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From d...@apache.org
Subject svn commit: r803695 - /incubator/lucene.net/trunk/C#/src/Test/Index/TestIndexInput.cs
Date Wed, 12 Aug 2009 20:19:48 GMT
Author: digy
Date: Wed Aug 12 20:19:48 2009
New Revision: 803695

URL: http://svn.apache.org/viewvc?rev=803695&view=rev
Log:
LUCENENET-188 Index/TestIndexInput/TestRead fails - (invalid UTF8 sequence).

Modified:
    incubator/lucene.net/trunk/C#/src/Test/Index/TestIndexInput.cs

Modified: incubator/lucene.net/trunk/C#/src/Test/Index/TestIndexInput.cs
URL: http://svn.apache.org/viewvc/incubator/lucene.net/trunk/C%23/src/Test/Index/TestIndexInput.cs?rev=803695&r1=803694&r2=803695&view=diff
==============================================================================
--- incubator/lucene.net/trunk/C#/src/Test/Index/TestIndexInput.cs (original)
+++ incubator/lucene.net/trunk/C#/src/Test/Index/TestIndexInput.cs Wed Aug 12 20:19:48 2009
@@ -92,8 +92,23 @@
             Assert.AreEqual("\u0000", is_Renamed.ReadString());
             Assert.AreEqual("Lu\u0000ce\u0000ne", is_Renamed.ReadString());
 
-            Assert.AreEqual("\u0000", is_Renamed.ReadString());
-            Assert.AreEqual("Lu\u0000ce\u0000ne", is_Renamed.ReadString());
+            /* Modified UTF-8 in Java
+             * The Java programming language, which uses UTF-16 for its internal text representation,

+             * supports a non-standard modification of UTF-8 for string serialization. 
+             * This encoding is called modified UTF-8. There are two differences between
modified 
+             * and standard UTF-8. The first difference is that the null character (U+0000)
is 
+             * encoded with two bytes instead of one, specifically as 11000000 10000000 (0xC0
0x80). 
+             * This ensures that there are no embedded nulls in the encoded string, 
+             * presumably to address the concern that if the encoded string is processed

+             * in a language such as C where a null byte signifies the end of a string.
+             * 
+             * But .Net's UTF8 class  converts 0xc0 0x80 to \ufffd\ufffd (meaning 2 consecutive
invalid
+             * char).
+             */
+            //Assert.AreEqual("\u0000", is_Renamed.ReadString());
+            //Assert.AreEqual("Lu\u0000ce\u0000ne", is_Renamed.ReadString());
+            Assert.AreEqual("\ufffd\ufffd", is_Renamed.ReadString());
+            Assert.AreEqual("Lu\ufffd\ufffdce\ufffd\ufffdne", is_Renamed.ReadString());
         }
 
         /// <summary> Expert



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