+package net.pterodactylus.sone.test
+
+import org.junit.rules.ExternalResource
+import java.util.Locale
+
+/**
+ * JUnit [test rule][org.junit.rules.TestRule] that overrides the
+ * [JVM’s default locale][Locale.getDefault] for the duration of a test,
+ * restoring it to its previous value after the test.
+ */
+class OverrideLocale(private val locale: Locale) : ExternalResource() {
+
+ override fun before() {
+ previousLocale = Locale.getDefault()
+ Locale.setDefault(locale)
+ }
+
+ override fun after() {
+ Locale.setDefault(previousLocale)
+ }
+
+ private var previousLocale: Locale? = null
+
+}