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; |
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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; |
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import java.util.Iterator; |
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import java.util.NavigableSet; |
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import java.util.NoSuchElementException; |
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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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dl |
1.1 |
public class ConcurrentSkipListSetTest extends JSR166TestCase { |
23 |
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public static void main(String[] args) { |
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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 |
} |
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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) |
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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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} |
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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() { |
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ConcurrentSkipListSet q = new ConcurrentSkipListSet(); |
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assertTrue(q.isEmpty()); |
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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); |
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jsr166 |
1.7 |
assertEquals(5, q.size()); |
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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 |
} |
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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() { |
99 |
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 |
1.43 |
} catch (ClassCastException success) { |
203 |
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assertTrue(q.size() < 2); |
204 |
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for (int i = 0, size = q.size(); i < size; i++) |
205 |
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assertTrue(q.pollFirst().getClass() == Object.class); |
206 |
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assertNull(q.pollFirst()); |
207 |
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assertTrue(q.isEmpty()); |
208 |
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assertEquals(0, q.size()); |
209 |
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} |
210 |
dl |
1.1 |
} |
211 |
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212 |
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/** |
213 |
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* addAll(null) throws NPE |
214 |
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*/ |
215 |
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public void testAddAll1() { |
216 |
jsr166 |
1.37 |
ConcurrentSkipListSet q = new ConcurrentSkipListSet(); |
217 |
dl |
1.1 |
try { |
218 |
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q.addAll(null); |
219 |
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shouldThrow(); |
220 |
jsr166 |
1.8 |
} catch (NullPointerException success) {} |
221 |
dl |
1.1 |
} |
222 |
jsr166 |
1.14 |
|
223 |
dl |
1.1 |
/** |
224 |
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* addAll of a collection with null elements throws NPE |
225 |
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*/ |
226 |
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public void testAddAll2() { |
227 |
jsr166 |
1.37 |
ConcurrentSkipListSet q = new ConcurrentSkipListSet(); |
228 |
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Integer[] ints = new Integer[SIZE]; |
229 |
dl |
1.1 |
try { |
230 |
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q.addAll(Arrays.asList(ints)); |
231 |
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shouldThrow(); |
232 |
jsr166 |
1.8 |
} catch (NullPointerException success) {} |
233 |
dl |
1.1 |
} |
234 |
jsr166 |
1.14 |
|
235 |
dl |
1.1 |
/** |
236 |
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* addAll of a collection with any null elements throws NPE after |
237 |
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* possibly adding some elements |
238 |
