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diff --git a/org.argeo.server.jcr/src/main/java/org/argeo/jcr/unit/AbstractJcrTestCase.java b/org.argeo.server.jcr/src/main/java/org/argeo/jcr/unit/AbstractJcrTestCase.java
new file mode 100644
index 000000000..530605eac
--- /dev/null
+++ b/org.argeo.server.jcr/src/main/java/org/argeo/jcr/unit/AbstractJcrTestCase.java
@@ -0,0 +1,89 @@
+/*
+ * Copyright (C) 2007-2012 Argeo GmbH
+ *
+ * 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.argeo.jcr.unit;
+
+import java.io.File;
+
+import javax.jcr.Repository;
+import javax.jcr.Session;
+import javax.jcr.SimpleCredentials;
+
+import junit.framework.TestCase;
+
+import org.apache.commons.io.FileUtils;
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.argeo.ArgeoException;
+
+public abstract class AbstractJcrTestCase extends TestCase {
+	private final static Log log = LogFactory.getLog(AbstractJcrTestCase.class);
+
+	private Repository repository;
+	private Session session = null;
+
+	protected abstract File getRepositoryFile() throws Exception;
+
+	protected abstract Repository createRepository() throws Exception;
+
+	@Override
+	protected void setUp() throws Exception {
+		File homeDir = getHomeDir();
+		FileUtils.deleteDirectory(homeDir);
+		repository = createRepository();
+	}
+
+	protected File getHomeDir() {
+		File homeDir = new File(System.getProperty("java.io.tmpdir"),
+				AbstractJcrTestCase.class.getSimpleName() + "-"
+						+ System.getProperty("user.name"));
+		return homeDir;
+	}
+
+	@Override
+	protected void tearDown() throws Exception {
+		if (session != null) {
+			session.logout();
+			if (log.isDebugEnabled())
+				log.debug("Logout session");
+		}
+	}
+
+	protected Session session() {
+		if (session == null) {
+			try {
+				if (log.isDebugEnabled())
+					log.debug("Login session");
+				session = getRepository().login(
+						new SimpleCredentials("demo", "demo".toCharArray()));
+			} catch (Exception e) {
+				throw new ArgeoException("Cannot login to repository", e);
+			}
+		}
+		return session;
+	}
+
+	protected Repository getRepository() {
+		return repository;
+	}
+
+	/**
+	 * enables children class to set an existing repository in case it is not
+	 * deleted on startup, to test migration by instance
+	 */
+	protected void setRepository(Repository repository) {
+		this.repository = repository;
+	}
+}