Add boolean constructor

Author: patrickfav

CHANGELOG

@@ -3,6 +3,7 @@
 ## v0.4.6
 
 * add appending with strings
+* add boolean constructor
 
 ## v0.4.5
 

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

@@ -238,6 +238,19 @@ public static Bytes from(byte firstByte, byte... moreBytes) {
         return wrap(Util.concatVararg(firstByte, moreBytes));
     }
 
+    /**
+     * Creates a new instance from given boolean.
+     * This will create a new single array element array instance using the convention that false is zero.
+     * E.g. Creates array <code>new byte[] {1}</code> if booleanValue is true and <code>new byte[] {0}</code> if
+     * booleanValue is false.
+     *
+     * @param booleanValue to convert (false is zero, true is one)
+     * @return new instance
+     */
+    public static Bytes from(boolean booleanValue) {
+        return wrap(new byte[]{booleanValue ? (byte) 1 : 0});
+    }
+
     /**
      * Creates a new instance from given unsigned 2 byte char.
      *

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

@@ -128,6 +128,12 @@ private void checkBigInteger(byte[] array) {
         assertEquals(bigInteger, Bytes.from(bigInteger).toBigInteger());
     }
 
+    @Test
+    public void fromBoolean() throws Exception {
+        assertArrayEquals(new byte[]{(byte) 1}, Bytes.from(true).array());
+        assertArrayEquals(new byte[]{(byte) 0}, Bytes.from(false).array());
+    }
+
     @Test
     public void fromByte() throws Exception {
         byte test = 0x4E;