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*/ |
239 |
|
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public void testAddAll3() { |
240 |
jsr166 |
1.37 |
ConcurrentSkipListSet q = new ConcurrentSkipListSet(); |
241 |
|
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Integer[] ints = new Integer[SIZE]; |
242 |
jsr166 |
1.40 |
for (int i = 0; i < SIZE - 1; ++i) |
243 |
jsr166 |
1.37 |
ints[i] = new Integer(i); |
244 |
dl |
1.1 |
try { |
245 |
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q.addAll(Arrays.asList(ints)); |
246 |
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shouldThrow(); |
247 |
jsr166 |
1.8 |
} catch (NullPointerException success) {} |
248 |
dl |
1.1 |
} |
249 |
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|
250 |
|
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/** |
251 |
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* Set contains all elements of successful addAll |
252 |
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*/ |
253 |
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public void testAddAll5() { |
254 |
jsr166 |
1.9 |
Integer[] empty = new Integer[0]; |
255 |
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Integer[] ints = new Integer[SIZE]; |
256 |
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for (int i = 0; i < SIZE; ++i) |
257 |
jsr166 |
1.40 |
ints[i] = new Integer(SIZE - 1 - i); |
258 |
jsr166 |
1.9 |
ConcurrentSkipListSet q = new ConcurrentSkipListSet(); |
259 |
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assertFalse(q.addAll(Arrays.asList(empty))); |
260 |
|
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assertTrue(q.addAll(Arrays.asList(ints))); |
261 |
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for (int i = 0; i < SIZE; ++i) |
262 |
jsr166 |
1.11 |
assertEquals(i, q.pollFirst()); |
263 |
dl |
1.1 |
} |
264 |
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|
265 |
|
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/** |
266 |
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* pollFirst succeeds unless empty |
267 |
|
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*/ |
268 |
|
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public void testPollFirst() { |
269 |
|
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ConcurrentSkipListSet q = populatedSet(SIZE); |
270 |
|
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for (int i = 0; i < SIZE; ++i) { |
271 |
jsr166 |
1.11 |
assertEquals(i, q.pollFirst()); |
272 |
dl |
1.1 |
} |
273 |
jsr166 |
1.7 |
assertNull(q.pollFirst()); |
274 |
dl |
1.1 |
} |
275 |
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|
276 |
|
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/** |
277 |
|
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* pollLast succeeds unless empty |
278 |
|
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*/ |
279 |
|
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public void testPollLast() { |
280 |
|
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ConcurrentSkipListSet q = populatedSet(SIZE); |
281 |
jsr166 |
1.40 |
for (int i = SIZE - 1; i >= 0; --i) { |
282 |
jsr166 |
1.11 |
assertEquals(i, q.pollLast()); |
283 |
dl |
1.1 |
} |
284 |
jsr166 |
1.7 |
assertNull(q.pollFirst()); |
285 |
dl |
1.1 |
} |
286 |
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|
287 |
|
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/** |
288 |
|
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* remove(x) removes x and returns true if present |
289 |
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*/ |
290 |
|
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public void testRemoveElement() { |
291 |
|
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ConcurrentSkipListSet q = populatedSet(SIZE); |
292 |
jsr166 |
1.32 |
for (int i = 1; i < SIZE; i += 2) { |
293 |
jsr166 |
1.19 |
assertTrue(q.contains(i)); |
294 |
|
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assertTrue(q.remove(i)); |
295 |
|
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assertFalse(q.contains(i)); |
296 |
jsr166 |
1.42 |
assertTrue(q.contains(i - 1)); |
297 |
dl |
1.1 |
} |
298 |
jsr166 |
1.32 |
for (int i = 0; i < SIZE; i += 2) { |
299 |
jsr166 |
1.19 |
assertTrue(q.contains(i)); |
300 |
|
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assertTrue(q.remove(i)); |
301 |
|
