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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.json
import kotlinx.serialization.*
import kotlinx.serialization.json.internal.*
import kotlinx.serialization.modules.*
import kotlin.test.assertEquals
abstract class JsonTestBase {
protected val strict = Json(JsonConfiguration.Default)
protected val unquoted = Json { unquoted = true }
protected val nonStrict = Json { strictMode = false }
@ImplicitReflectionSerializer
internal inline fun <reified T : Any> Json.stringify(value: T, useStreaming: Boolean): String {
val serializer = context.getContextualOrDefault(T::class)
return stringify(serializer, value, useStreaming)
}
internal fun <T> Json.stringify(serializer: SerializationStrategy<T>, value: T, useStreaming: Boolean): String {
return if (useStreaming) {
stringify(serializer, value)
} else {
val tree = writeJson(value, serializer)
// kotlinx.serialization/issues/277
stringify(JsonElementSerializer, tree)
}
}
@ImplicitReflectionSerializer
inline fun <reified T : Any> Json.stringify(list: List<T>, useStreaming: Boolean): String {
return if (useStreaming) {
// Overload to test public list extension
stringify(list)
} else {
stringify(context.getContextualOrDefault(T::class).list, list)
}
}
@ImplicitReflectionSerializer
inline fun <reified K : Any, reified V : Any> Json.stringify(map: Map<K, V>, useStreaming: Boolean): String {
return if (useStreaming) {
// Overload to test public map extension
stringify(map)
} else {
stringify((context.getContextualOrDefault(K::class) to context.getContextualOrDefault(V::class)).map, map)
}
}
@ImplicitReflectionSerializer
internal inline fun <reified T : Any> Json.parse(source: String, useStreaming: Boolean): T {
val deserializer = context.getContextualOrDefault(T::class)
return parse(deserializer, source, useStreaming)
}
internal fun <T> Json.parse(deserializer: DeserializationStrategy<T>, source: String, useStreaming: Boolean): T {
return if (useStreaming) {
parse(deserializer, source)
} else {
val parser = JsonReader(source)
val input = StreamingJsonInput(this, WriteMode.OBJ, parser)
val tree = input.decodeJson()
readJson(tree, deserializer)
}
}
@ImplicitReflectionSerializer
internal inline fun <reified T : Any> Json.parseList(content: String, useStreaming: Boolean): List<T> {
return if (useStreaming) {
// Overload to test public list extension
parseList(content)
} else {
parse(context.getContextualOrDefault(T::class).list, content, useStreaming)
}
}
@ImplicitReflectionSerializer
internal inline fun <reified K : Any, reified V : Any> Json.parseMap(
content: String,
useStreaming: Boolean
): Map<K, V> {
return if (useStreaming) {
// Overload to test public map extension
parseMap(content)
} else {
parse((context.getContextualOrDefault(K::class) to context.getContextualOrDefault(V::class)).map, content, useStreaming)
}
}
protected fun parametrizedTest(test: (Boolean) -> Unit) {
val streamingResult = kotlin.runCatching { test(true) }
val treeResult = kotlin.runCatching { test(false) }
processResults(streamingResult, treeResult)
}
private inner class DualFormat(
val json: Json,
val useStreaming: Boolean,
override val context: SerialModule = EmptyModule
) : StringFormat {
override fun <T> stringify(serializer: SerializationStrategy<T>, obj: T): String {
return json.stringify(serializer, obj, useStreaming)
}
override fun <T> parse(deserializer: DeserializationStrategy<T>, string: String): T {
return json.parse(deserializer, string, useStreaming)
}
}
protected fun parametrizedTest(json: Json, test: StringFormat.(StringFormat) -> Unit) {
val streamingResult = kotlin.runCatching { json.test(DualFormat(json, true)) }
val treeResult = kotlin.runCatching { json.test(DualFormat(json, false)) }
processResults(streamingResult, treeResult)
}
private fun processResults(streamingResult: Result<*>, treeResult: Result<*>) {
val results = listOf(streamingResult, treeResult)
results.forEachIndexed { index, result ->
if (result.isFailure)
throw Exception("Failed ${if (index == 0) "streaming" else "tree"} test", result.exceptionOrNull()!!)
}
assertEquals(streamingResult.getOrNull()!!, treeResult.getOrNull()!!)
}
internal fun <T: Any> parametrizedTest(serializer: KSerializer<T>, data: T, expected: String, json: Json = unquoted) {
parametrizedTest { useStreaming ->
val serialized = json.stringify(serializer, data, useStreaming)
assertEquals(expected, serialized)
val deserialized: T = json.parse(serializer, serialized, useStreaming)
assertEquals(data, deserialized)
}
}
}
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