/*
 * Copyright (c) 2012, 2020 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.*;

/**
 * This unit-test tests parsing {@link org.eclipse.persistence.jpa.jpql.parser.TableVariableDeclaration
 * TableVariableDeclaration}.
 *
 * @version 2.4
 * @since 2.4
 * @author Pascal Filion
 */
@SuppressWarnings("nls")
public final class TableVariableDeclarationTest extends JPQLParserTest {

    @Test
    public final void buildBuildExpression_01() throws Exception {

        String jpqlQuery = "SELECT e FROM Employee e, TABLE('DEPT') d WHERE e.dept = d";

        ExpressionTester selectStatement = selectStatement(
            select(variable("e")),
            from(
                identificationVariableDeclaration("Employee", "e"),
                tableVariableDeclaration(table("'DEPT'"), variable("d"))
            ),
            where(path("e.dept").equal(variable("d")))
        );

        testQuery(jpqlQuery, selectStatement);
    }

    @Test
    public final void buildBuildExpression_02() throws Exception {

        String jpqlQuery = "SELECT e FROM Employee e, TABLE('DEPT') AS d WHERE e.dept = d";

        ExpressionTester selectStatement = selectStatement(
            select(variable("e")),
            from(
                identificationVariableDeclaration("Employee", "e"),
                tableVariableDeclarationAs(table("'DEPT'"), variable("d"))
            ),
            where(path("e.dept").equal(variable("d")))
        );

        testQuery(jpqlQuery, selectStatement);
    }

    @Test
    public final void buildBuildExpression_03() throws Exception {

        String jpqlQuery = "SELECT e FROM Employee e, TABLE('DEPT') AS WHERE e.dept = d";

        TableVariableDeclarationTester tableVariableDeclaration = tableVariableDeclarationAs(
            table("'DEPT'"),
            nullExpression()
        );

        tableVariableDeclaration.hasSpaceAfterAs = true;

        SelectStatementTester selectStatement = selectStatement(
            select(variable("e")),
            from(
                identificationVariableDeclaration("Employee", "e"),
                tableVariableDeclaration
            ),
            where(path("e.dept").equal(variable("d")))
        );

        selectStatement.hasSpaceAfterFrom = false;

        testInvalidQuery(jpqlQuery, selectStatement);
    }

    @Test
    public final void buildBuildExpression_04() throws Exception {

        String jpqlQuery = "SELECT e FROM Employee e, TABLE() WHERE e.dept = d";

        TableVariableDeclarationTester tableVariableDeclaration = tableVariableDeclaration(
            table(nullExpression()),
            nullExpression()
        );

        tableVariableDeclaration.hasSpaceAfterTableExpression = true;

        SelectStatementTester selectStatement = selectStatement(
            select(variable("e")),
            from(
                identificationVariableDeclaration("Employee", "e"),
                tableVariableDeclaration
            ),
            where(path("e.dept").equal(variable("d")))
        );

        selectStatement.hasSpaceAfterFrom = false;

        testInvalidQuery(jpqlQuery, selectStatement);
    }

    @Test
    public final void buildBuildExpression_05() throws Exception {

        String jpqlQuery = "SELECT e FROM Employee e, TABLE('DEPT' WHERE e.dept = d";

        TableExpressionTester table = table("'DEPT'");
        table.hasRightParenthesis = false;

        TableVariableDeclarationTester tableVariableDeclaration = tableVariableDeclaration(
            table,
            nullExpression()
        );

        tableVariableDeclaration.hasSpaceAfterTableExpression = true;

        SelectStatementTester selectStatement = selectStatement(
            select(variable("e")),
            from(
                identificationVariableDeclaration("Employee", "e"),
                tableVariableDeclaration
            ),
            where(path("e.dept").equal(variable("d")))
        );

        selectStatement.hasSpaceAfterFrom = false;

        testInvalidQuery(jpqlQuery, selectStatement);
    }

    @Test
    public final void buildBuildExpression_06() throws Exception {

        String jpqlQuery = "SELECT e FROM Employee e, TABLE('DEPT' WHERE e.dept = d";

        TableExpressionTester table = table("'DEPT'");
        table.hasRightParenthesis = false;

        TableVariableDeclarationTester tableVariableDeclaration = tableVariableDeclaration(
            table,
            nullExpression()
        );

        tableVariableDeclaration.hasSpaceAfterTableExpression = true;

        SelectStatementTester selectStatement = selectStatement(
            select(variable("e")),
            from(
                identificationVariableDeclaration("Employee", "e"),
                tableVariableDeclaration
            ),
            where(path("e.dept").equal(variable("d")))
        );

        selectStatement.hasSpaceAfterFrom = false;

        testInvalidQuery(jpqlQuery, selectStatement);
    }

    @Test
    public final void buildBuildExpression_07() throws Exception {

        String jpqlQuery = "SELECT e FROM Employee e, TABLE d WHERE e.dept = d";

        TableExpressionTester table = table(nullExpression());
        table.hasLeftParenthesis  = false;
        table.hasRightParenthesis = false;