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assertFalse(q.contains(i)); |
302 |
jsr166 |
1.42 |
assertFalse(q.remove(i + 1)); |
303 |
|
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assertFalse(q.contains(i + 1)); |
304 |
dl |
1.1 |
} |
305 |
|
|
assertTrue(q.isEmpty()); |
306 |
|
|
} |
307 |
jsr166 |
1.4 |
|
308 |
dl |
1.1 |
/** |
309 |
|
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* contains(x) reports true when elements added but not yet removed |
310 |
|
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*/ |
311 |
|
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public void testContains() { |
312 |
|
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ConcurrentSkipListSet q = populatedSet(SIZE); |
313 |
|
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for (int i = 0; i < SIZE; ++i) { |
314 |
|
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assertTrue(q.contains(new Integer(i))); |
315 |
|
|
q.pollFirst(); |
316 |
|
|
assertFalse(q.contains(new Integer(i))); |
317 |
|
|
} |
318 |
|
|
} |
319 |
|
|
|
320 |
|
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/** |
321 |
|
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* clear removes all elements |
322 |
|
|
*/ |
323 |
|
|
public void testClear() { |
324 |
|
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ConcurrentSkipListSet q = populatedSet(SIZE); |
325 |
|
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q.clear(); |
326 |
|
|
assertTrue(q.isEmpty()); |
327 |
|
|
assertEquals(0, q.size()); |
328 |
|
|
q.add(new Integer(1)); |
329 |
|
|
assertFalse(q.isEmpty()); |
330 |
|
|
q.clear(); |
331 |
|
|
assertTrue(q.isEmpty()); |
332 |
|
|
} |
333 |
|
|
|
334 |
|
|
/** |
335 |
|
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* containsAll(c) is true when c contains a subset of elements |
336 |
|
|
*/ |
337 |
|
|
public void testContainsAll() { |
338 |
|
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ConcurrentSkipListSet q = populatedSet(SIZE); |
339 |
|
|
ConcurrentSkipListSet p = new ConcurrentSkipListSet(); |
340 |
|
|
for (int i = 0; i < SIZE; ++i) { |
341 |
|
|
assertTrue(q.containsAll(p)); |
342 |
|
|
assertFalse(p.containsAll(q)); |
343 |
|
|
p.add(new Integer(i)); |
344 |
|
|
} |
345 |
|
|
assertTrue(p.containsAll(q)); |
346 |
|
|
} |
347 |
|
|
|
348 |
|
|
/** |
349 |
|
|
* retainAll(c) retains only those elements of c and reports true if changed |
350 |
|
|
*/ |
351 |
|
|
public void testRetainAll() { |
352 |
|
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ConcurrentSkipListSet q = populatedSet(SIZE); |
353 |
|
|
ConcurrentSkipListSet p = populatedSet(SIZE); |
354 |
|
|
for (int i = 0; i < SIZE; ++i) { |
355 |
|
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boolean changed = q.retainAll(p); |
356 |
|
|
if (i == 0) |
357 |
|
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assertFalse(changed); |
358 |
|
|
else |
359 |
|
|
assertTrue(changed); |
360 |
|
|
|
361 |
|
|
assertTrue(q.containsAll(p)); |
362 |
jsr166 |
1.40 |
assertEquals(SIZE - i, q.size()); |
363 |
dl |
1.1 |
p.pollFirst(); |
364 |
|
|
} |
365 |
|
|
} |
366 |
|
|
|
367 |
|
|
/** |
368 |
|
|
* removeAll(c) removes only those elements of c and reports true if changed |
369 |
|
|
*/ |
370 |
|
|
public void testRemoveAll() { |
371 |
|
|
for (int i = 1; i < SIZE; ++i) { |
372 |
|
|
ConcurrentSkipListSet q = populatedSet(SIZE); |
373 |
|
|
ConcurrentSkipListSet p = populatedSet(i); |
374 |
|
|
assertTrue(q.removeAll(p)); |
375 |
jsr166 |
1.40 |
assertEquals(SIZE - i, q.size()); |
376 |
dl |
1.1 |
for (int j = 0; j < i; ++j) { |
377 |
jsr166 |
1.33 |
Integer x = (Integer)(p.pollFirst()); |
378 |
|
|
assertFalse(q.contains(x)); |
379 |
dl |
1.1 |
} |
380 |
|
|
} |
381 |
|
|
} |
382 |
|
|
|
383 |
|
|
/** |
384 |
|
|
* lower returns preceding element |
385 |
|
|
*/ |
386 |
|
|
public void testLower() { |
387 |
|
|
ConcurrentSkipListSet q = set5(); |
388 |
|
|
Object e1 = q.lower(three); |
389 |
|
|
assertEquals(two, e1); |
390 |
|
|
|
391 |
|
|
Object e2 = q.lower(six); |
392 |
|
|
assertEquals(five, e2); |
393 |
|
|
|
394 |
|
|
Object e3 = q.lower(one); |
395 |
|
|
assertNull(e3); |
396 |
|
|
|
397 |
|
|
Object e4 = q.lower(zero); |
398 |
|
|
assertNull(e4); |
399 |
|
|
} |
400 |
|
|
|
401 |
|
|
/** |
402 |
|
|
* higher returns next element |
403 |
|
|
*/ |
404 |
|
|
public void testHigher() { |
405 |
|
|
ConcurrentSkipListSet q = set5(); |
406 |
|
|
Object e1 = q.higher(three); |
