1 |
dl |
1.1 |
/* |
2 |
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* Written by Doug Lea with assistance from members of JCP JSR-166 |
3 |
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* Expert Group and released to the public domain, as explained at |
4 |
jsr166 |
1.20 |
* http://creativecommons.org/publicdomain/zero/1.0/ |
5 |
dl |
1.1 |
*/ |
6 |
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7 |
jsr166 |
1.23 |
import java.util.Arrays; |
8 |
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import java.util.BitSet; |
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import java.util.Collection; |
10 |
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import java.util.Comparator; |
11 |
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import java.util.Iterator; |
12 |
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import java.util.NavigableSet; |
13 |
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import java.util.NoSuchElementException; |
14 |
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import java.util.Random; |
15 |
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import java.util.Set; |
16 |
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import java.util.SortedSet; |
17 |
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import java.util.concurrent.ConcurrentSkipListSet; |
18 |
dl |
1.1 |
|
19 |
jsr166 |
1.31 |
import junit.framework.Test; |
20 |
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import junit.framework.TestSuite; |
21 |
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22 |
dl |
1.1 |
public class ConcurrentSkipListSetTest extends JSR166TestCase { |
23 |
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public static void main(String[] args) { |
24 |
jsr166 |
1.38 |
main(suite(), args); |
25 |
dl |
1.1 |
} |
26 |
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public static Test suite() { |
27 |
jsr166 |
1.7 |
return new TestSuite(ConcurrentSkipListSetTest.class); |
28 |
dl |
1.1 |
} |
29 |
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30 |
jsr166 |
1.4 |
static class MyReverseComparator implements Comparator { |
31 |
dl |
1.1 |
public int compare(Object x, Object y) { |
32 |
jsr166 |
1.11 |
return ((Comparable)y).compareTo(x); |
33 |
dl |
1.1 |
} |
34 |
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} |
35 |
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36 |
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/** |
37 |
jsr166 |
1.28 |
* Returns a new set of given size containing consecutive |
38 |
dl |
1.1 |
* Integers 0 ... n. |
39 |
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*/ |
40 |
jsr166 |
1.18 |
private ConcurrentSkipListSet<Integer> populatedSet(int n) { |
41 |
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ConcurrentSkipListSet<Integer> q = |
42 |
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new ConcurrentSkipListSet<Integer>(); |
43 |
dl |
1.1 |
assertTrue(q.isEmpty()); |
44 |
jsr166 |
1.42 |
for (int i = n - 1; i >= 0; i -= 2) |
45 |
jsr166 |
1.7 |
assertTrue(q.add(new Integer(i))); |
46 |
jsr166 |
1.32 |
for (int i = (n & 1); i < n; i += 2) |
47 |
jsr166 |
1.7 |
assertTrue(q.add(new Integer(i))); |
48 |
dl |
1.1 |
assertFalse(q.isEmpty()); |
49 |
jsr166 |
1.7 |
assertEquals(n, q.size()); |
50 |
dl |
1.1 |
return q; |
51 |
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} |
52 |
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53 |
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/** |
54 |
jsr166 |
1.28 |
* Returns a new set of first 5 ints. |
55 |
dl |
1.1 |
*/ |
56 |
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private ConcurrentSkipListSet set5() { |
57 |
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ConcurrentSkipListSet q = new ConcurrentSkipListSet(); |
58 |
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assertTrue(q.isEmpty()); |
59 |
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q.add(one); |
60 |
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q.add(two); |
61 |
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q.add(three); |
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q.add(four); |
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q.add(five); |
64 |
jsr166 |
1.7 |
assertEquals(5, q.size()); |
65 |
dl |
1.1 |
return q; |
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} |
67 |
jsr166 |
1.4 |
|
68 |
dl |
1.1 |
/** |
69 |
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* A new set has unbounded capacity |
70 |
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*/ |
71 |
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public void testConstructor1() { |
72 |
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assertEquals(0, new ConcurrentSkipListSet().size()); |
73 |
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} |
74 |
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75 |
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/** |
76 |
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* Initializing from null Collection throws NPE |
77 |
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*/ |
78 |
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public void testConstructor3() { |
79 |
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try { |
80 |
jsr166 |
1.36 |
new ConcurrentSkipListSet((Collection)null); |
81 |
dl |
1.1 |
shouldThrow(); |
82 |
jsr166 |
1.8 |
} catch (NullPointerException success) {} |
83 |
dl |
1.1 |
} |
84 |
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85 |
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/** |
86 |
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* Initializing from Collection of null elements throws NPE |
87 |
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*/ |
88 |
