1 files changed, 24 insertions, 0 deletions
diff --git a/shared/src/test/scala/ImplicitDerivedFormatTests.scala b/shared/src/test/scala/ImplicitDerivedFormatTests.scala
new file mode 100644
index 0000000..1d54ae9
--- /dev/null
+++ b/shared/src/test/scala/ImplicitDerivedFormatTests.scala
@@ -0,0 +1,24 @@
+package spray.json
+
+import org.scalatest._
+
+class ImplicitDerivedFormatTests
+    extends FlatSpec
+    with FormatTests
+    with ImplicitDerivedFormats
+    with DefaultJsonProtocol {
+
+  case class B(x: Int, b: String, mp: Map[String, Int])
+  case class C(b: B)
+
+  "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 with custom child format" 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 } } }"""
+  )
+
+}