diff --git a/pom.xml b/pom.xml
index 034a115ad..86849a538 100644
--- a/pom.xml
+++ b/pom.xml
@@ -68,6 +68,13 @@
       <type>jar</type>
       <scope>compile</scope>
     </dependency>
+
+    <dependency>
+      <groupId>org.mockito</groupId>
+      <artifactId>mockito-core</artifactId>
+      <version>1.9.0-rc1</version>
+      <scope>test</scope>
+    </dependency>
   </dependencies>
 
   <build>
diff --git a/src/test/java/com/sk89q/wepif/DinnerPermsResolverTest.java b/src/test/java/com/sk89q/wepif/DinnerPermsResolverTest.java
new file mode 100644
index 000000000..2620715e5
--- /dev/null
+++ b/src/test/java/com/sk89q/wepif/DinnerPermsResolverTest.java
@@ -0,0 +1,68 @@
+package com.sk89q.wepif;
+
+import org.bukkit.Server;
+import org.bukkit.plugin.PluginManager;
+import org.junit.Before;
+import org.junit.Test;
+import static org.junit.Assert.*;
+
+import static org.mockito.Mockito.*;
+
+public class DinnerPermsResolverTest {
+    private DinnerPermsResolver resolver;
+
+    @Before
+    public void setUp() {
+        Server server = mock(Server.class);
+        when(server.getPluginManager()).thenReturn(mock(PluginManager.class));
+        resolver = new DinnerPermsResolver(server);
+    }
+    
+    @Test
+    public void testBasicResolving() {
+        final TestOfflinePermissible permissible = new TestOfflinePermissible();
+        permissible.setPermission("testperm.test1", true);
+        assertTrue(resolver.hasPermission(permissible, "testperm.test1"));
+        assertFalse(resolver.hasPermission(permissible, "testperm.somethingelse"));
+        assertFalse(resolver.hasPermission(permissible, "testperm.test1.anything"));
+        assertFalse(resolver.hasPermission(permissible, "completely.unrelated"));
+        permissible.clearPermissions();
+    }
+    
+    @Test
+    public void testBasicWildcardResolution() {
+        final TestOfflinePermissible permissible = new TestOfflinePermissible();
+        permissible.setPermission("commandbook.spawnmob.*", true);
+        assertTrue(resolver.hasPermission(permissible, "commandbook.spawnmob.pig"));
+        assertTrue(resolver.hasPermission(permissible, "commandbook.spawnmob.spider"));
+        assertTrue(resolver.hasPermission(permissible, "commandbook.spawnmob.spider.skeleton"));
+        permissible.clearPermissions();
+    }
+    
+    @Test
+    public void testNegatingNodes() {
+        final TestOfflinePermissible permissible = new TestOfflinePermissible();
+        permissible.setPermission("commandbook.*", true);
+        permissible.setPermission("commandbook.cuteasianboys", false);
+        permissible.setPermission("commandbook.warp.*", false);
+        permissible.setPermission("commandbook.warp.create", true);
+        
+        assertTrue(resolver.hasPermission(permissible, "commandbook.motd"));
+        assertFalse(resolver.hasPermission(permissible, "commandbook.cuteasianboys"));
+        assertFalse(resolver.hasPermission(permissible, "commandbook.warp.remove"));
+        assertTrue(resolver.hasPermission(permissible, "commandbook.warp.create"));
+        
+        permissible.clearPermissions();
+    }
+    
+    
+    @Test
+    public void testInGroup() {
+        final TestOfflinePermissible permissible = new TestOfflinePermissible();
+        permissible.setPermission("group.a", true);
+        permissible.setPermission("group.b", true);
+        assertTrue(resolver.inGroup(permissible, "a"));
+        assertTrue(resolver.inGroup(permissible, "b"));
+        assertFalse(resolver.inGroup(permissible, "c"));
+    }
+}
diff --git a/src/test/java/com/sk89q/wepif/TestOfflinePermissible.java b/src/test/java/com/sk89q/wepif/TestOfflinePermissible.java
new file mode 100644
index 000000000..2f833b9d8
--- /dev/null
+++ b/src/test/java/com/sk89q/wepif/TestOfflinePermissible.java
@@ -0,0 +1,134 @@
+package com.sk89q.wepif;
+
+import org.bukkit.OfflinePlayer;
+import org.bukkit.entity.Player;
