/*******************************************************************************
* Copyright (c) 2006, 2015 Oracle and/or its affiliates. All rights reserved.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
* which accompanies this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* Contributors:
* Oracle - initial API and implementation
*
******************************************************************************/
package org.eclipse.persistence.jpa.tests.jpql.parser;
import org.eclipse.persistence.jpa.jpql.parser.AggregateFunction;
import org.junit.Test;
import static org.eclipse.persistence.jpa.tests.jpql.parser.JPQLParserTester.*;
/**
* Unit-tests for {@link org.eclipse.persistence.jpa.jpql.parser.AggregateFunction AggregateFunction}.
*
* @version 2.5
* @since 2.3
* @author Pascal Filion
*/
@SuppressWarnings("nls")
public abstract class AggregateFunctionTest extends JPQLParserTest {
protected abstract AggregateFunctionTester aggregateFunctionTester(ExpressionTester expression);
protected abstract Class<? extends AggregateFunction> functionClass();
protected abstract String identifier();
@Test
public final void test_JPQLQuery_01() {
String query = "SELECT " + identifier() + "(e) FROM Employee e";
ExpressionTester selectStatement = selectStatement(
select(aggregateFunctionTester(variable("e"))),
from("Employee", "e")
);
testQuery(query, selectStatement);
}
@Test
public final void test_JPQLQuery_02() {
String query = "SELECT " + identifier() + "(DISTINCT e) FROM Employee e";
AggregateFunctionTester aggregateFunctionTester = aggregateFunctionTester(variable("e"));
aggregateFunctionTester.hasDistinct = true;
aggregateFunctionTester.hasSpaceAfterDistinct = true;
ExpressionTester selectStatement = selectStatement(
select(aggregateFunctionTester),
from("Employee", "e")
);
testQuery(query, selectStatement);
}
@Test
public final void test_JPQLQuery_03() {
String query = "SELECT " + identifier() + " FROM Employee e";
AggregateFunctionTester aggregateFunctionTester = aggregateFunctionTester(nullExpression());
aggregateFunctionTester.hasLeftParenthesis = false;
aggregateFunctionTester.hasRightParenthesis = false;
ExpressionTester selectStatement = selectStatement(
select(aggregateFunctionTester),
from("Employee", "e")
);
testInvalidQuery(query, selectStatement);
}
@Test
public final void test_JPQLQuery_04() {
String query = "SELECT " + identifier() + "( FROM Employee e";
AggregateFunctionTester aggregateFunctionTester = aggregateFunctionTester(nullExpression());
aggregateFunctionTester.hasRightParenthesis = false;
ExpressionTester selectStatement = selectStatement(
select(aggregateFunctionTester),
from("Employee", "e")
);
testInvalidQuery(query, selectStatement);
}
@Test
public final void test_JPQLQuery_05() {
String query = "SELECT " + identifier() + "() FROM Employee e";
ExpressionTester selectStatement = selectStatement(
select(aggregateFunctionTester(nullExpression())),
from("Employee", "e")
);
testQuery(query, selectStatement);
}
@Test
public final void test_JPQLQuery_06() {
String query = "SELECT " + identifier() + "(DISTINCT) FROM Employee e";
AggregateFunctionTester aggregateFunctionTester = aggregateFunctionTester(nullExpression());
aggregateFunctionTester.hasDistinct = true;
ExpressionTester selectStatement = selectStatement(
select(aggregateFunctionTester),
from("Employee", "e")
);
testQuery(query, selectStatement);
}
@Test
public final void test_JPQLQuery_07() {
String query = "SELECT " + identifier() + "(DISTINCT FROM Employee e";
AggregateFunctionTester aggregateFunctionTester = aggregateFunctionTester(nullExpression());
aggregateFunctionTester.hasDistinct = true;
aggregateFunctionTester.hasSpaceAfterDistinct = true;
aggregateFunctionTester.hasRightParenthesis = false;
SelectStatementTester selectStatement = selectStatement(
select(aggregateFunctionTester),
from("Employee", "e")
);
selectStatement.hasSpaceAfterSelect = false;
testInvalidQuery(query, selectStatement);
}
}