407 |
|
|
assertEquals(four, e1); |
408 |
|
|
|
409 |
|
|
Object e2 = q.higher(zero); |
410 |
|
|
assertEquals(one, e2); |
411 |
|
|
|
412 |
|
|
Object e3 = q.higher(five); |
413 |
|
|
assertNull(e3); |
414 |
|
|
|
415 |
|
|
Object e4 = q.higher(six); |
416 |
|
|
assertNull(e4); |
417 |
|
|
} |
418 |
|
|
|
419 |
|
|
/** |
420 |
|
|
* floor returns preceding element |
421 |
|
|
*/ |
422 |
|
|
public void testFloor() { |
423 |
|
|
ConcurrentSkipListSet q = set5(); |
424 |
|
|
Object e1 = q.floor(three); |
425 |
|
|
assertEquals(three, e1); |
426 |
|
|
|
427 |
|
|
Object e2 = q.floor(six); |
428 |
|
|
assertEquals(five, e2); |
429 |
|
|
|
430 |
|
|
Object e3 = q.floor(one); |
431 |
|
|
assertEquals(one, e3); |
432 |
|
|
|
433 |
|
|
Object e4 = q.floor(zero); |
434 |
|
|
assertNull(e4); |
435 |
|
|
} |
436 |
|
|
|
437 |
|
|
/** |
438 |
|
|
* ceiling returns next element |
439 |
|
|
*/ |
440 |
|
|
public void testCeiling() { |
441 |
|
|
ConcurrentSkipListSet q = set5(); |
442 |
|
|
Object e1 = q.ceiling(three); |
443 |
|
|
assertEquals(three, e1); |
444 |
|
|
|
445 |
|
|
Object e2 = q.ceiling(zero); |
446 |
|
|
assertEquals(one, e2); |
447 |
|
|
|
448 |
|
|
Object e3 = q.ceiling(five); |
449 |
|
|
assertEquals(five, e3); |
450 |
|
|
|
451 |
|
|
Object e4 = q.ceiling(six); |
452 |
|
|
assertNull(e4); |
453 |
|
|
} |
454 |
|
|
|
455 |
|
|
/** |
456 |
jsr166 |
1.17 |
* toArray contains all elements in sorted order |
457 |
dl |
1.1 |
*/ |
458 |
|
|
public void testToArray() { |
459 |
|
|
ConcurrentSkipListSet q = populatedSet(SIZE); |
460 |
jsr166 |
1.7 |
Object[] o = q.toArray(); |
461 |
|
|
for (int i = 0; i < o.length; i++) |
462 |
jsr166 |
1.17 |
assertSame(o[i], q.pollFirst()); |
463 |
dl |
1.1 |
} |
464 |
|
|
|
465 |
|
|
/** |
466 |
jsr166 |
1.17 |
* toArray(a) contains all elements in sorted order |
467 |
dl |
1.1 |
*/ |
468 |
|
|
public void testToArray2() { |
469 |
jsr166 |
1.18 |
ConcurrentSkipListSet<Integer> q = populatedSet(SIZE); |
470 |
jsr166 |
1.7 |
Integer[] ints = new Integer[SIZE]; |
471 |
jsr166 |
1.26 |
assertSame(ints, q.toArray(ints)); |
472 |
jsr166 |
1.5 |
for (int i = 0; i < ints.length; i++) |
473 |
jsr166 |
1.17 |
assertSame(ints[i], q.pollFirst()); |
474 |
dl |
1.1 |
} |
475 |
jsr166 |
1.4 |
|
476 |
dl |
1.1 |
/** |
477 |
|
|
* iterator iterates through all elements |
478 |
|
|
*/ |
479 |
|
|
public void testIterator() { |
480 |
|
|
ConcurrentSkipListSet q = populatedSet(SIZE); |
481 |
jsr166 |
1.7 |
Iterator it = q.iterator(); |
482 |
jsr166 |
1.35 |
int i; |
483 |
|
|
for (i = 0; it.hasNext(); i++) |
484 |
dl |
1.1 |
assertTrue(q.contains(it.next())); |
485 |
|
|
assertEquals(i, SIZE); |
486 |
jsr166 |
1.35 |
assertIteratorExhausted(it); |
487 |
dl |
1.1 |
} |
488 |
|
|
|
489 |
|
|
/** |
490 |
|
|
* iterator of empty set has no elements |
491 |
|
|
*/ |
492 |
|
|
public void testEmptyIterator() { |
493 |
jsr166 |
1.35 |
NavigableSet s = new ConcurrentSkipListSet(); |
494 |
|
|
assertIteratorExhausted(s.iterator()); |
495 |
|
|
assertIteratorExhausted(s.descendingSet().iterator()); |
496 |
dl |
1.1 |
} |
497 |
|
|
|
498 |
|
|
/** |
499 |
|
|
* iterator.remove removes current element |
500 |
|
|
*/ |
501 |
jsr166 |
1.13 |
public void testIteratorRemove() { |
502 |
dl |
1.1 |
final ConcurrentSkipListSet q = new ConcurrentSkipListSet(); |
503 |
|
|
q.add(new Integer(2)); |
504 |
|
|
q.add(new Integer(1)); |
505 |
|
|
q.add(new Integer(3)); |
506 |
|
|
|
507 |
|
|
Iterator it = q.iterator(); |
508 |
|
|
it.next(); |
509 |
|
|
it.remove(); |
510 |
|
|
|
511 |
|
|
it = q.iterator(); |
512 |
|
|
assertEquals(it.next(), new Integer(2)); |
513 |
|
|
assertEquals(it.next(), new Integer(3)); |
514 |
|
|
assertFalse(it.hasNext()); |
515 |
|
|
} |
516 |
|
|
|
517 |
|
|
/** |
518 |
|
|
* toString contains toStrings of elements |
519 |
|
|
*/ |
520 |
|
|
public void testToString() { |
521 |
|
|
ConcurrentSkipListSet q = populatedSet(SIZE); |
522 |
|
|
String s = q.toString(); |
523 |
|
|
for (int i = 0; i < SIZE; ++i) { |
524 |
jsr166 |
1.22 |
assertTrue(s.contains(String.valueOf(i))); |
525 |
dl |
1.1 |
} |
526 |
jsr166 |
1.4 |
} |
527 |
dl |
1.1 |
|
528 |
|
|
/** |
529 |
jsr166 |
1.4 |
* A deserialized serialized set has same elements |
530 |
dl |
1.1 |
*/ |
531 |
jsr166 |
1.8 |
public void testSerialization() throws Exception { |
532 |
jsr166 |
1.23 |
NavigableSet x = populatedSet(SIZE); |
533 |
|
|
NavigableSet y = serialClone(x); |
