/*
 * 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
<<<<<<< Updated upstream
 *
 *     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
=======
 * 
 *     https://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 
>>>>>>> Stashed changes
 * limitations under the License.
 */

package org.apache.jdo.tck.query.result;

import java.util.Arrays;
import javax.jdo.JDOQLTypedQuery;
import org.apache.jdo.tck.pc.company.CompanyModelReader;
import org.apache.jdo.tck.pc.company.Department;
import org.apache.jdo.tck.pc.company.FullTimeEmployee;
import org.apache.jdo.tck.pc.company.QFullTimeEmployee;
import org.apache.jdo.tck.query.QueryElementHolder;
import org.apache.jdo.tck.query.QueryTest;
import org.apache.jdo.tck.util.BatchTestRunner;

/**
 * <B>Title:</B> Grouping. <br>
 * <B>Keywords:</B> query <br>
 * <B>Assertion ID:</B> A14.6.10-1. <br>
 * <B>Assertion Description: </B> When grouping is specified, each result expression must be one of:
 * an expression contained in the grouping expression; or, an aggregate expression evaluated once
 * per group. The query groups all elements where all expressions specified in setGrouping have the
 * same values. The query result consists of one element per group.
 */
public class Grouping extends QueryTest {

  /** */
  private static final String ASSERTION_FAILED = "Assertion A14.6.10-1 (Grouping) failed: ";

  /**
   * The array of invalid queries which may be executed as single string queries and as API queries.
   */
  private static final QueryElementHolder<?>[] INVALID_QUERIES = {
    new QueryElementHolder<>(
        /*UNIQUE*/ null,
        /*RESULT*/ "department, salary",
        /*INTO*/ null,
        /*FROM*/ FullTimeEmployee.class,
        /*EXCLUDE*/ null,
        /*WHERE*/ null,
        /*VARIABLES*/ null,
        /*PARAMETERS*/ null,
        /*IMPORTS*/ null,
        /*GROUP BY*/ "department",
        /*ORDER BY*/ null,
        /*FROM*/ null,
        /*TO*/ null)
  };

  /**
   * 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(Grouping.class);
  }

  /** */
  public void testPositive() {
    Object expected =
        Arrays.asList(
            new Object[] {
              new Object[] {
                getTransientCompanyModelInstance(Department.class, "dept1"), Double.valueOf(30000.0)
              },
              new Object[] {
                getTransientCompanyModelInstance(Department.class, "dept2"), Double.valueOf(45000.0)
              }
            });

    JDOQLTypedQuery<FullTimeEmployee> query = getPM().newJDOQLTypedQuery(FullTimeEmployee.class);
    QFullTimeEmployee cand = QFullTimeEmployee.candidate();
    query.result(false, cand.department, cand.salary.sum());
    query.groupBy(cand.department);

    QueryElementHolder<FullTimeEmployee> holder =
        new QueryElementHolder<>(
            /*UNIQUE*/ null,
            /*RESULT*/ "department, SUM(salary)",
            /*INTO*/ null,
            /*FROM*/ FullTimeEmployee.class,
            /*EXCLUDE*/ null,
            /*WHERE*/ null,
            /*VARIABLES*/ null,
            /*PARAMETERS*/ null,
            /*IMPORTS*/ null,
            /*GROUP BY*/ "department",
            /*ORDER BY*/ null,
            /*FROM*/ null,
            /*TO*/ null,
            /*JDOQLTyped*/ query,
            /*paramValues*/ null);

    executeAPIQuery(ASSERTION_FAILED, holder, expected);
    executeSingleStringQuery(ASSERTION_FAILED, holder, expected);
    executeJDOQLTypedQuery(ASSERTION_FAILED, holder, null, true, expected);
  }

  /** */
  public void testNegative() {
    for (QueryElementHolder<?> invalidQuery : INVALID_QUERIES) {
      compileAPIQuery(ASSERTION_FAILED, invalidQuery, false);
      compileSingleStringQuery(ASSERTION_FAILED, invalidQuery, false);
    }
  }

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