android: Add ability to add a range set to another

src/frontends/android/app/src/main/java/org/strongswan/android/utils/IPRangeSet.java

@@ -84,6 +84,21 @@ public class IPRangeSet implements Iterable<IPRange>
 		}
 	}
 
+	/**
+	 * Add all ranges from the given set.
+	 */
+	public void add(IPRangeSet ranges)
+	{
+		if (ranges == this)
+		{
+			return;
+		}
+		for (IPRange range : ranges.mRanges)
+		{
+			add(range);
+		}
+	}
+
 	/**
 	 * Add all ranges from the given collection to this set.
 	 */

src/frontends/android/app/src/test/java/org/strongswan/android/test/IPRangeSetTest.java

@@ -142,6 +142,33 @@ public class IPRangeSetTest
 					  new IPRange("255.255.255.255/32"));
 	}
 
+	@Test
+	public void testAddSet() throws UnknownHostException
+	{
+		IPRangeSet set = new IPRangeSet();
+		IPRangeSet other = new IPRangeSet();
+		other.add(new IPRange("192.168.1.0/24"));
+		other.add(new IPRange("10.0.1.0/24"));
+		other.add(new IPRange("255.255.255.255/32"));
+		set.add(other);
+		assertEquals("size", 3, set.size());
+		assertSubnets(set, new IPRange("10.0.1.0/24"), new IPRange("192.168.1.0/24"),
+					  new IPRange("255.255.255.255/32"));
+	}
+
+	@Test
+	public void testAddSetIdent() throws UnknownHostException
+	{
+		IPRangeSet set = new IPRangeSet();
+		set.add(new IPRange("192.168.1.0/24"));
+		set.add(new IPRange("10.0.1.0/24"));
+		set.add(new IPRange("255.255.255.255/32"));
+		set.add(set);
+		assertEquals("size", 3, set.size());
+		assertSubnets(set, new IPRange("10.0.1.0/24"), new IPRange("192.168.1.0/24"),
+					  new IPRange("255.255.255.255/32"));
+	}
+
 	@Test
 	public void testRemoveNothing() throws UnknownHostException
 	{