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public void testConstructor4() { |
89 |
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try { |
90 |
jsr166 |
1.39 |
new ConcurrentSkipListSet(Arrays.asList(new Integer[SIZE])); |
91 |
dl |
1.1 |
shouldThrow(); |
92 |
jsr166 |
1.8 |
} catch (NullPointerException success) {} |
93 |
dl |
1.1 |
} |
94 |
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95 |
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/** |
96 |
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* Initializing from Collection with some null elements throws NPE |
97 |
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*/ |
98 |
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public void testConstructor5() { |
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jsr166 |
1.39 |
Integer[] ints = new Integer[SIZE]; |
100 |
jsr166 |
1.40 |
for (int i = 0; i < SIZE - 1; ++i) |
101 |
jsr166 |
1.39 |
ints[i] = new Integer(i); |
102 |
dl |
1.1 |
try { |
103 |
jsr166 |
1.36 |
new ConcurrentSkipListSet(Arrays.asList(ints)); |
104 |
dl |
1.1 |
shouldThrow(); |
105 |
jsr166 |
1.8 |
} catch (NullPointerException success) {} |
106 |
dl |
1.1 |
} |
107 |
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108 |
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/** |
109 |
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* Set contains all elements of collection used to initialize |
110 |
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*/ |
111 |
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public void testConstructor6() { |
112 |
jsr166 |
1.8 |
Integer[] ints = new Integer[SIZE]; |
113 |
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for (int i = 0; i < SIZE; ++i) |
114 |
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ints[i] = new Integer(i); |
115 |
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ConcurrentSkipListSet q = new ConcurrentSkipListSet(Arrays.asList(ints)); |
116 |
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for (int i = 0; i < SIZE; ++i) |
117 |
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assertEquals(ints[i], q.pollFirst()); |
118 |
dl |
1.1 |
} |
119 |
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120 |
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/** |
121 |
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* The comparator used in constructor is used |
122 |
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*/ |
123 |
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public void testConstructor7() { |
124 |
jsr166 |
1.9 |
MyReverseComparator cmp = new MyReverseComparator(); |
125 |
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ConcurrentSkipListSet q = new ConcurrentSkipListSet(cmp); |
126 |
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assertEquals(cmp, q.comparator()); |
127 |
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Integer[] ints = new Integer[SIZE]; |
128 |
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for (int i = 0; i < SIZE; ++i) |
129 |
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ints[i] = new Integer(i); |
130 |
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q.addAll(Arrays.asList(ints)); |
131 |
jsr166 |
1.40 |
for (int i = SIZE - 1; i >= 0; --i) |
132 |
jsr166 |
1.9 |
assertEquals(ints[i], q.pollFirst()); |
133 |
dl |
1.1 |
} |
134 |
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135 |
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/** |
136 |
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* isEmpty is true before add, false after |
137 |
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*/ |
138 |
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public void testEmpty() { |
139 |
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ConcurrentSkipListSet q = new ConcurrentSkipListSet(); |
140 |
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assertTrue(q.isEmpty()); |
141 |
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q.add(new Integer(1)); |
142 |
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assertFalse(q.isEmpty()); |
143 |
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q.add(new Integer(2)); |
144 |
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q.pollFirst(); |
145 |
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q.pollFirst(); |
146 |
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assertTrue(q.isEmpty()); |
147 |
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} |
148 |
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149 |
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/** |
150 |
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* size changes when elements added and removed |
151 |
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*/ |
152 |
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public void testSize() { |
153 |
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ConcurrentSkipListSet q = populatedSet(SIZE); |
154 |
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for (int i = 0; i < SIZE; ++i) { |
155 |
jsr166 |
1.40 |
assertEquals(SIZE - i, q.size()); |
156 |
dl |
1.1 |
q.pollFirst(); |
157 |
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} |
158 |
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for (int i = 0; i < SIZE; ++i) { |
159 |
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assertEquals(i, q.size()); |
160 |
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q.add(new Integer(i)); |
161 |
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} |
162 |
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} |
163 |
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164 |
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/** |
165 |
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* add(null) throws NPE |
166 |
