| /* |
| * Copyright (C) 2007 The Guava Authors |
| * |
| * 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.common.collect.testing; |
| |
| import com.google.common.annotations.GwtCompatible; |
| import com.google.common.collect.testing.SampleElements.Strings; |
| import java.util.List; |
| import java.util.Set; |
| |
| /** |
| * Create string sets for collection tests. |
| * |
| * @author Kevin Bourrillion |
| */ |
| @GwtCompatible |
| public abstract class TestStringSetGenerator implements TestSetGenerator<String> { |
| @Override |
| public SampleElements<String> samples() { |
| return new Strings(); |
| } |
| |
| @Override |
| public Set<String> create(Object... elements) { |
| String[] array = new String[elements.length]; |
| int i = 0; |
| for (Object e : elements) { |
| array[i++] = (String) e; |
| } |
| return create(array); |
| } |
| |
| protected abstract Set<String> create(String[] elements); |
| |
| @Override |
| public String[] createArray(int length) { |
| return new String[length]; |
| } |
| |
| /** |
| * {@inheritDoc} |
| * |
| * <p>By default, returns the supplied elements in their given order; however, generators for |
| * containers with a known order other than insertion order must override this method. |
| * |
| * <p>Note: This default implementation is overkill (but valid) for an unordered container. An |
| * equally valid implementation for an unordered container is to throw an exception. The chosen |
| * implementation, however, has the advantage of working for insertion-ordered containers, as |
| * well. |
| */ |
| @Override |
| public List<String> order(List<String> insertionOrder) { |
| return insertionOrder; |
| } |
| } |