com.google.gwt.emultest.java.util.LinkedHashSetTest.java Source code

Introduction

Here is the source code for com.google.gwt.emultest.java.util.LinkedHashSetTest.java

Source

/*
 * Copyright 2013 Google Inc.
 * 
 * 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.gwt.emultest.java.util;

import org.apache.commons.collections.TestSet;

import java.util.LinkedHashSet;
import java.util.Set;

/**
 * Tests <code>LinkedHashSet</code>.
 */
public class LinkedHashSetTest extends TestSet {

    private static final String VALUE_1 = "val1";
    private static final String VALUE_2 = "val2";
    private static final String VALUE_3 = "val3";
    private static final String VALUE_4 = "val4";

    /**
     * Check the state of a newly constructed, empty LinkedHashSet.
     * 
     * @param hashSet
     */
    private static void checkEmptyLinkedHashSetAssumptions(LinkedHashSet<?> hashSet) {
        assertNotNull(hashSet);
        assertTrue(hashSet.isEmpty());
    }

    public LinkedHashSetTest() {
        super("LinkedHashSet");
    }

    @Override
    public String getModuleName() {
        return "com.google.gwt.emultest.EmulSuite";
    }

    /*
     * Test method for 'java.util.LinkedHashSet.clone()'
     */
    @SuppressWarnings("unchecked")
    public void testClone() {
        LinkedHashSet<String> srcSet = new LinkedHashSet<String>();
        checkEmptyLinkedHashSetAssumptions(srcSet);

        // Check empty clone behavior
        LinkedHashSet<String> dstSet = (LinkedHashSet<String>) srcSet.clone();
        assertNotNull(dstSet);
        assertEquals(dstSet.size(), srcSet.size());
        assertEquals(dstSet.toArray(), srcSet.toArray());

        // Check non-empty clone behavior
        srcSet.add(VALUE_1);
        srcSet.add(VALUE_2);
        srcSet.add(VALUE_3);
        srcSet.add(VALUE_4);
        dstSet = (LinkedHashSet<String>) srcSet.clone();
        assertNotNull(dstSet);
        assertEquals(dstSet.size(), srcSet.size());
        assertEquals(dstSet.toArray(), srcSet.toArray());
    }

    @Override
    protected Set<?> makeEmptySet() {
        return new LinkedHashSet<Object>();
    }
}