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*/ |
167 |
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public void testAddNull() { |
168 |
jsr166 |
1.37 |
ConcurrentSkipListSet q = new ConcurrentSkipListSet(); |
169 |
jsr166 |
1.7 |
try { |
170 |
dl |
1.1 |
q.add(null); |
171 |
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shouldThrow(); |
172 |
jsr166 |
1.8 |
} catch (NullPointerException success) {} |
173 |
dl |
1.1 |
} |
174 |
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175 |
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/** |
176 |
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* Add of comparable element succeeds |
177 |
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*/ |
178 |
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public void testAdd() { |
179 |
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ConcurrentSkipListSet q = new ConcurrentSkipListSet(); |
180 |
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assertTrue(q.add(zero)); |
181 |
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assertTrue(q.add(one)); |
182 |
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} |
183 |
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184 |
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/** |
185 |
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* Add of duplicate element fails |
186 |
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*/ |
187 |
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public void testAddDup() { |
188 |
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ConcurrentSkipListSet q = new ConcurrentSkipListSet(); |
189 |
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assertTrue(q.add(zero)); |
190 |
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assertFalse(q.add(zero)); |
191 |
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} |
192 |
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193 |
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/** |
194 |
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* Add of non-Comparable throws CCE |
195 |
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*/ |
196 |
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public void testAddNonComparable() { |
197 |
jsr166 |
1.37 |
ConcurrentSkipListSet q = new ConcurrentSkipListSet(); |
198 |
dl |
1.1 |
try { |
199 |
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q.add(new Object()); |
200 |
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q.add(new Object()); |
201 |
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shouldThrow(); |
202 |
jsr166 |
1.8 |
} catch (ClassCastException success) {} |
203 |
dl |
1.1 |
} |
204 |
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205 |
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/** |
206 |
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* addAll(null) throws NPE |
207 |
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*/ |
208 |
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public void testAddAll1() { |
209 |
jsr166 |
1.37 |
ConcurrentSkipListSet q = new ConcurrentSkipListSet(); |
210 |
dl |
1.1 |
try { |
211 |
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q.addAll(null); |
212 |
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shouldThrow(); |
213 |
jsr166 |
1.8 |
} catch (NullPointerException success) {} |
214 |
dl |
1.1 |
} |
215 |
jsr166 |
1.14 |
|
216 |
dl |
1.1 |
/** |
217 |
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* addAll of a collection with null elements throws NPE |
218 |
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*/ |
219 |
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public void testAddAll2() { |
220 |
jsr166 |
1.37 |
ConcurrentSkipListSet q = new ConcurrentSkipListSet(); |
221 |
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Integer[] ints = new Integer[SIZE]; |
222 |
dl |
1.1 |
try { |
223 |
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q.addAll(Arrays.asList(ints)); |
224 |
|
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shouldThrow(); |
225 |
jsr166 |
1.8 |
} catch (NullPointerException success) {} |
226 |
dl |
1.1 |
} |
227 |
jsr166 |
1.14 |
|
228 |
dl |
1.1 |
/** |
229 |
|
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* addAll of a collection with any null elements throws NPE after |
230 |
|
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* possibly adding some elements |
231 |
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*/ |
232 |
|
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public void testAddAll3() { |
233 |
jsr166 |
1.37 |
ConcurrentSkipListSet q = new ConcurrentSkipListSet(); |
234 |
|
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Integer[] ints = new Integer[SIZE]; |
235 |
jsr166 |
1.40 |
for (int i = 0; i < SIZE - 1; ++i) |
236 |
jsr166 |
1.37 |
ints[i] = new Integer(i); |
237 |
dl |
1.1 |
try { |
238 |
|
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q.addAll(Arrays.asList(ints)); |
239 |
|
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shouldThrow(); |
240 |
jsr166 |
1.8 |
} catch (NullPointerException success) {} |
241 |
dl |
1.1 |
} |
242 |
|
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|
243 |
|
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/** |
244 |
|
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* Set contains all elements of successful addAll |
245 |
|
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*/ |
246 |
|
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public void testAddAll5() { |
247 |
jsr166 |
1.9 |
Integer[] empty = new Integer[0]; |
248 |
|
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Integer[] ints = new Integer[SIZE]; |
249 |
|
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for (int i = 0; i < SIZE; ++i) |
250 |
