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diff --git a/sandbox/dougsleite/implementation-guardian/src/test/java/org/apache/tuscany/sca/implementation/guardian/LCATestCase.java b/sandbox/dougsleite/implementation-guardian/src/test/java/org/apache/tuscany/sca/implementation/guardian/LCATestCase.java
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index 0000000000..3c5e6b1b19
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+++ b/sandbox/dougsleite/implementation-guardian/src/test/java/org/apache/tuscany/sca/implementation/guardian/LCATestCase.java
@@ -0,0 +1,115 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you 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.apache.tuscany.sca.implementation.guardian;
+
+import java.io.FileInputStream;
+import org.apache.tuscany.sca.implementation.guardian.common.ResolutionTreeUtils;
+import java.util.Collection;
+import java.util.LinkedList;
+import java.util.Map;
+import javax.xml.stream.XMLInputFactory;
+import javax.xml.stream.XMLStreamReader;
+import org.junit.Test;
+import org.apache.axiom.om.OMElement;
+import java.util.List;
+import junit.framework.Assert;
+import org.apache.tuscany.sca.implementation.guardian.xml.ResolutionTreesProcessor;
+import org.junit.Before;
+
+public class LCATestCase {
+
+    private ResolutionTreeUtils treeUtils;
+
+    @Before
+    public void init() throws Exception {
+        ResolutionTreesProcessor processor = new ResolutionTreesProcessor();
+
+        FileInputStream fileInputStream = new FileInputStream("src/main/resources/org/apache/" +
+                "tuscany/sca/implementation/guardian/lcaTest.xml");
+        XMLStreamReader reader = XMLInputFactory.newInstance().createXMLStreamReader(fileInputStream);
+
+
+        ResolutionTrees policy = processor.read(reader);
+        Map<String, OMElement> resolutionTrees = policy.getResolutionTreeElements();
+
+        List<OMElement> rootElements = getRootElements(resolutionTrees.values());
+
+        treeUtils = new ResolutionTreeUtils();
+        treeUtils.setRoot(rootElements.get(0));
+    }
+
+    @Test
+    public void testLCAEx2Ex2() throws Exception {
+        String lca = treeUtils.getLowestCommonAncestor("Exception2", "Exception2");
+        System.out.println("lca: " + lca);
+        Assert.assertEquals("Exception2", lca);
+    }
+
+    @Test
+    public void testLCAEx2Ex3() throws Exception {
+        String lca = treeUtils.getLowestCommonAncestor("Exception2", "Exception3");
+        Assert.assertEquals("Exception1", lca);
+    }
+
+    @Test
+    public void testLCAEx2Ex8() throws Exception {
+        String lca = treeUtils.getLowestCommonAncestor("Exception2", "Exception8");
+        Assert.assertEquals("Exception1", lca);
+    }
+
+    @Test
+    public void testLCAEx4Ex3() throws Exception {
+        String lca = treeUtils.getLowestCommonAncestor("Exception4", "Exception3");
+        Assert.assertEquals("Exception1", lca);
+    }
+
+    @Test
+    public void testLCAEx4Ex5() throws Exception {
+        String lca = treeUtils.getLowestCommonAncestor("Exception4", "Exception5");
+        Assert.assertEquals("Exception2", lca);
+    }
+
+    @Test
+    public void testLCAEx6Ex7() throws Exception {
+        String lca = treeUtils.getLowestCommonAncestor("Exception6", "Exception7");
+        Assert.assertEquals("Exception3", lca);
+    }
+
+    @Test
+    public void testLCAEx1Ex8() throws Exception {
+        String lca = treeUtils.getLowestCommonAncestor("Exception1", "Exception8");
+        Assert.assertEquals("Exception1", lca);
+    }
+
+    @Test
+    public void testLCAEx2Ex5() throws Exception {
+        String lca = treeUtils.getLowestCommonAncestor("Exception2", "Exception5");
+        Assert.assertEquals("Exception2", lca);
+    }
+
+    private List<OMElement> getRootElements(Collection<OMElement> resolutionTrees) {
+        List<OMElement> rootElements = new LinkedList<OMElement>();
+
+        for (OMElement resolutionTree : resolutionTrees) {
+            rootElements.add(resolutionTree.getFirstElement());
+        }
+
+        return rootElements;
+    }
+}