1/* 2 * Copyright (C) 2007 The Guava Authors 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.google.common.collect.testing; 18 19import com.google.common.annotations.GwtCompatible; 20import com.google.common.collect.testing.SampleElements.Chars; 21 22import java.util.List; 23 24/** 25 * Generates {@code List<Character>} instances for test suites. 26 * 27 * @author Kevin Bourrillion 28 * @author Louis Wasserman 29 */ 30@GwtCompatible 31public abstract class TestCharacterListGenerator 32 implements TestListGenerator<Character> { 33 @Override 34 public SampleElements<Character> samples() { 35 return new Chars(); 36 } 37 38 @Override 39 public List<Character> create(Object... elements) { 40 Character[] array = new Character[elements.length]; 41 int i = 0; 42 for (Object e : elements) { 43 array[i++] = (Character) e; 44 } 45 return create(array); 46 } 47 48 /** 49 * Creates a new collection containing the given elements; implement this 50 * method instead of {@link #create(Object...)}. 51 */ 52 protected abstract List<Character> create(Character[] elements); 53 54 @Override 55 public Character[] createArray(int length) { 56 return new Character[length]; 57 } 58 59 /** Returns the original element list, unchanged. */ 60 @Override 61 public List<Character> order(List<Character> insertionOrder) { 62 return insertionOrder; 63 } 64} 65