jsr166 |
1.40 |
ints[i] = new Integer(SIZE - 1 - i); |
251 |
jsr166 |
1.9 |
ConcurrentSkipListSet q = new ConcurrentSkipListSet(); |
252 |
|
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assertFalse(q.addAll(Arrays.asList(empty))); |
253 |
|
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assertTrue(q.addAll(Arrays.asList(ints))); |
254 |
|
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for (int i = 0; i < SIZE; ++i) |
255 |
jsr166 |
1.11 |
assertEquals(i, q.pollFirst()); |
256 |
dl |
1.1 |
} |
257 |
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|
258 |
|
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/** |
259 |
|
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* pollFirst succeeds unless empty |
260 |
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*/ |
261 |
|
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public void testPollFirst() { |
262 |
|
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ConcurrentSkipListSet q = populatedSet(SIZE); |
263 |
|
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for (int i = 0; i < SIZE; ++i) { |
264 |
jsr166 |
1.11 |
assertEquals(i, q.pollFirst()); |
265 |
dl |
1.1 |
} |
266 |
jsr166 |
1.7 |
assertNull(q.pollFirst()); |
267 |
dl |
1.1 |
} |
268 |
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|
269 |
|
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/** |
270 |
|
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* pollLast succeeds unless empty |
271 |
|
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*/ |
272 |
|
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public void testPollLast() { |
273 |
|
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ConcurrentSkipListSet q = populatedSet(SIZE); |
274 |
jsr166 |
1.40 |
for (int i = SIZE - 1; i >= 0; --i) { |
275 |
jsr166 |
1.11 |
assertEquals(i, q.pollLast()); |
276 |
dl |
1.1 |
} |
277 |
jsr166 |
1.7 |
assertNull(q.pollFirst()); |
278 |
dl |
1.1 |
} |
279 |
|
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|
280 |
|
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/** |
281 |
|
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* remove(x) removes x and returns true if present |
282 |
|
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*/ |
283 |
|
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public void testRemoveElement() { |
284 |
|
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ConcurrentSkipListSet q = populatedSet(SIZE); |
285 |
jsr166 |
1.32 |
for (int i = 1; i < SIZE; i += 2) { |
286 |
jsr166 |
1.19 |
assertTrue(q.contains(i)); |
287 |
|
|
assertTrue(q.remove(i)); |
288 |
|
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assertFalse(q.contains(i)); |
289 |
jsr166 |
1.42 |
assertTrue(q.contains(i - 1)); |
290 |
dl |
1.1 |
} |
291 |
jsr166 |
1.32 |
for (int i = 0; i < SIZE; i += 2) { |
292 |
jsr166 |
1.19 |
assertTrue(q.contains(i)); |
293 |
|
|
assertTrue(q.remove(i)); |
294 |
|
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assertFalse(q.contains(i)); |
295 |
jsr166 |
1.42 |
assertFalse(q.remove(i + 1)); |
296 |
|
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assertFalse(q.contains(i + 1)); |
297 |
dl |
1.1 |
} |
298 |
|
|
assertTrue(q.isEmpty()); |
299 |
|
|
} |
300 |
jsr166 |
1.4 |
|
301 |
dl |
1.1 |
/** |
302 |
|
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* contains(x) reports true when elements added but not yet removed |
303 |
|
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*/ |
304 |
|
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public void testContains() { |
305 |
|
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ConcurrentSkipListSet q = populatedSet(SIZE); |
306 |
|
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for (int i = 0; i < SIZE; ++i) { |
307 |
|
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assertTrue(q.contains(new Integer(i))); |
308 |
|
|
q.pollFirst(); |
309 |
|
|
assertFalse(q.contains(new Integer(i))); |
310 |
|
|
} |
311 |
|
|
} |
312 |
|
|
|
313 |
|
|
/** |
314 |
|
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* clear removes all elements |
315 |
|
|
*/ |
316 |
|
|
public void testClear() { |
317 |
|
|
ConcurrentSkipListSet q = populatedSet(SIZE); |
318 |
|
|
q.clear(); |
319 |
|
|
assertTrue(q.isEmpty()); |
320 |
|
|
assertEquals(0, q.size()); |
321 |
|
|
q.add(new Integer(1)); |
322 |
|
|
assertFalse(q.isEmpty()); |
323 |
|
|
q.clear(); |
324 |
|
|
assertTrue(q.isEmpty()); |
325 |
|
|
} |
326 |
|
|
|
327 |
|
|
/** |
328 |
|
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* containsAll(c) is true when c contains a subset of elements |
329 |
|
|
*/ |
330 |
|
|
public void testContainsAll() { |
331 |
|
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ConcurrentSkipListSet q = populatedSet(SIZE); |
332 |
|
|
ConcurrentSkipListSet p = new ConcurrentSkipListSet(); |
333 |
|
|
for (int i = 0; i < SIZE; ++i) { |
334 |
|
|
assertTrue(q.containsAll(p)); |
335 |
|
|
assertFalse(p.containsAll(q)); |
336 |
|
|
p.add(new Integer(i)); |
337 |
|
|
} |
338 |
|
|
assertTrue(p.containsAll(q)); |
339 |
|
|
} |
340 |
|
|
|
341 |
|
|
/** |
342 |
|
|
* retainAll(c) retains only those elements of c and reports true if changed |
343 |
|
|
*/ |
344 |
|
|
public void testRetainAll() { |
345 |
|
|
ConcurrentSkipListSet q = populatedSet(SIZE); |
346 |
|
|
ConcurrentSkipListSet p = populatedSet(SIZE); |
347 |
|
|
for (int i = 0; i < SIZE; ++i) { |
348 |
|
|
boolean changed = q.retainAll(p); |
349 |
|
|
if (i == 0) |
350 |
|
|
assertFalse(changed); |
351 |
|
|
else |
352 |
|
|
assertTrue(changed); |
353 |
|
|
|
354 |
|
|
assertTrue(q.containsAll(p)); |
355 |
jsr166 |
1.40 |
assertEquals(SIZE - i, q.size()); |
356 |
dl |
1.1 |
p.pollFirst(); |
357 |
|
|
} |
358 |
|
|
} |
359 |
|
|
|
360 |
|
|
/** |
361 |
|
|
