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/*
* Copyright (C) 2011 Mathias Doenitz
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package spray.json
import org.specs2.mutable.Specification
class CustomFormatSpec extends Specification with DefaultJsonProtocol {
case class MyType(name: String, value: Int)
implicit val MyTypeProtocol = new RootJsonFormat[MyType] {
def read(json: JsValue) = {
json.asJsObject.getFields("name", "value") match {
case Seq(JsString(name), JsNumber(value)) => MyType(name, value.toInt)
case _ => deserializationError("Expected fields: 'name' (JSON string) and 'value' (JSON number)")
}
}
def write(obj: MyType) = JsObject("name" -> JsString(obj.name), "value" -> JsNumber(obj.value))
}
"A custom JsonFormat built with 'asJsonObject'" should {
val value = MyType("bob", 42)
"correctly deserialize valid JSON content" in {
"""{ "name": "bob", "value": 42 }""".parseJson.convertTo[MyType] mustEqual value
}
"support full round-trip (de)serialization" in {
value.toJson.convertTo[MyType] mustEqual value
}
}
}
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