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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
import org.junit.*
// Serializable data class
@Serializable
data class Container(val data: Data)
class SerializationMethodInvocationOrderTest {
@Test
fun testRec() {
val out = Out()
out.encode(Container::class.serializer(), Container(Data("s1", 42)))
out.done()
val inp = Inp()
inp.decode(Container::class.serializer())
inp.done()
}
companion object {
fun fail(msg: String): Nothing = throw RuntimeException(msg)
fun checkContainerDesc(desc: SerialDescriptor) {
if (desc.name != "kotlinx.serialization.Container") fail("checkContainerDesc name $desc")
if (desc.getElementName(0) != "data") fail("checkContainerDesc $desc")
}
fun checkDataDesc(desc: SerialDescriptor) {
if (desc.name != "kotlinx.serialization.Data") fail("checkDataDesc name $desc")
if (desc.getElementName(0) != "value1") fail("checkDataDesc.0 $desc")
if (desc.getElementName(1) != "value2") fail("checkDataDesc.1 $desc")
}
}
class Out : ElementValueEncoder() {
var step = 0
override fun beginStructure(desc: SerialDescriptor, vararg typeParams: KSerializer<*>): CompositeEncoder {
when(step) {
1 -> { checkContainerDesc(desc); step++; return this }
4 -> { checkDataDesc(desc); step++; return this }
}
fail("@$step: beginStructure($desc)")
}
override fun encodeElement(desc: SerialDescriptor, index: Int): Boolean {
when (step) {
2 -> { checkContainerDesc(desc); if (index == 0) { step++; return true } }
5 -> { checkDataDesc(desc); if (index == 0) { step++; return true } }
7 -> { checkDataDesc(desc); if (index == 1) { step++; return true } }
}
fail("@$step: encodeElement($desc, $index)")
}
override fun <T : Any?> encodeSerializableValue(serializer: SerializationStrategy<T>, value: T) {
when (step) {
0, 3 -> { step++; serializer.serialize(this, value); return }
}
fail("@$step: encodeSerializableValue($value)")
}
override fun encodeString(value: String) {
when (step) {
6 -> if (value == "s1") { step++; return }
}
fail("@$step: encodeString($value)")
}
override fun encodeInt(value: Int) {
when (step) {
8 -> if (value == 42) { step++; return }
}
fail("@$step: decodeInt($value)")
}
override fun endStructure(desc: SerialDescriptor) {
when(step) {
9 -> { checkDataDesc(desc); step++; return }
10 -> { checkContainerDesc(desc); step++; return }
}
fail("@$step: endStructure($desc)")
}
fun done() {
if (step != 11) fail("@$step: OUT FAIL")
}
}
class Inp : ElementValueDecoder() {
var step = 0
override fun beginStructure(desc: SerialDescriptor, vararg typeParams: KSerializer<*>): CompositeDecoder {
when(step) {
1 -> { checkContainerDesc(desc); step++; return this }
4 -> { checkDataDesc(desc); step++; return this }
}
fail("@$step: beginStructure($desc)")
}
override fun decodeElementIndex(desc: SerialDescriptor): Int {
when (step) {
2 -> { checkContainerDesc(desc); step++; return 0 }
5 -> { checkDataDesc(desc); step++; return 0 }
7 -> { checkDataDesc(desc); step++; return 1 }
9 -> { checkDataDesc(desc); step++; return -1 }
11 -> { checkContainerDesc(desc); step++; return -1 }
}
fail("@$step: decodeElementIndex($desc)")
}
override fun <T : Any?> decodeSerializableValue(deserializer: DeserializationStrategy<T>): T {
when (step) {
0, 3 -> { step++; return deserializer.deserialize(this) }
}
fail("@$step: decodeSerializableValue()")
}
override fun decodeString(): String {
when (step) {
6 -> { step++; return "s1" }
}
fail("@$step: decodeString()")
}
override fun decodeInt(): Int {
when (step) {
8 -> { step++; return 42 }
}
fail("@$step: decodeInt()")
}
override fun endStructure(desc: SerialDescriptor) {
when(step) {
10 -> { checkDataDesc(desc); step++; return }
12 -> { checkContainerDesc(desc); step++; return }
}
fail("@$step: endStructure($desc)")
}
fun done() {
if (step != 13) fail("@$step: INP FAIL")
}
}
}
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