diff --git a/openid-connect-server/src/main/java/org/mitre/openid/connect/service/impl/DefaultBlacklistedSiteService.java b/openid-connect-server/src/main/java/org/mitre/openid/connect/service/impl/DefaultBlacklistedSiteService.java
index cea94da0a..02b405b66 100644
--- a/openid-connect-server/src/main/java/org/mitre/openid/connect/service/impl/DefaultBlacklistedSiteService.java
+++ b/openid-connect-server/src/main/java/org/mitre/openid/connect/service/impl/DefaultBlacklistedSiteService.java
@@ -41,6 +41,24 @@ public class DefaultBlacklistedSiteService implements BlacklistedSiteService {
 	@Autowired
 	private BlacklistedSiteRepository repository;
 
+	/**
+	 * Default Constructor
+	 */
+	public DefaultBlacklistedSiteService()
+	{
+		
+	}
+	
+	/**
+	 * Constructor for test harness.
+	 * 
+	 * @param repository
+	 */
+	public DefaultBlacklistedSiteService(BlacklistedSiteRepository repository)
+	{
+		this.repository = repository;
+	}
+	
 	/* (non-Javadoc)
 	 * @see org.mitre.openid.connect.service.BlacklistedSiteService#getAll()
 	 */
diff --git a/openid-connect-server/src/test/java/org/mitre/openid/connect/service/impl/TestDefaultBlacklistedSiteService.java b/openid-connect-server/src/test/java/org/mitre/openid/connect/service/impl/TestDefaultBlacklistedSiteService.java
new file mode 100644
index 000000000..822136335
--- /dev/null
+++ b/openid-connect-server/src/test/java/org/mitre/openid/connect/service/impl/TestDefaultBlacklistedSiteService.java
@@ -0,0 +1,92 @@
+/*******************************************************************************
+ * Copyright 2013 The MITRE Corporation 
+ *   and the MIT Kerberos and Internet Trust Consortium
+ * 
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ ******************************************************************************/
+package org.mitre.openid.connect.service.impl;
+
+import static org.junit.Assert.*;
+
+import java.util.Set;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.mitre.openid.connect.model.BlacklistedSite;
+import org.mitre.openid.connect.repository.BlacklistedSiteRepository;
+import org.mockito.Mockito;
+import static org.mockito.Mockito.times;
+
+import com.google.common.collect.Sets;
+
+/**
+ * @author wkim
+ *
+ */
+public class TestDefaultBlacklistedSiteService {
+
+	private BlacklistedSite site1;
+	private BlacklistedSite site2;
+	
+	private String uri1 = "black1";
+	private String uri2 = "black2";
+	private String uri3 = "not-black";
+	
+	private BlacklistedSiteRepository mockRepository;
+	
+	private DefaultBlacklistedSiteService service;
+	
+	/**
+	 * @throws java.lang.Exception
+	 */
+	@Before
+	public void prepare() throws Exception {
+		
+		site1 = new BlacklistedSite();
+		site2 = new BlacklistedSite();
+		
+		site1.setUri(uri1);
+		site2.setUri(uri2);
+		
+		Set<BlacklistedSite> blackListedSitesSet = Sets.newHashSet(site1, site2);
+		
+		mockRepository = Mockito.mock(BlacklistedSiteRepository.class);
+		Mockito.when(mockRepository.getAll()).thenReturn(blackListedSitesSet);
+		
+		service = new DefaultBlacklistedSiteService(mockRepository);
+	}
+
+	/**
+	 * Test finding blacklisted sites from the repository.
+	 */
+	@Test
+	public void isBlacklisted_yes() {
+		
+		assertTrue(service.isBlacklisted(uri1));
+		assertTrue(service.isBlacklisted(uri2));
+		
+		Mockito.verify(mockRepository, times(2)).getAll();
+	}
+	
+	/**
+	 * Tests for finding a site that is not blacklisted in the repository.
+	 */
+	@Test
+	public void isBlacklisted_no() {
+		
+		assertFalse(service.isBlacklisted(uri3));
+		
+		Mockito.verify(mockRepository).getAll();
+	}
+
+}