diff --git a/snark-ktor/src/main/kotlin/space/kscience/snark/ktor/WebInterface.kt b/snark-ktor/src/main/kotlin/space/kscience/snark/ktor/WebInterface.kt
index 3e181f0..ccdf32a 100644
--- a/snark-ktor/src/main/kotlin/space/kscience/snark/ktor/WebInterface.kt
+++ b/snark-ktor/src/main/kotlin/space/kscience/snark/ktor/WebInterface.kt
@@ -10,15 +10,9 @@ import io.ktor.server.request.*
 import io.ktor.server.response.*
 import kotlinx.html.*
 import io.ktor.server.routing.*
-import java.nio.file.Path
 import space.kscience.snark.storage.Directory
-import space.kscience.snark.storage.local.localStorage
-import kotlin.io.path.createTempDirectory
-import kotlin.io.path.isDirectory
-import kotlin.io.path.listDirectoryEntries
 import space.kscience.snark.storage.unzip.unzip
 import kotlin.io.createTempFile
-import kotlin.io.path.*
 import kotlin.io.writeBytes
 
 public interface DataHolder {
@@ -27,43 +21,6 @@ public interface DataHolder {
     public fun represent(relativePath: String = "/"): String
 }
 
-internal class LocalDataHolder: DataHolder {
-    private var source: Path? = null
-    private var response: String = ""
-
-    private fun getPath(relativePath: String) : Path {
-        return source!! / Path(relativePath.drop(1))
-    }
-    override fun init(relativePath: String): Directory {
-        if (source == null) {
-            source = createTempDirectory()
-        }
-        val path = getPath(relativePath)
-        path.createDirectories()
-        path.toFile().deleteRecursively()
-        path.createDirectory()
-        return localStorage(path)
-    }
-    private fun buildResponse(from: Path, cur: Path) {
-        for (entry in cur.listDirectoryEntries()) {
-            if (entry.isDirectory()) {
-                buildResponse(from, entry)
-            } else {
-                response += from.relativize(entry).toString() + "<br>"
-            }
-        }
-    }
-    override fun represent(relativePath: String) : String =
-        if (source == null) {
-            "No data was loaded!"
-        } else {
-            response = "List of files:<br>"
-            val path = getPath(relativePath)
-            buildResponse(path, path)
-            response
-        }
-}
-
 public class SNARKServer(private val dataHolder: DataHolder, private val port: Int): Runnable {
     private var relativePath = "/"
 
diff --git a/snark-ktor/src/test/kotlin/space/kscience/snark/ktor/testServer.kt b/snark-ktor/src/test/kotlin/space/kscience/snark/ktor/testServer.kt
index 6c4ee11..6a16f68 100644
--- a/snark-ktor/src/test/kotlin/space/kscience/snark/ktor/testServer.kt
+++ b/snark-ktor/src/test/kotlin/space/kscience/snark/ktor/testServer.kt
@@ -1,5 +1,50 @@
 package space.kscience.snark.ktor
 
+import space.kscience.snark.storage.Directory
+import space.kscience.snark.storage.local.localStorage
+import java.nio.file.Path
+import kotlin.io.path.*
+import kotlin.io.path.createTempDirectory
+import kotlin.io.path.isDirectory
+import kotlin.io.path.listDirectoryEntries
+
+private class LocalDataHolder: DataHolder {
+    private var source: Path? = null
+    private var response: String = ""
+
+    private fun getPath(relativePath: String) : Path {
+        return source!! / Path(relativePath.dropWhile{it == '/'})
+    }
+    override fun init(relativePath: String): Directory {
+        if (source == null) {
+            source = createTempDirectory()
+        }
+        val path = getPath(relativePath)
+        path.createDirectories()
+        path.toFile().deleteRecursively()
+        path.createDirectory()
+        return localStorage(path)
+    }
+    private fun buildResponse(from: Path, cur: Path) {
+        for (entry in cur.listDirectoryEntries()) {
+            if (entry.isDirectory()) {
+                buildResponse(from, entry)
+            } else {
+                response += from.relativize(entry).toString() + "<br>"
+            }
+        }
+    }
+    override fun represent(relativePath: String) : String =
+        if (source == null) {
+            "No data was loaded!"
+        } else {
+            response = "List of files:<br>"
+            val path = getPath(relativePath)
+            buildResponse(path, path)
+            response
+        }
+}
+
 fun main() {
     SNARKServer(LocalDataHolder(), 9090).run()
 }
\ No newline at end of file