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Diffstat (limited to 'src/test/scala/cc/spray/json/CustomFormatSpec.scala')
-rw-r--r-- | src/test/scala/cc/spray/json/CustomFormatSpec.scala | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/src/test/scala/cc/spray/json/CustomFormatSpec.scala b/src/test/scala/cc/spray/json/CustomFormatSpec.scala new file mode 100644 index 0000000..e8feb59 --- /dev/null +++ b/src/test/scala/cc/spray/json/CustomFormatSpec.scala @@ -0,0 +1,45 @@ +/* + * 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 cc.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 }""".asJson.convertTo[MyType] mustEqual value + } + "support full round-trip (de)serialization" in { + value.toJson.convertTo[MyType] mustEqual value + } + } + +}
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