+import org.bukkit.permissions.*;
+import org.bukkit.plugin.Plugin;
+
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Map;
+import java.util.Set;
+
+public class TestOfflinePermissible implements OfflinePlayer, Permissible {
+    private boolean op;
+    
+    private final Map<String, Boolean> assignedPermissions = new HashMap<String, Boolean>();
+
+    public boolean isOp() {
+        return op;
+    }
+
+    public void setOp(boolean b) {
+        this.op = b;
+    }
+
+    public boolean isPermissionSet(String s) {
+        return assignedPermissions.containsKey(s.toLowerCase());
+    }
+
+    public boolean isPermissionSet(Permission permission) {
+        return isPermissionSet(permission.getName());
+    }
+
+    public boolean hasPermission(String s) {
+        if (isPermissionSet(s)) {
+            return assignedPermissions.get(s.toLowerCase());
+        }
+        return false;
+    }
+
+    public boolean hasPermission(Permission permission) {
+        return hasPermission(permission.getName());
+    }
+
+    public PermissionAttachment addAttachment(Plugin plugin, String s, boolean b) {
+        throw new UnsupportedOperationException("Not supported yet.");
+    }
+
+    public PermissionAttachment addAttachment(Plugin plugin) {
+        throw new UnsupportedOperationException("Not supported yet.");
+    }
+
+    public PermissionAttachment addAttachment(Plugin plugin, String s, boolean b, int i) {
+        throw new UnsupportedOperationException("Not supported yet.");
+    }
+
+    public PermissionAttachment addAttachment(Plugin plugin, int i) {
+        throw new UnsupportedOperationException("Not supported yet.");
+    }
+
+    public void removeAttachment(PermissionAttachment permissionAttachment) {
+        throw new UnsupportedOperationException("Not supported yet.");
+    }
+
+    public void recalculatePermissions() {
+        throw new UnsupportedOperationException("Not supported yet.");
+    }
+
+    public Set<PermissionAttachmentInfo> getEffectivePermissions() {
+        Set<PermissionAttachmentInfo> ret = new HashSet<PermissionAttachmentInfo>();
+        for (Map.Entry<String, Boolean> entry : assignedPermissions.entrySet()) {
+            ret.add(new PermissionAttachmentInfo(this, entry.getKey(), null, entry.getValue()));
+        }
+        return ret;
+    }
+    
+    public void setPermission(String permission, boolean value) {
+        assignedPermissions.put(permission.toLowerCase(), value);
+    }
+    
+    public void unsetPermission(String permission) {
+        assignedPermissions.remove(permission.toLowerCase());
+    }
+
+    public void clearPermissions() {
+        assignedPermissions.clear();
+    }
+    
+    // -- Unneeded OfflinePlayer methods
+
+    public boolean isOnline() {
+        return false;
+    }
+
+    public String getName() {
+        return "Tester";
+    }
+
+    public boolean isBanned() {
+        throw new UnsupportedOperationException("Not supported yet.");
+    }
+
+    public void setBanned(boolean b) {
+        throw new UnsupportedOperationException("Not supported yet.");
+    }
+
+    public boolean isWhitelisted() {
+        throw new UnsupportedOperationException("Not supported yet.");
+    }
+
+    public void setWhitelisted(boolean b) {
+        throw new UnsupportedOperationException("Not supported yet.");
+    }
+
+    public Player getPlayer() {
+        throw new UnsupportedOperationException("Not supported yet.");
+    }
+
+    public long getFirstPlayed() {
+        throw new UnsupportedOperationException("Not supported yet.");
+    }
+
+    public long getLastPlayed() {
+        throw new UnsupportedOperationException("Not supported yet.");
+    }
+
+    public boolean hasPlayedBefore() {
+        throw new UnsupportedOperationException("Not supported yet.");
+    }
+
+    public Map<String, Object> serialize() {
+        throw new UnsupportedOperationException("Not supported yet.");
+    }
+}