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Diffstat (limited to 'src/test/scala/spray/json/ProductFormatsSpec.scala')
-rw-r--r-- | src/test/scala/spray/json/ProductFormatsSpec.scala | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/src/test/scala/spray/json/ProductFormatsSpec.scala b/src/test/scala/spray/json/ProductFormatsSpec.scala new file mode 100644 index 0000000..e452639 --- /dev/null +++ b/src/test/scala/spray/json/ProductFormatsSpec.scala @@ -0,0 +1,87 @@ +/* + * 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 ProductFormatsSpec extends Specification { + + case class Test2(a: Int, b: Option[Double]) + case class Test3[A, B](as: List[A], bs: List[B]) + + trait TestProtocol { + this: DefaultJsonProtocol => + implicit val test2Format = jsonFormat2(Test2) + implicit def test3Format[A: JsonFormat, B: JsonFormat] = jsonFormat2(Test3.apply[A, B]) + } + object TestProtocol1 extends DefaultJsonProtocol with TestProtocol + object TestProtocol2 extends DefaultJsonProtocol with TestProtocol with NullOptions + + "A JsonFormat created with `jsonFormat`, for a case class with 2 elements," should { + import TestProtocol1._ + val obj = Test2(42, Some(4.2)) + val json = JsObject("a" -> JsNumber(42), "b" -> JsNumber(4.2)) + "convert to a respective JsObject" in { + obj.toJson mustEqual json + } + "convert a JsObject to the respective case class instance" in { + json.convertTo[Test2] mustEqual obj + } + "throw a DeserializationException if the JsObject does not all required members" in ( + JsObject("b" -> JsNumber(4.2)).convertTo[Test2] must + throwA(new DeserializationException("Object is missing required member 'a'")) + ) + "not require the presence of optional fields for deserialization" in { + JsObject("a" -> JsNumber(42)).convertTo[Test2] mustEqual Test2(42, None) + } + "not render `None` members during serialization" in { + Test2(42, None).toJson mustEqual JsObject("a" -> JsNumber(42)) + } + "ignore additional members during deserialization" in { + JsObject("a" -> JsNumber(42), "b" -> JsNumber(4.2), "c" -> JsString('no)).convertTo[Test2] mustEqual obj + } + "not depend on any specific member order for deserialization" in { + JsObject("b" -> JsNumber(4.2), "a" -> JsNumber(42)).convertTo[Test2] mustEqual obj + } + "throw a DeserializationException if the JsValue is not a JsObject" in ( + JsNull.convertTo[Test2] must throwA(new DeserializationException("Object expected")) + ) + } + + "A JsonProtocol mixing in NullOptions" should { + "render `None` members to `null`" in { + import TestProtocol2._ + Test2(42, None).toJson mustEqual JsObject("a" -> JsNumber(42), "b" -> JsNull) + } + } + + "A JsonFormat for a generic case class and created with `jsonFormat`" should { + import TestProtocol1._ + val obj = Test3(42 :: 43 :: Nil, "x" :: "y" :: "z" :: Nil) + val json = JsObject( + "as" -> JsArray(JsNumber(42), JsNumber(43)), + "bs" -> JsArray(JsString("x"), JsString("y"), JsString("z")) + ) + "convert to a respective JsObject" in { + obj.toJson mustEqual json + } + "convert a JsObject to the respective case class instance" in { + json.convertTo[Test3[Int, String]] mustEqual obj + } + } + +} |