Added test for non-serializable params

Author: Mr3zee

krpc/krpc-test/src/jvmMain/kotlin/kotlinx/rpc/krpc/test/KrpcTestService.kt

@@ -9,6 +9,8 @@ import kotlinx.coroutines.flow.SharedFlow
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.rpc.RemoteService
 import kotlinx.rpc.annotations.Rpc
+import kotlinx.serialization.Contextual
+import java.time.LocalDate
 
 @Suppress("detekt.TooManyFunctions")
 @Rpc
@@ -28,6 +30,8 @@ interface KrpcTestService : RemoteService {
     suspend fun nullable(arg1: String?): TestClass?
     suspend fun variance(arg2: TestList<in TestClass>, arg3: TestList2<*>): TestList<out TestClass>?
 
+    suspend fun nonSerializableClass(localDate: @Contextual LocalDate): LocalDate
+
     suspend fun incomingStreamSyncCollect(arg1: Flow<String>): Int
     suspend fun incomingStreamAsyncCollect(arg1: Flow<String>): Int
     suspend fun outgoingStream(): Flow<String>

krpc/krpc-test/src/jvmMain/kotlin/kotlinx/rpc/krpc/test/KrpcTestServiceBackend.kt

@@ -7,6 +7,7 @@ package kotlinx.rpc.krpc.test
 import kotlinx.coroutines.*
 import kotlinx.coroutines.flow.*
 import kotlinx.serialization.Serializable
+import java.time.LocalDate
 import kotlin.coroutines.CoroutineContext
 import kotlin.coroutines.resumeWithException
 import kotlin.test.assertEquals
@@ -79,6 +80,10 @@ class KrpcTestServiceBackend(override val coroutineContext: CoroutineContext) :
         return TestList(3)
     }
 
+    override suspend fun nonSerializableClass(localDate: LocalDate): LocalDate {
+        return localDate.plusDays(1)
+    }
+
     override suspend fun incomingStreamSyncCollect(arg1: Flow<String>): Int {
         return arg1.count()
     }

krpc/krpc-test/src/jvmMain/kotlin/kotlinx/rpc/krpc/test/KrpcTransportTestBase.kt

@@ -18,16 +18,44 @@ import kotlinx.rpc.krpc.server.KrpcServer
 import kotlinx.rpc.krpc.streamScoped
 import kotlinx.rpc.registerService
 import kotlinx.rpc.withService
+import kotlinx.serialization.KSerializer
+import kotlinx.serialization.descriptors.PrimitiveKind
+import kotlinx.serialization.descriptors.PrimitiveSerialDescriptor
+import kotlinx.serialization.descriptors.SerialDescriptor
+import kotlinx.serialization.encoding.Decoder
+import kotlinx.serialization.encoding.Encoder
+import kotlinx.serialization.modules.SerializersModule
 import org.junit.Assert.assertEquals
 import org.junit.Rule
 import org.junit.rules.Timeout
+import java.time.LocalDate
+import java.time.format.DateTimeFormatter
 import java.util.concurrent.Semaphore
 import java.util.concurrent.TimeUnit
 import java.util.concurrent.atomic.AtomicBoolean
 import kotlin.coroutines.cancellation.CancellationException
 import kotlin.test.*
 
+private object LocalDateSerializer : KSerializer<LocalDate> {
+    override val descriptor: SerialDescriptor = PrimitiveSerialDescriptor("LocalDate", PrimitiveKind.STRING)
+
+    override fun serialize(
+        encoder: Encoder,
+        value: LocalDate,
+    ) {
+        encoder.encodeString(value.format(DateTimeFormatter.ISO_DATE))
+    }
+
+    override fun deserialize(decoder: Decoder): LocalDate {
+        return LocalDate.parse(decoder.decodeString(), DateTimeFormatter.ISO_DATE)
+    }
+}
+
 abstract class KrpcTransportTestBase {
+    protected val serializersModule = SerializersModule {
+        contextual(LocalDate::class) { LocalDateSerializer }
+    }
+
     protected abstract val serializationConfig: KrpcSerialFormatConfiguration.() -> Unit
 
     private val serverConfig by lazy {
@@ -112,6 +140,15 @@ abstract class KrpcTransportTestBase {
         }
     }
 
+    @Test
+    fun nonSerializableParameter() {
+        runBlocking {
+            val localDate = LocalDate.of(2001, 8, 23)
+            val result = client.nonSerializableClass(localDate)
+            assertEquals(localDate.plusDays(1), result)
+        }
+    }
+
     @Test
     fun doubleGenericReturnType() {
         val result = runBlocking { client.doubleGenericReturnType() }

krpc/krpc-test/src/jvmTest/kotlin/kotlinx/rpc/krpc/test/LocalTransportTest.kt

@@ -23,22 +23,28 @@ abstract class LocalTransportTest : KrpcTransportTestBase() {
 
 class JsonLocalTransportTest : LocalTransportTest() {
     override val serializationConfig: KrpcSerialFormatConfiguration.() -> Unit = {
-        json()
+        json {
+            serializersModule = this@JsonLocalTransportTest.serializersModule
+        }
     }
 }
 
 class CborLocalTransportTest : LocalTransportTest() {
     @OptIn(ExperimentalSerializationApi::class)
     override val serializationConfig: KrpcSerialFormatConfiguration.() -> Unit = {
-        cbor()
+        cbor {
+            serializersModule = this@CborLocalTransportTest.serializersModule
+        }
     }
 }
 
 @Suppress("detekt.EmptyFunctionBlock")
 class ProtoBufLocalTransportTest : LocalTransportTest() {
     @OptIn(ExperimentalSerializationApi::class)
     override val serializationConfig: KrpcSerialFormatConfiguration.() -> Unit = {
-        protobuf()
+        protobuf {
+            serializersModule = this@ProtoBufLocalTransportTest.serializersModule
+        }
     }
 
     // 'null' is not supported in ProtoBuf