Java11ValidatorTest.java

/*
 * Copyright (C) 2007-2010 J��lio Vilmar Gesser.
 * Copyright (C) 2011, 2013-2024 The JavaParser Team.
 *
 * This file is part of JavaParser.
 *
 * JavaParser can be used either under the terms of
 * a) the GNU Lesser General Public License as published by
 *     the Free Software Foundation, either version 3 of the License, or
 *     (at your option) any later version.
 * b) the terms of the Apache License
 *
 * You should have received a copy of both licenses in LICENCE.LGPL and
 * LICENCE.APACHE. Please refer to those files for details.
 *
 * JavaParser is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 */

package com.github.javaparser.ast.validator;

import static com.github.javaparser.ParseStart.STATEMENT;
import static com.github.javaparser.ParserConfiguration.LanguageLevel.JAVA_11;
import static com.github.javaparser.Providers.provider;
import static com.github.javaparser.utils.TestUtils.assertNoProblems;
import static com.github.javaparser.utils.TestUtils.assertProblems;

import com.github.javaparser.JavaParser;
import com.github.javaparser.ParseResult;
import com.github.javaparser.ParserConfiguration;
import com.github.javaparser.ast.stmt.Statement;
import org.junit.jupiter.api.Test;

class Java11ValidatorTest {
    public static final JavaParser javaParser = new JavaParser(new ParserConfiguration().setLanguageLevel(JAVA_11));

    @Test
    void varAllowedInLocalVariableDeclaration() {
        ParseResult<Statement> result = javaParser.parse(STATEMENT, provider("x((var x, var y) -> x+y);"));
        assertNoProblems(result);
    }

    @Test
    void switchExpressionNotAllowed() {
        ParseResult<Statement> result = javaParser.parse(STATEMENT, provider("int a = switch(x){};"));
        assertProblems(
                result,
                "(line 1,col 9) Switch expressions are not supported. Pay attention that this feature is supported starting from 'JAVA_12' language level. If you need that feature the language level must be configured in the configuration before parsing the source files.");
    }

    @Test
    void multiLabelCaseNotAllowed() {
        ParseResult<Statement> result = javaParser.parse(STATEMENT, provider("switch(x){case 3,4,5: ;}"));
        assertProblems(
                result,
                "(line 1,col 11) Only one label allowed in a switch-case. Pay attention that this feature is supported starting from 'JAVA_7' language level. If you need that feature the language level must be configured in the configuration before parsing the source files.");
    }
}