1 files changed, 63 insertions, 0 deletions
diff --git a/formats/json-tests/commonTest/src/kotlinx/serialization/json/polymorphic/JsonPropertyPolymorphicTest.kt b/formats/json-tests/commonTest/src/kotlinx/serialization/json/polymorphic/JsonPropertyPolymorphicTest.kt
new file mode 100644
index 00000000..e2e10e24
--- /dev/null
+++ b/formats/json-tests/commonTest/src/kotlinx/serialization/json/polymorphic/JsonPropertyPolymorphicTest.kt
@@ -0,0 +1,63 @@
+/*
+ * Copyright 2017-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
+ */
+
+package kotlinx.serialization.json.polymorphic
+
+import kotlinx.serialization.PolymorphicSerializer
+import kotlinx.serialization.json.JsonTestBase
+import kotlin.test.Test
+import kotlin.test.assertEquals
+
+class JsonPropertyPolymorphicTest : JsonTestBase() {
+
+    @Test
+    fun testPolymorphicProperties() = assertJsonFormAndRestored(
+        InnerBox.serializer(),
+        InnerBox(InnerImpl(42, "foo")),
+        """{"base":{"type":"kotlinx.serialization.json.polymorphic.InnerImpl",""" +
+                """"field":42,"str":"foo","nullable":null}}""",
+        polymorphicRelaxedJson)
+
+    @Test
+    fun testFlatPolymorphic() = parametrizedTest { jsonTestingMode ->
+        val base: InnerBase = InnerImpl(42, "foo")
+        val string = polymorphicRelaxedJson.encodeToString(PolymorphicSerializer(InnerBase::class), base, jsonTestingMode)
+        assertEquals("""{"type":"kotlinx.serialization.json.polymorphic.InnerImpl",""" +
+                """"field":42,"str":"foo","nullable":null}""", string)
+        assertEquals(base, polymorphicRelaxedJson.decodeFromString(PolymorphicSerializer(InnerBase::class), string, jsonTestingMode))
+    }
+
+    @Test
+    fun testNestedPolymorphicProperties() = assertJsonFormAndRestored(
+        OuterBox.serializer(),
+        OuterBox(OuterImpl(InnerImpl(42), InnerImpl2(42)), InnerImpl2(239)),
+        """{"outerBase":{""" +
+                """"type":"kotlinx.serialization.json.polymorphic.OuterImpl",""" +
+                """"base":{"type":"kotlinx.serialization.json.polymorphic.InnerImpl","field":42,"str":"default","nullable":null},""" +
+                """"base2":{"type":"kotlinx.serialization.json.polymorphic.InnerImpl2","field":42}},""" +
+                """"innerBase":{"type":"kotlinx.serialization.json.polymorphic.InnerImpl2","field":239}}""",
+        polymorphicRelaxedJson)
+
+    @Test
+    fun testPolymorphicNullableProperties() = assertJsonFormAndRestored(
+        InnerNullableBox.serializer(),
+        InnerNullableBox(InnerImpl(42, "foo")),
+        """{"base":{"type":"kotlinx.serialization.json.polymorphic.InnerImpl",""" +
+                """"field":42,"str":"foo","nullable":null}}""",
+        polymorphicRelaxedJson)
+
+    @Test
+    fun testPolymorphicNullablePropertiesWithNull() =
+        assertJsonFormAndRestored(InnerNullableBox.serializer(), InnerNullableBox(null), """{"base":null}""", polymorphicJson)
+
+    @Test
+    fun testNestedPolymorphicNullableProperties() = assertJsonFormAndRestored(
+        OuterNullableBox.serializer(),
+        OuterNullableBox(OuterNullableImpl(InnerImpl(42), null), InnerImpl2(239)),
+        """{"outerBase":{""" +
+                """"type":"kotlinx.serialization.json.polymorphic.OuterNullableImpl",""" +
+                """"base":{"type":"kotlinx.serialization.json.polymorphic.InnerImpl","field":42,"str":"default","nullable":null},"base2":null},""" +
+                """"innerBase":{"type":"kotlinx.serialization.json.polymorphic.InnerImpl2","field":239}}""",
+        polymorphicRelaxedJson)
+}