Document another broken test method

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/io/trunk@1470356 13f79535-47bb-0310-9956-ffa450edef68

Author: sebbASF

src/test/java/org/apache/commons/io/input/CharSequenceInputStreamTest.java

@@ -239,6 +239,7 @@ public void testLargeSingleByteRead_UTF8() throws IOException {
         testSingleByteRead(LARGE_TEST_STRING, "UTF-8");
     }
 
+    // This test is broken for charsets that don't create a single byte for each char
     private void testMarkReset(final String csName) throws Exception {
         final InputStream r = new CharSequenceInputStream("test", csName);
         try {
@@ -259,7 +260,7 @@ private void testMarkReset(final String csName) throws Exception {
     }
 
     @Test
-    @Ignore
+    @Ignore // Test broken for charsets that create multiple bytes for a single char
     public void testMarkReset_RequiredCharsets() throws Exception {
         for (final String csName : getRequiredCharsetNames()) {
             testMarkReset(csName);