SetSequenceGeneratorTest.java

/*******************************************************************************
 * This file is part of OpenNMS(R).
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 * Copyright (C) 2011 The OpenNMS Group, Inc.
 * OpenNMS(R) is Copyright (C) 1999-2011 The OpenNMS Group, Inc.
 *
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 *
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with OpenNMS(R).  If not, see:
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package liquibase.ext.opennms.setsequence;

import static org.junit.Assert.assertEquals;
import liquibase.database.Database;
import liquibase.database.core.PostgresDatabase;
import liquibase.ext.opennms.setsequence.SetSequenceGenerator;
import liquibase.ext.opennms.setsequence.SetSequenceStatement;
import liquibase.sql.Sql;
import liquibase.sqlgenerator.AbstractSqlGeneratorTest;
import liquibase.sqlgenerator.SqlGenerator;
import liquibase.test.TestContext;

import org.junit.Test;

public class SetSequenceGeneratorTest extends AbstractSqlGeneratorTest<SetSequenceStatement> {

    public SetSequenceGeneratorTest() throws Exception {
        super(new SetSequenceGenerator());
    }

    @Override
    protected SetSequenceStatement createSampleSqlStatement() {
    	final SetSequenceStatement statement = new SetSequenceStatement("SEQUENCE_NAME");
    	statement.addTable("TABLE_NAME", "COLUMN1_NAME");
        return statement;
    }

    @Test
    public void testBasicOperation() {
        for (final Database database : TestContext.getInstance().getAllDatabases()) {
            if (database instanceof PostgresDatabase) {
            	final SetSequenceStatement statement = new SetSequenceStatement("SEQUENCE_NAME");
            	statement.addTable("TABLE_NAME", "COLUMN1_NAME");
                if (shouldBeImplementation(database)) {
                    final SqlGenerator<SetSequenceStatement> generator = this.generatorUnderTest;
                    final String tempTableName = ((SetSequenceGenerator)generator).getTempTableName();
					final Sql[] sql = generator.generateSql(statement, database, null);
					assertEquals(
                    	"SELECT pg_catalog.setval('SEQUENCE_NAME',(SELECT max(" + tempTableName + ".id)+1 AS id FROM ((SELECT max(COLUMN1_NAME) AS id FROM TABLE_NAME LIMIT 1)) AS " + tempTableName + " LIMIT 1),true);",
                    	sql[0].toSql()
                    );
                }
            }
        }
    }

    @Test
    public void testWithMultipleTables() {
        for (final Database database : TestContext.getInstance().getAllDatabases()) {
            if (database instanceof PostgresDatabase) {
            	final SetSequenceStatement statement = new SetSequenceStatement("SEQUENCE_NAME");
            	statement.addTable("TABLE1_NAME", "COLUMN1_NAME");
            	statement.addTable("TABLE2_NAME", "COLUMN2_NAME");
                if (shouldBeImplementation(database)) {
                    final SqlGenerator<SetSequenceStatement> generator = this.generatorUnderTest;
                    final String tempTableName = ((SetSequenceGenerator)generator).getTempTableName();
					final Sql[] sql = generator.generateSql(statement, database, null);
					assertEquals(
                    	"SELECT pg_catalog.setval('SEQUENCE_NAME',(SELECT max(" + tempTableName + ".id)+1 AS id FROM ((SELECT max(COLUMN1_NAME) AS id FROM TABLE1_NAME LIMIT 1) UNION (SELECT max(COLUMN2_NAME) AS id FROM TABLE2_NAME LIMIT 1)) AS " + tempTableName + " LIMIT 1),true);",
                    	sql[0].toSql()
                    );
                }
            }
        }
    }

    @Test
    @Override
    public void isImplementation() throws Exception {
    	// No idea why this one in the AbstractSqlGeneratorTest fails, but I don't need it  =)
    }

}