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Getting Started In Unit Testing For Games

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Getting Started In Unit Testing For Games

By Bernice Anne W. Chua

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Getting Started In Unit Testing For Games

twitter.com/ChuaBernice��Slides available at BerniceChua.com

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Getting Started In Unit Testing For Games

Originally given on: https://www.meetup.com/noisebridge/events/vkqldsyccgbkb/

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Getting Started In Unit Testing For Games

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Getting Started In Unit Testing For Games

NUnit | NSubstitute | Fluent Assertions | Humble Object Pattern | Builder Pattern

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Unit Testing

Definition:

  • software testing method
  • individual units of source code are tested to determine whether they are work properly.
  • what are being tested?
    • sets of one or more computer program modules together
    • associated control data
    • usage procedures
    • operating procedures

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Limitations Of Unit Testing

  • They can only test what you tell them to test. If there’s something that wasn’t accounted for, unit testing cannot test these.�
  • Unit tests can only test if something works, not if something is fun/intuitive/enjoyable. (Playtesting is still important.)�
  • Just because the unit tests pass, still need to test if everything works well together. (This calls for Integration Testing and End-To-End Testing.)

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Other Kinds Of Testing

  • NFT (Non-Functional Testing)�
  • Regression Testing�
  • Integration Testing�
  • End-To-End Testing�
  • User Experience Testing�
  • A/B Testing�
  • Playtesting

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Unit Testing

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Advantages Of Unit Testing

  • Make sure that the code being made works, before adding new code.
    • Easier for finding bugs. �
  • Faster development time / save time.
    • No need to play the game for testing if the code or game logic works.
    • Time of testers can be used for testing for fun, or testing for all the other things that unit tests cannot cover. �
  • Easier to work with other developers.
    • When other developers see what the unit tests are testing for, it’s easier for them to figure out the code, aside from the documentation/comments/etc.

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Unit Testing

Where can this be used?

  • Although the format here is teaching with Unity and C#, unit testing is game-engine agnostic and language agnostic, meaning the principles taught here can also be used for Unreal Engine, Godot Engine, etc.

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Unit Testing For Godot Engine

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Unit Testing - Unity Example

How To Follow Along:

  • download & install Unity (preferably 2019 & later)
  • download & install NSubstitute:
    • version 2.0.3 -- https://www.nuget.org/packages/NSubstitute/2.0.3
    • installation instructions here: https://youtu.be/r7VkbV0PRC8?t=1116
      • Nsubstitute.2.0.3.nupkg > lib > net35 > NSubstitute.dll
  • download & install Fluent Assertions

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Unit Testing - Unity Example

What Will Be Covered:

  • NUnit
  • NSubstitute
  • Fluent Assertions
  • Humble Object Pattern
  • Builder Pattern

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Unit Testing - Unity Example

Important Things About Unit Tests:

  • Each test must be self-contained (one testcase function/method cannot rely on another testcase function/method).

Important Parts Of A Unit Test:

  • Assign / Arrange
  • Act
  • Assert

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Unit Testing - Unity Example

How To Follow Along:

  • (go to Unity Live Coding)

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Learning Resources

Jason Weimann

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Learning Resources

Infallible Code

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Learning Resources

Miscellaneous

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Learning Resources

Miscellaneous

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Any Questions?

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Getting Started In Unit Testing For Games

Originally given on: https://www.meetup.com/noisebridge/events/vkqldsyccgbkb/

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Getting Started In Unit Testing For Games

twitter.com/ChuaBernice��Slides available at BerniceChua.com