534 |
|
|
|
535 |
jsr166 |
1.30 |
assertNotSame(x, y); |
536 |
jsr166 |
1.23 |
assertEquals(x.size(), y.size()); |
537 |
|
|
assertEquals(x, y); |
538 |
|
|
assertEquals(y, x); |
539 |
|
|
while (!x.isEmpty()) { |
540 |
|
|
assertFalse(y.isEmpty()); |
541 |
|
|
assertEquals(x.pollFirst(), y.pollFirst()); |
542 |
|
|
} |
543 |
|
|
assertTrue(y.isEmpty()); |
544 |
dl |
1.1 |
} |
545 |
|
|
|
546 |
|
|
/** |
547 |
|
|
* subSet returns set with keys in requested range |
548 |
|
|
*/ |
549 |
|
|
public void testSubSetContents() { |
550 |
|
|
ConcurrentSkipListSet set = set5(); |
551 |
|
|
SortedSet sm = set.subSet(two, four); |
552 |
|
|
assertEquals(two, sm.first()); |
553 |
|
|
assertEquals(three, sm.last()); |
554 |
|
|
assertEquals(2, sm.size()); |
555 |
|
|
assertFalse(sm.contains(one)); |
556 |
|
|
assertTrue(sm.contains(two)); |
557 |
|
|
assertTrue(sm.contains(three)); |
558 |
|
|
assertFalse(sm.contains(four)); |
559 |
|
|
assertFalse(sm.contains(five)); |
560 |
|
|
Iterator i = sm.iterator(); |
561 |
|
|
Object k; |
562 |
|
|
k = (Integer)(i.next()); |
563 |
|
|
assertEquals(two, k); |
564 |
|
|
k = (Integer)(i.next()); |
565 |
|
|
assertEquals(three, k); |
566 |
|
|
assertFalse(i.hasNext()); |
567 |
|
|
Iterator j = sm.iterator(); |
568 |
|
|
j.next(); |
569 |
|
|
j.remove(); |
570 |
|
|
assertFalse(set.contains(two)); |
571 |
|
|
assertEquals(4, set.size()); |
572 |
|
|
assertEquals(1, sm.size()); |
573 |
|
|
assertEquals(three, sm.first()); |
574 |
|
|
assertEquals(three, sm.last()); |
575 |
|
|
assertTrue(sm.remove(three)); |
576 |
|
|
assertTrue(sm.isEmpty()); |
577 |
|
|
assertEquals(3, set.size()); |
578 |
|
|
} |
579 |
|
|
|
580 |
|
|
public void testSubSetContents2() { |
581 |
|
|
ConcurrentSkipListSet set = set5(); |
582 |
|
|
SortedSet sm = set.subSet(two, three); |
583 |
|
|
assertEquals(1, sm.size()); |
584 |
|
|
assertEquals(two, sm.first()); |
585 |
|
|
assertEquals(two, sm.last()); |
586 |
|
|
assertFalse(sm.contains(one)); |
587 |
|
|
assertTrue(sm.contains(two)); |
588 |
|
|
assertFalse(sm.contains(three)); |
589 |
|
|
assertFalse(sm.contains(four)); |
590 |
|
|
assertFalse(sm.contains(five)); |
591 |
|
|
Iterator i = sm.iterator(); |
592 |
|
|
Object k; |
593 |
|
|
k = (Integer)(i.next()); |
594 |
|
|
assertEquals(two, k); |
595 |
|
|
assertFalse(i.hasNext()); |
596 |
|
|
Iterator j = sm.iterator(); |
597 |
|
|
j.next(); |
598 |
|
|
j.remove(); |
599 |
|
|
assertFalse(set.contains(two)); |
600 |
|
|
assertEquals(4, set.size()); |
601 |
|
|
assertEquals(0, sm.size()); |
602 |
|
|
assertTrue(sm.isEmpty()); |
603 |
|
|
assertFalse(sm.remove(three)); |
604 |
|
|
assertEquals(4, set.size()); |
605 |
|
|
} |
606 |
|
|
|
607 |
|
|
/** |
608 |
|
|
* headSet returns set with keys in requested range |
609 |
|
|
*/ |
610 |
|
|
public void testHeadSetContents() { |
611 |
|
|
ConcurrentSkipListSet set = set5(); |
612 |
|
|
SortedSet sm = set.headSet(four); |
613 |
|
|
assertTrue(sm.contains(one)); |
614 |
|
|
assertTrue(sm.contains(two)); |
615 |
|
|
assertTrue(sm.contains(three)); |
616 |
|
|
assertFalse(sm.contains(four)); |
617 |
|
|
assertFalse(sm.contains(five)); |
618 |
|
|
Iterator i = sm.iterator(); |
619 |
|
|
Object k; |
620 |
|
|
k = (Integer)(i.next()); |
621 |
|
|
assertEquals(one, k); |
622 |
|
|
k = (Integer)(i.next()); |
623 |
|
|
assertEquals(two, k); |
624 |
|
|
k = (Integer)(i.next()); |
625 |
|
|
assertEquals(three, k); |
626 |
|
|
assertFalse(i.hasNext()); |
627 |
|
|
sm.clear(); |
628 |
|
|
assertTrue(sm.isEmpty()); |
629 |
|
|
assertEquals(2, set.size()); |
630 |
|
|
assertEquals(four, set.first()); |
631 |
|
|
} |
632 |
|
|
|
633 |
|
|
/** |
634 |
|
|
* tailSet returns set with keys in requested range |
635 |
|
|
*/ |
636 |
|
|
public void testTailSetContents() { |
637 |
|
|
ConcurrentSkipListSet set = set5(); |
638 |
|
|
SortedSet sm = set.tailSet(two); |
639 |
|
|
assertFalse(sm.contains(one)); |
640 |
|
|
assertTrue(sm.contains(two)); |
641 |
|
|
assertTrue(sm.contains(three)); |
642 |
|
|
assertTrue(sm.contains(four)); |
643 |
|
|
assertTrue(sm.contains(five)); |
644 |
|
|
Iterator i = sm.iterator(); |
645 |
|
|
Object k; |
646 |
|
|
k = (Integer)(i.next()); |
647 |
|
|
assertEquals(two, k); |
648 |
|
|
k = (Integer)(i.next()); |
649 |
|
|
assertEquals(three, k); |
650 |
|
|
k = (Integer)(i.next()); |
651 |
|
|
assertEquals(four, k); |
652 |
|
|
k = (Integer)(i.next()); |
653 |
|
|
