Java
75 строк · 3.0 Кб
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
17package com.google.common.collect.testing.testers;
18
19import static com.google.common.collect.testing.features.CollectionFeature.ALLOWS_NULL_VALUES;
20import static com.google.common.collect.testing.features.CollectionFeature.KNOWN_ORDER;
21import static com.google.common.collect.testing.features.CollectionFeature.NON_STANDARD_TOSTRING;
22import static com.google.common.collect.testing.features.CollectionSize.ONE;
23import static com.google.common.collect.testing.features.CollectionSize.SEVERAL;
24import static com.google.common.collect.testing.features.CollectionSize.ZERO;
25
26import com.google.common.annotations.GwtCompatible;
27import com.google.common.collect.testing.AbstractCollectionTester;
28import com.google.common.collect.testing.Helpers;
29import com.google.common.collect.testing.features.CollectionFeature;
30import com.google.common.collect.testing.features.CollectionSize;
31import 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@SuppressWarnings("JUnit4ClassUsedInJUnit3")
42public class CollectionToStringTester<E> extends AbstractCollectionTester<E> {
43public void testToString_minimal() {
44assertNotNull("toString() should not return null", collection.toString());
45}
46
47@CollectionSize.Require(ZERO)
48@CollectionFeature.Require(absent = NON_STANDARD_TOSTRING)
49public void testToString_size0() {
50assertEquals("emptyCollection.toString should return []", "[]", collection.toString());
51}
52
53@CollectionSize.Require(ONE)
54@CollectionFeature.Require(absent = NON_STANDARD_TOSTRING)
55public void testToString_size1() {
56assertEquals(
57"size1Collection.toString should return [{element}]",
58"[" + e0() + "]",
59collection.toString());
60}
61
62@CollectionSize.Require(SEVERAL)
63@CollectionFeature.Require(value = KNOWN_ORDER, absent = NON_STANDARD_TOSTRING)
64public void testToString_sizeSeveral() {
65String expected = Helpers.copyToList(getOrderedElements()).toString();
66assertEquals("collection.toString() incorrect", expected, collection.toString());
67}
68
69@CollectionSize.Require(absent = ZERO)
70@CollectionFeature.Require(ALLOWS_NULL_VALUES)
71public void testToString_null() {
72initCollectionWithNullElement();
73testToString_minimal();
74}
75}
76