| /** |
| * Derby - Class org.apache.derbyTesting.functionTests.tests.lang.SynonymTest |
| * |
| * 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.derbyTesting.functionTests.tests.lang; |
| |
| import java.sql.DatabaseMetaData; |
| import java.sql.ResultSet; |
| import java.sql.SQLException; |
| import java.sql.Statement; |
| import junit.framework.Test; |
| import org.apache.derbyTesting.junit.BaseJDBCTestCase; |
| import org.apache.derbyTesting.junit.BaseTestSuite; |
| import org.apache.derbyTesting.junit.CleanDatabaseTestSetup; |
| import org.apache.derbyTesting.junit.JDBC; |
| |
| /** |
| * Synonym testing using junit |
| */ |
| public class SynonymTest extends BaseJDBCTestCase { |
| |
| /** |
| * Basic constructor. |
| */ |
| public SynonymTest(String name) { |
| super(name); |
| } |
| |
| /** |
| * Create a suite of tests. |
| */ |
| public static Test suite() { |
| BaseTestSuite suite = |
| new BaseTestSuite(SynonymTest.class, "SynonymTest"); |
| |
| return new CleanDatabaseTestSetup(suite); |
| } |
| |
| /** |
| * The test makes sure that we correctly throw dependency exception when |
| * user requests to drop a synonym which has dependent objects on it. Once |
| * the dependency is removed, we should be able to drop the synonym. |
| * @throws SQLException |
| */ |
| public void testViewDependency() throws SQLException { |
| Statement stmt = createStatement(); |
| stmt.executeUpdate("create synonym mySyn for sys.systables"); |
| stmt.executeUpdate("create view v1 as select * from mySyn"); |
| stmt.executeUpdate("create view v2 as select * from v1"); |
| // Drop synonym should fail since it is used in two views. |
| assertStatementError("X0Y23", stmt, "drop synonym mySyn"); |
| stmt.executeUpdate("drop view v2"); |
| // fails still because of view v1's dependency |
| assertStatementError("X0Y23", stmt, "drop synonym mySyn"); |
| stmt.executeUpdate("drop view v1"); |
| stmt.executeUpdate("drop synonym mySyn"); |
| stmt.close(); |
| } |
| |
| /** |
| * DERBY-5244 DatabaseMetaData.getColumns(null, null, tableName, null) |
| * does not return the columns meta for a SYNONYM. This is because for |
| * synonyms, we do not add any rows in SYSCOLUMNS. But the metadata query |
| * for DatabaseMetaData.getColumns() looks at SYSCOLUMNS to get the |
| * resultset. Views and Tables do not have problems because we do keep |
| * their columns information in SYSCOLUMNS. |
| * |
| * Test DatabaseMetaData.getColumns call on synonyms |
| * |
| * This test confirms the behavior noticed in DERBY-5244. |
| */ |
| public void testMetaDataCallOnSynonymsDERBY5244() |
| throws SQLException |
| { |
| Statement st = createStatement(); |
| st.executeUpdate("create table t1Derby5422 "+ |
| "( c11 int not null, c12 char(2) )"); |
| //Create a synonym on table t1Derby5422 |
| st.executeUpdate("create synonym s1Derby5422 for t1Derby5422"); |
| st.executeUpdate("create view v1Derby5422 as select * from t1Derby5422"); |
| |
| //Verify that the synonym has been created successfully by |
| // doing a select from it |
| ResultSet rs = st.executeQuery("select * from S1DERBY5422"); |
| JDBC.assertEmpty(rs); |
| DatabaseMetaData dbmd = getConnection().getMetaData(); |
| //Derby can find metadata info for the base table |
| rs = dbmd.getColumns(null, null, "T1DERBY5422", null); |
| JDBC.assertDrainResultsHasData(rs); |
| //Derby can find metadata info for the view |
| rs = dbmd.getColumns(null, null, "V1DERBY5422", null); |
| JDBC.assertDrainResultsHasData(rs); |
| //But Derby does not locate the metadata info for synonym |
| rs = dbmd.getColumns(null, null, "S1DERBY5422", null); |
| JDBC.assertEmpty(rs); |
| } |
| |
| /** |
| * Test that synonyms are dereferenced properly for a searched DELETE. |
| * |
| * This test verifies that DERBY-4110 is fixed. |
| */ |
| public void testSynonymsInSearchedDeleteDERBY4110() |
| throws SQLException |
| { |
| Statement st = createStatement(); |
| st.executeUpdate("create schema test1"); |
| st.executeUpdate("create schema test2"); |
| st.executeUpdate("create table test1.t1 ( id bigint not null )"); |
| st.executeUpdate("insert into test1.t1 values (1),(2)"); |
| st.executeUpdate("create synonym test2.t1 for test1.t1"); |
| st.executeUpdate("create unique index idx4110 on test1.t1 (id)"); |
| st.executeUpdate("set schema test2"); |
| st.executeUpdate("delete from t1 where id = 2"); // DERBY-4110 here |
| st.executeUpdate("drop synonym test2.t1"); |
| st.executeUpdate("drop table test1.t1"); |
| st.executeUpdate("drop schema test2 restrict"); |
| st.executeUpdate("drop schema test1 restrict"); |
| } |
| |
| /** |
| * Verify the fix for DERBY-5168. SynonymAliasInfo.toString() used to |
| * return a value with incorrect syntax if the synonym referred to a |
| * table that had a double quote character either in its name or in the |
| * schema name. |
| */ |
| public void testSynonymsForTablesWithDoubleQuotes() throws SQLException { |
| setAutoCommit(false); |
| Statement s = createStatement(); |
| s.execute("create schema \"\"\"\""); |
| s.execute("create table \"\"\"\".\"\"\"\" (x int)"); |
| s.execute("create synonym derby_5168_synonym for \"\"\"\".\"\"\"\""); |
| |
| // We can exercise SynonymAliasInfo.toString() by reading the ALIASINFO |
| // column in SYS.SYSALIASES. This assert used to fail before the fix. |
| JDBC.assertSingleValueResultSet( |
| s.executeQuery( |
| "select aliasinfo from sys.sysaliases " + |
| "where alias = 'DERBY_5168_SYNONYM'"), |
| "\"\"\"\".\"\"\"\""); |
| } |
| } |