Fixed wrong type in log message about generated test file

Author: Damtev

utbot-core/src/main/kotlin/org/utbot/common/FileUtil.kt

@@ -224,13 +224,16 @@ object FileUtil {
     }
 
     // https://stackoverflow.com/a/68822715
-    fun byteCountToDisplaySize(bytes: Long): String =
-        when {
-            bytes >= 1 shl 30 -> "%.1f GB".format(bytes / (1 shl 30))
-            bytes >= 1 shl 20 -> "%.1f MB".format(bytes / (1 shl 20))
-            bytes >= 1 shl 10 -> "%.0f kB".format(bytes / (1 shl 10))
-            else -> "$bytes bytes"
+    fun byteCountToDisplaySize(bytes: Long): String {
+        val bytesInDouble = bytes.toDouble()
+
+        return when {
+            bytesInDouble >= 1 shl 30 -> "%.1f GB".format(bytesInDouble / (1 shl 30))
+            bytesInDouble >= 1 shl 20 -> "%.1f MB".format(bytesInDouble / (1 shl 20))
+            bytesInDouble >= 1 shl 10 -> "%.0f kB".format(bytesInDouble / (1 shl 10))
+            else -> "$bytesInDouble bytes"
         }
+    }
 }
 
 /**