exclude variation of the sun.nio.cs.ext.COMPOUND_TEXT_Encorder charset name when testing stream availability and skipping.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/io/trunk@1535374 13f79535-47bb-0310-9956-ffa450edef68

Author: Brent Worden

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

@@ -92,7 +92,7 @@ private void testBufferedRead(final String testString, final String charsetName)
     public void testBufferedRead_AvailableCharset() throws IOException {
         for (final String csName : Charset.availableCharsets().keySet()) {
             // prevent java.lang.UnsupportedOperationException at sun.nio.cs.ext.ISO2022_CN.newEncoder.
-            if (Charset.forName(csName).canEncode() && ! "COMPOUND_TEXT".equalsIgnoreCase(csName)) {
+            if (isAvailabilityTestableForCharset(csName)) {
                 testBufferedRead(TEST_STRING, csName);
             }
         }
@@ -426,10 +426,14 @@ public void testAvailable() throws Exception {
 //            at org.apache.commons.io.input.CharSequenceInputStreamTest.testAvailableRead(CharSequenceInputStreamTest.java:412)
 //            at org.apache.commons.io.input.CharSequenceInputStreamTest.testAvailable(CharSequenceInputStreamTest.java:424)
 
-            if (Charset.forName(csName).canEncode() && ! "COMPOUND_TEXT".equalsIgnoreCase(csName) && ! "x-COMPOUND_TEXT".equalsIgnoreCase(csName)) {
+            if (isAvailabilityTestableForCharset(csName)) {
                 testAvailableSkip(csName);
                 testAvailableRead(csName);
             }
         }
     }
+
+    private boolean isAvailabilityTestableForCharset(final String csName) {
+        return Charset.forName(csName).canEncode() && ! "COMPOUND_TEXT".equalsIgnoreCase(csName) && ! "x-COMPOUND_TEXT".equalsIgnoreCase(csName);
+    }
 }