assertEquals(five, k); |
654 |
|
|
assertFalse(i.hasNext()); |
655 |
|
|
|
656 |
|
|
SortedSet ssm = sm.tailSet(four); |
657 |
|
|
assertEquals(four, ssm.first()); |
658 |
|
|
assertEquals(five, ssm.last()); |
659 |
|
|
assertTrue(ssm.remove(four)); |
660 |
|
|
assertEquals(1, ssm.size()); |
661 |
|
|
assertEquals(3, sm.size()); |
662 |
|
|
assertEquals(4, set.size()); |
663 |
|
|
} |
664 |
|
|
|
665 |
dl |
1.2 |
Random rnd = new Random(666); |
666 |
|
|
|
667 |
|
|
/** |
668 |
|
|
* Subsets of subsets subdivide correctly |
669 |
|
|
*/ |
670 |
jsr166 |
1.10 |
public void testRecursiveSubSets() throws Exception { |
671 |
jsr166 |
1.16 |
int setSize = expensiveTests ? 1000 : 100; |
672 |
jsr166 |
1.7 |
Class cl = ConcurrentSkipListSet.class; |
673 |
dl |
1.2 |
|
674 |
|
|
NavigableSet<Integer> set = newSet(cl); |
675 |
jsr166 |
1.23 |
BitSet bs = new BitSet(setSize); |
676 |
dl |
1.2 |
|
677 |
jsr166 |
1.23 |
populate(set, setSize, bs); |
678 |
|
|
check(set, 0, setSize - 1, true, bs); |
679 |
|
|
check(set.descendingSet(), 0, setSize - 1, false, bs); |
680 |
|
|
|
681 |
|
|
mutateSet(set, 0, setSize - 1, bs); |
682 |
|
|
check(set, 0, setSize - 1, true, bs); |
683 |
|
|
check(set.descendingSet(), 0, setSize - 1, false, bs); |
684 |
dl |
1.2 |
|
685 |
dl |
1.3 |
bashSubSet(set.subSet(0, true, setSize, false), |
686 |
jsr166 |
1.23 |
0, setSize - 1, true, bs); |
687 |
dl |
1.2 |
} |
688 |
|
|
|
689 |
jsr166 |
1.29 |
/** |
690 |
|
|
* addAll is idempotent |
691 |
|
|
*/ |
692 |
|
|
public void testAddAll_idempotent() throws Exception { |
693 |
|
|
Set x = populatedSet(SIZE); |
694 |
|
|
Set y = new ConcurrentSkipListSet(x); |
695 |
|
|
y.addAll(x); |
696 |
|
|
assertEquals(x, y); |
697 |
|
|
assertEquals(y, x); |
698 |
|
|
} |
699 |
|
|
|
700 |
jsr166 |
1.10 |
static NavigableSet<Integer> newSet(Class cl) throws Exception { |
701 |
jsr166 |
1.44 |
NavigableSet<Integer> result = |
702 |
|
|
(NavigableSet<Integer>) cl.getConstructor().newInstance(); |
703 |
jsr166 |
1.24 |
assertEquals(0, result.size()); |
704 |
dl |
1.2 |
assertFalse(result.iterator().hasNext()); |
705 |
|
|
return result; |
706 |
|
|
} |
707 |
|
|
|
708 |
jsr166 |
1.23 |
void populate(NavigableSet<Integer> set, int limit, BitSet bs) { |
709 |
dl |
1.2 |
for (int i = 0, n = 2 * limit / 3; i < n; i++) { |
710 |
|
|
int element = rnd.nextInt(limit); |
711 |
jsr166 |
1.23 |
put(set, element, bs); |
712 |
dl |
1.2 |
} |
713 |
|
|
} |
714 |
|
|
|
715 |
jsr166 |
1.23 |
void mutateSet(NavigableSet<Integer> set, int min, int max, BitSet bs) { |
716 |
dl |
1.2 |
int size = set.size(); |
717 |
|
|
int rangeSize = max - min + 1; |
718 |
|
|
|
719 |
|
|
// Remove a bunch of entries directly |
720 |
|
|
for (int i = 0, n = rangeSize / 2; i < n; i++) { |
721 |
jsr166 |
1.23 |
remove(set, min - 5 + rnd.nextInt(rangeSize + 10), bs); |
722 |
dl |
1.2 |
} |
723 |
|
|
|
724 |
|
|
// Remove a bunch of entries with iterator |
725 |
jsr166 |
1.5 |
for (Iterator<Integer> it = set.iterator(); it.hasNext(); ) { |
726 |
dl |
1.2 |
if (rnd.nextBoolean()) { |
727 |
|
|
bs.clear(it.next()); |
728 |
|
|
it.remove(); |
729 |
|
|
} |
730 |
|
|
} |
731 |
|
|
|
732 |
|
|
// Add entries till we're back to original size |
733 |
|
|
while (set.size() < size) { |
734 |
|
|
int element = min + rnd.nextInt(rangeSize); |
735 |
jsr166 |
1.34 |
assertTrue(element >= min && element <= max); |
736 |
jsr166 |
1.23 |
put(set, element, bs); |
737 |
dl |
1.2 |
} |
738 |
|
|
} |
739 |
|
|
|
740 |
jsr166 |
1.23 |
void mutateSubSet(NavigableSet<Integer> set, int min, int max, |
741 |
|
|
BitSet bs) { |
742 |
dl |
1.2 |
int size = set.size(); |
743 |
|
|
int rangeSize = max - min + 1; |
744 |
|
|
|
745 |
|
|
// Remove a bunch of entries directly |
746 |
|
|
for (int i = 0, n = rangeSize / 2; i < n; i++) { |
747 |
jsr166 |
1.23 |
remove(set, min - 5 + rnd.nextInt(rangeSize + 10), bs); |
748 |
dl |
1.2 |
} |
749 |
|
|
|
750 |
|
|
// Remove a bunch of entries with iterator |
751 |
jsr166 |
1.5 |
for (Iterator<Integer> it = set.iterator(); it.hasNext(); ) { |
752 |
dl |
1.2 |
if (rnd.nextBoolean()) { |
753 |
|
|
bs.clear(it.next()); |
754 |
|
|
it.remove(); |
755 |
|
|
} |
756 |
|
|
} |
757 |
|
|
|
758 |
|
|
// Add entries till we're back to original size |
759 |
|
|
while (set.size() < size) { |
760 |
|
|
int element = min - 5 + rnd.nextInt(rangeSize + 10); |
761 |
jsr166 |
1.34 |
if (element >= min && element <= max) { |
762 |
jsr166 |
