Fix #234

mattbdean · Mar 11, 2018 · 19944e6 · 19944e6
1 parent 1c09228
commit 19944e6
Show file tree

Hide file tree

Showing 2 changed files with 34 additions and 1 deletion.
diff --git a/lib/src/main/kotlin/net/dean/jraw/databind/RedditModelAdapterFactory.kt b/lib/src/main/kotlin/net/dean/jraw/databind/RedditModelAdapterFactory.kt
@@ -209,7 +209,29 @@ class RedditModelAdapterFactory(
         }
 
         override fun toJson(writer: JsonWriter, value: Listing<Any>?) {
-            TODO("not implemented")
+            if (value == null) {
+                writer.nullValue()
+                return
+            }
+
+            writer.beginObject()
+            writer.name("kind")
+            writer.value(KindConstants.LISTING)
+            writer.name("data")
+            writeListing(writer, value)
+            writer.endObject()
+        }
+
+        private fun writeListing(writer: JsonWriter, value: Listing<Any>) {
+            writer.beginObject()
+            writer.name("after")
+            writer.value(value.nextName)
+            writer.name("children")
+            writer.beginArray()
+            for (child in value.children)
+                childrenDelegate.toJson(writer, child)
+            writer.endArray()
+            writer.endObject()
         }
 
         companion object {

diff --git a/lib/src/test/kotlin/net/dean/jraw/test/unit/RedditModelAdapterFactoryTest.kt b/lib/src/test/kotlin/net/dean/jraw/test/unit/RedditModelAdapterFactoryTest.kt
@@ -53,6 +53,17 @@ class RedditModelAdapterFactoryTest : Spek({
         val adapter = envelopedAdapter<Listing<NonEnvelopedChild>>(listingType(NonEnvelopedChild::class))
         adapter.fromJson(nonEnvelopedListingJson).should.equal(nonEnvelopedListingValue)
     }
+
+    it("should be able to serialize/deserialize a Listing without loss of meaning") {
+        val adapter = envelopedAdapter<Listing<Child>>(listingType(Child::class))
+        // Parse the JSON from our in-code string
+        val round1 = adapter.fromJson(listingJson)
+
+        // Serialize and immediately deserialize the object to see if it stayed the same
+        val round2 = adapter.fromJson(adapter.toJson(round1))
+
+        round1.should.equal(round2)
+    }
 })
 
 @Language("JSON") private val childJson = """{ "kind": "child", "data": { "a": "foo" } }"""