add the ability to register for roster events before logging in (SMACK-156)

git-svn-id: http://svn.igniterealtime.org/svn/repos/smack/trunk@11826 b35dd754-fafc-0310-a699-88a17e54d16e

test-unit/org/jivesoftware/smack/RosterOfflineTest.java

@@ -0,0 +1,92 @@
+package org.jivesoftware.smack;
+
+import static org.junit.Assert.*;
+
+import java.util.Collection;
+import java.util.Iterator;
+
+import org.jivesoftware.smack.Roster.SubscriptionMode;
+import org.jivesoftware.smack.packet.Presence;
+import org.junit.Before;
+import org.junit.Test;
+
+/**
+ * Tests the behavior of the roster if the connection is not authenticated yet.
+ * 
+ * @author Henning Staib
+ */
+public class RosterOfflineTest {
+
+    Connection connection;
+
+    Roster roster;
+
+    @Before
+    public void setup() {
+        this.connection = new XMPPConnection("localhost");
+        assertFalse(connection.isConnected());
+
+        roster = connection.getRoster();
+        assertNotNull(roster);
+    }
+
+    @Test
+    public void shouldThrowNoExceptionOnGetterMethods() {
+        // all getter methods should work
+        assertFalse(roster.contains("test"));
+
+        Collection<RosterEntry> entries = roster.getEntries();
+        assertTrue(entries.size() == 0);
+
+        assertNull(roster.getEntry("test"));
+
+        assertEquals(0, roster.getEntryCount());
+
+        assertNull(roster.getGroup("test"));
+
+        assertEquals(0, roster.getGroupCount());
+
+        Collection<RosterGroup> groups = roster.getGroups();
+        assertEquals(0, groups.size());
+
+        Presence presence = roster.getPresence("test");
+        assertEquals(Presence.Type.unavailable, presence.getType());
+
+        Presence presenceResource = roster.getPresenceResource("test");
+        assertEquals(Presence.Type.unavailable, presenceResource.getType());
+
+        Iterator<Presence> iterator = roster.getPresences("test");
+        assertTrue(iterator.hasNext());
+        assertEquals(Presence.Type.unavailable, iterator.next().getType());
+        assertFalse(iterator.hasNext());
+
+        assertEquals(0, roster.getUnfiledEntries().size());
+
+        assertEquals(0, roster.getUnfiledEntryCount());
+
+        roster.setSubscriptionMode(SubscriptionMode.accept_all);
+        assertEquals(SubscriptionMode.accept_all, roster.getSubscriptionMode());
+
+    }
+
+    @Test(expected = IllegalStateException.class)
+    public void shouldThrowExceptionOnCreateEntry() throws Exception {
+        roster.createEntry("test", "test", null);
+    }
+
+    @Test(expected = IllegalStateException.class)
+    public void shouldThrowExceptionOnCreateGroup() throws Exception {
+        roster.createGroup("test");
+    }
+
+    @Test(expected = IllegalStateException.class)
+    public void shouldThrowExceptionOnReload() throws Exception {
+        roster.reload();
+    }
+
+    @Test(expected = IllegalStateException.class)
+    public void shouldThrowExceptionRemoveEntry() throws Exception {
+        roster.removeEntry(null);
+    }
+
+}