1.23 |
put(set, element, bs); |
763 |
dl |
1.2 |
} else { |
764 |
|
|
try { |
765 |
|
|
set.add(element); |
766 |
jsr166 |
1.10 |
shouldThrow(); |
767 |
|
|
} catch (IllegalArgumentException success) {} |
768 |
dl |
1.2 |
} |
769 |
|
|
} |
770 |
|
|
} |
771 |
|
|
|
772 |
jsr166 |
1.23 |
void put(NavigableSet<Integer> set, int element, BitSet bs) { |
773 |
dl |
1.2 |
if (set.add(element)) |
774 |
|
|
bs.set(element); |
775 |
|
|
} |
776 |
|
|
|
777 |
jsr166 |
1.23 |
void remove(NavigableSet<Integer> set, int element, BitSet bs) { |
778 |
dl |
1.2 |
if (set.remove(element)) |
779 |
|
|
bs.clear(element); |
780 |
|
|
} |
781 |
|
|
|
782 |
|
|
void bashSubSet(NavigableSet<Integer> set, |
783 |
jsr166 |
1.23 |
int min, int max, boolean ascending, |
784 |
|
|
BitSet bs) { |
785 |
|
|
check(set, min, max, ascending, bs); |
786 |
|
|
check(set.descendingSet(), min, max, !ascending, bs); |
787 |
|
|
|
788 |
|
|
mutateSubSet(set, min, max, bs); |
789 |
|
|
check(set, min, max, ascending, bs); |
790 |
|
|
check(set.descendingSet(), min, max, !ascending, bs); |
791 |
dl |
1.2 |
|
792 |
|
|
// Recurse |
793 |
|
|
if (max - min < 2) |
794 |
|
|
return; |
795 |
|
|
int midPoint = (min + max) / 2; |
796 |
|
|
|
797 |
|
|
// headSet - pick direction and endpoint inclusion randomly |
798 |
|
|
boolean incl = rnd.nextBoolean(); |
799 |
dl |
1.3 |
NavigableSet<Integer> hm = set.headSet(midPoint, incl); |
800 |
dl |
1.2 |
if (ascending) { |
801 |
|
|
if (rnd.nextBoolean()) |
802 |
jsr166 |
1.23 |
bashSubSet(hm, min, midPoint - (incl ? 0 : 1), true, bs); |
803 |
dl |
1.2 |
else |
804 |
|
|
bashSubSet(hm.descendingSet(), min, midPoint - (incl ? 0 : 1), |
805 |
jsr166 |
1.23 |
false, bs); |
806 |
dl |
1.2 |
} else { |
807 |
|
|
if (rnd.nextBoolean()) |
808 |
jsr166 |
1.23 |
bashSubSet(hm, midPoint + (incl ? 0 : 1), max, false, bs); |
809 |
dl |
1.2 |
else |
810 |
|
|
bashSubSet(hm.descendingSet(), midPoint + (incl ? 0 : 1), max, |
811 |
jsr166 |
1.23 |
true, bs); |
812 |
dl |
1.2 |
} |
813 |
|
|
|
814 |
|
|
// tailSet - pick direction and endpoint inclusion randomly |
815 |
|
|
incl = rnd.nextBoolean(); |
816 |
dl |
1.3 |
NavigableSet<Integer> tm = set.tailSet(midPoint,incl); |
817 |
dl |
1.2 |
if (ascending) { |
818 |
|
|
if (rnd.nextBoolean()) |
819 |
jsr166 |
1.23 |
bashSubSet(tm, midPoint + (incl ? 0 : 1), max, true, bs); |
820 |
dl |
1.2 |
else |
821 |
|
|
bashSubSet(tm.descendingSet(), midPoint + (incl ? 0 : 1), max, |
822 |
jsr166 |
1.23 |
false, bs); |
823 |
dl |
1.2 |
} else { |
824 |
|
|
if (rnd.nextBoolean()) { |
825 |
jsr166 |
1.23 |
bashSubSet(tm, min, midPoint - (incl ? 0 : 1), false, bs); |
826 |
dl |
1.2 |
} else { |
827 |
|
|
bashSubSet(tm.descendingSet(), min, midPoint - (incl ? 0 : 1), |
828 |
jsr166 |
1.23 |
true, bs); |
829 |
dl |
1.2 |
} |
830 |
|
|
} |
831 |
|
|
|
832 |
|
|
// subSet - pick direction and endpoint inclusion randomly |
833 |
|
|
int rangeSize = max - min + 1; |
834 |
|
|
int[] endpoints = new int[2]; |
835 |
|
|
endpoints[0] = min + rnd.nextInt(rangeSize); |
836 |
|
|
endpoints[1] = min + rnd.nextInt(rangeSize); |
837 |
|
|
Arrays.sort(endpoints); |
838 |
|
|
boolean lowIncl = rnd.nextBoolean(); |
839 |
|
|
boolean highIncl = rnd.nextBoolean(); |
840 |
|
|
if (ascending) { |
841 |
dl |
1.3 |
NavigableSet<Integer> sm = set.subSet( |
842 |
dl |
1.2 |
endpoints[0], lowIncl, endpoints[1], highIncl); |
843 |
|
|
if (rnd.nextBoolean()) |
844 |
|
|
bashSubSet(sm, endpoints[0] + (lowIncl ? 0 : 1), |
845 |
jsr166 |
1.23 |
endpoints[1] - (highIncl ? 0 : 1), true, bs); |
846 |
dl |
1.2 |
else |
847 |
|
|
bashSubSet(sm.descendingSet(), endpoints[0] + (lowIncl ? 0 : 1), |
848 |
jsr166 |
1.23 |
endpoints[1] - (highIncl ? 0 : 1), false, bs); |
849 |
dl |
1.2 |
} else { |
850 |
dl |
1.3 |
NavigableSet<Integer> sm = set.subSet( |
851 |
dl |
1.2 |
endpoints[1], highIncl, endpoints[0], lowIncl); |
852 |
|
|
if (rnd.nextBoolean()) |
853 |
|
|
bashSubSet(sm, endpoints[0] + (lowIncl ? 0 : 1), |
854 |
jsr166 |
1.23 |
endpoints[1] - (highIncl ? 0 : 1), false, bs); |
855 |
dl |
1.2 |
else |
856 |
|
|
bashSubSet(sm.descendingSet(), endpoints[0] + (lowIncl ? 0 : 1), |
857 |
jsr166 |
1.23 |
endpoints[1] - (highIncl ? 0 : 1), true, bs); |
858 |
dl |
1.2 |
} |
859 |
|
|
} |
860 |
|
|
|
861 |
|
|
/** |
862 |
|
|
* min and max are both inclusive. If max < min, interval is empty. |
863 |
|
|
*/ |
864 |
|
|
void check(NavigableSet<Integer> set, |
865 |
