1 /* 2 * Copyright (C) 2011 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; 18 19 import static com.google.common.base.Preconditions.checkArgument; 20 import static com.google.common.collect.DiscreteDomains.integers; 21 22 import com.google.common.collect.testing.SampleElements; 23 import com.google.common.collect.testing.SetTestSuiteBuilder; 24 import com.google.common.collect.testing.TestSetGenerator; 25 import com.google.common.collect.testing.features.CollectionFeature; 26 import com.google.common.collect.testing.features.CollectionSize; 27 import com.google.common.collect.testing.testers.SetHashCodeTester; 28 29 import junit.framework.Test; 30 import junit.framework.TestCase; 31 import junit.framework.TestSuite; 32 33 import java.util.Collections; 34 import java.util.List; 35 import java.util.Set; 36 import java.util.SortedSet; 37 import java.util.TreeSet; 38 39 /** 40 * @author Gregory Kick 41 */ 42 public class ContiguousSetNonGwtTest extends TestCase { 43 public static class BuiltTests extends TestCase { 44 public static Test suite() { 45 TestSuite suite = new TestSuite(); 46 47 suite.addTest( 48 SetTestSuiteBuilder 49 .using( 50 new TestIntegerSetGenerator() { 51 @Override 52 protected Set<Integer> create(Integer[] elements) { 53 // reject duplicates at creation, just so that I can use 54 // that SetFeature below, which stops a test from running 55 // that doesn't work. hack! 56 SortedSet<Integer> set = new TreeSet<Integer>(); 57 Collections.addAll(set, elements); 58 checkArgument(set.size() == elements.length); 59 return Ranges.closed(set.first(), set.last()).asSet(integers()); 60 } 61 }) 62 .withFeatures( 63 CollectionSize.ONE, 64 CollectionSize.SEVERAL, 65 CollectionFeature.KNOWN_ORDER, 66 CollectionFeature.ALLOWS_NULL_QUERIES, 67 CollectionFeature.NON_STANDARD_TOSTRING, 68 CollectionFeature.RESTRICTS_ELEMENTS, 69 CollectionFeature.REJECTS_DUPLICATES_AT_CREATION) 70 .suppressing(SetHashCodeTester.getHashCodeMethods()) 71 .named("DiscreteRange.asSet, closed") 72 .createTestSuite()); 73 74 return suite; 75 } 76 } 77 78 abstract static class TestIntegerSetGenerator implements TestSetGenerator<Integer> { 79 @Override public SampleElements<Integer> samples() { 80 return new SampleElements<Integer>(1, 2, 3, 4, 5); 81 } 82 83 @Override public Set<Integer> create(Object... elements) { 84 Integer[] array = new Integer[elements.length]; 85 int i = 0; 86 for (Object e : elements) { 87 array[i++] = (Integer) e; 88 } 89 return create(array); 90 } 91 92 protected abstract Set<Integer> create(Integer[] elements); 93 94 @Override public Integer[] createArray(int length) { 95 return new Integer[length]; 96 } 97 98 @Override public List<Integer> order(List<Integer> insertionOrder) { 99 return Ordering.natural().sortedCopy(insertionOrder); 100 } 101 } 102 103 public void testNothing() { 104 /* 105 * It's a warning if a TestCase subclass contains no tests, so we add one. 106 * Alternatively, we could stop extending TestCase, but I worry that someone 107 * will add a test in the future and not realize that it's being ignored. 108 */ 109 } 110 } 111
