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package cc.spray.json
import org.specs2.mutable._
import scala.Right
class StandardFormatsSpec extends Specification with DefaultJsonProtocol {
"The optionFormat" should {
"convert None to JsNull" in {
None.asInstanceOf[Option[Int]].toJson mustEqual JsNull
}
"convert JsNull to None" in {
JsNull.convertTo[Option[Int]] mustEqual None
}
"convert Some(Hello) to JsString(Hello)" in {
Some("Hello").asInstanceOf[Option[String]].toJson mustEqual JsString("Hello")
}
"convert JsString(Hello) to Some(Hello)" in {
JsString("Hello").convertTo[Option[String]] mustEqual Some("Hello")
}
}
"The eitherFormat" should {
val a: Either[Int, String] = Left(42)
val b: Either[Int, String] = Right("Hello")
"convert the left side of an Either value to Json" in {
a.toJson mustEqual JsNumber(42)
}
"convert the right side of an Either value to Json" in {
b.toJson mustEqual JsString("Hello")
}
"convert the left side of an Either value from Json" in {
JsNumber(42).convertTo[Either[Int, String]] mustEqual Left(42)
}
"convert the right side of an Either value from Json" in {
JsString("Hello").convertTo[Either[Int, String]] mustEqual Right("Hello")
}
}
"The tuple1Format" should {
"convert (42) to a JsNumber" in {
Tuple1(42).toJson mustEqual JsNumber(42)
}
"be able to convert a JsNumber to a Tuple1[Int]" in {
JsNumber(42).convertTo[Tuple1[Int]] mustEqual Tuple1(42)
}
}
"The tuple2Format" should {
val json = JsArray(JsNumber(42), JsNumber(4.2))
"convert (42, 4.2) to a JsArray" in {
(42, 4.2).toJson mustEqual json
}
"be able to convert a JsArray to a (Int, Double)]" in {
json.convertTo[(Int, Double)] mustEqual (42, 4.2)
}
}
}
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