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Diffstat (limited to 'jvm/src/test/scala/spray/json/ProductFormatsSpec.scala')
-rw-r--r-- | jvm/src/test/scala/spray/json/ProductFormatsSpec.scala | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/jvm/src/test/scala/spray/json/ProductFormatsSpec.scala b/jvm/src/test/scala/spray/json/ProductFormatsSpec.scala new file mode 100644 index 0000000..f42c46d --- /dev/null +++ b/jvm/src/test/scala/spray/json/ProductFormatsSpec.scala @@ -0,0 +1,209 @@ +/* + * 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 Test0() + case class Test2(a: Int, b: Option[Double]) + case class Test3[A, B](as: List[A], bs: List[B]) + case class Test4(t2: Test2) + case class TestTransient(a: Int, b: Option[Double]) { + @transient var c = false + } + @SerialVersionUID(1L) // SerialVersionUID adds a static field to the case class + case class TestStatic(a: Int, b: Option[Double]) + case class TestMangled(`foo-bar!`: Int, `User ID`: String, `ü$bavf$u56ú$`: Boolean, `-x-`: Int, `=><+-*/!@#%^&~?|`: Float) + + trait TestProtocol { + this: DefaultJsonProtocol => + implicit val test0Format = jsonFormat0(Test0) + implicit val test2Format = jsonFormat2(Test2) + implicit def test3Format[A: JsonFormat, B: JsonFormat] = jsonFormat2(Test3.apply[A, B]) + implicit def test4Format = jsonFormat1(Test4) + implicit def testTransientFormat = jsonFormat2(TestTransient) + implicit def testStaticFormat = jsonFormat2(TestStatic) + implicit def testMangledFormat = jsonFormat5(TestMangled) + } + 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(Symbol("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 in field 'a'")) + ) + "expose the fieldName in the DeserializationException when able" in { + JsNull.convertTo[Test2] must throwA[DeserializationException].like { + case DeserializationException(_, _, fieldNames) => fieldNames mustEqual "a" :: Nil + } + } + "expose all gathered fieldNames in the DeserializationException" in { + JsObject("t2" -> JsObject("a" -> JsString("foo"))).convertTo[Test4] must throwA[DeserializationException].like { + case DeserializationException(_, _, fieldNames) => fieldNames mustEqual "t2" :: "a" :: Nil + } + } + } + + "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 + } + } + "A JsonFormat for a case class with 18 parameters and created with `jsonFormat`" should { + object Test18Protocol extends DefaultJsonProtocol { + implicit val test18Format = jsonFormat18(Test18) + } + case class Test18( + a1: String, + a2: String, + a3: String, + a4: String, + a5: Int, + a6: String, + a7: String, + a8: String, + a9: String, + a10: String, + a11: String, + a12: Double, + a13: String, + a14: String, + a15: String, + a16: String, + a17: String, + a18: String) + + import Test18Protocol._ + val obj = Test18("a1", "a2", "a3", "a4", 5, "a6", "a7", "a8", "a9", + "a10", "a11", 12d, "a13", "a14", "a15", "a16", "a17", "a18") + + val json = JsonParser("""{"a1":"a1","a2":"a2","a3":"a3","a4":"a4","a5":5,"a6":"a6","a7":"a7","a8":"a8","a9":"a9","a10":"a10","a11":"a11","a12":12.0,"a13":"a13","a14":"a14","a15":"a15","a16":"a16","a17":"a17","a18":"a18"}""") + "convert to a respective JsObject" in { + obj.toJson mustEqual json + } + "convert a JsObject to the respective case class instance" in { + json.convertTo[Test18] mustEqual obj + } + } + + "A JsonFormat for a generic case class with an explicitly provided type parameter" should { + "support the jsonFormat1 syntax" in { + case class Box[A](a: A) + object BoxProtocol extends DefaultJsonProtocol { + implicit val boxFormat = jsonFormat1(Box[Int]) + } + import BoxProtocol._ + Box(42).toJson === JsObject(Map("a" -> JsNumber(42))) + } + } + + "A JsonFormat for a case class with transient fields and created with `jsonFormat`" should { + import TestProtocol1._ + val obj = TestTransient(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[TestTransient] mustEqual obj + } + } + + "A JsonFormat for a case class with static fields and created with `jsonFormat`" should { + import TestProtocol1._ + val obj = TestStatic(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[TestStatic] mustEqual obj + } + } + + "A JsonFormat created with `jsonFormat`, for a case class with 0 elements," should { + import TestProtocol1._ + val obj = Test0() + val json = JsObject() + "convert to a respective JsObject" in { + obj.toJson mustEqual json + } + "convert a JsObject to the respective case class instance" in { + json.convertTo[Test0] mustEqual obj + } + "ignore additional members during deserialization" in { + JsObject("a" -> JsNumber(42)).convertTo[Test0] mustEqual obj + } + "throw a DeserializationException if the JsValue is not a JsObject" in ( + JsNull.convertTo[Test0] must throwA(new DeserializationException("Object expected")) + ) + } + + "A JsonFormat created with `jsonFormat`, for a case class with mangled-name members," should { + import TestProtocol1._ + val json = """{"ü$bavf$u56ú$":true,"=><+-*/!@#%^&~?|":1.0,"foo-bar!":42,"-x-":26,"User ID":"Karl"}""".parseJson + "produce the correct JSON" in { + TestMangled(42, "Karl", true, 26, 1.0f).toJson === json + } + "convert a JsObject to the respective case class instance" in { + json.convertTo[TestMangled] === TestMangled(42, "Karl", true, 26, 1.0f) + } + } +} |