--- /dev/null
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ * VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.db.tests.api.support.undoRedoSupport;
+
+import java.util.Arrays;
+
+import org.junit.Test;
+import org.simantics.databoard.Bindings;
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.Session;
+import org.simantics.db.WriteGraph;
+import org.simantics.db.common.request.ReadRequest;
+import org.simantics.db.common.request.WriteRequest;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.service.UndoRedoSupport;
+import org.simantics.db.testing.base.ExistingDatabaseTest;
+import org.simantics.layer0.Layer0;
+import org.simantics.utils.DataContainer;
+
+/**
+ * Tests undo of two changes sets with values modified in multiple cluster change sets.
+ * The binary values will cause two cluster change sets per modification.
+ * (By the way the above-mentioned behavior will cause serious fragmentation in server
+ * because the size of cluster change sets are ridiculously small and server does not
+ * process cluster change sets but stores them as is. The payload is just about the same
+ * as the bookkeeping structures. TODO: fix the aforementioned fragmentation)
+ */
+public class UndoTest18 extends ExistingDatabaseTest {
+ private void initValue(byte[] value) {
+ for (int i=0; i<value.length; ++i)
+ value[i] = (byte)i;
+ }
+
+ @Test
+ public void testUndo1() throws Exception {
+
+ Session session = getSession();
+ final UndoRedoSupport support = session.getService(UndoRedoSupport.class);
+ final DataContainer<Resource> subject1 = new DataContainer<Resource>();
+ final DataContainer<Resource> subject2 = new DataContainer<Resource>();
+ final byte[] value10 = new byte[100000];
+ final byte[] value20 = new byte[100001];
+ final byte[] value11 = new byte[100002];
+ final byte[] value21 = new byte[100003];
+
+ try {
+ initValue(value10);
+ initValue(value11);
+ initValue(value20);
+ initValue(value21);
+ session.syncRequest(new WriteRequest() {
+ @Override
+ public void perform(WriteGraph graph) throws DatabaseException {
+ graph.markUndoPoint();
+ Layer0 b = Layer0.getInstance(graph);
+ Resource s1 = graph.newResource();
+ graph.claim(s1, b.InstanceOf, b.Entity);
+ graph.claimValue(s1, value10);
+ subject1.set(s1);
+ }
+ });
+ } catch (Throwable e) {
+ fail("Write transaction threw an unknown exception ", e);
+ }
+
+ try {
+ session.syncRequest(new WriteRequest() {
+ @Override
+ public void perform(WriteGraph graph) throws DatabaseException {
+ graph.markUndoPoint();
+ Layer0 b = Layer0.getInstance(graph);
+ Resource s2 = graph.newResource();
+ graph.claim(s2, b.InstanceOf, b.Entity);
+ graph.claimValue(s2, value20);
+ subject2.set(s2);
+ }
+ });
+ } catch (Throwable e) {
+ fail("Write transaction threw an unknown exception ", e);
+ }
+
+ try {
+ session.syncRequest(new ReadRequest() {
+ @Override
+ public void run(ReadGraph graph) throws DatabaseException {
+ Resource s1 = subject1.get();
+ byte[] t1 = graph.getValue(s1, Bindings.BYTE_ARRAY);
+ if (!Arrays.equals(t1, value10))
+ fail("Failed to verify value1.");
+ Resource s2 = subject2.get();
+ byte[] t2 = graph.getValue(s2, Bindings.BYTE_ARRAY);
+ if (!Arrays.equals(t2, value20))
+ fail("Failed to verify value2.");
+ }
+ });
+ } catch (Throwable e) {
+ fail("Read transaction threw an unexpected exception ", e);
+ }
+
+ try {
+ session.syncRequest(new WriteRequest() {
+ @Override
+ public void perform(WriteGraph graph) throws DatabaseException {
+ graph.markUndoPoint();
+ graph.newResource();
+ }
+ });
+ } catch (Throwable e) {
+ fail("Write transaction threw an unknown exception ", e);
+ }
+
+ try {
+ session.syncRequest(new WriteRequest() {
+ @Override
+ public void perform(WriteGraph graph) throws DatabaseException {
+ graph.markUndoPoint();
+ Layer0 b = Layer0.getInstance(graph);
+ Resource s1 = subject1.get();
+ graph.claim(s1, b.InstanceOf, b.Entity);
+ graph.claimValue(s1, value11);
+ subject1.set(s1);
+ Resource s2 = subject2.get();
+ graph.claim(s2, b.InstanceOf, b.Entity);
+ graph.claimValue(s2, value21);
+ subject2.set(s2);
+ }
+ });
+ } catch (Throwable e) {
+ fail("Write transaction threw an unknown exception ", e);
+ }
+
+ try {
+ session.syncRequest(new ReadRequest() {
+ @Override
+ public void run(ReadGraph graph) throws DatabaseException {
+ Resource s1 = subject1.get();
+ byte[] t1 = graph.getValue(s1, Bindings.BYTE_ARRAY);
+ if (!Arrays.equals(t1, value11))
+ fail("Failed to verify value11.");
+ Resource s2 = subject2.get();
+ byte[] t2 = graph.getValue(s2, Bindings.BYTE_ARRAY);
+ if (!Arrays.equals(t2, value21))
+ fail("Failed to verify value21.");
+ }
+ });
+ } catch (Throwable e) {
+ fail("Read transaction threw an unexpected exception ", e);
+ }
+
+ try {
+ support.undo(session, 2);
+ } catch (Throwable e) {
+ fail("Undo operation threw an unexpected exception.", e);
+ }
+
+ try {
+ session.syncRequest(new ReadRequest() {
+ @Override
+ public void run(ReadGraph graph) throws DatabaseException {
+ Resource s1 = subject1.get();
+ byte[] t1 = graph.getValue(s1, Bindings.BYTE_ARRAY);
+ if (!Arrays.equals(t1, value10))
+ fail("Failed to verify value1.");
+ Resource s2 = subject2.get();
+ byte[] t2 = graph.getValue(s2, Bindings.BYTE_ARRAY);
+ if (!Arrays.equals(t2, value20))
+ fail("Failed to verify value2.");
+ }
+ });
+ } catch (Throwable e) {
+ fail("Read transaction threw an unexpected exception ", e);
+ }
+
+ }
+
+}
+
Code Review / simantics / platform.git / blobdiff