From dbc6d2b2ed6f1a3789728e99a93b9185d16c5def Mon Sep 17 00:00:00 2001
From: Darius Maitia <darius@zettascale.tech>
Date: Thu, 19 Sep 2024 17:50:24 +0200
Subject: [PATCH] fix(scouting): error when providing config (#223)

---
 .../commonMain/kotlin/io/zenoh/jni/JNIScout.kt  |  4 ++--
 .../src/commonTest/kotlin/io/zenoh/ScoutTest.kt | 17 ++++++-----------
 2 files changed, 8 insertions(+), 13 deletions(-)

diff --git a/zenoh-kotlin/src/commonMain/kotlin/io/zenoh/jni/JNIScout.kt b/zenoh-kotlin/src/commonMain/kotlin/io/zenoh/jni/JNIScout.kt
index f697c9c8a..c89684507 100644
--- a/zenoh-kotlin/src/commonMain/kotlin/io/zenoh/jni/JNIScout.kt
+++ b/zenoh-kotlin/src/commonMain/kotlin/io/zenoh/jni/JNIScout.kt
@@ -40,7 +40,7 @@ internal class JNIScout(private val ptr: Long) {
                 callback.run(Hello(WhatAmI.fromInt(whatAmI2), ZenohID(id), locators))
             }
             val binaryWhatAmI: Int = whatAmI.map { it.value }.reduce { acc, it -> acc or it }
-            val ptr = scoutViaJNI(binaryWhatAmI, scoutCallback, config?.jniConfig?.ptr)
+            val ptr = scoutViaJNI(binaryWhatAmI, scoutCallback, config?.jniConfig?.ptr ?: 0)
             Scout(receiver, JNIScout(ptr))
         }
 
@@ -48,7 +48,7 @@ internal class JNIScout(private val ptr: Long) {
         private external fun scoutViaJNI(
             whatAmI: Int,
             callback: JNIScoutCallback,
-            configPtr: Long?,
+            configPtr: Long,
         ): Long
 
         @Throws(Exception::class)
diff --git a/zenoh-kotlin/src/commonTest/kotlin/io/zenoh/ScoutTest.kt b/zenoh-kotlin/src/commonTest/kotlin/io/zenoh/ScoutTest.kt
index 622204719..cba34d9c9 100644
--- a/zenoh-kotlin/src/commonTest/kotlin/io/zenoh/ScoutTest.kt
+++ b/zenoh-kotlin/src/commonTest/kotlin/io/zenoh/ScoutTest.kt
@@ -29,17 +29,7 @@ class ScoutTest {
 
     @Test
     fun `scouting detects session test`() {
-
-        val config = Config.fromJson("""
-        {
-            "mode": "peer",
-            "connect": {
-                "endpoints": ["tcp/localhost:7450"]
-            },
-        }
-        """.trimIndent()).getOrThrow()
-
-        val session = Session.open(config).getOrThrow()
+        val session = Session.open(Config.default()).getOrThrow()
 
         var hello: Hello? = null
         Zenoh.scout(callback = {
@@ -51,4 +41,9 @@ class ScoutTest {
         assertNotNull(hello)
         session.close()
     }
+
+    @Test
+    fun `scouting loads config successfully test`() {
+        Zenoh.scout({}, config = Config.default()).getOrThrow()
+    }
 }
\ No newline at end of file