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 17 package com.google.common.collect.testing.testers; 18 19 import static com.google.common.collect.testing.features.CollectionFeature.KNOWN_ORDER; 20 import static com.google.common.collect.testing.features.CollectionFeature.NON_STANDARD_TOSTRING; 21 import static com.google.common.collect.testing.features.CollectionSize.ONE; 22 import static com.google.common.collect.testing.features.CollectionSize.SEVERAL; 23 import static com.google.common.collect.testing.features.CollectionSize.ZERO; 24 25 import com.google.common.collect.testing.AbstractCollectionTester; 26 import com.google.common.collect.testing.Helpers; 27 import com.google.common.collect.testing.features.CollectionFeature; 28 import com.google.common.collect.testing.features.CollectionSize; 29 30 /** 31 * A generic JUnit test which tests {@code toString()} operations on a 32 * collection. Can't be invoked directly; please see 33 * {@link com.google.common.collect.testing.CollectionTestSuiteBuilder}. 34 * 35 * <p>This class is GWT compatible. 36 * 37 * @author Kevin Bourrillion 38 */ 39 public class CollectionToStringTester<E> extends AbstractCollectionTester<E> { testToString_minimal()40 public void testToString_minimal() { 41 assertNotNull("toString() should not return null", 42 collection.toString()); 43 } 44 45 @CollectionSize.Require(ZERO) 46 @CollectionFeature.Require(absent = NON_STANDARD_TOSTRING) testToString_size0()47 public void testToString_size0() { 48 assertEquals("emptyCollection.toString should return []", "[]", 49 collection.toString()); 50 } 51 52 @CollectionSize.Require(ONE) 53 @CollectionFeature.Require(absent = NON_STANDARD_TOSTRING) testToString_size1()54 public void testToString_size1() { 55 assertEquals("size1Collection.toString should return [{element}]", 56 "[" + samples.e0 + "]", collection.toString()); 57 } 58 59 @CollectionSize.Require(SEVERAL) 60 @CollectionFeature.Require( 61 value = KNOWN_ORDER, absent = NON_STANDARD_TOSTRING) testToString_sizeSeveral()62 public void testToString_sizeSeveral() { 63 String expected = Helpers.copyToList(getOrderedElements()).toString(); 64 assertEquals("collection.toString() incorrect", 65 expected, collection.toString()); 66 } 67 } 68