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Fast-track Test-Driven Development

ABAPCodeRetreat St. Johann Tirol 2017

Software development is complex

Copyright Majer Consulting

hey boss everything is under control…

how is presented how the truth is

writing working software is not enough!

Test-Driven Development

“is a software development process that relies on the repetition of a very short development cycle: requirements are turned into very specific test cases, then the software is improved to pass the new tests, only. This is opposed to software development that allows software to be added that is not proven to meet requirements.

…TDD encourages simple designs and inspires confidence.

Test-driven development is related to the test-first programming concepts of extreme programming, begun in 1999,

but more recently has created more general interest in its own right.”

WIKIPEDIA:

Feedback-Driven

• write a test • make it fail • keep it simple • tests are examples • tests becomes

documentation

abapcoderetreat.events ACR

RED GREEN

REFACTOR

• get to green fast • take baby steps • stuck? undo and start

over • write only enough code

to pass the test

• remove duplication (in code and tests)

• rename and clean up • run tests and stay green • change implementation

not behaviour • improve structure in

small steps

you start here!

Test Driven Development Cycle

THINK!

Feedback-Driven Demo

Hands on is still the best way to knowledge…

Damir Majer Majer Consulting > Agile Solution Management @majcon info@majcon.de

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