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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,
"{}"
)
"Case object as parameter" should behave like checkCoherence(
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("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}"""
)
}
|