        SelectStatementTester selectStatement = selectStatement(
            select(variable("e")),
            from(
                identificationVariableDeclaration("Employee", "e"),
                tableVariableDeclaration(table, "d")
            ),
            where(path("e.dept").equal(variable("d")))
        );

        testInvalidQuery(jpqlQuery, selectStatement);
    }

    @Test
    public final void buildBuildExpression_08() throws Exception {

        String jpqlQuery = "SELECT e FROM Employee e, TABLE AS d WHERE e.dept = d";

        TableExpressionTester table = table(nullExpression());
        table.hasLeftParenthesis  = false;
        table.hasRightParenthesis = false;

        SelectStatementTester selectStatement = selectStatement(
            select(variable("e")),
            from(
                identificationVariableDeclaration("Employee", "e"),
                tableVariableDeclarationAs(table, "d")
            ),
            where(path("e.dept").equal(variable("d")))
        );

        testInvalidQuery(jpqlQuery, selectStatement);
    }

    @Test
    public final void buildBuildExpression_09() throws Exception {

        String jpqlQuery = "SELECT e FROM Employee e, TABLE 'DEPT') AS d WHERE e.dept = d";

        TableExpressionTester table = table("'DEPT'");
        table.hasLeftParenthesis  = false;
        table.hasRightParenthesis = true;

        SelectStatementTester selectStatement = selectStatement(
            select(variable("e")),
            from(
                identificationVariableDeclaration("Employee", "e"),
                tableVariableDeclarationAs(table, "d")
            ),
            where(path("e.dept").equal(variable("d")))
        );

        testInvalidQuery(jpqlQuery, selectStatement);
    }

    @Test
    public final void buildBuildExpression_10() throws Exception {

        String jpqlQuery = "SELECT e FROM Employee e, TABLE WHERE e.dept = d";

        TableExpressionTester table = table(nullExpression());
        table.hasLeftParenthesis  = false;
        table.hasRightParenthesis = false;

        TableVariableDeclarationTester tableVariableDeclaration = tableVariableDeclaration(
            table,
            nullExpression()
        );

        tableVariableDeclaration.hasSpaceAfterTableExpression = true;

        SelectStatementTester selectStatement = selectStatement(
            select(variable("e")),
            from(
                identificationVariableDeclaration("Employee", "e"),
                tableVariableDeclaration
            ),
            where(path("e.dept").equal(variable("d")))
        );

        selectStatement.hasSpaceAfterFrom = false;

        testInvalidQuery(jpqlQuery, selectStatement);
    }

    @Test
    public final void buildBuildExpression_11() throws Exception {

        String jpqlQuery = "SELECT e FROM Employee e, TABLE, Address a";

        TableExpressionTester table = table(nullExpression());
        table.hasLeftParenthesis  = false;
        table.hasRightParenthesis = false;

        SelectStatementTester selectStatement = selectStatement(
            select(variable("e")),
            from(
                identificationVariableDeclaration("Employee", "e"),
                tableVariableDeclaration(table, nullExpression()),
                identificationVariableDeclaration("Address", "a")
            )
        );

        testInvalidQuery(jpqlQuery, selectStatement);
    }

    @Test
    public final void buildBuildExpression_12() throws Exception {

        String jpqlQuery = "SELECT e FROM Employee e, TABLE";

        TableExpressionTester table = table(nullExpression());
        table.hasLeftParenthesis  = false;
        table.hasRightParenthesis = false;

        SelectStatementTester selectStatement = selectStatement(
            select(variable("e")),
            from(
                identificationVariableDeclaration("Employee", "e"),
                tableVariableDeclaration(table, nullExpression())
            )
        );

        testInvalidQuery(jpqlQuery, selectStatement);
    }

    @Test
    public final void buildBuildExpression_13() throws Exception {

        String jpqlQuery = "SELECT e FROM TABLE('DEPT') d";

        SelectStatementTester selectStatement = selectStatement(
            select(variable("e")),
            from(tableVariableDeclaration("'DEPT'", "d"))
        );

        testInvalidQuery(jpqlQuery, selectStatement);
    }

    @Test
    public final void buildBuildExpression_14() throws Exception {

        String jpqlQuery = "SELECT e FROM TABLE('DEPT') AS d";

        SelectStatementTester selectStatement = selectStatement(
            select(variable("e")),
            from(tableVariableDeclarationAs("'DEPT'", "d"))
        );

        testInvalidQuery(jpqlQuery, selectStatement);
    }

    @Test
    public final void buildBuildExpression_15() throws Exception {

        String jpqlQuery = "SELECT e FROM TABLE('DEPT') AS d, Employee e";

        SelectStatementTester selectStatement = selectStatement(
            select(variable("e")),
            from(
                tableVariableDeclarationAs("'DEPT'", "d"),
                identificationVariableDeclaration("Employee", "e")
            )
        );

        testInvalidQuery(jpqlQuery, selectStatement);
    }
}