1 files changed, 54 insertions, 0 deletions
diff --git a/src/test/scala/ProductTypeFormats.scala b/src/test/scala/ProductTypeFormats.scala
new file mode 100644
index 0000000..9755198
--- /dev/null
+++ b/src/test/scala/ProductTypeFormats.scala
@@ -0,0 +1,54 @@
+package xyz.driver.json
+
+import spray.json._
+
+import org.scalatest._
+
+class ProductTypeFormats
+    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)
+
+  "No-parameter product" should behave like checkCoherence(A(), "{}")
+
+  "Simple parameter product" should behave like checkCoherence(
+    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 checkCoherence(
+    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 checkCoherence(
+    D,
+    """"D""""
+  )
+
+  "Case object as parameter" should behave like checkCoherence(
+    E(D),
+    """{"d":"D"}"""
+  )
+
+  // custom format for F, that inverts the value of parameter x
+  implicit val fFormat: JsonFormat[F] = new JsonFormat[F] {
+    override def write(f: F): JsValue = JsObject("x" -> JsNumber(-f.x))
+    override def read(js: JsValue): F =
+      F(-js.asJsObject.fields("x").convertTo[Int])
+  }
+
+  "Overriding with a custom format" should behave like checkCoherence(
+    F(2),
+    """{"x":-2}"""
+  )
+
+}