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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.Json
import kotlinx.serialization.modules.*
import kotlinx.serialization.modules.plus
import kotlinx.serialization.test.assertStringFormAndRestored
import kotlinx.serialization.test.isJs
import kotlin.test.*
class PolymorphismWithAnyTest {
@Serializable
data class MyPolyData(val data: Map<String, @Polymorphic Any>)
@Serializable
data class MyPolyDataWithPolyBase(
val data: Map<String, @Polymorphic Any>,
@Polymorphic val polyBase: PolyBase
)
// KClass.toString() on JS prints simple name, not FQ one
@Suppress("NAME_SHADOWING")
private fun checkNotRegisteredMessage(className: String, scopeName: String, exception: SerializationException) {
val className = className.substringAfterLast('.')
val scopeName = scopeName.substringAfterLast('.')
val expectedText =
"Class '$className' is not registered for polymorphic serialization in the scope of '$scopeName'"
assertTrue(exception.message!!.startsWith(expectedText),
"Found $exception, but expected to start with: $expectedText")
}
@Test
fun testFailWithoutModulesWithCustomClass() {
checkNotRegisteredMessage(
"kotlinx.serialization.IntData", "kotlin.Any",
assertFailsWith<SerializationException>("not registered") {
Json.encodeToString(
MyPolyData.serializer(),
MyPolyData(mapOf("a" to IntData(42)))
)
}
)
}
@Test
fun testWithModules() {
val json = Json {
serializersModule = SerializersModule { polymorphic(Any::class) { subclass(IntData.serializer()) } }
}
assertStringFormAndRestored(
expected = """{"data":{"a":{"type":"kotlinx.serialization.IntData","intV":42}}}""",
original = MyPolyData(mapOf("a" to IntData(42))),
serializer = MyPolyData.serializer(),
format = json
)
}
/**
* This test should fail because PolyDerived registered in the scope of PolyBase, not kotlin.Any
*/
@Test
fun testFailWithModulesNotInAnyScope() {
val json = Json { serializersModule = BaseAndDerivedModule }
checkNotRegisteredMessage(
"kotlinx.serialization.PolyDerived", "kotlin.Any",
assertFailsWith<SerializationException> {
json.encodeToString(
MyPolyData.serializer(),
MyPolyData(mapOf("a" to PolyDerived("foo")))
)
}
)
}
private val baseAndDerivedModuleAtAny = SerializersModule {
polymorphic(Any::class) {
subclass(PolyDerived.serializer())
}
}
@Test
fun testRebindModules() {
val json = Json { serializersModule = baseAndDerivedModuleAtAny }
assertStringFormAndRestored(
expected = """{"data":{"a":{"type":"kotlinx.serialization.PolyDerived","id":1,"s":"foo"}}}""",
original = MyPolyData(mapOf("a" to PolyDerived("foo"))),
serializer = MyPolyData.serializer(),
format = json
)
}
/**
* This test should fail because PolyDerived registered in the scope of kotlin.Any, not PolyBase
*/
@Test
fun testFailWithModulesNotInParticularScope() {
val json = Json { serializersModule = baseAndDerivedModuleAtAny }
checkNotRegisteredMessage(
"kotlinx.serialization.PolyDerived", "kotlinx.serialization.PolyBase",
assertFailsWith {
json.encodeToString(
MyPolyDataWithPolyBase.serializer(),
MyPolyDataWithPolyBase(
mapOf("a" to PolyDerived("foo")),
PolyDerived("foo")
)
)
}
)
}
@Test
fun testBindModules() {
val json = Json { serializersModule = (baseAndDerivedModuleAtAny + BaseAndDerivedModule) }
assertStringFormAndRestored(
expected = """{"data":{"a":{"type":"kotlinx.serialization.PolyDerived","id":1,"s":"foo"}},
|"polyBase":{"type":"kotlinx.serialization.PolyDerived","id":1,"s":"foo"}}""".trimMargin().lines().joinToString(
""
),
original = MyPolyDataWithPolyBase(
mapOf("a" to PolyDerived("foo")),
PolyDerived("foo")
),
serializer = MyPolyDataWithPolyBase.serializer(),
format = json
)
}
}
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