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package kotlinx.serialization.hocon
import kotlinx.serialization.*
import org.junit.*
class HoconPolymorphismTest {
@Serializable
sealed class Sealed(val intField: Int) {
@Serializable
@SerialName("object")
object ObjectChild : Sealed(0)
@Serializable
@SerialName("data_class")
data class DataClassChild(val name: String) : Sealed(1)
@Serializable
@SerialName("type_child")
data class TypeChild(val type: String) : Sealed(2)
@Serializable
@SerialName("annotated_type_child")
data class AnnotatedTypeChild(@SerialName("my_type") val type: String) : Sealed(3)
}
@Serializable
data class SealedCollectionContainer(val sealed: Collection<Sealed>)
@Serializable
data class SealedMapContainer(val sealed: Map<String, Sealed>)
@Serializable
data class CompositeClass(var sealed: Sealed)
private val arrayHocon = Hocon {
useArrayPolymorphism = true
}
private val objectHocon = Hocon {
useArrayPolymorphism = false
}
@Test
fun testArrayDataClass() {
arrayHocon.assertStringFormAndRestored(
expected = "sealed: [ data_class, { name = testDataClass, intField = 1 } ]",
original = CompositeClass(Sealed.DataClassChild("testDataClass")),
serializer = CompositeClass.serializer(),
)
}
@Test
fun testArrayObject() {
arrayHocon.assertStringFormAndRestored(
expected = "sealed: [ object, {} ]",
original = CompositeClass(Sealed.ObjectChild),
serializer = CompositeClass.serializer(),
)
}
@Test
fun testObject() {
objectHocon.assertStringFormAndRestored(
expected = "type = object",
original = Sealed.ObjectChild,
serializer = Sealed.serializer(),
)
}
@Test
fun testNestedDataClass() {
objectHocon.assertStringFormAndRestored(
expected = "sealed { type = data_class, name = testDataClass, intField = 1 }",
original = CompositeClass(Sealed.DataClassChild("testDataClass")),
serializer = CompositeClass.serializer(),
)
}
@Test
fun testDataClassDecode() {
objectHocon.assertStringFormAndRestored(
expected = "type = data_class, name = testDataClass, intField = 1",
original = Sealed.DataClassChild("testDataClass"),
serializer = Sealed.serializer(),
)
}
@Test
fun testChangedDiscriminator() {
val hocon = Hocon(objectHocon) {
classDiscriminator = "key"
}
hocon.assertStringFormAndRestored(
expected = "type = override, key = type_child, intField = 2",
original = Sealed.TypeChild(type = "override"),
serializer = Sealed.serializer(),
)
}
@Test
fun testChangedTypePropertyName() {
objectHocon.assertStringFormAndRestored(
expected = "type = annotated_type_child, my_type = override, intField = 3",
original = Sealed.AnnotatedTypeChild(type = "override"),
serializer = Sealed.serializer(),
)
}
@Test
fun testCollectionContainer() {
objectHocon.assertStringFormAndRestored(
expected = """
sealed = [
{ type = annotated_type_child, my_type = override, intField = 3 }
{ type = object }
{ type = data_class, name = testDataClass, intField = 1 }
]
""".trimIndent(),
original = SealedCollectionContainer(
listOf(
Sealed.AnnotatedTypeChild(type = "override"),
Sealed.ObjectChild,
Sealed.DataClassChild(name = "testDataClass"),
)
),
serializer = SealedCollectionContainer.serializer(),
)
}
@Test
fun testMapContainer() {
objectHocon.assertStringFormAndRestored(
expected = """
sealed = {
"annotated_type_child" = { type = annotated_type_child, my_type = override, intField = 3 }
"object" = { type = object }
"data_class" = { type = data_class, name = testDataClass, intField = 1 }
}
""".trimIndent(),
original = SealedMapContainer(
mapOf(
"annotated_type_child" to Sealed.AnnotatedTypeChild(type = "override"),
"object" to Sealed.ObjectChild,
"data_class" to Sealed.DataClassChild(name = "testDataClass"),
)
),
serializer = SealedMapContainer.serializer(),
)
}
}
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