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package cc.spray.json
import org.specs2.mutable._
import java.util.Arrays
class CollectionFormatsSpec extends Specification with DefaultJsonProtocol {
"The listFormat" should {
val list = List(1, 2, 3)
val json = JsArray(JsNumber(1), JsNumber(2), JsNumber(3))
"convert a List[Int] to a JsArray of JsNumbers" in {
list.toJson mustEqual json
}
"convert a JsArray of JsNumbers to a List[Int]" in {
json.convertTo[List[Int]] mustEqual list
}
}
"The arrayFormat" should {
val array = Array(1, 2, 3)
val json = JsArray(JsNumber(1), JsNumber(2), JsNumber(3))
"convert an Array[Int] to a JsArray of JsNumbers" in {
array.toJson mustEqual json
}
"convert a JsArray of JsNumbers to an Array[Int]" in {
Arrays.equals(json.convertTo[Array[Int]], array) must beTrue
}
}
"The mapFormat" should {
val map = Map("a" -> 1, "b" -> 2, "c" -> 3)
val json = JsObject(JsField("a", 1), JsField("b", 2), JsField("c", 3))
"convert a Map[String, Long] to a JsObject" in {
map.toJson mustEqual json
}
"be able to convert a JsObject to a Map[String, Long]" in {
json.convertTo[Map[String, Long]] mustEqual map
}
"throw an Exception when trying to serialize a map whose key are not serialized to JsStrings" in {
Map(1 -> "a").toJson must throwA(new SerializationException("Map key must be formatted as JsString, not '1'"))
}
}
"The immutableSetFormat" should {
val set = Set(1, 2, 3)
val json = JsArray(JsNumber(1), JsNumber(2), JsNumber(3))
"convert a Set[Int] to a JsArray of JsNumbers" in {
set.toJson mustEqual json
}
"convert a JsArray of JsNumbers to a Set[Int]" in {
json.convertTo[Set[Int]] mustEqual set
}
}
"The indexedSeqFormat" should {
val seq = collection.IndexedSeq(1, 2, 3)
val json = JsArray(JsNumber(1), JsNumber(2), JsNumber(3))
"convert a Set[Int] to a JsArray of JsNumbers" in {
seq.toJson mustEqual json
}
"convert a JsArray of JsNumbers to a IndexedSeq[Int]" in {
json.convertTo[collection.IndexedSeq[Int]] mustEqual seq
}
}
}
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