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Added tests to format value classes #1041

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Added tests to format value classes #1041

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16 changes: 16 additions & 0 deletions play-json/shared/src/test/scala/play/api/libs/json/JsonExtensionSpec.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -115,6 +115,8 @@ object CustomApply {

case class Optional(props: Option[String])

case class UserId(id: Long) extends AnyVal

class JsonExtensionSpec extends AnyWordSpec with Matchers {
"JsonExtension" should {
"create a reads[User]" in {
Expand Down Expand Up @@ -749,5 +751,19 @@ class JsonExtensionSpec extends AnyWordSpec with Matchers {
formatter.reads(Json.obj("props" -> JsNull)).mustEqual(JsSuccess(Optional(None)))
formatter.reads(Json.obj("props" -> Some("foo"))).mustEqual(JsSuccess(Optional(Some("foo"))))
}
"format value classes" in {
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Suggested change
"format value classes" in {
"format value classes" in {

implicit val userIdFmt: Format[UserId] = Json.format[UserId]
val userId = UserId(12345)
val serialized = Json.stringify(Json.toJson(userId))
serialized.mustEqual("""{"id":12345}""")
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Suggested change
serialized.mustEqual("""{"id":12345}""")
serialized.mustEqual("""{"id":12345}""")

Json.fromJson[UserId](Json.parse(serialized)).mustEqual(JsSuccess(userId))
}
"format value classes with value format" in {
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Suggested change
"format value classes with value format" in {
"format value classes with value format" in {

implicit val userIdFmt: Format[UserId] = Json.valueFormat[UserId]
val userId = UserId(12345)
val serialized = Json.stringify(Json.toJson(userId))
serialized.mustEqual("""12345""")
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Suggested change
serialized.mustEqual("""12345""")
serialized.mustEqual("""12345""")

Json.fromJson[UserId](Json.parse(serialized)).mustEqual(JsSuccess(userId))
}
}
}
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