com.google.errorprone.bugpatterns.testdata.ObjectToStringNegativeCases.java Source code

Introduction

Here is the source code for com.google.errorprone.bugpatterns.testdata.ObjectToStringNegativeCases.java

Source

/*
 * Copyright 2018 The Error Prone Authors.
 *
 * 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.google.errorprone.bugpatterns.testdata;

import org.joda.time.Duration;

/** @author bhagwani@google.com (Sumit Bhagwani) */
public class ObjectToStringNegativeCases {

    public static final class FinalObjectClassWithoutToString {
    }

    public static class NonFinalObjectClassWithoutToString {
    }

    public static final class FinalObjectClassWithToString {

        @Override
        public String toString() {
            return "hakuna";
        }
    }

    public static class NonFinalObjectClassWithToString {

        @Override
        public String toString() {
            return "matata";
        }
    }

    public void log(Object o) {
        System.out.println(o.toString());
    }

    void directToStringCalls() {
        NonFinalObjectClassWithoutToString nonFinalObjectClassWithoutToString = new NonFinalObjectClassWithoutToString();
        System.out.println(nonFinalObjectClassWithoutToString.toString());

        FinalObjectClassWithToString finalObjectClassWithToString = new FinalObjectClassWithToString();
        System.out.println(finalObjectClassWithToString.toString());

        NonFinalObjectClassWithToString nonFinalObjectClassWithToString = new NonFinalObjectClassWithToString();
        System.out.println(nonFinalObjectClassWithToString.toString());
    }

    void callsTologMethod() {
        FinalObjectClassWithoutToString finalObjectClassWithoutToString = new FinalObjectClassWithoutToString();
        log(finalObjectClassWithoutToString);

        NonFinalObjectClassWithoutToString nonFinalObjectClassWithoutToString = new NonFinalObjectClassWithoutToString();
        log(nonFinalObjectClassWithoutToString);

        FinalObjectClassWithToString finalObjectClassWithToString = new FinalObjectClassWithToString();
        log(finalObjectClassWithToString);

        NonFinalObjectClassWithToString nonFinalObjectClassWithToString = new NonFinalObjectClassWithToString();
        log(nonFinalObjectClassWithToString);
    }

    public void overridePresentInAbstractClassInHierarchy(Duration durationArg) {
        String unusedString = Duration.standardSeconds(86400).toString();
        System.out.println("test joda string " + Duration.standardSeconds(86400));

        unusedString = durationArg.toString();
        System.out.println("test joda string " + durationArg);
    }
}