jpa/org.eclipse.persistence.jpa.jpql/src/test/java/org/eclipse/persistence/jpa/tests/jpql/parser/ConcatExpressionTest.java

/*
 * 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 ConcatExpressionTest extends JPQLParserTest {

    private JPQLQueryStringFormatter buildQueryStringFormatter_04() {
        return new JPQLQueryStringFormatter() {
            @Override
            public String format(String query) {
                return query.replace(",)", ", )");
            }
        };
    }

    private JPQLQueryStringFormatter buildQueryStringFormatter_11() {
        return new JPQLQueryStringFormatter() {
            @Override
            public String format(String query) {
                return query.replace(",)", ", )");
            }
        };
    }

    private JPQLQueryStringFormatter buildQueryStringFormatter_12() {
        return new JPQLQueryStringFormatter() {
            @Override
            public String format(String query) {
                return query.replace("(AND", "( AND");
            }
        };
    }

    private JPQLQueryStringFormatter buildQueryStringFormatter_13() {
        return new JPQLQueryStringFormatter() {
            @Override
            public String format(String query) {
                query = query.replace("(AND", "( AND");
                query = query.replace("\')", "\' )");
                return query;
            }
        };
    }

    @Test
    public void test_JPQLQuery_01() {

        String query = "SELECT e FROM Employee e WHERE CONCAT(e.firstName, e.lastName)";

        ExpressionTester selectStatement = selectStatement(
            select(variable("e")),
            from("Employee", "e"),
            where(concat(path("e.firstName"), path("e.lastName")))
        );

        testQuery(query, selectStatement);
    }

    @Test
    public void test_JPQLQuery_02() {

        String query = "SELECT e FROM Employee e WHERE CONCAT(AVG(e.firstName), e.lastName)";

        ExpressionTester selectStatement = selectStatement(
            select(variable("e")),
            from("Employee", "e"),
            where(concat(avg("e.firstName"), path("e.lastName")))
        );

        testQuery(query, selectStatement);
    }

    @Test
    public void test_JPQLQuery_03() {

        String query = "SELECT e FROM Employee e WHERE CONCAT(e.firstName,)";

        CollectionExpressionTester collectionExpression = collection(
            new ExpressionTester[] { path("e.firstName"), nullExpression() },
            new Boolean[] { true,  false },
            new Boolean[] { false, false }
        );

        ExpressionTester selectStatement = selectStatement(
            select(variable("e")),
            from("Employee", "e"),
            where(concat(collectionExpression))
        );

        testInvalidQuery(query, selectStatement);
    }

    @Test
    public void test_JPQLQuery_04() {

        String query = "SELECT e FROM Employee e WHERE CONCAT(e.firstName, )";

        CollectionExpressionTester collectionExpression = collection(
            new ExpressionTester[] { path("e.firstName"), nullExpression() },
            new Boolean[] { true, false },
            new Boolean[] { true, false }
        );

        ExpressionTester selectStatement = selectStatement(
            select(variable("e")),
            from("Employee", "e"),
            where(concat(collectionExpression))
        );

        testInvalidQuery(query, selectStatement, buildQueryStringFormatter_04());
    }

    @Test
    public void test_JPQLQuery_05() {

        String query = "SELECT e FROM Employee e WHERE CONCAT";

        ConcatExpressionTester concatExpression = concat(nullExpression());
        concatExpression.hasLeftParenthesis  = false;
        concatExpression.hasRightParenthesis = false;

        ExpressionTester selectStatement = selectStatement(
            select(variable("e")),
            from("Employee", "e"),
            where(concatExpression)
        );

        testInvalidQuery(query, selectStatement);
    }

    @Test
    public void test_JPQLQuery_06() {

        String query = "SELECT e FROM Employee e WHERE CONCAT(";

        ConcatExpressionTester concatExpression = concat(nullExpression());
        concatExpression.hasRightParenthesis = false;

        ExpressionTester selectStatement = selectStatement(
            select(variable("e")),
            from("Employee", "e"),
            where(concatExpression)
        );

        testInvalidQuery(query, selectStatement);
    }

    @Test
    public void test_JPQLQuery_07() {

        String query = "SELECT e FROM Employee e WHERE CONCAT()";

