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/*
* Copyright 2017-2019 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license.
*/
package kotlinx.serialization.features
import kotlinx.serialization.*
import kotlinx.serialization.json.*
import kotlinx.serialization.modules.*
import kotlinx.serialization.test.*
import kotlin.test.*
class ObjectSerializationTest : JsonTestBase() {
sealed class ApiResponse {
@Serializable
@SerialName("ApiError")
object Error : ApiResponse()
@Serializable
@SerialName("ApiResponse")
data class Response(val message: String) : ApiResponse()
}
@Serializable
data class ApiCarrier(@Polymorphic val response: ApiResponse)
val module = SerializersModule {
polymorphic(ApiResponse::class) {
subclass(ApiResponse.Error.serializer())
subclass(ApiResponse.Response.serializer())
}
}
val json = Json { serializersModule = module }
@Test
fun testSealedClassSerialization() {
val carrier1 = ApiCarrier(ApiResponse.Error)
val carrier2 = ApiCarrier(ApiResponse.Response("OK"))
assertJsonFormAndRestored(ApiCarrier.serializer(), carrier1, """{"response":{"type":"ApiError"}}""", json)
assertJsonFormAndRestored(
ApiCarrier.serializer(),
carrier2,
"""{"response":{"type":"ApiResponse","message":"OK"}}""",
json
)
}
@Test
fun testUnknownKeys() {
val string = """{"metadata":"foo"}"""
assertFailsWithMessage<SerializationException>("ignoreUnknownKeys") {
Json.decodeFromString(
ApiResponse.Error.serializer(),
string
)
}
val json = Json { ignoreUnknownKeys = true }
assertEquals(ApiResponse.Error, json.decodeFromString(ApiResponse.Error.serializer(), string))
}
}
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