1 /* 2 * Copyright (C) 2012 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.io; 18 19 /** 20 * Interface for a supplier of streams that can report whether a stream was opened and whether that 21 * stream was closed. Intended for use in a test where only a single stream should be opened and 22 * possibly closed. 23 * 24 * @author Colin Decker 25 */ 26 public interface TestStreamSupplier { 27 28 /** Returns whether or not a new stream was opened. */ wasStreamOpened()29 boolean wasStreamOpened(); 30 31 /** Returns whether or not an open stream was closed. */ wasStreamClosed()32 boolean wasStreamClosed(); 33 } 34