/*******************************************************************************
* 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.junit.Test;
import static org.eclipse.persistence.jpa.tests.jpql.parser.JPQLParserTester.*;
@SuppressWarnings("nls")
public final class NullComparisonExpressionTest extends JPQLParserTest {
@Test
public void test_JPQLQuery_01() {
String jpqlQuery = "SELECT e FROM Employee e WHERE e.name IS NULL";
ExpressionTester selectStatement = selectStatement(
select(variable("e")),
from("Employee", "e"),
where(isNull(path("e.name")))
);
testQuery(jpqlQuery, selectStatement);
}
@Test
public void test_JPQLQuery_02() {
String jpqlQuery = "SELECT e FROM Employee e WHERE e.name IS NOT NULL";
ExpressionTester selectStatement = selectStatement(
select(variable("e")),
from("Employee", "e"),
where(isNotNull(path("e.name")))
);
testQuery(jpqlQuery, selectStatement);
}
@Test
public void test_JPQLQuery_03() {
String jpqlQuery = "SELECT e FROM Employee e WHERE IS NULL";
ExpressionTester selectStatement = selectStatement(
select(variable("e")),
from("Employee", "e"),
where(isNull(nullExpression()))
);
testQuery(jpqlQuery, selectStatement);
}
@Test
public void test_JPQLQuery_04() {
String jpqlQuery = "SELECT e FROM Employee e WHERE IS NULL HAVING e.adult";
ExpressionTester selectStatement = selectStatement(
select(variable("e")),
from("Employee", "e"),
where(isNull(nullExpression())),
having(path("e.adult"))
);
testQuery(jpqlQuery, selectStatement);
}
}