        ExpressionTester selectStatement = selectStatement(
            select(variable("e")),
            from("Employee", "e"),
            where(concat(nullExpression()))
        );

        testInvalidQuery(query, selectStatement);
    }

    @Test
    public void test_JPQLQuery_08() {

        String query = "SELECT e FROM Employee e WHERE CONCAT(,)";

        CollectionExpressionTester collectionExpression = collection(
            new ExpressionTester[] { nullExpression(), nullExpression() },
            new Boolean[] { true,  false },
            new Boolean[] { false, false }
        );

        ExpressionTester selectStatement = selectStatement(
            select(variable("e")),
            from("Employee", "e"),
            where(concat(collectionExpression))
        );

        testInvalidQuery(query, selectStatement);
    }

    @Test
    public void test_JPQLQuery_09() {

        String query = "SELECT e FROM Employee e WHERE CONCAT(e.name,";

        CollectionExpressionTester collectionExpression = collection(
            new ExpressionTester[] { path("e.name"), nullExpression() },
            new Boolean[] { true,  false },
            new Boolean[] { false, false }
        );

        ConcatExpressionTester concatExpression = concat(collectionExpression);
        concatExpression.hasRightParenthesis = false;

        ExpressionTester selectStatement = selectStatement(
            select(variable("e")),
            from("Employee", "e"),
            where(concatExpression)
        );

        testInvalidQuery(query, selectStatement);
    }

    @Test
    public void test_JPQLQuery_10() {

        String query = "SELECT e FROM Employee e WHERE CONCAT(e.name, ";

        CollectionExpressionTester collectionExpression = collection(
            new ExpressionTester[] { path("e.name"), nullExpression() },
            new Boolean[] { true, false },
            new Boolean[] { true, false }
        );

        ConcatExpressionTester concatExpression = concat(collectionExpression);
        concatExpression.hasRightParenthesis = false;

        ExpressionTester selectStatement = selectStatement(
            select(variable("e")),
            from("Employee", "e"),
            where(concatExpression)
        );

        testInvalidQuery(query, selectStatement);
    }

    @Test
    public void test_JPQLQuery_11() {

        String query = "SELECT e FROM Employee e WHERE CONCAT(e.name, )";

        CollectionExpressionTester collectionExpression = collection(
            new ExpressionTester[] { path("e.name"), nullExpression() },
            new Boolean[] { true, false },
            new Boolean[] { true, false }
        );

        ExpressionTester selectStatement = selectStatement(
            select(variable("e")),
            from("Employee", "e"),
            where(concat(collectionExpression))
        );

        testInvalidQuery(query, selectStatement, buildQueryStringFormatter_11());
    }

    @Test
    public void test_JPQLQuery_12() {

        String query = "SELECT e FROM Employee e WHERE CONCAT( AND e.name = 'Pascal'";

        ConcatExpressionTester concatExpression = concat(nullExpression());
        concatExpression.hasRightParenthesis = false;

        ExpressionTester selectStatement = selectStatement(
            select(variable("e")),
            from("Employee", "e"),
            where(
                    concatExpression
                .and(
                    path("e.name").equal(string("'Pascal'"))
                )
            )
        );

        testInvalidQuery(query, selectStatement, buildQueryStringFormatter_12());
    }

    @Test
    public void test_JPQLQuery_13() {

        String query = "SELECT e FROM Employee e WHERE CONCAT( AND e.name = 'Pascal' )";

        ConcatExpressionTester concatExpression = concat(nullExpression());
        concatExpression.hasRightParenthesis = false;

        SelectStatementTester selectStatement = selectStatement(
            select(variable("e")),
            from("Employee", "e"),
            where(
                    concatExpression
                .and(
                    path("e.name").equal(string("'Pascal'"))
                )
            )
        );

        selectStatement.hasSpaceAfterWhere = true;

        JPQLExpressionTester jpqlExpression = jpqlExpression(selectStatement, unknown(")"));
        testInvalidQuery(query, jpqlExpression, buildQueryStringFormatter_13());
    }
}