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/*
* Copyright 2017-2020 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.encoding.*
import kotlinx.serialization.json.Json
import kotlin.test.Test
import kotlin.test.assertEquals
@Serializable(WithNull.Companion::class)
data class WithNull(@SerialName("value") val nullable: String? = null) {
@Serializer(forClass = WithNull::class)
companion object : KSerializer<WithNull> {
override fun serialize(encoder: Encoder, value: WithNull) {
val elemOutput = encoder.beginStructure(descriptor)
if (value.nullable != null) elemOutput.encodeStringElement(descriptor, 0, value.nullable)
elemOutput.endStructure(descriptor)
}
}
}
class PartiallyCustomSerializerTest {
@Test
fun partiallyCustom() {
assertEquals("""{"value":"foo"}""", Json.encodeToString(WithNull.serializer(), WithNull("foo")))
assertEquals("""{}""", Json.encodeToString(WithNull.serializer(), WithNull()))
}
}
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