Add more tests

Author: patrickfav

src/main/java/at/favre/lib/bytes/BytesTransformer.java

@@ -68,6 +68,7 @@ public byte[] transform(byte[] currentArray, boolean inPlace) {
 
             for (int i = 0; i < currentArray.length; i++) {
                 switch (mode) {
+                    default:
                     case OR:
                         out[i] = (byte) (currentArray[i] | secondArray[i]);
                         break;
@@ -77,8 +78,6 @@ public byte[] transform(byte[] currentArray, boolean inPlace) {
                     case XOR:
                         out[i] = (byte) (currentArray[i] ^ secondArray[i]);
                         break;
-                    default:
-                        throw new IllegalArgumentException("unknown bitwise transform mode " + mode);
                 }
             }
 
@@ -129,12 +128,11 @@ public byte[] transform(byte[] currentArray, boolean inPlace) {
             BigInteger bigInt = new BigInteger(currentArray);
 
             switch (type) {
+                default:
                 case LEFT_SHIFT:
                     return bigInt.shiftLeft(shiftCount).toByteArray();
                 case RIGHT_SHIFT:
                     return bigInt.shiftRight(shiftCount).toByteArray();
-                default:
-                    throw new IllegalArgumentException("unknown shift type " + type);
             }
         }
     }

src/main/java/at/favre/lib/bytes/BytesValidators.java

@@ -25,6 +25,10 @@
  * Util and easy access for {@link BytesValidators}
  */
 public class BytesValidators {
+
+    private BytesValidators() {
+    }
+
     /**
      * Checks the length of a byte array
      *

src/test/java/at/favre/lib/bytes/BytesTransformTest.java

@@ -261,6 +261,11 @@ public void bitSwitch() throws Exception {
         }
     }
 
+    @Test(expected = IllegalArgumentException.class)
+    public void bitSwitchOutOfBounds() throws Exception {
+        Bytes.from(4).switchBit(32, true);
+    }
+
     @Test
     public void transform() throws Exception {
         assertArrayEquals(example_bytes_two, Bytes.from(example_bytes_two).transform(new BytesTransformer() {