* removeAll(c) removes only those elements of c and reports true if changed |
362 |
|
|
*/ |
363 |
|
|
public void testRemoveAll() { |
364 |
|
|
for (int i = 1; i < SIZE; ++i) { |
365 |
|
|
ConcurrentSkipListSet q = populatedSet(SIZE); |
366 |
|
|
ConcurrentSkipListSet p = populatedSet(i); |
367 |
|
|
assertTrue(q.removeAll(p)); |
368 |
jsr166 |
1.40 |
assertEquals(SIZE - i, q.size()); |
369 |
dl |
1.1 |
for (int j = 0; j < i; ++j) { |
370 |
jsr166 |
1.33 |
Integer x = (Integer)(p.pollFirst()); |
371 |
|
|
assertFalse(q.contains(x)); |
372 |
dl |
1.1 |
} |
373 |
|
|
} |
374 |
|
|
} |
375 |
|
|
|
376 |
|
|
/** |
377 |
|
|
* lower returns preceding element |
378 |
|
|
*/ |
379 |
|
|
public void testLower() { |
380 |
|
|
ConcurrentSkipListSet q = set5(); |
381 |
|
|
Object e1 = q.lower(three); |
382 |
|
|
assertEquals(two, e1); |
383 |
|
|
|
384 |
|
|
Object e2 = q.lower(six); |
385 |
|
|
assertEquals(five, e2); |
386 |
|
|
|
387 |
|
|
Object e3 = q.lower(one); |
388 |
|
|
assertNull(e3); |
389 |
|
|
|
390 |
|
|
Object e4 = q.lower(zero); |
391 |
|
|
assertNull(e4); |
392 |
|
|
} |
393 |
|
|
|
394 |
|
|
/** |
395 |
|
|
* higher returns next element |
396 |
|
|
*/ |
397 |
|
|
public void testHigher() { |
398 |
|
|
ConcurrentSkipListSet q = set5(); |
399 |
|
|
Object e1 = q.higher(three); |
400 |
|
|
assertEquals(four, e1); |
401 |
|
|
|
402 |
|
|
Object e2 = q.higher(zero); |
403 |
|
|
assertEquals(one, e2); |
404 |
|
|
|
405 |
|
|
Object e3 = q.higher(five); |
406 |
|
|
assertNull(e3); |
407 |
|
|
|
408 |
|
|
Object e4 = q.higher(six); |
409 |
|
|
assertNull(e4); |
410 |
|
|
} |
411 |
|
|
|
412 |
|
|
/** |
413 |
|
|
* floor returns preceding element |
414 |
|
|
*/ |
415 |
|
|
public void testFloor() { |
416 |
|
|
ConcurrentSkipListSet q = set5(); |
417 |
|
|
Object e1 = q.floor(three); |
418 |
|
|
assertEquals(three, e1); |
419 |
|
|
|
420 |
|
|
Object e2 = q.floor(six); |
421 |
|
|
assertEquals(five, e2); |
422 |
|
|
|
423 |
|
|
Object e3 = q.floor(one); |
424 |
|
|
assertEquals(one, e3); |
425 |
|
|
|
426 |
|
|
Object e4 = q.floor(zero); |
427 |
|
|
assertNull(e4); |
428 |
|
|
} |
429 |
|
|
|
430 |
|
|
/** |
431 |
|
|
* ceiling returns next element |
432 |
|
|
*/ |
433 |
|
|
public void testCeiling() { |
434 |
|
|
ConcurrentSkipListSet q = set5(); |
435 |
|
|
Object e1 = q.ceiling(three); |
436 |
|
|
assertEquals(three, e1); |
437 |
|
|
|
438 |
|
|
Object e2 = q.ceiling(zero); |
439 |
|
|
assertEquals(one, e2); |
440 |
|
|
|
441 |
|
|
Object e3 = q.ceiling(five); |
442 |
|
|
assertEquals(five, e3); |
443 |
|
|
|
444 |
|
|
Object e4 = q.ceiling(six); |
445 |
|
|
assertNull(e4); |
446 |
|
|
} |
447 |
|
|
|
448 |
|
|
/** |
449 |
jsr166 |
1.17 |
* toArray contains all elements in sorted order |
450 |
dl |
1.1 |
*/ |
451 |
|
|
public void testToArray() { |
452 |
|
|
ConcurrentSkipListSet q = populatedSet(SIZE); |
453 |
jsr166 |
1.7 |
Object[] o = q.toArray(); |
454 |
|
|
for (int i = 0; i < o.length; i++) |
455 |
jsr166 |
1.17 |
assertSame(o[i], q.pollFirst()); |
456 |
dl |
1.1 |
} |
457 |
|
|
|
458 |
|
|
/** |
459 |
jsr166 |
1.17 |
* toArray(a) contains all elements in sorted order |
460 |
dl |
1.1 |
*/ |
461 |
|
|
public void testToArray2() { |
462 |
jsr166 |
1.18 |
ConcurrentSkipListSet<Integer> q = populatedSet(SIZE); |
463 |
jsr166 |
1.7 |
Integer[] ints = new Integer[SIZE]; |
464 |
jsr166 |
1.26 |
assertSame(ints, q.toArray(ints)); |
465 |
jsr166 |
1.5 |
for (int i = 0; i < ints.length; i++) |
466 |
jsr166 |
1.17 |
assertSame(ints[i], q.pollFirst()); |
467 |
dl |
1.1 |
} |
468 |
jsr166 |
1.4 |
|
469 |
dl |
1.1 |
/** |
470 |
|
|
* iterator iterates through all elements |
471 |
|
|
*/ |
472 |
|
|
public void testIterator() { |
473 |
|
|
ConcurrentSkipListSet q = populatedSet(SIZE); |
474 |
jsr166 |
1.7 |
Iterator it = q.iterator(); |
475 |
jsr166 |
1.35 |
int i; |
476 |
|
|
for (i = 0; it.hasNext(); i++) |
477 |
dl |
1.1 |
assertTrue(q.contains(it.next())); |
478 |
|
|
assertEquals(i, SIZE); |
479 |
jsr166 |
1.35 |
assertIteratorExhausted(it); |
480 |
dl |
1.1 |
} |
481 |
|
|
|
482 |
|
|
/** |
483 |
|
|
* iterator of empty set has no elements |
484 |
|
|
*/ |
485 |
|
|
public void testEmptyIterator() { |
486 |
jsr166 |
1.35 |
NavigableSet s = new ConcurrentSkipListSet(); |
487 |
|
|
assertIteratorExhausted(s.iterator()); |
488 |
|
|
assertIteratorExhausted(s.descendingSet().iterator()); |
489 |
dl |
1.1 |
} |
490 |
|
|
|
491 |
|
|
/** |
492 |
|
|
* iterator.remove removes current element |
493 |
|
|
*/ |
494 |
jsr166 |
1.13 |
public void testIteratorRemove() { |
495 |
dl |
1.1 |
final ConcurrentSkipListSet q = new ConcurrentSkipListSet(); |
496 |
|
|
q.add(new Integer(2)); |
497 |
|
|
q.add(new Integer(1)); |
498 |
|
|
q.add(new Integer(3)); |
499 |
|
|
|
500 |
|
|
Iterator it = q.iterator(); |
501 |
|
|
it.next(); |
502 |
|
|
it.remove(); |
503 |
|
|
|
504 |
|
|
it = q.iterator(); |
505 |
|
|
assertEquals(it.next(), new Integer(2)); |
506 |
|
|
assertEquals(it.next(), new Integer(3)); |
507 |
|
|
assertFalse(it.hasNext()); |
508 |
|
|
} |
509 |
|
|
|
510 |
|
|
/** |
511 |
|
|
* toString contains toStrings of elements |
512 |
|
|
*/ |
513 |
|
|
public void testToString() { |
514 |
|
|
ConcurrentSkipListSet q = populatedSet(SIZE); |
515 |
|
|
String s = q.toString(); |
516 |
|
|
for (int i = 0; i < SIZE; ++i) { |
517 |
jsr166 |
1.22 |
assertTrue(s.contains(String.valueOf(i))); |
518 |
dl |
1.1 |
} |
519 |
jsr166 |
1.4 |
} |
520 |
dl |
1.1 |
|
521 |
|
|
/** |
522 |
jsr166 |
1.4 |
* A deserialized serialized set has same elements |
523 |
dl |
1.1 |
*/ |
524 |
jsr166 |
1.8 |
public void testSerialization() throws Exception { |
525 |
jsr166 |
1.23 |
NavigableSet x = populatedSet(SIZE); |
526 |
|
|
NavigableSet y = serialClone(x); |
527 |
|
|
|
528 |
jsr166 |
1.30 |
assertNotSame(x, y); |
529 |
jsr166 |
1.23 |
assertEquals(x.size(), y.size()); |
530 |
|
|