jsr166 |
1.23 |
final int min, final int max, final boolean ascending, |
866 |
|
|
final BitSet bs) { |
867 |
jsr166 |
1.21 |
class ReferenceSet { |
868 |
dl |
1.2 |
int lower(int element) { |
869 |
|
|
return ascending ? |
870 |
|
|
lowerAscending(element) : higherAscending(element); |
871 |
|
|
} |
872 |
|
|
int floor(int element) { |
873 |
|
|
return ascending ? |
874 |
|
|
floorAscending(element) : ceilingAscending(element); |
875 |
|
|
} |
876 |
|
|
int ceiling(int element) { |
877 |
|
|
return ascending ? |
878 |
|
|
ceilingAscending(element) : floorAscending(element); |
879 |
|
|
} |
880 |
|
|
int higher(int element) { |
881 |
|
|
return ascending ? |
882 |
|
|
higherAscending(element) : lowerAscending(element); |
883 |
|
|
} |
884 |
|
|
int first() { |
885 |
|
|
return ascending ? firstAscending() : lastAscending(); |
886 |
|
|
} |
887 |
|
|
int last() { |
888 |
|
|
return ascending ? lastAscending() : firstAscending(); |
889 |
|
|
} |
890 |
|
|
int lowerAscending(int element) { |
891 |
|
|
return floorAscending(element - 1); |
892 |
|
|
} |
893 |
|
|
int floorAscending(int element) { |
894 |
|
|
if (element < min) |
895 |
|
|
return -1; |
896 |
|
|
else if (element > max) |
897 |
|
|
element = max; |
898 |
|
|
|
899 |
|
|
// BitSet should support this! Test would run much faster |
900 |
|
|
while (element >= min) { |
901 |
|
|
if (bs.get(element)) |
902 |
jsr166 |
1.15 |
return element; |
903 |
dl |
1.2 |
element--; |
904 |
|
|
} |
905 |
|
|
return -1; |
906 |
|
|
} |
907 |
|
|
int ceilingAscending(int element) { |
908 |
|
|
if (element < min) |
909 |
|
|
element = min; |
910 |
|
|
else if (element > max) |
911 |
|
|
return -1; |
912 |
|
|
int result = bs.nextSetBit(element); |
913 |
|
|
return result > max ? -1 : result; |
914 |
|
|
} |
915 |
|
|
int higherAscending(int element) { |
916 |
|
|
return ceilingAscending(element + 1); |
917 |
|
|
} |
918 |
|
|
private int firstAscending() { |
919 |
|
|
int result = ceilingAscending(min); |
920 |
|
|
return result > max ? -1 : result; |
921 |
|
|
} |
922 |
|
|
private int lastAscending() { |
923 |
|
|
int result = floorAscending(max); |
924 |
|
|
return result < min ? -1 : result; |
925 |
|
|
} |
926 |
|
|
} |
927 |
|
|
ReferenceSet rs = new ReferenceSet(); |
928 |
|
|
|
929 |
|
|
// Test contents using containsElement |
930 |
|
|
int size = 0; |
931 |
|
|
for (int i = min; i <= max; i++) { |
932 |
|
|
boolean bsContainsI = bs.get(i); |
933 |
|
|
assertEquals(bsContainsI, set.contains(i)); |
934 |
|
|
if (bsContainsI) |
935 |
|
|
size++; |
936 |
|
|
} |
937 |
jsr166 |
1.25 |
assertEquals(size, set.size()); |
938 |
dl |
1.2 |
|
939 |
|
|
// Test contents using contains elementSet iterator |
940 |
|
|
int size2 = 0; |
941 |
|
|
int previousElement = -1; |
942 |
|
|
for (int element : set) { |
943 |
|
|
assertTrue(bs.get(element)); |
944 |
|
|
size2++; |
945 |
|
|
assertTrue(previousElement < 0 || (ascending ? |
946 |
|
|
element - previousElement > 0 : element - previousElement < 0)); |
947 |
|
|
previousElement = element; |
948 |
|
|
} |
949 |
|
|
assertEquals(size2, size); |
950 |
|
|
|
951 |
|
|
// Test navigation ops |
952 |
|
|
for (int element = min - 1; element <= max + 1; element++) { |
953 |
|
|
assertEq(set.lower(element), rs.lower(element)); |
954 |
|
|
assertEq(set.floor(element), rs.floor(element)); |
955 |
|
|
assertEq(set.higher(element), rs.higher(element)); |
956 |
|
|
assertEq(set.ceiling(element), rs.ceiling(element)); |
957 |
|
|
} |
958 |
|
|
|
959 |
|
|
// Test extrema |
960 |
|
|
if (set.size() != 0) { |
961 |
|
|
assertEq(set.first(), rs.first()); |
962 |
|
|
assertEq(set.last(), rs.last()); |
963 |
|
|
} else { |
964 |
|
|
assertEq(rs.first(), -1); |
965 |
|
|
assertEq(rs.last(), -1); |
966 |
|
|
try { |
967 |
|
|
set.first(); |
968 |
jsr166 |
1.10 |
shouldThrow(); |
969 |
|
|
} catch (NoSuchElementException success) {} |
970 |
dl |
1.2 |
try { |
971 |
|
|
set.last(); |
972 |
jsr166 |
1.10 |
shouldThrow(); |
973 |
|
|
} catch (NoSuchElementException success) {} |
974 |
dl |
1.2 |
} |
975 |
|
|
} |
976 |
|
|
|
977 |
|
|
static void assertEq(Integer i, int j) { |
978 |
|
|
if (i == null) |
979 |
|
|
assertEquals(j, -1); |
980 |
|
|
else |
981 |
|
|
assertEquals((int) i, j); |
982 |
|
|
} |
983 |
|
|
|
984 |
|
|
static boolean eq(Integer i, int j) { |
985 |
jsr166 |
1.41 |
return (i == null) ? j == -1 : i == j; |
986 |
dl |
1.2 |
} |
987 |
|
|
|
988 |
dl |
1.1 |
} |