1 /* 2 * Copyright (C) 2008 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 17 package com.google.common.collect.testing; 18 19 import com.google.common.annotations.GwtCompatible; 20 import com.google.common.collect.testing.SampleElements.Strings; 21 22 import java.util.List; 23 import java.util.Queue; 24 25 /** 26 * Create queue of strings for tests. 27 * 28 * @author Jared Levy 29 */ 30 @GwtCompatible 31 public abstract class TestStringQueueGenerator 32 implements TestQueueGenerator<String> 33 { 34 @Override samples()35 public SampleElements<String> samples() { 36 return new Strings(); 37 } 38 39 @Override create(Object... elements)40 public Queue<String> create(Object... elements) { 41 String[] array = new String[elements.length]; 42 int i = 0; 43 for (Object e : elements) { 44 array[i++] = (String) e; 45 } 46 return create(array); 47 } 48 create(String[] elements)49 protected abstract Queue<String> create(String[] elements); 50 51 @Override createArray(int length)52 public String[] createArray(int length) { 53 return new String[length]; 54 } 55 56 /** Returns the original element list, unchanged. */ 57 @Override order(List<String> insertionOrder)58 public List<String> order(List<String> insertionOrder) { 59 return insertionOrder; 60 } 61 } 62