assertEquals(x, y); |
531 |
|
|
assertEquals(y, x); |
532 |
|
|
while (!x.isEmpty()) { |
533 |
|
|
assertFalse(y.isEmpty()); |
534 |
|
|
assertEquals(x.pollFirst(), y.pollFirst()); |
535 |
|
|
} |
536 |
|
|
assertTrue(y.isEmpty()); |
537 |
dl |
1.1 |
} |
538 |
|
|
|
539 |
|
|
/** |
540 |
|
|
* subSet returns set with keys in requested range |
541 |
|
|
*/ |
542 |
|
|
public void testSubSetContents() { |
543 |
|
|
ConcurrentSkipListSet set = set5(); |
544 |
|
|
SortedSet sm = set.subSet(two, four); |
545 |
|
|
assertEquals(two, sm.first()); |
546 |
|
|
assertEquals(three, sm.last()); |
547 |
|
|
assertEquals(2, sm.size()); |
548 |
|
|
assertFalse(sm.contains(one)); |
549 |
|
|
assertTrue(sm.contains(two)); |
550 |
|
|
assertTrue(sm.contains(three)); |
551 |
|
|
assertFalse(sm.contains(four)); |
552 |
|
|
assertFalse(sm.contains(five)); |
553 |
|
|
Iterator i = sm.iterator(); |
554 |
|
|
Object k; |
555 |
|
|
k = (Integer)(i.next()); |
556 |
|
|
assertEquals(two, k); |
557 |
|
|
k = (Integer)(i.next()); |
558 |
|
|
assertEquals(three, k); |
559 |
|
|
assertFalse(i.hasNext()); |
560 |
|
|
Iterator j = sm.iterator(); |
561 |
|
|
j.next(); |
562 |
|
|
j.remove(); |
563 |
|
|
assertFalse(set.contains(two)); |
564 |
|
|
assertEquals(4, set.size()); |
565 |
|
|
assertEquals(1, sm.size()); |
566 |
|
|
assertEquals(three, sm.first()); |
567 |
|
|
assertEquals(three, sm.last()); |
568 |
|
|
assertTrue(sm.remove(three)); |
569 |
|
|
assertTrue(sm.isEmpty()); |
570 |
|
|
assertEquals(3, set.size()); |
571 |
|
|
} |
572 |
|
|
|
573 |
|
|
public void testSubSetContents2() { |
574 |
|
|
ConcurrentSkipListSet set = set5(); |
575 |
|
|
SortedSet sm = set.subSet(two, three); |
576 |
|
|
assertEquals(1, sm.size()); |
577 |
|
|
assertEquals(two, sm.first()); |
578 |
|
|
assertEquals(two, sm.last()); |
579 |
|
|
assertFalse(sm.contains(one)); |
580 |
|
|
assertTrue(sm.contains(two)); |
581 |
|
|
assertFalse(sm.contains(three)); |
582 |
|
|
assertFalse(sm.contains(four)); |
583 |
|
|
assertFalse(sm.contains(five)); |
584 |
|
|
Iterator i = sm.iterator(); |
585 |
|
|
Object k; |
586 |
|
|
k = (Integer)(i.next()); |
587 |
|
|
assertEquals(two, k); |
588 |
|
|
assertFalse(i.hasNext()); |
589 |
|
|
Iterator j = sm.iterator(); |
590 |
|
|
j.next(); |
591 |
|
|
j.remove(); |
592 |
|
|
assertFalse(set.contains(two)); |
593 |
|
|
assertEquals(4, set.size()); |
594 |
|
|
assertEquals(0, sm.size()); |
595 |
|
|
assertTrue(sm.isEmpty()); |
596 |
|
|
assertFalse(sm.remove(three)); |
597 |
|
|
assertEquals(4, set.size()); |
598 |
|
|
} |
599 |
|
|
|
600 |
|
|
/** |
601 |
|
|
* headSet returns set with keys in requested range |
602 |
|
|
*/ |
603 |
|
|
public void testHeadSetContents() { |
604 |
|
|
ConcurrentSkipListSet set = set5(); |
605 |
|
|
SortedSet sm = set.headSet(four); |
606 |
|
|
assertTrue(sm.contains(one)); |
607 |
|
|
assertTrue(sm.contains(two)); |
608 |
|
|
assertTrue(sm.contains(three)); |
609 |
|
|
assertFalse(sm.contains(four)); |
610 |
|
|
assertFalse(sm.contains(five)); |
611 |
|
|
Iterator i = sm.iterator(); |
612 |
|
|
Object k; |
613 |
|
|
k = (Integer)(i.next()); |
614 |
|
|
assertEquals(one, k); |
615 |
|
|
k = (Integer)(i.next()); |
616 |
|
|
assertEquals(two, k); |
617 |
|
|
k = (Integer)(i.next()); |
618 |
|
|
assertEquals(three, k); |
619 |
|
|
assertFalse(i.hasNext()); |
620 |
|
|
sm.clear(); |
621 |
|
|
assertTrue(sm.isEmpty()); |
622 |
|
|
assertEquals(2, set.size()); |
623 |
|
|
assertEquals(four, set.first()); |
624 |
|
|
} |
625 |
|
|
|
626 |
|
|
/** |
627 |
|
|
* tailSet returns set with keys in requested range |
628 |
|
|
*/ |
629 |
|
|
public void testTailSetContents() { |
630 |
|
|
ConcurrentSkipListSet set = set5(); |
631 |
|
|
SortedSet sm = set.tailSet(two); |
632 |
|
|
assertFalse(sm.contains(one)); |
633 |
|
|
assertTrue(sm.contains(two)); |
634 |
|
|
assertTrue(sm.contains(three)); |
635 |
|
|
assertTrue(sm.contains(four)); |
636 |
|
|
assertTrue(sm.contains(five)); |
637 |
|
|
Iterator i = sm.iterator(); |
638 |
|
|
Object k; |
639 |
|
|
k = (Integer)(i.next()); |
640 |
|
|
assertEquals(two, k); |
641 |
|
|
k = (Integer)(i.next()); |
642 |
|
|
assertEquals(three, k); |
643 |
|
|
k = (Integer)(i.next()); |
644 |
|
|
assertEquals(four, k); |
645 |
|
|
k = (Integer)(i.next()); |
646 |
|
|
assertEquals(five, k); |
647 |
|
|
assertFalse(i.hasNext()); |
648 |
|
|
|
649 |
|
|
SortedSet ssm = sm.tailSet(four); |
650 |
|
|
assertEquals(four, ssm.first()); |
651 |
|
|
assertEquals(five, ssm.last()); |
652 |
|
|
assertTrue(ssm.remove(four)); |
653 |
|
|
assertEquals(1, ssm.size()); |
654 |
|
|
assertEquals(3, sm.size()); |
655 |
|
|
assertEquals(4, set.size()); |
656 |
|
|
} |
657 |
|
|
|
658 |
dl |
1.2 |
Random rnd = new Random(666); |
659 |
|
|
|
660 |
|
|
/** |
661 |
|
|
* Subsets of subsets subdivide correctly |
662 |
|
|
*/ |
663 |
jsr166 |
1.10 |
public void testRecursiveSubSets() throws Exception { |
664 |
jsr166 |
1.16 |
int setSize = expensiveTests ? 1000 : 100; |
665 |
jsr166 |
1.7 |
Class cl = ConcurrentSkipListSet.class; |
666 |
dl |
1.2 |
|
667 |
|
|
NavigableSet<Integer> set = newSet(cl); |
668 |
jsr166 |
1.23 |
BitSet bs = new BitSet(setSize); |
669 |
dl |
1.2 |
|
670 |
jsr166 |
1.23 |
populate(set, setSize, bs); |
671 |
|
|
check(set, 0, setSize - 1, true, bs); |
672 |
|
|
check(set.descendingSet(), 0, setSize - 1, false, bs); |
673 |
|
|
|
674 |
|
|
mutateSet(set, 0, setSize - 1, bs); |
675 |
|
|
check(set, 0, setSize - 1, true, bs); |
676 |
|
|
check(set.descendingSet(), 0, setSize - 1, false, bs); |
677 |
dl |
1.2 |
|
678 |
dl |
1.3 |
bashSubSet(set.subSet(0, true, setSize, false), |
679 |
jsr166 |
1.23 |
0, setSize - 1, true, bs); |
680 |
dl |
1.2 |
} |
681 |
|
|
|
682 |
jsr166 |
1.29 |
/** |
683 |
|
|
* addAll is idempotent |
684 |
|
|
*/ |
685 |
|
|
public void testAddAll_idempotent() throws Exception { |
