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.ALLOWS_NULL_VALUES; 20 import static com.google.common.collect.testing.features.CollectionFeature.KNOWN_ORDER; 21 import static com.google.common.collect.testing.features.CollectionFeature.NON_STANDARD_TOSTRING; 22 import static com.google.common.collect.testing.features.CollectionSize.ONE; 23 import static com.google.common.collect.testing.features.CollectionSize.SEVERAL; 24 import static com.google.common.collect.testing.features.CollectionSize.ZERO; 25 26 import com.google.common.annotations.GwtCompatible; 27 import com.google.common.collect.testing.AbstractCollectionTester; 28 import com.google.common.collect.testing.Helpers; 29 import com.google.common.collect.testing.features.CollectionFeature; 30 import com.google.common.collect.testing.features.CollectionSize; 31 import org.junit.Ignore; 32 33 /** 34 * A generic JUnit test which tests {@code toString()} operations on a collection. Can't be invoked 35 * directly; please see {@link com.google.common.collect.testing.CollectionTestSuiteBuilder}. 36 * 37 * @author Kevin Bourrillion 38 */ 39 @GwtCompatible 40 @Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests. 41 public class CollectionToStringTester<E> extends AbstractCollectionTester<E> { testToString_minimal()42 public void testToString_minimal() { 43 assertNotNull("toString() should not return null", collection.toString()); 44 } 45 46 @CollectionSize.Require(ZERO) 47 @CollectionFeature.Require(absent = NON_STANDARD_TOSTRING) testToString_size0()48 public void testToString_size0() { 49 assertEquals("emptyCollection.toString should return []", "[]", collection.toString()); 50 } 51 52 @CollectionSize.Require(ONE) 53 @CollectionFeature.Require(absent = NON_STANDARD_TOSTRING) testToString_size1()54 public void testToString_size1() { 55 assertEquals( 56 "size1Collection.toString should return [{element}]", 57 "[" + e0() + "]", 58 collection.toString()); 59 } 60 61 @CollectionSize.Require(SEVERAL) 62 @CollectionFeature.Require(value = KNOWN_ORDER, absent = NON_STANDARD_TOSTRING) testToString_sizeSeveral()63 public void testToString_sizeSeveral() { 64 String expected = Helpers.copyToList(getOrderedElements()).toString(); 65 assertEquals("collection.toString() incorrect", expected, collection.toString()); 66 } 67 68 @CollectionSize.Require(absent = ZERO) 69 @CollectionFeature.Require(ALLOWS_NULL_VALUES) testToString_null()70 public void testToString_null() { 71 initCollectionWithNullElement(); 72 testToString_minimal(); 73 } 74 } 75