commonTest.kotlinx.serialization.features.ObjectSerialization.kt Maven / Gradle / Ivy

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Kotlin multiplatform serialization runtime library

There is a newer version: 1.7.3

/*
 * 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.Json
import kotlinx.serialization.json.JsonTestBase
import kotlinx.serialization.modules.*
import kotlin.test.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
        )
    }
}