javaparser-symbol-solver-testing/src/test/java/com/github/javaparser/symbolsolver/resolution/MethodsResolutionLogicTest.java

/*
 * Copyright 2016 Federico Tomassetti
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.github.javaparser.symbolsolver.resolution;

import com.github.javaparser.resolution.MethodUsage;
import com.github.javaparser.resolution.types.ResolvedReferenceType;
import com.github.javaparser.symbolsolver.javaparsermodel.declarations.JavaParserClassDeclaration;
import com.github.javaparser.symbolsolver.model.resolution.TypeSolver;
import com.github.javaparser.symbolsolver.reflectionmodel.ReflectionFactory;
import com.github.javaparser.symbolsolver.resolution.typesolvers.CombinedTypeSolver;
import com.github.javaparser.symbolsolver.resolution.typesolvers.JavaParserTypeSolver;
import com.github.javaparser.symbolsolver.resolution.typesolvers.ReflectionTypeSolver;
import com.github.javaparser.symbolsolver.utils.LeanParserConfiguration;
import com.google.common.collect.ImmutableList;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

import java.nio.file.Path;

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

class MethodsResolutionLogicTest extends AbstractResolutionTest {

    private TypeSolver typeSolver;

    @BeforeEach
    void setup() {
        Path srcNewCode = adaptPath("src/test/test_sourcecode/javaparser_new_src/javaparser-core");
        CombinedTypeSolver combinedTypeSolverNewCode = new CombinedTypeSolver();
        combinedTypeSolverNewCode.add(new ReflectionTypeSolver());
        combinedTypeSolverNewCode.add(new JavaParserTypeSolver(srcNewCode, new LeanParserConfiguration()));
        combinedTypeSolverNewCode.add(new JavaParserTypeSolver(adaptPath("src/test/test_sourcecode/javaparser_new_src/javaparser-generated-sources"), new LeanParserConfiguration()));
        typeSolver = combinedTypeSolverNewCode;
    }

    @Test
    void compatibilityShouldConsiderAlsoTypeVariablesNegative() {
        JavaParserClassDeclaration constructorDeclaration = (JavaParserClassDeclaration) typeSolver.solveType("com.github.javaparser.ast.body.ConstructorDeclaration");

        ResolvedReferenceType stringType = (ResolvedReferenceType) ReflectionFactory.typeUsageFor(String.class, typeSolver);
        ResolvedReferenceType rawClassType = (ResolvedReferenceType) ReflectionFactory.typeUsageFor(Class.class, typeSolver);
        assertEquals(true, rawClassType.isRawType());
        ResolvedReferenceType classOfStringType = (ResolvedReferenceType) rawClassType.replaceTypeVariables(rawClassType.getTypeDeclaration().getTypeParameters().get(0), stringType);
        MethodUsage mu = constructorDeclaration.getAllMethods().stream().filter(m -> m.getDeclaration().getSignature().equals("isThrows(java.lang.Class<? extends java.lang.Throwable>)")).findFirst().get();

        assertEquals(false, MethodResolutionLogic.isApplicable(mu, "isThrows", ImmutableList.of(classOfStringType), typeSolver));
    }

    @Test
    void compatibilityShouldConsiderAlsoTypeVariablesRaw() {
        JavaParserClassDeclaration constructorDeclaration = (JavaParserClassDeclaration) typeSolver.solveType("com.github.javaparser.ast.body.ConstructorDeclaration");

        ResolvedReferenceType rawClassType = (ResolvedReferenceType) ReflectionFactory.typeUsageFor(Class.class, typeSolver);
        MethodUsage mu = constructorDeclaration.getAllMethods().stream().filter(m -> m.getDeclaration().getSignature().equals("isThrows(java.lang.Class<? extends java.lang.Throwable>)")).findFirst().get();

        assertEquals(true, MethodResolutionLogic.isApplicable(mu, "isThrows", ImmutableList.of(rawClassType), typeSolver));
    }

    @Test
    void compatibilityShouldConsiderAlsoTypeVariablesPositive() {
        JavaParserClassDeclaration constructorDeclaration = (JavaParserClassDeclaration) typeSolver.solveType("com.github.javaparser.ast.body.ConstructorDeclaration");

        ResolvedReferenceType runtimeException = (ResolvedReferenceType) ReflectionFactory.typeUsageFor(RuntimeException.class, typeSolver);
        ResolvedReferenceType rawClassType = (ResolvedReferenceType) ReflectionFactory.typeUsageFor(Class.class, typeSolver);
        ResolvedReferenceType classOfRuntimeType = (ResolvedReferenceType) rawClassType.replaceTypeVariables(rawClassType.getTypeDeclaration().getTypeParameters().get(0), runtimeException);
        MethodUsage mu = constructorDeclaration.getAllMethods().stream().filter(m -> m.getDeclaration().getSignature().equals("isThrows(java.lang.Class<? extends java.lang.Throwable>)")).findFirst().get();

        assertEquals(true, MethodResolutionLogic.isApplicable(mu, "isThrows", ImmutableList.of(classOfRuntimeType), typeSolver));
    }
}