/*
 * Copyright (C) 2007-2010 Júlio Vilmar Gesser.
 * Copyright (C) 2011, 2013-2019 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.stmt;

import com.github.javaparser.ast.CompilationUnit;
import com.github.javaparser.ast.expr.BinaryExpr;
import org.junit.jupiter.api.Test;

import static com.github.javaparser.ParserConfiguration.LanguageLevel.JAVA_12;
import static com.github.javaparser.utils.TestParser.parseCompilationUnit;
import static com.github.javaparser.utils.TestParser.parseStatement;
import static com.github.javaparser.utils.TestUtils.assertEqualsStringIgnoringEol;
import static org.junit.jupiter.api.Assertions.assertEquals;

class YieldStmtTest {
    @Test
    void yield() {
        YieldStmt statement = parseStatement("yield 12*12;").asYieldStmt();
        assertEquals(BinaryExpr.class, statement.getExpression().getClass());
    }

    @Test
    void threadYieldShouldNotBreak() {
        parseStatement("Thread.yield();").asExpressionStmt().getExpression().asMethodCallExpr();
    }

    @Test
    void keywordShouldNotInterfereWithIdentifiers() {
        CompilationUnit compilationUnit = parseCompilationUnit(JAVA_12, "class yield { yield yield(yield yield){yield();} }");
        assertEqualsStringIgnoringEol("class yield {\n" +
                "\n" +
                "    yield yield(yield yield) {\n" +
                "        yield();\n" +
                "    }\n" +
                "}\n", compilationUnit.toString());
    }
}
