Added a plugin verifier test.

Attempting to solve a problem discovered by Silthus, but I need
more information.

ProtocolLib/src/main/java/com/comphenix/protocol/injector/PluginVerifier.java

@@ -5,7 +5,6 @@ import java.util.HashSet;
 import java.util.List;
 import java.util.Set;
 
-import org.bukkit.Bukkit;
 import org.bukkit.plugin.Plugin;
 import org.bukkit.plugin.PluginLoadOrder;
 
@@ -98,7 +97,7 @@ class PluginVerifier {
 	 * @return The retrieved plugin, or NULL if not found.
 	 */
 	private Plugin getPluginOrDefault(String pluginName) {
-		return Bukkit.getPluginManager().getPlugin(pluginName);
+		return dependency.getServer().getPluginManager().getPlugin(pluginName);
 	}
 	
 	/**

ProtocolLib/src/test/java/com/comphenix/protocol/injector/PluginVerifierTest.java

@@ -0,0 +1,89 @@
+package com.comphenix.protocol.injector;
+
+import static org.junit.Assert.*;
+
+import java.util.Arrays;
+import java.util.List;
+import static org.mockito.Matchers.anyString;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+import org.bukkit.Server;
+import org.bukkit.plugin.Plugin;
+import org.bukkit.plugin.PluginDescriptionFile;
+import org.bukkit.plugin.PluginLoadOrder;
+import org.bukkit.plugin.PluginManager;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.invocation.InvocationOnMock;
+import org.mockito.stubbing.Answer;
+import org.powermock.core.classloader.annotations.PrepareForTest;
+import com.comphenix.protocol.injector.PluginVerifier.VerificationResult;
+import com.google.common.base.Objects;
+import com.google.common.collect.Lists;
+
+// Damn final classes
+@RunWith(org.powermock.modules.junit4.PowerMockRunner.class)
+@PrepareForTest(PluginDescriptionFile.class)
+public class PluginVerifierTest {
+	@Test
+	public void testDependecies() {
+		List<Plugin> plugins = Lists.newArrayList();
+		Server server = mockServer(plugins);
+		
+		Plugin library = mockPlugin(server, "ProtocolLib", PluginLoadOrder.POSTWORLD);
+		Plugin skillPlugin = mockPlugin(server, "SkillPlugin", "RaidCraft-API", "RCPermissions", "RCConversations");
+		Plugin raidCraftAPI = mockPlugin(server, "RaidCraft-API", "WorldGuard", "WorldEdit");
+		Plugin conversations = mockPlugin(server, "RCConversations", "RaidCraft-API");
+		Plugin permissions = mockPlugin(server, "RCPermissions", "RaidCraft-API");
+		
+		// Add the plugins
+		plugins.addAll(Arrays.asList(library, skillPlugin, raidCraftAPI, conversations, permissions));
+		PluginVerifier verifier = new PluginVerifier(library);
+		
+		// Verify the root - it should have no dependencies on ProtocolLib
+		assertEquals(VerificationResult.NO_DEPEND, verifier.verify(skillPlugin));
+	}
+	
+	private Server mockServer(final List<Plugin> plugins) {
+		Server mockServer = mock(Server.class);
+		PluginManager manager = mock(PluginManager.class);
+
+		when(mockServer.getPluginManager()).thenReturn(manager);
+		when(manager.getPlugin(anyString())).thenAnswer(new Answer<Plugin>() {
+			@Override
+			public Plugin answer(InvocationOnMock invocation) throws Throwable {
+				String name = (String) invocation.getArguments()[0];
+				
+				for (Plugin plugin : plugins) {
+					if (Objects.equal(name, plugin.getName())) {
+						return plugin;
+					}
+				}
+				return null;
+			}
+		});
+		return mockServer;
+	}
+	
+	private Plugin mockPlugin(Server server, String name,String... depend) {
+		return mockPlugin(server, name, PluginLoadOrder.POSTWORLD, depend);
+	}
+	
+	private Plugin mockPlugin(Server server, String name, PluginLoadOrder order, String... depend) {
+		Plugin plugin = mock(Plugin.class);
+		PluginDescriptionFile file = mock(PluginDescriptionFile.class);
+		
+		when(plugin.getServer()).thenReturn(server);
+		when(plugin.getName()).thenReturn(name);
+		when(plugin.toString()).thenReturn(name);
+		when(plugin.getDescription()).thenReturn(file);
+	
+		// This is the difficult part
+		when(file.getLoad()).thenReturn(order);
+		when(file.getDepend()).thenReturn(Arrays.asList(depend));
+		when(file.getSoftDepend()).thenReturn(null);
+		return plugin;
+	}
+}