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-rw-r--r--shared/src/test/scala/ProductTypeFormatTests.scala77
1 files changed, 77 insertions, 0 deletions
diff --git a/shared/src/test/scala/ProductTypeFormatTests.scala b/shared/src/test/scala/ProductTypeFormatTests.scala
new file mode 100644
index 0000000..ce05000
--- /dev/null
+++ b/shared/src/test/scala/ProductTypeFormatTests.scala
@@ -0,0 +1,77 @@
+package spray.json
+
+import org.scalatest._
+
+class ProductTypeFormatTests
+ extends FlatSpec
+ with FormatTests
+ with DerivedFormats
+ with DefaultJsonProtocol {
+
+ case class A()
+ case class B(x: Int, b: String, mp: Map[String, Int])
+ case class C(b: B)
+ case object D
+ case class E(d: D.type)
+ case class F(x: Int)
+ case class G(f: F)
+
+ implicit val aFormat: RootJsonFormat[A] = jsonFormat[A]
+ implicit val bFormat: RootJsonFormat[B] = jsonFormat[B]
+ implicit val cFormat: RootJsonFormat[C] = jsonFormat[C]
+ implicit val dFormat: RootJsonFormat[D.type] = jsonFormat[D.type]
+ implicit val eFormat: RootJsonFormat[E] = jsonFormat[E]
+
+ "No-parameter product" should behave like checkRoundtrip(A(), "{}")
+
+ "Simple parameter product" should behave like checkRoundtrip(
+ B(42, "Hello World", Map("a" -> 1, "b" -> -1024)),
+ """{ "x": 42, "b": "Hello World", "mp": { "a": 1, "b": -1024 } }"""
+ )
+
+ "Nested parameter product" should behave like checkRoundtrip(
+ C(B(42, "Hello World", Map("a" -> 1, "b" -> -1024))),
+ """{"b" :{ "x": 42, "b": "Hello World", "mp": { "a": 1, "b": -1024 } } }"""
+ )
+
+ "Case object" should behave like checkRoundtrip(
+ D,
+ "{}"
+ )
+
+ "Case object as parameter" should behave like checkRoundtrip(
+ E(D),
+ """{"d":{}}"""
+ )
+
+ // custom format for F, that inverts the value of parameter x
+ implicit val fFormat: RootJsonFormat[F] = new RootJsonFormat[F] {
+ override def write(f: F): JsValue = JsObject("y" -> f.x.toJson)
+ override def read(js: JsValue): F =
+ F(js.asJsObject.fields("y").convertTo[Int])
+ }
+
+ "Overriding with a custom format" should behave like checkRoundtrip(
+ F(2),
+ """{"y":2}"""
+ )
+
+ implicit val gFormat: RootJsonFormat[G] = jsonFormat[G]
+
+ "Derving a format with a custom child format" should behave like checkRoundtrip(
+ G(F(2)),
+ """{"f": {"y":2}}"""
+ )
+
+ case class H(x: Boolean)
+ case class I(h: H)
+
+ // there is no format defined for H, Magnolia will generate one automatically
+ implicit val iFormat: RootJsonFormat[I] = jsonFormat[I]
+
+ "Deriving a format that has no implicit child formats available" should behave like checkRoundtrip(
+ I(H(true)),
+ """{"h": {"x":true}}"""
+ )
+
+}