001/* 002 * Copyright (C) 2007 The Guava Authors 003 * 004 * Licensed under the Apache License, Version 2.0 (the "License"); 005 * you may not use this file except in compliance with the License. 006 * You may obtain a copy of the License at 007 * 008 * http://www.apache.org/licenses/LICENSE-2.0 009 * 010 * Unless required by applicable law or agreed to in writing, software 011 * distributed under the License is distributed on an "AS IS" BASIS, 012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 * See the License for the specific language governing permissions and 014 * limitations under the License. 015 */ 016 017package com.google.common.collect.testing; 018 019import com.google.common.annotations.GwtCompatible; 020import com.google.common.collect.testing.SampleElements.Chars; 021import java.util.List; 022 023/** 024 * Generates {@code List<Character>} instances for test suites. 025 * 026 * @author Kevin Bourrillion 027 * @author Louis Wasserman 028 */ 029@GwtCompatible 030public abstract class TestCharacterListGenerator implements TestListGenerator<Character> { 031 @Override 032 public SampleElements<Character> samples() { 033 return new Chars(); 034 } 035 036 @Override 037 public List<Character> create(Object... elements) { 038 Character[] array = new Character[elements.length]; 039 int i = 0; 040 for (Object e : elements) { 041 array[i++] = (Character) e; 042 } 043 return create(array); 044 } 045 046 /** 047 * Creates a new collection containing the given elements; implement this method instead of {@link 048 * #create(Object...)}. 049 */ 050 protected abstract List<Character> create(Character[] elements); 051 052 @Override 053 public Character[] createArray(int length) { 054 return new Character[length]; 055 } 056 057 /** Returns the original element list, unchanged. */ 058 @Override 059 public List<Character> order(List<Character> insertionOrder) { 060 return insertionOrder; 061 } 062}