686 |
|
|
Set x = populatedSet(SIZE); |
687 |
|
|
Set y = new ConcurrentSkipListSet(x); |
688 |
|
|
y.addAll(x); |
689 |
|
|
assertEquals(x, y); |
690 |
|
|
assertEquals(y, x); |
691 |
|
|
} |
692 |
|
|
|
693 |
jsr166 |
1.10 |
static NavigableSet<Integer> newSet(Class cl) throws Exception { |
694 |
|
|
NavigableSet<Integer> result = (NavigableSet<Integer>) cl.newInstance(); |
695 |
jsr166 |
1.24 |
assertEquals(0, result.size()); |
696 |
dl |
1.2 |
assertFalse(result.iterator().hasNext()); |
697 |
|
|
return result; |
698 |
|
|
} |
699 |
|
|
|
700 |
jsr166 |
1.23 |
void populate(NavigableSet<Integer> set, int limit, BitSet bs) { |
701 |
dl |
1.2 |
for (int i = 0, n = 2 * limit / 3; i < n; i++) { |
702 |
|
|
int element = rnd.nextInt(limit); |
703 |
jsr166 |
1.23 |
put(set, element, bs); |
704 |
dl |
1.2 |
} |
705 |
|
|
} |
706 |
|
|
|
707 |
jsr166 |
1.23 |
void mutateSet(NavigableSet<Integer> set, int min, int max, BitSet bs) { |
708 |
dl |
1.2 |
int size = set.size(); |
709 |
|
|
int rangeSize = max - min + 1; |
710 |
|
|
|
711 |
|
|
// Remove a bunch of entries directly |
712 |
|
|
for (int i = 0, n = rangeSize / 2; i < n; i++) { |
713 |
jsr166 |
1.23 |
remove(set, min - 5 + rnd.nextInt(rangeSize + 10), bs); |
714 |
dl |
1.2 |
} |
715 |
|
|
|
716 |
|
|
// Remove a bunch of entries with iterator |
717 |
jsr166 |
1.5 |
for (Iterator<Integer> it = set.iterator(); it.hasNext(); ) { |
718 |
dl |
1.2 |
if (rnd.nextBoolean()) { |
719 |
|
|
bs.clear(it.next()); |
720 |
|
|
it.remove(); |
721 |
|
|
} |
722 |
|
|
} |
723 |
|
|
|
724 |
|
|
// Add entries till we're back to original size |
725 |
|
|
while (set.size() < size) { |
726 |
|
|
int element = min + rnd.nextInt(rangeSize); |
727 |
jsr166 |
1.34 |
assertTrue(element >= min && element <= max); |
728 |
jsr166 |
1.23 |
put(set, element, bs); |
729 |
dl |
1.2 |
} |
730 |
|
|
} |
731 |
|
|
|
732 |
jsr166 |
1.23 |
void mutateSubSet(NavigableSet<Integer> set, int min, int max, |
733 |
|
|
BitSet bs) { |
734 |
dl |
1.2 |
int size = set.size(); |
735 |
|
|
int rangeSize = max - min + 1; |
736 |
|
|
|
737 |
|
|
// Remove a bunch of entries directly |
738 |
|
|
for (int i = 0, n = rangeSize / 2; i < n; i++) { |
739 |
jsr166 |
1.23 |
remove(set, min - 5 + rnd.nextInt(rangeSize + 10), bs); |
740 |
dl |
1.2 |
} |
741 |
|
|
|
742 |
|
|
// Remove a bunch of entries with iterator |
743 |
jsr166 |
1.5 |
for (Iterator<Integer> it = set.iterator(); it.hasNext(); ) { |
744 |
dl |
1.2 |
if (rnd.nextBoolean()) { |
745 |
|
|
bs.clear(it.next()); |
746 |
|
|
it.remove(); |
747 |
|
|
} |
748 |
|
|
} |
749 |
|
|
|
750 |
|
|
// Add entries till we're back to original size |
751 |
|
|
while (set.size() < size) { |
752 |
|
|
int element = min - 5 + rnd.nextInt(rangeSize + 10); |
753 |
jsr166 |
1.34 |
if (element >= min && element <= max) { |
754 |
jsr166 |
1.23 |
put(set, element, bs); |
755 |
dl |
1.2 |
} else { |
756 |
|
|
try { |
757 |
|
|
set.add(element); |
758 |
jsr166 |
1.10 |
shouldThrow(); |
759 |
|
|
} catch (IllegalArgumentException success) {} |
760 |
dl |
1.2 |
} |
761 |
|
|
} |
762 |
|
|
} |
763 |
|
|
|
764 |
jsr166 |
1.23 |
void put(NavigableSet<Integer> set, int element, BitSet bs) { |
765 |
dl |
1.2 |
if (set.add(element)) |
766 |
|
|
bs.set(element); |
767 |
|
|
} |
768 |
|
|
|
769 |
jsr166 |
1.23 |
void remove(NavigableSet<Integer> set, int element, BitSet bs) { |
770 |
dl |
1.2 |
if (set.remove(element)) |
771 |
|
|
bs.clear(element); |
772 |
|
|
} |
773 |
|
|
|
774 |
|
|
void bashSubSet(NavigableSet<Integer> set, |
775 |
jsr166 |
1.23 |
int min, int max, boolean ascending, |
776 |
|
|
BitSet bs) { |
777 |
|
|
check(set, min, max, ascending, bs); |
778 |
|
|
check(set.descendingSet(), min, max, !ascending, bs); |
779 |
|
|
|
780 |
|
|
mutateSubSet(set, min, max, bs); |
781 |
|
|
check(set, min, max, ascending, bs); |
782 |
|
|
check(set.descendingSet(), min, max, !ascending, bs); |
783 |
dl |
1.2 |
|
784 |
|
|
// Recurse |
785 |
|
|
if (max - min < 2) |
786 |
|
|
return; |
787 |
|
|
int midPoint = (min + max) / 2; |
788 |
|
|
|
789 |
|
|
// headSet - pick direction and endpoint inclusion randomly |
790 |
|
|
boolean incl = rnd.nextBoolean(); |
791 |
dl |
1.3 |
NavigableSet<Integer> hm = set.headSet(midPoint, incl); |
792 |
dl |
1.2 |
if (ascending) { |
793 |
|
|
if (rnd.nextBoolean()) |
794 |
jsr166 |
1.23 |
bashSubSet(hm, min, midPoint - (incl ? 0 : 1), true, bs); |
795 |
dl |
1.2 |
else |
796 |
|
|
bashSubSet(hm.descendingSet(), min, midPoint - (incl ? 0 : 1), |
797 |
jsr166 |
1.23 |
false, bs); |
798 |
dl |
1.2 |
} else { |
799 |
|
|
if (rnd.nextBoolean()) |
800 |
jsr166 |
1.23 |
bashSubSet(hm, midPoint + (incl ? 0 : 1), max, false, bs); |
801 |
dl |
1.2 |
else |
802 |
|
|
bashSubSet(hm.descendingSet(), midPoint + (incl ? 0 : 1), max, |
803 |
jsr166 |
1.23 |
true, bs); |
804 |
dl |
1.2 |
} |
805 |
|
|
|
806 |
|
|
// tailSet - pick direction and endpoint inclusion randomly |
807 |
|
|
incl = rnd.nextBoolean(); |
808 |
dl |
1.3 |
NavigableSet<Integer> tm = set.tailSet(midPoint,incl); |
809 |
dl |
1.2 |
if (ascending) { |
810 |
|
|
if (rnd.nextBoolean()) |
811 |
jsr166 |
1.23 |
bashSubSet(tm, midPoint + (incl ? 0 : 1), max, true, bs); |
812 |
dl |
1.2 |
else |
813 |
|
|
bashSubSet(tm.descendingSet(), midPoint + (incl ? 0 : 1), max, |
814 |
jsr166 |
1.23 |
false, bs); |
815 |
dl |
1.2 |
} else { |
816 |
|
|
if (rnd.nextBoolean()) { |
817 |
jsr166 |
1.23 |
bashSubSet(tm, min, midPoint - (incl ? 0 : 1), false, bs); |
818 |
dl |
1.2 |
} else { |
819 |
|
|
bashSubSet(tm.descendingSet(), min, midPoint - (incl ? 0 : 1), |
820 |
jsr166 |
1.23 |
true, bs); |
821 |
dl |
1.2 |
} |
822 |
|
|
} |
823 |
|
|
|
824 |
|
|
// subSet - pick direction and endpoint inclusion randomly |
825 |
|
|
int rangeSize = max - min + 1; |
826 |
|
|
int[] endpoints = new int[2]; |
827 |
|
|
endpoints[0] = min + rnd.nextInt(rangeSize); |
