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package kotlinx.serialization.json
import com.google.gson.*
import kotlinx.serialization.*
import org.junit.Test
import kotlin.test.*
class GsonCompatibilityTest {
@Serializable
data class Box(val d: Double, val f: Float)
@Test
fun testNaN() {
checkCompatibility(Box(Double.NaN, 1.0f))
checkCompatibility(Box(1.0, Float.NaN))
checkCompatibility(Box(Double.NaN, Float.NaN))
}
@Test
fun testInfinity() {
checkCompatibility(Box(Double.POSITIVE_INFINITY, 1.0f))
checkCompatibility(Box(1.0, Float.POSITIVE_INFINITY))
checkCompatibility(Box(Double.NEGATIVE_INFINITY, Float.NEGATIVE_INFINITY))
}
@Test
fun testNumber() {
checkCompatibility(Box(23.9, 23.9f))
}
private fun checkCompatibility(box: Box) {
checkCompatibility(box, Gson(), Json)
checkCompatibility(box, GsonBuilder().serializeSpecialFloatingPointValues().create(), Json { allowSpecialFloatingPointValues = true })
}
private fun checkCompatibility(box: Box, gson: Gson, json: Json) {
val jsonResult = resultOrNull { json.encodeToString(box) }
val gsonResult = resultOrNull { gson.toJson(box) }
assertEquals(gsonResult, jsonResult)
if (jsonResult != null && gsonResult != null) {
val jsonDeserialized: Box = json.decodeFromString(jsonResult)
val gsonDeserialized: Box = gson.fromJson(gsonResult, Box::class.java)
assertEquals(gsonDeserialized, jsonDeserialized)
}
}
private fun resultOrNull(function: () -> String): String? {
return try {
function()
} catch (t: Throwable) {
null
}
}
}
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