https://github.com/nike-inc/tdd-training-cube
Papercraft cube used as training aid for Outside-In Test Driven Development
https://github.com/nike-inc/tdd-training-cube
mnemonic outside-in-tdd papercraft tdd-workflow test-driven-development training-materials uncle-bob
Last synced: 4 months ago
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Papercraft cube used as training aid for Outside-In Test Driven Development
- Host: GitHub
- URL: https://github.com/nike-inc/tdd-training-cube
- Owner: Nike-Inc
- License: cc-by-4.0
- Created: 2019-06-17T17:08:23.000Z (almost 7 years ago)
- Default Branch: master
- Last Pushed: 2021-11-30T08:36:11.000Z (over 4 years ago)
- Last Synced: 2025-06-07T11:43:23.486Z (about 1 year ago)
- Topics: mnemonic, outside-in-tdd, papercraft, tdd-workflow, test-driven-development, training-materials, uncle-bob
- Homepage:
- Size: 6.22 MB
- Stars: 12
- Watchers: 1
- Forks: 4
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- Changelog: CHANGELOG.md
- Contributing: CONTRIBUTING.md
- License: LICENSE.txt
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README
# TDD Training Cube
The TDD Training Cube helps you keep track of which Outside-In Test-Driven Development phase you
are currently operating in and what steps to take once you get there. Print out the [.pdf file](https://github.com/Nike-Inc/tdd-training-cube/blob/master/TDDCube.pdf) [⬇](https://github.com/Nike-Inc/tdd-training-cube/raw/master/TDDCube.pdf "Download"),
follow the assembly instructions, and use the TDD Training Cube whenever you practice test-driving
your code. Each face of the TDD Training Cube contains [conditions and actions](https://github.com/Nike-Inc/tdd-training-cube/blob/master/TDDCubeCheatSheet.pdf) [⬇](https://github.com/Nike-Inc/tdd-training-cube/raw/master/TDDCubeCheatSheet.pdf "Download") to take in order to
transition between TDD phases; use the up-face of the cube as a reminder of what you are doing in
each TDD cycle.
The six
Outside-In Test-Driven Development phases depicted on the TDD Training Cube are:
* (Green, Outer, Start Here) **All Functional Tests Pass**
* (Red, Outer) **A Functional Test is Failing**
* (Blue, Outer) **Refactor Functional Tests** -or- **Perform DevOps Tasks**
* (Green, Inner) **All Unit Tests Pass**
* (Red, Inner) **A Unit Test is Failing**
* (Blue, Inner) **Refactor Unit Tests** -or- **Refactor Production Code**
## History
The TDD Training Cube was inspired by Uncle Bob's tri-billed, red-green-refactor baseball cap.
Uncle Bob turns his cap to indicate to the viewer which TDD phase he is currently operating in
while he demonstrates test-driven development.
We had our own Test-Driven Development screencast videos to produce for the TDD Learnstitute. But,
we needed to track which of the six Outside-In TDD phases we were in, rather than Uncle Bob's three
phases. We felt it would be too silly to construct a six-billed red-green-refactor hat for our
videos. So, we opted instead to create a papercraft cube where, similar to Uncle Bob's cap, the
face of the cube displayed to the viewer indicates which TDD phase we are currently operating in.
Also, Harry J. W. Percival's [Obey the Testing Goat](http://www.obeythetestinggoat.com/) includes a [workflow diagram](http://www.obeythetestinggoat.com/book/chapter_working_incrementally.html#TDD-double-loop) that influenced the development of the TDD Training Cube.
## Protips
Handy tips to get the most out of your TDD Training Cube:
* Reminder: you control your cube, your cube does _not_ control you
* TDD Training Cube power levels will naturally increase with code coverage. **Never** exceed
the posted, safe, 100% code coverage limits
* Do not taunt TDD Training Cube!
* Do not hold your TDD Training Cube close to an LSS Training Sphere or an OE-1 Training Hyperboloid
due to continuity slippage risks
* Never open the TDD Training Cube. Though it is a wondrous item, once opened, TDD Training Cube
will cease to contain an extradimensional space
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The TDD Training Cube is Copyright (C) 2019, Nike, Inc. It is licensed under the Creative Commons
Attribution 4.0 International license.
