1 files changed, 80 insertions, 0 deletions
diff --git a/src/test/scala/xyz/driver/core/MessagesTest.scala b/src/test/scala/xyz/driver/core/MessagesTest.scala
new file mode 100644
index 0000000..dc44ee1
--- /dev/null
+++ b/src/test/scala/xyz/driver/core/MessagesTest.scala
@@ -0,0 +1,80 @@
+package xyz.driver.core
+
+import java.util.Locale
+
+import com.typesafe.config.{ConfigException, ConfigFactory}
+import org.mockito.Mockito._
+import org.scalatest.mock.MockitoSugar
+import org.scalatest.{FlatSpec, Matchers}
+import xyz.driver.core.logging.Logger
+import xyz.driver.core.messages.Messages
+
+import scala.collection.JavaConversions._
+
+class MessagesTest extends FlatSpec with Matchers with MockitoSugar {
+
+  val englishLocaleMessages =
+    Map("en.greeting" -> "Hello {0}!", "en.greetingFullName" -> "Hello {0} {1} {2}!", "en.hello" -> "Hello world!")
+
+  "Messages" should "read messages from config and format with parameters" in {
+
+    val log            = mock[Logger]
+    val messagesConfig = ConfigFactory.parseMap(englishLocaleMessages)
+
+    val messages = Messages.messages(messagesConfig, log, Locale.US)
+
+    messages("hello") should be("Hello world!")
+    messages("greeting", "Homer") should be("Hello Homer!")
+    messages("greetingFullName", "Homer", "J", "Simpson") should be("Hello Homer J Simpson!")
+  }
+
+  it should "be able to read messages for different locales" in {
+
+    val log = mock[Logger]
+
+    val messagesConfig = ConfigFactory.parseMap(
+      englishLocaleMessages ++ Map(
+        "zh.hello"            -> "你好，世界!",
+        "zh.greeting"         -> "你好，{0}!",
+        "zh.greetingFullName" -> "你好，{0} {1} {2}!"
+      ))
+
+    val englishMessages    = Messages.messages(messagesConfig, log, Locale.US)
+    val englishMessagesToo = Messages.messages(messagesConfig, log, Locale.ENGLISH)
+    val chineseMessages    = Messages.messages(messagesConfig, log, Locale.CHINESE)
+
+    englishMessages("hello") should be("Hello world!")
+    englishMessages("greeting", "Homer") should be("Hello Homer!")
+    englishMessages("greetingFullName", "Homer", "J", "Simpson") should be("Hello Homer J Simpson!")
+
+    englishMessagesToo("hello") should be(englishMessages("hello"))
+    englishMessagesToo("greeting", "Homer") should be(englishMessages("greeting", "Homer"))
+    englishMessagesToo("greetingFullName", "Homer", "J", "Simpson") should be(
+      englishMessages("greetingFullName", "Homer", "J", "Simpson"))
+
+    chineseMessages("hello") should be("你好，世界!")
+    chineseMessages("greeting", "Homer") should be("你好，Homer!")
+    chineseMessages("greetingFullName", "Homer", "J", "Simpson") should be("你好，Homer J Simpson!")
+  }
+
+  it should "raise exception when locale is not available" in {
+
+    val log            = mock[Logger]
+    val messagesConfig = ConfigFactory.parseMap(englishLocaleMessages)
+
+    an[ConfigException.Missing] should be thrownBy
+      Messages.messages(messagesConfig, log, Locale.GERMAN)
+  }
+
+  it should "log a problem, when there is no message for key" in {
+
+    val log            = mock[Logger]
+    val messagesConfig = ConfigFactory.parseMap(englishLocaleMessages)
+
+    val messages = Messages.messages(messagesConfig, log, Locale.US)
+
+    messages("howdy") should be("howdy")
+
+    verify(log).error(s"Message with key 'howdy' not found for locale 'en'")
+  }
+}