Added missing org.simantics.db.{tests,testing} plug-ins.

[simantics/platform.git] / tests / org.simantics.db.tests / src / org / simantics / db / tests / regression / bugs / WriteCancelTest3.java

diff --git a/tests/org.simantics.db.tests/src/org/simantics/db/tests/regression/bugs/WriteCancelTest3.java b/tests/org.simantics.db.tests/src/org/simantics/db/tests/regression/bugs/WriteCancelTest3.java
new file mode 100644 (file)
index 0000000..c84d1c8
--- /dev/null
+++ b/tests/org.simantics.db.tests/src/org/simantics/db/tests/regression/bugs/WriteCancelTest3.java
@@ -0,0 +1,91 @@
+/*******************************************************************************
+ * 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.regression.bugs;
+
+import org.junit.Test;
+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.AssumptionException;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.exception.ResourceNotFoundException;
+import org.simantics.db.testing.base.ExistingDatabaseTest;
+import org.simantics.layer0.Layer0;
+
+/**
+ * Tests that exception during write causes canceling of changes.
+ * This tests must be added at least twice in order for the bug to appear.
+ * Even then the bug is not deterministic.
+ */
+public class WriteCancelTest3 extends ExistingDatabaseTest {
+    final String resourceName = "WriteCancelTest3";
+    @Test
+    public void testWriteCancelTest3() throws Exception {
+       final Session session = getSession();
+        boolean exceptionThrown = false;
+        try {
+            session.syncRequest(new WriteRequest() {
+                @Override
+                public void perform(WriteGraph graph) throws DatabaseException {
+                    Layer0 L0 = Layer0.getInstance(graph);
+                    checkThatInstanceDoesNotExist(graph);
+                    Resource r1 = graph.newResource();
+                    graph.claim(r1, L0.InstanceOf, null, L0.Library);
+                    graph.claimLiteral(r1, L0.HasName, resourceName);
+                    Resource root = graph.getResource(ROOT_LIBRARY_URI);
+                    graph.claim(root, L0.ConsistsOf, L0.PartOf, r1);
+                    checkThatInstanceDoesExist(graph);
+                    throw new AssumptionException("Intentional exception during write.");
+                }
+            });
+        } catch (AssumptionException e) {
+            exceptionThrown = true;
+            if (DEBUG)
+                System.out.println("Catched AssumptionException as excepected:" + e.getMessage());
+        } catch (Throwable e) {
+            fail("Write transaction threw an unknown exception " + e);
+        }
+        assertTrue("Failed to throw exception as expected.", exceptionThrown);
+        session.sync(new ReadRequest() {
+            @Override
+            public void run(ReadGraph graph) throws DatabaseException {
+                checkThatInstanceDoesNotExist(graph);
+            }
+        });
+    }
+    private void checkThatInstanceDoesExist(final ReadGraph graph) {
+        try {
+            String uri = ROOT_LIBRARY_URI + "/" + resourceName;
+            Resource r = graph.getResource(uri);
+            if (null == r)
+                fail("Uri " + uri + " has not been defined.");
+        } catch (DatabaseException e) {
+            fail("Unexpected exception during read request: " + e.getMessage());
+        }
+    }
+    private void checkThatInstanceDoesNotExist(final ReadGraph graph) {
+        try {
+            String uri = ROOT_LIBRARY_URI + "/" + resourceName;
+            Resource r = graph.getResource(uri);
+            if (null != r)
+                fail("Uri " + uri + " has been defined.");
+        } catch (ResourceNotFoundException e) {
+            if (DEBUG)
+                System.out.println("Catched ResourceNotFoundException as expected.");
+        } catch (DatabaseException e) {
+            fail("Unexpected exception during read request: " + e.getMessage());
+        }
+    }
+}