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Java example source code file (ReflectionToStringBuilderExcludeTest.java)

This example Java source code file (ReflectionToStringBuilderExcludeTest.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

arraylist, collection, hello, not_secret_field, not_secret_value, reflectiontostringbuilderexcludetest, secret_field, string, suppresswarnings, test, testfixture, util, world

The ReflectionToStringBuilderExcludeTest.java Java example source code

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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 org.apache.commons.lang3.builder;

import java.util.ArrayList;
import java.util.Collection;
import java.util.List;

import org.junit.Assert;

import org.apache.commons.lang3.ArrayUtils;
import org.junit.Test;

/**
 */
public class ReflectionToStringBuilderExcludeTest {

    class TestFixture {
        @SuppressWarnings("unused")
        private final String secretField = SECRET_VALUE;

        @SuppressWarnings("unused")
        private final String showField = NOT_SECRET_VALUE;
    }

    private static final String NOT_SECRET_FIELD = "showField";

    private static final String NOT_SECRET_VALUE = "Hello World!";

    private static final String SECRET_FIELD = "secretField";

    private static final String SECRET_VALUE = "secret value";

    @Test
    public void test_toStringExclude() {
        final String toString = ReflectionToStringBuilder.toStringExclude(new TestFixture(), SECRET_FIELD);
        this.validateSecretFieldAbsent(toString);
    }

    @Test
    public void test_toStringExcludeArray() {
        final String toString = ReflectionToStringBuilder.toStringExclude(new TestFixture(), new String[]{SECRET_FIELD});
        this.validateSecretFieldAbsent(toString);
    }

    @Test
    public void test_toStringExcludeArrayWithNull() {
        final String toString = ReflectionToStringBuilder.toStringExclude(new TestFixture(), new String[]{null});
        this.validateSecretFieldPresent(toString);
    }

    @Test
    public void test_toStringExcludeArrayWithNulls() {
        final String toString = ReflectionToStringBuilder.toStringExclude(new TestFixture(), new String[]{null, null});
        this.validateSecretFieldPresent(toString);
    }

    @Test
    public void test_toStringExcludeCollection() {
        final List<String> excludeList = new ArrayList();
        excludeList.add(SECRET_FIELD);
        final String toString = ReflectionToStringBuilder.toStringExclude(new TestFixture(), excludeList);
        this.validateSecretFieldAbsent(toString);
    }

    @Test
    public void test_toStringExcludeCollectionWithNull() {
        final List<String> excludeList = new ArrayList();
        excludeList.add(null);
        final String toString = ReflectionToStringBuilder.toStringExclude(new TestFixture(), excludeList);
        this.validateSecretFieldPresent(toString);
    }

    @Test
    public void test_toStringExcludeCollectionWithNulls() {
        final List<String> excludeList = new ArrayList();
        excludeList.add(null);
        excludeList.add(null);
        final String toString = ReflectionToStringBuilder.toStringExclude(new TestFixture(), excludeList);
        this.validateSecretFieldPresent(toString);
    }

    @Test
    public void test_toStringExcludeEmptyArray() {
        final String toString = ReflectionToStringBuilder.toStringExclude(new TestFixture(), ArrayUtils.EMPTY_STRING_ARRAY);
        this.validateSecretFieldPresent(toString);
    }

    @Test
    public void test_toStringExcludeEmptyCollection() {
        final String toString = ReflectionToStringBuilder.toStringExclude(new TestFixture(), new ArrayList<String>());
        this.validateSecretFieldPresent(toString);
    }

    @Test
    public void test_toStringExcludeNullArray() {
        final String toString = ReflectionToStringBuilder.toStringExclude(new TestFixture(), (String[]) null);
        this.validateSecretFieldPresent(toString);
    }

    @Test
    public void test_toStringExcludeNullCollection() {
        final String toString = ReflectionToStringBuilder.toStringExclude(new TestFixture(), (Collection<String>) null);
        this.validateSecretFieldPresent(toString);
    }

    private void validateNonSecretField(final String toString) {
        Assert.assertTrue(toString.indexOf(NOT_SECRET_FIELD) > ArrayUtils.INDEX_NOT_FOUND);
        Assert.assertTrue(toString.indexOf(NOT_SECRET_VALUE) > ArrayUtils.INDEX_NOT_FOUND);
    }

    private void validateSecretFieldAbsent(final String toString) {
        Assert.assertEquals(ArrayUtils.INDEX_NOT_FOUND, toString.indexOf(SECRET_VALUE));
        this.validateNonSecretField(toString);
    }

    private void validateSecretFieldPresent(final String toString) {
        Assert.assertTrue(toString.indexOf(SECRET_VALUE) > 0);
        this.validateNonSecretField(toString);
    }
}

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