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Groovy example source code file (SqlTransactionTestCase.groovy)

This example Groovy source code file (SqlTransactionTestCase.groovy) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Groovy tags/keywords

connection, create, from, from, jdbc, person_food, person_food, select, select, should, sql, sql, sqlexception, sqlexception, table, varchar

The Groovy SqlTransactionTestCase.groovy source code

/*
 * Copyright 2003-2009 the original author or authors.
 *
 * 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 groovy.sql

import java.sql.Connection
import java.sql.SQLException

/**
 * Test Sql transaction features using a Sql built from a connection
 *
 * @author Paul King
 */
class SqlTransactionTestCase extends GroovyTestCase {

    Sql sql
    DataSet personFood

    protected Sql setUpSql() {
        throw new UnsupportedOperationException("Please provide setUpSql in derived class")
    }

    protected tryDrop(String tableName) {
        try {
           sql.execute("DROP TABLE $tableName".toString())
        } catch(Exception e){ }
    }

    void setUp() {
        sql = setUpSql()
        // drop them in this order due to FK constraint
        ["PERSON_FOOD", "PERSON"].each{ tryDrop(it) }

        sql.execute("CREATE TABLE person ( id INTEGER, firstname VARCHAR, lastname VARCHAR, PRIMARY KEY (id))")
        sql.execute("CREATE TABLE person_food ( personid INTEGER, food VARCHAR, FOREIGN KEY (personid) REFERENCES person(id))")

        // populate some data
        def people = sql.dataSet("PERSON")
        people.add(id: 1, firstname: "James", lastname: "Strachan")
        people.add(id: 2, firstname: "Bob", lastname: "Mcwhirter")
        people.add(id: 3, firstname: "Sam", lastname: "Pullara")
        people.add(id: 4, firstname: "Jean", lastname: "Gabin")
        people.add(id: 5, firstname: "Lino", lastname: "Ventura")
        personFood = sql.dataSet("PERSON_FOOD")
        personFood.add(personid: 1, food: "cheese")
        personFood.add(personid: 1, food: "wine")
        personFood.add(personid: 2, food: "chicken")
    }

    void testManualTransactionSuccess() {
        assert sql.rows("SELECT * FROM PERSON_FOOD").size() == 3
        sql.cacheConnection { Connection connection ->
            connection.autoCommit = false
            personFood.add(personid: 3, food: "beef")
            personFood.add(personid: 4, food: "fish")
            sql.commit()
            connection.autoCommit = true
        }
        assert sql.rows("SELECT * FROM PERSON_FOOD").size() == 5
    }

    void testWithTransactionSuccess() {
        assert sql.rows("SELECT * FROM PERSON_FOOD").size() == 3
        sql.withTransaction {
            personFood.add(personid: 3, food: "beef")
            personFood.add(personid: 4, food: "fish")
        }
        assert sql.rows("SELECT * FROM PERSON_FOOD").size() == 5
    }

    void testManualTransactionRollbackUsingSql() {
        assert sql.rows("SELECT * FROM PERSON_FOOD").size() == 3
        sql.cacheConnection { Connection connection ->
            connection.autoCommit = false
            def numAdds = 0
            try {
                personFood.add(personid: 5, food: "veg")
                numAdds++
                personFood.add(personid: 99, food: "mash")
                numAdds++      // should fail before here
                sql.commit()   // should never get here
                fail("Should have thrown an exception before now")
            } catch (SQLException se) {
                assert numAdds == 1
                assert se.message.contains('Integrity constraint violation')
                sql.rollback()
            }
            connection.autoCommit = true
        }
        assert sql.rows("SELECT * FROM PERSON_FOOD").size() == 3
    }

    void testManualTransactionRollbackUsingDataSet() {
        assert sql.rows("SELECT * FROM PERSON_FOOD").size() == 3
        personFood.cacheConnection { Connection connection ->
            connection.autoCommit = false
            def numAdds = 0
            try {
                personFood.add(personid: 5, food: "veg")
                numAdds++
                personFood.add(personid: 99, food: "mash")
                numAdds++      // should fail before here
                personFood.commit()   // should never get here
                fail("Should have thrown an exception before now")
            } catch (SQLException se) {
                assert numAdds == 1
                assert se.message.contains('Integrity constraint violation')
                personFood.rollback()
            }
            connection.autoCommit = true
        }
        assert sql.rows("SELECT * FROM PERSON_FOOD").size() == 3
    }

    void testWithTransactionRollbackUsingSql() {
        assert sql.rows("SELECT * FROM PERSON_FOOD").size() == 3
        def numAdds = 0
        try {
            sql.withTransaction { ->
                personFood.add(personid: 5, food: "veg")
                numAdds++
                personFood.add(personid: 99, food: "mash") // should fail
                numAdds++
            }
            fail("Should have thrown an exception before now")
        } catch (SQLException se) {
            assert numAdds == 1
            assert se.message.contains('Integrity constraint violation')
        }
        assert sql.rows("SELECT * FROM PERSON_FOOD").size() == 3
    }

    void testWithTransactionRollbackUsingDataSet() {
        assert sql.rows("SELECT * FROM PERSON_FOOD").size() == 3
        def numAdds = 0
        try {
            personFood.withTransaction { ->
                personFood.add(personid: 5, food: "veg")
                numAdds++
                personFood.add(personid: 99, food: "mash") // should fail
                numAdds++
            }
            fail("Should have thrown an exception before now")
        } catch (SQLException se) {
            assert numAdds == 1
            assert se.message.contains('Integrity constraint violation')
        }
        assert sql.rows("SELECT * FROM PERSON_FOOD").size() == 3
    }
}

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