de.weltraumschaf.commons.testing.rules

Class JavaDefaultLocale

java.lang.Object

org.junit.rules.ExternalResource

de.weltraumschaf.commons.testing.rules.JavaDefaultLocale

All Implemented Interfaces:

org.junit.rules.TestRule

public final class JavaDefaultLocale
extends org.junit.rules.ExternalResource

This rule sets the default locale to a desired locale and resets it after the tests to the value before.

This is useful e.g. for tests which relies on SimpleDateFormat because this piece of crap uses the systems locale in a non accessible static way. Which leads to tests which works on OS with one local but not on machines with an other locale. Praise the SUN engineers, not!

Example:

 
 public class TestSomething {

   @Rule
   public final JavaDefaultLocale localeRule = new JavaDefaultLocale(Locale.ENGLISH);

   @Test
   public void someTestMethod() {}
 }
 

Since:

2.1.0

Author:

Sven Strittmatter <weltraumschaf@googlemail.com>

Field Summary

Fields

Modifier and Type	Field and Description
private Locale	backup The origin locale.
private Locale	wanted The locale wanted as default for Java's locale.

Constructor Summary

Constructors

Constructor and Description
JavaDefaultLocale(Locale wanted) Dedicated constructor.

Method Summary

Modifier and Type	Method and Description
protected void	after()
protected void	before()

Methods inherited from class org.junit.rules.ExternalResource

apply

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

wanted

private final Locale wanted

The locale wanted as default for Java's locale.

backup

private Locale backup

The origin locale.

Constructor Detail

JavaDefaultLocale

public JavaDefaultLocale(Locale wanted)

Dedicated constructor.

Parameters:

wanted - must not be null

Method Detail

before

protected void before()
               throws Throwable

Overrides:

before in class org.junit.rules.ExternalResource

Throws:

Throwable

after

protected void after()

Overrides:

after in class org.junit.rules.ExternalResource