new format breaks the previous functionalities it had.

  3. How does Unit Testing help the bottom-up testing approach?
    By unit testing, we are able to accurately determine at what point the program breaks. This makes it easier for developers to fix code as they go, helping the structure of the application itself.

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#156

Excellent answer sir! really well documented! keep it like that please! :muscle:

Carlos Z.

#157
  • unit testing is for testing individual parts of the code
  • To ensure it still works like before without errors
  • Starting with an integration test without doing the unit test first can lead to complications as one does not know what part of a program an error is coming from.
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#158
  1. What is Unit Testing?

A unit test is done when software is tested at its smallest testable unit of an application.

  1. Refactoring means that you change and (hopefully) improve the internal structure of the code without changing the behaviour of the code. For example, developers may change a piece of code in order to make the code run faster but still perform the same task. Why is unit testing important for refactoring?

With code being separated into manageable units, it is easier for a program to discover any issues in the code. Problems are found early in the developmet cycle.

  1. How does Unit Testing help the bottom-up testing approach?

It allows for testing of the lower level parts first, then move to the higher level and sum of its parts later.

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#159
  1. Unit testing is a method by which individual units of source code are tested to determine if they are fit for use
  2. Unit tests find problems early in the development cycle and allows the programmer to refactor code at a later date, and make sure the module still works correctly. Whenever a change causes a fault, it can be quickly identified and changed.
  3. By testing the parts of a program first and then testing the sum of its parts, integration testing becomes much easier.
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#160

  1. Unit testing is a method by which individual units of source code are tested to determine if they are fit for use.

  2. Unit testing allows the programmer to refactor code at a later date, and make sure the module still works correctly

  3. Unit testing may reduce uncertainty in the units themselves by testing the parts of a program first and then testing the sum of its parts.

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