July 2013
Intermediate to advanced
176 pages
3h 14m
German
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Kapitel 5. Unit-Tests mit JUnit
JUnit ist ein Regression-Testing-Framework, das von Kent Beck und Erich Gamma entwickelt wurde. Da Erich Gamma auch jahrelang Projektleiter für das Java-Toolkit von Eclipse war, ist es kein Wunder, dass JUnit gut in die IDE integriert wurde. In Eclipse 4.3 ist es die JUnit Version 4.11.
Eine einfache Fakultätsdemo
Zum Ausprobieren von Unit-Tests in Eclipse legen wir zunächst ein Projekt namens Fakultaet an, das eine Klasse namens Fakultaet enthält. In dieser Klasse sollten Sie die folgende berechne( )-Methode deklarieren:
public class Fakultaet { public static long berechne(int x) { if (x == 0) return 1L; return x + berechne(x – 1); } }
Hinweis
Sollte Ihnen der hässliche kleine Fehler in diesem Code aufgefallen sein, ...
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