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.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.REJECTS_DUPLICATES_AT_CREATION; 21 import static com.google.common.collect.testing.features.CollectionSize.ONE; 22 import static com.google.common.collect.testing.features.CollectionSize.ZERO; 23 24 import com.google.common.annotations.GwtCompatible; 25 import com.google.common.collect.testing.features.CollectionFeature; 26 import com.google.common.collect.testing.features.CollectionSize; 27 import java.util.Arrays; 28 import java.util.List; 29 import org.junit.Ignore; 30 31 /** 32 * A generic JUnit test which tests creation (typically through a constructor or static factory 33 * method) of a set. Can't be invoked directly; please see {@link 34 * com.google.common.collect.testing.SetTestSuiteBuilder}. 35 * 36 * @author Chris Povirk 37 */ 38 @GwtCompatible 39 @Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests. 40 public class SetCreationTester<E> extends AbstractSetTester<E> { 41 @CollectionFeature.Require(value = ALLOWS_NULL_VALUES, absent = REJECTS_DUPLICATES_AT_CREATION) 42 @CollectionSize.Require(absent = {ZERO, ONE}) testCreateWithDuplicates_nullDuplicatesNotRejected()43 public void testCreateWithDuplicates_nullDuplicatesNotRejected() { 44 E[] array = createArrayWithNullElement(); 45 array[0] = null; 46 collection = getSubjectGenerator().create(array); 47 48 List<E> expectedWithDuplicateRemoved = Arrays.asList(array).subList(1, getNumElements()); 49 expectContents(expectedWithDuplicateRemoved); 50 } 51 52 @CollectionFeature.Require(absent = REJECTS_DUPLICATES_AT_CREATION) 53 @CollectionSize.Require(absent = {ZERO, ONE}) testCreateWithDuplicates_nonNullDuplicatesNotRejected()54 public void testCreateWithDuplicates_nonNullDuplicatesNotRejected() { 55 E[] array = createSamplesArray(); 56 array[1] = e0(); 57 collection = getSubjectGenerator().create(array); 58 59 List<E> expectedWithDuplicateRemoved = Arrays.asList(array).subList(1, getNumElements()); 60 expectContents(expectedWithDuplicateRemoved); 61 } 62 63 @CollectionFeature.Require({ALLOWS_NULL_VALUES, REJECTS_DUPLICATES_AT_CREATION}) 64 @CollectionSize.Require(absent = {ZERO, ONE}) testCreateWithDuplicates_nullDuplicatesRejected()65 public void testCreateWithDuplicates_nullDuplicatesRejected() { 66 E[] array = createArrayWithNullElement(); 67 array[0] = null; 68 try { 69 collection = getSubjectGenerator().create(array); 70 fail("Should reject duplicate null elements at creation"); 71 } catch (IllegalArgumentException expected) { 72 } 73 } 74 75 @CollectionFeature.Require(REJECTS_DUPLICATES_AT_CREATION) 76 @CollectionSize.Require(absent = {ZERO, ONE}) testCreateWithDuplicates_nonNullDuplicatesRejected()77 public void testCreateWithDuplicates_nonNullDuplicatesRejected() { 78 E[] array = createSamplesArray(); 79 array[1] = e0(); 80 try { 81 collection = getSubjectGenerator().create(array); 82 fail("Should reject duplicate non-null elements at creation"); 83 } catch (IllegalArgumentException expected) { 84 } 85 } 86 } 87