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Damir Majer Developer, Dev Coach and Trainer @majcon
Unit-Tests mit ABAP® Unit dpunkt.verlag
Besseres ABAP Schnell, sicher, robust SAP Press
CodeKata ABAP Collaboration Project www.codekata.io
Software development is complex
Copyright Majer Consulting
hey boss everything is under control…
how is presented how the truth is
Systematic testing
5
Testing techniquesAd-hoc testingError guessing
Boundary value analysis Path coverage testingIntuitive testing
Semantic testingControl flow testing Business process testing
Branch coverage testing
State transition analysisCondition coverage testing
Cause-effect analysis Dataflow testing
Classification tree method
Compiler testingTesting in pairs
Elementary comparison test
Weak point testing
Area analysis testing
Equivalence class partitioning analysis
Testing with a random value
Syntax testing Statement coverage testing
How to achieve testing during the implementation phase?
Unit vs. integration testing
7
Integration testing Unit testing
Unit-Testing
“unit testing is a software testing method
by which individual units of source code, sets of one or more computer program modules together with associated control data, usage procedures, and operating procedures,
are tested to determine whether they are fit for use
WIKIPEDIA:
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:
11and now?
Execution of ABAP Unit-Tests SAP GUI or ABAP in Eclipse:
CTRL+SHIFT+F10
ABAP Unit on a Postcard
plan actualvs.
ABAP Unit Assertion-Methods
Test Driven Development
• 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!
What is your experience?
one more thing…
ABAP Trainings with focus on ABAP Unit and TDD
WDE401WDAGIL
BC401
TDD with ABAP cATDD
Hands on…
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