From 9763309a3e3cfaf1e58c9cedc708cbc08c33da3c Mon Sep 17 00:00:00 2001
From: Mark Junker <m.junker@fubar-dev.de>
Date: Wed, 22 May 2019 00:46:20 +0200
Subject: [PATCH] Fixed unit test

---
 .../FtpCommandCollectorTests.cs                       | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/test/FubarDev.FtpServer.Tests/FtpCommandCollectorTests.cs b/test/FubarDev.FtpServer.Tests/FtpCommandCollectorTests.cs
index 8704e04a..573900bd 100644
--- a/test/FubarDev.FtpServer.Tests/FtpCommandCollectorTests.cs
+++ b/test/FubarDev.FtpServer.Tests/FtpCommandCollectorTests.cs
@@ -178,7 +178,7 @@ public void TestWithCyrillicTextWithWindows1251Encoding()
             Assert.True(collector.IsEmpty);
         }
 
-        private static IEnumerable<ReadOnlyMemory<byte>> EscapeIAC(byte[] data)
+        private static IEnumerable<ReadOnlyMemory<byte>> EscapeTelnetCodes(byte[] data)
         {
             var startIndex = 0;
             for (var i = 0; i != data.Length; ++i)
@@ -189,6 +189,13 @@ private static IEnumerable<ReadOnlyMemory<byte>> EscapeIAC(byte[] data)
                     yield return new ReadOnlyMemory<byte>(data, startIndex, length);
                     startIndex = i;
                 }
+                else if (data[i] == 0xF2)
+                {
+                    var length = i - startIndex;
+                    yield return new ReadOnlyMemory<byte>(data, startIndex, length);
+                    yield return new ReadOnlyMemory<byte>(new byte[] { 0xFF });
+                    startIndex = i;
+                }
             }
 
             var remaining = data.Length - startIndex;
@@ -201,7 +208,7 @@ private static IEnumerable<ReadOnlyMemory<byte>> EscapeIAC(byte[] data)
         private static IEnumerable<FtpCommand> Collect(FtpCommandCollector collector, string data)
         {
             var temp = collector.Encoding.GetBytes(data);
-            foreach (var escapedDataMemory in EscapeIAC(temp))
+            foreach (var escapedDataMemory in EscapeTelnetCodes(temp))
             {
                 var collected = collector.Collect(escapedDataMemory.Span);
                 foreach (var command in collected)