Split test method in two.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/codec/trunk@1637840 13f79535-47bb-0310-9956-ffa450edef68

Author: garydgregory

src/test/java/org/apache/commons/codec/binary/HexTest.java

@@ -293,9 +293,13 @@ public void testEncodeDecodeRandom() throws DecoderException, EncoderException {
     }
 
     @Test
-    public void testEncodeEmpty() throws EncoderException {
+    public void testEncodeHexBytesEmpty() throws EncoderException {
         assertTrue(Arrays.equals(new char[0], Hex.encodeHex(new byte[0])));
         assertTrue(Arrays.equals(new byte[0], new Hex().encode(new byte[0])));
+    }
+
+    @Test
+    public void testEncodeStringEmpty() throws EncoderException {
         assertTrue(Arrays.equals(new char[0], (char[]) new Hex().encode("")));
     }