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+/*
+ * Copyright 2012 Frédéric Gaillard.
+ *
+ * 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 com.iciql.test;
+
+import static org.junit.Assert.assertEquals;
+
+import java.sql.SQLException;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+
+import com.iciql.Db;
+import com.iciql.IciqlException;
+import com.iciql.test.models.CategoryAnnotationOnly;
+import com.iciql.test.models.ProductAnnotationOnlyWithForeignKey;
+
+/**
+ * Tests of transactions.
+ */
+public class TransactionTest {
+
+	/**
+	 * This object represents a database (actually a connection to the
+	 * database).
+	 */
+
+	private Db db;
+
+	@Before
+	public void setUp() {
+		db = IciqlSuite.openNewDb();
+		
+		// tables creation
+		db.from(new CategoryAnnotationOnly());
+		db.from(new ProductAnnotationOnlyWithForeignKey());
+		
+		startTransactionMode();
+	}
+
+	@After
+	public void tearDown() {
+		
+		endTransactionMode();
+		
+		db.dropTable(ProductAnnotationOnlyWithForeignKey.class);
+		db.dropTable(CategoryAnnotationOnly.class);
+		db.close();
+	}
+
+	@Test
+	public void testTransaction() {
+		
+		// insert in 2 tables inside a transaction
+		
+		// insertAll don't use save point in this transaction
+		db.insertAll(CategoryAnnotationOnly.getList());
+		db.insertAll(ProductAnnotationOnlyWithForeignKey.getList());
+
+		// don't commit changes
+		try {
+			db.getConnection().rollback();
+		} catch (SQLException e) {
+			throw new IciqlException(e, "Can't rollback");
+		}
+		
+		ProductAnnotationOnlyWithForeignKey p = new ProductAnnotationOnlyWithForeignKey();
+		long count1 = db.from(p).selectCount();
+		
+		CategoryAnnotationOnly c = new CategoryAnnotationOnly();
+		long count2 = db.from(c).selectCount();
+		
+		// verify changes aren't committed
+		assertEquals(count1, 0L);
+		assertEquals(count2, 0L);
+	}
+
+	/**
+	 * Helper to set transaction mode
+	 */
+	private void startTransactionMode() {
+		db.setSkipCreate(true);
+		db.setAutoSavePoint(false);
+		
+		try {
+			db.getConnection().setAutoCommit(false);
+		} catch (SQLException e) {
+			throw new IciqlException(e, "Could not change auto-commit mode");
+		}
+	}
+	
+	/**
+	 * Helper to return to initial mode
+	 */
+	private void endTransactionMode() {
+		try {
+			db.getConnection().setAutoCommit(true);
+		} catch (SQLException e) {
+			throw new IciqlException(e, "Could not change auto-commit mode");
+		}
+		// returns to initial states
+		db.setSkipCreate(false);
+		db.setAutoSavePoint(true);
+	}
+	
+}