/*
 * 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.jdo.tck.query.api;

import javax.jdo.Query;
import org.apache.jdo.tck.pc.company.CompanyModelReader;
import org.apache.jdo.tck.pc.company.Employee;
import org.apache.jdo.tck.pc.company.Person;
import org.apache.jdo.tck.query.QueryTest;
import org.apache.jdo.tck.util.BatchTestRunner;

/**
 * <B>Title:</B> Set Unique. <br>
 * <B>Keywords:</B> query <br>
 * <B>Assertion ID:</B> A14.6-18. <br>
 * <B>Assertion Description: </B> void setUnique (boolean unique); Specify that there is a single
 * result of the query.
 */
public class SetUnique extends QueryTest {

  /** */
  private static final String ASSERTION_FAILED = "Assertion A14.6-18 (SetUnique) failed: ";

  /** The expected results of valid queries. */
  private final Object[] expectedResult = {
    getTransientCompanyModelInstance(Employee.class, "emp1"),
    getTransientCompanyModelInstancesAsList(Employee.class, "emp1", "emp2", "emp3", "emp4", "emp5")
  };

  /**
   * The <code>main</code> is called when the class is directly executed from the command line.
   *
   * @param args The arguments passed to the program.
   */
  public static void main(String[] args) {
    BatchTestRunner.run(SetUnique.class);
  }

  /** */
  public void testPositive() {
    int index = 0;
    Query<Person> query = getPM().newQuery(Person.class);
    query.setUnique(true);
    query.setFilter("lastname == 'emp1Last'");
    String singleStringQuery = "SELECT FROM Person WHERE lastname == 'emp1Last'";
    executeJDOQuery(
        ASSERTION_FAILED, query, singleStringQuery, false, null, expectedResult[index], true);

    index = 1;
    query = getPM().newQuery(Person.class);
    query.setUnique(false);
    singleStringQuery = "SELECT FROM Person";
    executeJDOQuery(
        ASSERTION_FAILED, query, singleStringQuery, false, null, expectedResult[index], true);
  }

  /**
   * @see org.apache.jdo.tck.JDO_Test#localSetUp()
   */
  @Override
  protected void localSetUp() {
    addTearDownClass(CompanyModelReader.getTearDownClasses());
    loadAndPersistCompanyModel(getPM());
  }
}