Add more create methods

Author: patrickfav

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

@@ -153,6 +153,21 @@ public static Bytes from(byte[]... moreArrays) {
         return wrap(Util.concat(moreArrays));
     }
 
+    /**
+     * Creates a new instance from given array of byte arrays
+     *
+     * @param moreBytes must not be null
+     * @return new instance
+     */
+    public static Bytes from(Bytes... moreBytes) {
+        Objects.requireNonNull(moreBytes, "bytes most not be null");
+        byte[][] bytes = new byte[moreBytes.length][];
+        for (int i = 0; i < moreBytes.length; i++) {
+            bytes[i] = moreBytes[i].array();
+        }
+        return from(bytes);
+    }
+
     /**
      * Creates a new instance from given collections. This will create a lot of auto-unboxing events,
      * so use with care with bigger lists.
@@ -275,7 +290,7 @@ public static Bytes from(InputStream stream) {
      * @param utf8String to get the internal byte array from
      * @return new instance
      */
-    public static Bytes from(String utf8String) {
+    public static Bytes from(CharSequence utf8String) {
         return from(utf8String, StandardCharsets.UTF_8);
     }
 
@@ -286,7 +301,7 @@ public static Bytes from(String utf8String) {
      * @param form       to normalize, usually you want {@link java.text.Normalizer.Form#NFKD} for compatibility
      * @return new instance
      */
-    public static Bytes from(String utf8String, Normalizer.Form form) {
+    public static Bytes from(CharSequence utf8String, Normalizer.Form form) {
         return from(Normalizer.normalize(utf8String, form), StandardCharsets.UTF_8);
     }
 
@@ -297,8 +312,8 @@ public static Bytes from(String utf8String, Normalizer.Form form) {
      * @param charset used to decode the string
      * @return new instance
      */
-    public static Bytes from(String string, Charset charset) {
-        return wrap(string.getBytes(charset));
+    public static Bytes from(CharSequence string, Charset charset) {
+        return wrap(string.toString().getBytes(charset));
     }
 
     /**

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

@@ -27,6 +27,7 @@
 import java.nio.ByteBuffer;
 import java.nio.charset.Charset;
 import java.nio.charset.StandardCharsets;
+import java.text.Normalizer;
 import java.util.Arrays;
 import java.util.BitSet;
 import java.util.LinkedList;
@@ -148,14 +149,22 @@ private void checkByteBuffer(byte[] array) {
     @Test
     public void fromString() throws Exception {
         checkString("", StandardCharsets.UTF_8);
+        checkString(" ", StandardCharsets.UTF_8);
+        checkString("\t", StandardCharsets.UTF_8);
         checkString("a", StandardCharsets.UTF_8);
+        checkString("12345678abcdefjkl", StandardCharsets.UTF_8);
         checkString("asdghasdu72Ahdans", StandardCharsets.UTF_8);
         checkString("asdghasdu72Ahdans", StandardCharsets.ISO_8859_1);
         checkString("7asdh#ö01^^`´dµ@€", StandardCharsets.UTF_8);
         checkString("7asdh#ö01^^`´dµ@€", StandardCharsets.US_ASCII);
         checkString("7asdh#ö01^^`´dµ@€", StandardCharsets.ISO_8859_1);
     }
 
+    @Test
+    public void fromMultipleBytes() throws Exception {
+        assertArrayEquals(new byte[]{0x01, 0x02, 0x03}, Bytes.from(Bytes.from((byte) 0x01), Bytes.from((byte) 0x02), Bytes.from((byte) 0x03)).array());
+    }
+
     private void checkString(String string, Charset charset) {
         Bytes b = Bytes.from(string, charset);
         assertArrayEquals(string.getBytes(charset), b.array());
@@ -165,6 +174,9 @@ private void checkString(String string, Charset charset) {
             Bytes bUtf8 = Bytes.from(string);
             assertArrayEquals(string.getBytes(StandardCharsets.UTF_8), bUtf8.array());
             assertEquals(new String(string.getBytes(StandardCharsets.UTF_8), StandardCharsets.UTF_8), bUtf8.encodeUtf8());
+        } else {
+            Bytes bNormalized = Bytes.from(string, Normalizer.Form.NFKD);
+            assertArrayEquals(Normalizer.normalize(string, Normalizer.Form.NFKD).getBytes(charset), bNormalized.array());
         }
     }