Issue1364Test.java

/*
 * Copyright (C) 2015-2016 Federico Tomassetti
 * Copyright (C) 2017-2024 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.symbolsolver;

import static org.junit.jupiter.api.Assertions.*;

import com.github.javaparser.*;
import com.github.javaparser.ast.CompilationUnit;
import com.github.javaparser.ast.body.ClassOrInterfaceDeclaration;
import com.github.javaparser.ast.expr.MethodCallExpr;
import com.github.javaparser.ast.expr.SimpleName;
import com.github.javaparser.resolution.TypeSolver;
import com.github.javaparser.resolution.UnsolvedSymbolException;
import com.github.javaparser.resolution.declarations.ResolvedReferenceTypeDeclaration;
import com.github.javaparser.resolution.model.SymbolReference;
import com.github.javaparser.symbolsolver.javaparsermodel.declarations.JavaParserClassDeclaration;
import com.github.javaparser.symbolsolver.resolution.AbstractResolutionTest;
import java.time.Duration;
import java.util.List;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

/**
 * @author Dominik Hardtke
 * @since 02/02/2018
 */
class Issue1364Test extends AbstractResolutionTest {
    private JavaParser javaParser;

    @BeforeEach
    void setup() {
        ClassOrInterfaceDeclaration fakeObject = new ClassOrInterfaceDeclaration();
        fakeObject.setName(new SimpleName("java.lang.Object"));

        TypeSolver typeSolver = new TypeSolver() {
            @Override
            public TypeSolver getParent() {
                return null;
            }

            @Override
            public void setParent(TypeSolver parent) {}

            @Override
            public SymbolReference<ResolvedReferenceTypeDeclaration> tryToSolveType(String name) {
                if ("java.lang.Object".equals(name)) {
                    // custom handling
                    return SymbolReference.solved(new JavaParserClassDeclaration(fakeObject, this));
                }

                return SymbolReference.unsolved();
            }
        };

        ParserConfiguration config = new ParserConfiguration();
        config.setSymbolResolver(new JavaSymbolSolver(typeSolver));
        javaParser = new JavaParser(config);
    }

    @Test
    void resolveSubClassOfObject() {
        assertTimeoutPreemptively(Duration.ofMillis(1000L), () -> {
            String code = String.join(
                    System.lineSeparator(),
                    "package graph;",
                    "public class Vertex {",
                    "    public static void main(String[] args) {",
                    "        System.out.println();",
                    "    }",
                    "}");
            ParseResult<CompilationUnit> parseResult =
                    javaParser.parse(ParseStart.COMPILATION_UNIT, Providers.provider(code));
            assertTrue(parseResult.isSuccessful());
            assertTrue(parseResult.getResult().isPresent());
            List<MethodCallExpr> methodCallExprs = parseResult.getResult().get().findAll(MethodCallExpr.class);
            assertEquals(1, methodCallExprs.size());
            try {
                methodCallExprs.get(0).calculateResolvedType();
                fail("An UnsolvedSymbolException should be thrown");
            } catch (UnsolvedSymbolException ignored) {
            }
        });
    }
}