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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._
class ReadmeSpec extends Specification {
"The Usage snippets" should {
"behave as expected" in {
import DefaultJsonProtocol._
val source = """{ "some": "JSON source" }"""
val jsonAst = source.parseJson
jsonAst mustEqual JsObject("some" -> JsString("JSON source"))
val json2 = jsonAst.prettyPrint
json2 mustEqual
"""{
| "some": "JSON source"
|}""".stripMargin
val jsonAst2 = List(1, 2, 3).toJson
jsonAst2 mustEqual JsArray(JsNumber(1), JsNumber(2), JsNumber(3))
}
}
case class Color(name: String, red: Int, green: Int, blue: Int)
val color = Color("CadetBlue", 95, 158, 160)
"The case class example" should {
"behave as expected" in {
object MyJsonProtocol extends DefaultJsonProtocol {
implicit val colorFormat = jsonFormat4(Color)
}
import MyJsonProtocol._
color.toJson.convertTo[Color] mustEqual color
}
}
"The non case class (array) example" should {
"behave as expected" in {
object MyJsonProtocol extends DefaultJsonProtocol {
implicit object ColorJsonFormat extends JsonFormat[Color] {
def write(c: Color) =
JsArray(JsString(c.name), JsNumber(c.red), JsNumber(c.green), JsNumber(c.blue))
def read(value: JsValue) = value match {
case JsArray(Seq(JsString(name), JsNumber(red), JsNumber(green), JsNumber(blue))) =>
new Color(name, red.toInt, green.toInt, blue.toInt)
case _ => deserializationError("Color expected")
}
}
}
import MyJsonProtocol._
color.toJson.convertTo[Color] mustEqual color
}
}
"The non case class (object) example" should {
"behave as expected" in {
object MyJsonProtocol extends DefaultJsonProtocol {
implicit object ColorJsonFormat extends JsonFormat[Color] {
def write(c: Color) = JsObject(
"name" -> JsString(c.name),
"red" -> JsNumber(c.red),
"green" -> JsNumber(c.green),
"blue" -> JsNumber(c.blue)
)
def read(value: JsValue) = {
value.asJsObject.getFields("name", "red", "green", "blue") match {
case Seq(JsString(name), JsNumber(red), JsNumber(green), JsNumber(blue)) =>
new Color(name, red.toInt, green.toInt, blue.toInt)
case _ => throw new DeserializationException("Color expected")
}
}
}
}
import MyJsonProtocol._
color.toJson.convertTo[Color] mustEqual color
}
}
}
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