| /* |
| * Copyright (C) 2010 The Guava Authors |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.google.common.collect.testing.testers; |
| |
| import static com.google.common.collect.testing.features.CollectionSize.ONE; |
| import static com.google.common.collect.testing.features.CollectionSize.SEVERAL; |
| import static com.google.common.collect.testing.features.CollectionSize.ZERO; |
| |
| import com.google.common.annotations.GwtCompatible; |
| import com.google.common.collect.testing.Helpers; |
| import com.google.common.collect.testing.features.CollectionSize; |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.NoSuchElementException; |
| import java.util.SortedSet; |
| import org.junit.Ignore; |
| |
| /** |
| * A generic JUnit test which tests operations on a SortedSet. Can't be invoked directly; please see |
| * {@code SortedSetTestSuiteBuilder}. |
| * |
| * @author Jesse Wilson |
| * @author Louis Wasserman |
| */ |
| @GwtCompatible |
| @Ignore // Affects only Android test runner, which respects JUnit 4 annotations on JUnit 3 tests. |
| public class SortedSetNavigationTester<E> extends AbstractSetTester<E> { |
| |
| private SortedSet<E> sortedSet; |
| private List<E> values; |
| private E a; |
| private E b; |
| private E c; |
| |
| @Override |
| public void setUp() throws Exception { |
| super.setUp(); |
| sortedSet = (SortedSet<E>) getSet(); |
| values = |
| Helpers.copyToList( |
| getSubjectGenerator() |
| .getSampleElements(getSubjectGenerator().getCollectionSize().getNumElements())); |
| Collections.sort(values, sortedSet.comparator()); |
| |
| // some tests assume SEVERAL == 3 |
| if (values.size() >= 1) { |
| a = values.get(0); |
| if (values.size() >= 3) { |
| b = values.get(1); |
| c = values.get(2); |
| } |
| } |
| } |
| |
| @CollectionSize.Require(ZERO) |
| public void testEmptySetFirst() { |
| try { |
| sortedSet.first(); |
| fail(); |
| } catch (NoSuchElementException e) { |
| } |
| } |
| |
| @CollectionSize.Require(ZERO) |
| public void testEmptySetLast() { |
| try { |
| sortedSet.last(); |
| fail(); |
| } catch (NoSuchElementException e) { |
| } |
| } |
| |
| @CollectionSize.Require(ONE) |
| public void testSingletonSetFirst() { |
| assertEquals(a, sortedSet.first()); |
| } |
| |
| @CollectionSize.Require(ONE) |
| public void testSingletonSetLast() { |
| assertEquals(a, sortedSet.last()); |
| } |
| |
| @CollectionSize.Require(SEVERAL) |
| public void testFirst() { |
| assertEquals(a, sortedSet.first()); |
| } |
| |
| @CollectionSize.Require(SEVERAL) |
| public void testLast() { |
| assertEquals(c, sortedSet.last()); |
| } |
| } |