1 files changed, 14 insertions, 0 deletions
diff --git a/src/test/scala/xyz/driver/core/JsonTest.scala b/src/test/scala/xyz/driver/core/JsonTest.scala
index 7e8dba2..b845a44 100644
--- a/src/test/scala/xyz/driver/core/JsonTest.scala
+++ b/src/test/scala/xyz/driver/core/JsonTest.scala
@@ -13,6 +13,7 @@ import spray.json._
 import xyz.driver.core.TestTypes.CustomGADT
 import xyz.driver.core.domain.{Email, PhoneNumber}
 import xyz.driver.core.json.enumeratum.HasJsonFormat
+import xyz.driver.core.tagging.Taggable
 import xyz.driver.core.time.TimeOfDay
 
 import scala.collection.immutable.IndexedSeq
@@ -31,6 +32,19 @@ class JsonTest extends FlatSpec with Matchers {
     parsedId should be(referenceId)
   }
 
+  "Json format for @@" should "read and write correct JSON" in {
+    trait Irrelevant
+    val reference = Id[JsonTest]("SomeID").tagged[Irrelevant]
+
+    val format = json.taggedFormat[Id[JsonTest], Irrelevant]
+
+    val writtenJson = format.write(reference)
+    writtenJson shouldBe JsString("SomeID")
+
+    val parsedId: Id[JsonTest] @@ Irrelevant = format.read(writtenJson)
+    parsedId shouldBe reference
+  }
+
   "Json format for Name" should "read and write correct JSON" in {
 
     val referenceName = Name[String]("Homer")