Play Framework/Scala example source code file (LangSpec.scala)

This example Play Framework source code file (LangSpec.scala) is included in my "Source Code Warehouse" project. The intent of this project is to help you more easily find Play Framework (and Scala) source code examples by using tags.

All credit for the original source code belongs to Play Framework; I'm just trying to make examples easier to find. (For my Scala work, see my Scala examples and tutorials.)

Play Framework tags/keywords

api, en, en-us, es, fakeapplication, i18n, lang, none, play, play framework, s, specification, t, us

The LangSpec.scala Play Framework example source code

/*
 * Copyright (C) 2009-2013 Typesafe Inc. <http://www.typesafe.com>
 */
package play.api.i18n

import org.specs2.mutable.Specification
import play.api._

class LangSpec extends Specification {
  "lang spec" should {
    "allow selecting preferred language" in {
      implicit val app: Application = FakeApplication(Map("application.langs" -> "en-US,es-ES,de"))
      val esEs = Lang("es", "ES")
      val es = Lang("es")
      val deDe = Lang("de", "DE")
      val de = Lang("de")
      val enUs = Lang("en", "US")

      "with exact match" in {
        Lang.preferred(Seq(esEs)) must_== esEs
      }

      "with just language match" in {
        Lang.preferred(Seq(de)) must_== de
      }

      "with just language match country specific" in {
        Lang.preferred(Seq(es)) must_== esEs
      }

      "with language and country not match just language" in {
        Lang.preferred(Seq(deDe)) must_== enUs
      }

      "with case insensitive match" in {
        Lang.preferred(Seq(Lang("ES", "es"))) must_== esEs
      }

      "in order" in {
        Lang.preferred(Seq(esEs, enUs)) must_== esEs
      }
    }

    "normalize before comparsion" in {
      Lang.get("en-us") must_== Lang.get("en-US")
      Lang.get("EN-us") must_== Lang.get("en-US")
      Lang.get("ES-419") must_== Lang.get("es-419")
      Lang.get("en-us").hashCode must_== Lang.get("en-US").hashCode
      Lang("en-us").code must_== "en-US"
      Lang("EN-us").code must_== "en-US"
      Lang("EN").code must_== "en"

      "even with locales with different caseness" in trLocaleContext {
        Lang.get("ii-ii") must_== Lang.get("ii-II")
      }

    }

    "forbid instantiation of lanague code" in {

      "with wrong format" in {
        Lang.get("en-UUS") must_== None
        Lang.get("een-US") must_== None
        Lang.get("en_US") must_== None
      }

      "with extraneous characters" in {
        Lang.get("en-ÚS") must_== None
      }

    }

  }
}

object trLocaleContext extends org.specs2.mutable.Around {
  def around[T : org.specs2.execute.AsResult](t: =>T) = {
    val defaultLocale = java.util.Locale.getDefault
    java.util.Locale.setDefault(new java.util.Locale("tr"))
    val result = org.specs2.execute.AsResult(t)
    java.util.Locale.setDefault(defaultLocale)
    result
  }
}