828 |
|
|
endpoints[1] = min + rnd.nextInt(rangeSize); |
829 |
|
|
Arrays.sort(endpoints); |
830 |
|
|
boolean lowIncl = rnd.nextBoolean(); |
831 |
|
|
boolean highIncl = rnd.nextBoolean(); |
832 |
|
|
if (ascending) { |
833 |
dl |
1.3 |
NavigableSet<Integer> sm = set.subSet( |
834 |
dl |
1.2 |
endpoints[0], lowIncl, endpoints[1], highIncl); |
835 |
|
|
if (rnd.nextBoolean()) |
836 |
|
|
bashSubSet(sm, endpoints[0] + (lowIncl ? 0 : 1), |
837 |
jsr166 |
1.23 |
endpoints[1] - (highIncl ? 0 : 1), true, bs); |
838 |
dl |
1.2 |
else |
839 |
|
|
bashSubSet(sm.descendingSet(), endpoints[0] + (lowIncl ? 0 : 1), |
840 |
jsr166 |
1.23 |
endpoints[1] - (highIncl ? 0 : 1), false, bs); |
841 |
dl |
1.2 |
} else { |
842 |
dl |
1.3 |
NavigableSet<Integer> sm = set.subSet( |
843 |
dl |
1.2 |
endpoints[1], highIncl, endpoints[0], lowIncl); |
844 |
|
|
if (rnd.nextBoolean()) |
845 |
|
|
bashSubSet(sm, endpoints[0] + (lowIncl ? 0 : 1), |
846 |
jsr166 |
1.23 |
endpoints[1] - (highIncl ? 0 : 1), false, bs); |
847 |
dl |
1.2 |
else |
848 |
|
|
bashSubSet(sm.descendingSet(), endpoints[0] + (lowIncl ? 0 : 1), |
849 |
jsr166 |
1.23 |
endpoints[1] - (highIncl ? 0 : 1), true, bs); |
850 |
dl |
1.2 |
} |
851 |
|
|
} |
852 |
|
|
|
853 |
|
|
/** |
854 |
|
|
* min and max are both inclusive. If max < min, interval is empty. |
855 |
|
|
*/ |
856 |
|
|
void check(NavigableSet<Integer> set, |
857 |
jsr166 |
1.23 |
final int min, final int max, final boolean ascending, |
858 |
|
|
final BitSet bs) { |
859 |
jsr166 |
1.21 |
class ReferenceSet { |
860 |
dl |
1.2 |
int lower(int element) { |
861 |
|
|
return ascending ? |
862 |
|
|
lowerAscending(element) : higherAscending(element); |
863 |
|
|
} |
864 |
|
|
int floor(int element) { |
865 |
|
|
return ascending ? |
866 |
|
|
floorAscending(element) : ceilingAscending(element); |
867 |
|
|
} |
868 |
|
|
int ceiling(int element) { |
869 |
|
|
return ascending ? |
870 |
|
|
ceilingAscending(element) : floorAscending(element); |
871 |
|
|
} |
872 |
|
|
int higher(int element) { |
873 |
|
|
return ascending ? |
874 |
|
|
higherAscending(element) : lowerAscending(element); |
875 |
|
|
} |
876 |
|
|
int first() { |
877 |
|
|
return ascending ? firstAscending() : lastAscending(); |
878 |
|
|
} |
879 |
|
|
int last() { |
880 |
|
|
return ascending ? lastAscending() : firstAscending(); |
881 |
|
|
} |
882 |
|
|
int lowerAscending(int element) { |
883 |
|
|
return floorAscending(element - 1); |
884 |
|
|
} |
885 |
|
|
int floorAscending(int element) { |
886 |
|
|
if (element < min) |
887 |
|
|
return -1; |
888 |
|
|
else if (element > max) |
889 |
|
|
element = max; |
890 |
|
|
|
891 |
|
|
// BitSet should support this! Test would run much faster |
892 |
|
|
while (element >= min) { |
893 |
|
|
if (bs.get(element)) |
894 |
jsr166 |
1.15 |
return element; |
895 |
dl |
1.2 |
element--; |
896 |
|
|
} |
897 |
|
|
return -1; |
898 |
|
|
} |
899 |
|
|
int ceilingAscending(int element) { |
900 |
|
|
if (element < min) |
901 |
|
|
element = min; |
902 |
|
|
else if (element > max) |
903 |
|
|
return -1; |
904 |
|
|
int result = bs.nextSetBit(element); |
905 |
|
|
return result > max ? -1 : result; |
906 |
|
|
} |
907 |
|
|
int higherAscending(int element) { |
908 |
|
|
return ceilingAscending(element + 1); |
909 |
|
|
} |
910 |
|
|
private int firstAscending() { |
911 |
|
|
int result = ceilingAscending(min); |
912 |
|
|
return result > max ? -1 : result; |
913 |
|
|
} |
914 |
|
|
private int lastAscending() { |
915 |
|
|
int result = floorAscending(max); |
916 |
|
|
return result < min ? -1 : result; |
917 |
|
|
} |
918 |
|
|
} |
919 |
|
|
ReferenceSet rs = new ReferenceSet(); |
920 |
|
|
|
921 |
|
|
// Test contents using containsElement |
922 |
|
|
int size = 0; |
923 |
|
|
for (int i = min; i <= max; i++) { |
924 |
|
|
boolean bsContainsI = bs.get(i); |
925 |
|
|
assertEquals(bsContainsI, set.contains(i)); |
926 |
|
|
if (bsContainsI) |
927 |
|
|
size++; |
928 |
|
|
} |
929 |
jsr166 |
1.25 |
assertEquals(size, set.size()); |
930 |
dl |
1.2 |
|
931 |
|
|
// Test contents using contains elementSet iterator |
932 |
|
|
int size2 = 0; |
933 |
|
|
int previousElement = -1; |
934 |
|
|
for (int element : set) { |
935 |
|
|
assertTrue(bs.get(element)); |
936 |
|
|
size2++; |
937 |
|
|
assertTrue(previousElement < 0 || (ascending ? |
938 |
|
|
element - previousElement > 0 : element - previousElement < 0)); |
939 |
|
|
previousElement = element; |
940 |
|
|
} |
941 |
|
|
assertEquals(size2, size); |
942 |
|
|
|
943 |
|
|
// Test navigation ops |
944 |
|
|
for (int element = min - 1; element <= max + 1; element++) { |
945 |
|
|
assertEq(set.lower(element), rs.lower(element)); |
946 |
|
|
assertEq(set.floor(element), rs.floor(element)); |
947 |
|
|
assertEq(set.higher(element), rs.higher(element)); |
948 |
|
|
assertEq(set.ceiling(element), rs.ceiling(element)); |
949 |
|
|
} |
950 |
|
|
|
951 |
|
|
// Test extrema |
952 |
|
|
if (set.size() != 0) { |
953 |
|
|
assertEq(set.first(), rs.first()); |
954 |
|
|
assertEq(set.last(), rs.last()); |
955 |
|
|
} else { |
956 |
|
|
assertEq(rs.first(), -1); |
957 |
|
|
assertEq(rs.last(), -1); |
958 |
|
|
try { |
959 |
|
|
set.first(); |
960 |
jsr166 |
1.10 |
shouldThrow(); |
961 |
|
|
} catch (NoSuchElementException success) {} |
962 |
dl |
1.2 |
try { |
963 |
|
|
set.last(); |
964 |
jsr166 |
1.10 |
shouldThrow(); |
965 |
|
|
} catch (NoSuchElementException success) {} |
966 |
dl |
1.2 |
} |
967 |
|
|
} |
968 |
|
|
|
969 |
|
|
static void assertEq(Integer i, int j) { |
970 |
|
|
if (i == null) |
971 |
|
|
assertEquals(j, -1); |
972 |
|
|
else |
973 |
|
|
assertEquals((int) i, j); |
974 |
|
|
} |
975 |
|
|
|
976 |
|
|
static boolean eq(Integer i, int j) { |
977 |
jsr166 |
1.41 |
return (i == null) ? j == -1 : i == j; |
978 |
dl |
1.2 |
} |
979 |
|
|
|
980 |
dl |
1.1 |
} |