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/*
* Copyright 2019 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package kotlinx.serialization.features
import kotlinx.serialization.*
import kotlinx.serialization.json.Json
import kotlin.test.Test
import kotlin.test.assertEquals
@Serializable
data class WithNull(@SerialName("value") val nullable: String? = null) {
@Serializer(forClass = WithNull::class)
companion object : KSerializer<WithNull> {
override fun serialize(encoder: Encoder, obj: WithNull) {
val elemOutput = encoder.beginStructure(descriptor)
if (obj.nullable != null) elemOutput.encodeStringElement(descriptor, 0, obj.nullable)
elemOutput.endStructure(descriptor)
}
}
}
class PartiallyCustomSerializerTest {
@Test
fun partiallyCustom() {
assertEquals("""{"value":"foo"}""", Json.stringify(WithNull.serializer(), WithNull("foo")))
assertEquals("""{}""", Json.stringify(WithNull.serializer(), WithNull()))
}
}
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