| /* |
| * Copyright (c) 2006, 2021 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 v. 2.0 which is available at |
| * http://www.eclipse.org/legal/epl-2.0, |
| * or the Eclipse Distribution License v. 1.0 which is available at |
| * http://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause |
| */ |
| |
| // 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 NullIfExpressionTest extends JPQLParserTest { |
| private JPQLQueryStringFormatter buildFormatter_9() { |
| return new JPQLQueryStringFormatter() { |
| @Override |
| public String format(String query) { |
| return query.replace(",)", ", )"); |
| } |
| }; |
| } |
| |
| @Test |
| public void test_JPQLQuery_1() { |
| String query = "SELECT NULLIF('JPQL', 4 + e.age) FROM Employee e"; |
| |
| ExpressionTester selectStatement = selectStatement |
| ( |
| select(nullIf(string("'JPQL'"), numeric(4).add(path("e.age")))), |
| from("Employee", "e") |
| ); |
| |
| testQuery(query, selectStatement); |
| } |
| |
| @Test |
| public void test_JPQLQuery_2() { |
| String query = "SELECT NULLIF() FROM Employee e"; |
| |
| NullIfExpressionTester nullIf = nullIf(nullExpression(), nullExpression()); |
| nullIf.hasComma = false; |
| nullIf.hasSpaceAfterComma = false; |
| |
| ExpressionTester selectStatement = selectStatement |
| ( |
| select(nullIf), |
| from("Employee", "e") |
| ); |
| |
| testQuery(query, selectStatement); |
| } |
| |
| @Test |
| public void test_JPQLQuery_3() { |
| String query = "SELECT NULLIF(,) FROM Employee e"; |
| |
| NullIfExpressionTester nullIf = nullIf(nullExpression(), nullExpression()); |
| nullIf.hasComma = true; |
| nullIf.hasSpaceAfterComma = false; |
| |
| ExpressionTester selectStatement = selectStatement |
| ( |
| select(nullIf), |
| from("Employee", "e") |
| ); |
| |
| testQuery(query, selectStatement); |
| } |
| |
| @Test |
| public void test_JPQLQuery_4() { |
| String query = "SELECT NULLIF FROM Employee e"; |
| |
| NullIfExpressionTester nullIf = nullIf(nullExpression(), nullExpression()); |
| nullIf.hasLeftParenthesis = false; |
| nullIf.hasComma = false; |
| nullIf.hasSpaceAfterComma = false; |
| nullIf.hasRightParenthesis = false; |
| |
| ExpressionTester selectStatement = selectStatement |
| ( |
| select(nullIf), |
| from("Employee", "e") |
| ); |
| |
| testInvalidQuery(query, selectStatement); |
| } |
| |
| @Test |
| public void test_JPQLQuery_5() { |
| String query = "SELECT NULLIF( FROM Employee e"; |
| |
| NullIfExpressionTester nullIf = nullIf(nullExpression(), nullExpression()); |
| nullIf.hasLeftParenthesis = true; |
| nullIf.hasComma = false; |
| nullIf.hasSpaceAfterComma = false; |
| nullIf.hasRightParenthesis = false; |
| |
| ExpressionTester selectStatement = selectStatement |
| ( |
| select(nullIf), |
| from("Employee", "e") |
| ); |
| |
| testInvalidQuery(query, selectStatement); |
| } |
| |
| @Test |
| public void test_JPQLQuery_6() { |
| String query = "SELECT NULLIF) FROM Employee e"; |
| |
| NullIfExpressionTester nullIf = nullIf(nullExpression(), nullExpression()); |
| nullIf.hasLeftParenthesis = false; |
| nullIf.hasComma = false; |
| nullIf.hasSpaceAfterComma = false; |
| nullIf.hasRightParenthesis = true; |
| |
| ExpressionTester selectStatement = selectStatement |
| ( |
| select(nullIf), |
| from("Employee", "e") |
| ); |
| |
| testQuery(query, selectStatement); |
| } |
| |
| @Test |
| public void test_JPQLQuery_7() { |
| String query = "SELECT NULLIF(e.name) FROM Employee e"; |
| |
| NullIfExpressionTester nullIf = nullIf(path("e.name"), nullExpression()); |
| nullIf.hasComma = false; |
| nullIf.hasSpaceAfterComma = false; |
| |
| ExpressionTester selectStatement = selectStatement |
| ( |
| select(nullIf), |
| from("Employee", "e") |
| ); |
| |
| testQuery(query, selectStatement); |
| } |
| |
| @Test |
| public void test_JPQLQuery_8() { |
| String query = "SELECT NULLIF(e.name,) FROM Employee e"; |
| |
| NullIfExpressionTester nullIf = nullIf(path("e.name"), nullExpression()); |
| nullIf.hasComma = true; |
| nullIf.hasSpaceAfterComma = false; |
| |
| ExpressionTester selectStatement = selectStatement |
| ( |
| select(nullIf), |
| from("Employee", "e") |
| ); |
| |
| testQuery(query, selectStatement); |
| } |
| |
| @Test |
| public void test_JPQLQuery_9() { |
| String query = "SELECT NULLIF(e.name, ) FROM Employee e"; |
| |
| NullIfExpressionTester nullIf = nullIf(path("e.name"), nullExpression()); |
| nullIf.hasComma = true; |
| nullIf.hasSpaceAfterComma = true; |
| |
| ExpressionTester selectStatement = selectStatement |
| ( |
| select(nullIf), |
| from("Employee", "e") |
| ); |
| |
| testValidQuery(query, selectStatement, buildFormatter_9()); |
| } |
| } |