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; |
9 |
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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.TreeSet; |
18 |
dl |
1.1 |
|
19 |
jsr166 |
1.30 |
import junit.framework.Test; |
20 |
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import junit.framework.TestSuite; |
21 |
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dl |
1.1 |
public class TreeSetTest 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(TreeSetTest.class); |
28 |
dl |
1.1 |
} |
29 |
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|
30 |
jsr166 |
1.4 |
static class MyReverseComparator implements Comparator { |
31 |
dl |
1.49 |
@SuppressWarnings("unchecked") |
32 |
dl |
1.1 |
public int compare(Object x, Object y) { |
33 |
jsr166 |
1.11 |
return ((Comparable)y).compareTo(x); |
34 |
dl |
1.1 |
} |
35 |
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} |
36 |
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37 |
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/** |
38 |
jsr166 |
1.27 |
* Returns a new set of given size containing consecutive |
39 |
dl |
1.49 |
* Items 0 ... n - 1. |
40 |
dl |
1.1 |
*/ |
41 |
dl |
1.49 |
private static TreeSet<Item> populatedSet(int n) { |
42 |
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TreeSet<Item> q = new TreeSet<>(); |
43 |
dl |
1.1 |
assertTrue(q.isEmpty()); |
44 |
jsr166 |
1.42 |
for (int i = n - 1; i >= 0; i -= 2) |
45 |
dl |
1.49 |
mustAdd(q, i); |
46 |
jsr166 |
1.31 |
for (int i = (n & 1); i < n; i += 2) |
47 |
dl |
1.49 |
mustAdd(q, i); |
48 |
dl |
1.1 |
assertFalse(q.isEmpty()); |
49 |
dl |
1.49 |
mustEqual(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 |
1.27 |
* Returns a new set of first 5 ints. |
55 |
dl |
1.1 |
*/ |
56 |
dl |
1.49 |
private static TreeSet<Item> set5() { |
57 |
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TreeSet<Item> q = new TreeSet<Item>(); |
58 |
dl |
1.1 |
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); |
62 |
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q.add(four); |
63 |
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q.add(five); |
64 |
dl |
1.49 |
mustEqual(5, q.size()); |
65 |
dl |
1.1 |
return q; |
66 |
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} |
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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 |
dl |
1.49 |
mustEqual(0, new TreeSet<Item>().size()); |
73 |
dl |
1.1 |
} |
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 |
dl |
1.49 |
new TreeSet<Item>((Collection<Item>)null); |
81 |
dl |
1.1 |
shouldThrow(); |
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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 |
dl |
1.49 |
new TreeSet<Item>(Arrays.asList(new Item[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 |
dl |
1.49 |
Item[] items = new Item[2]; |
100 |
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items[1] = zero; |
101 |
dl |
1.1 |
try { |
102 |
dl |
1.49 |
new TreeSet<Item>(Arrays.asList(items)); |
103 |
dl |
1.1 |
shouldThrow(); |
104 |
jsr166 |
1.8 |
} catch (NullPointerException success) {} |
105 |
dl |
1.1 |
} |
106 |
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107 |
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/** |
108 |
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* Set contains all elements of collection used to initialize |
109 |
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*/ |
110 |
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public void testConstructor6() { |
111 |
dl |
1.49 |
Item[] items = defaultItems; |
112 |
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TreeSet<Item> q = new TreeSet<Item>(Arrays.asList(items)); |
113 |
jsr166 |
1.9 |
for (int i = 0; i < SIZE; ++i) |
114 |
dl |
1.49 |
mustEqual(items[i], q.pollFirst()); |
115 |
dl |
1.1 |
} |
116 |
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117 |
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/** |
118 |
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* The comparator used in constructor is used |
119 |
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*/ |
120 |
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public void testConstructor7() { |
121 |
jsr166 |
1.9 |
MyReverseComparator cmp = new MyReverseComparator(); |
122 |
dl |
1.49 |
@SuppressWarnings("unchecked") |
123 |
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TreeSet<Item> q = new TreeSet<Item>(cmp); |
124 |
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mustEqual(cmp, q.comparator()); |
125 |
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Item[] items = defaultItems; |
126 |
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q.addAll(Arrays.asList(items)); |
127 |
jsr166 |
1.40 |
for (int i = SIZE - 1; i >= 0; --i) |
128 |
dl |
1.49 |
mustEqual(items[i], q.pollFirst()); |
129 |
dl |
1.1 |
} |
130 |
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131 |
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/** |
132 |
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* isEmpty is true before add, false after |
133 |
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*/ |
134 |
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public void testEmpty() { |
135 |
dl |
1.49 |
TreeSet<Item> q = new TreeSet<Item>(); |
136 |
dl |
1.1 |
assertTrue(q.isEmpty()); |
137 |
dl |
1.49 |
q.add(one); |
138 |
dl |
1.1 |
assertFalse(q.isEmpty()); |
139 |
dl |
1.49 |
q.add(two); |
140 |
dl |
1.1 |
q.pollFirst(); |
141 |
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q.pollFirst(); |
142 |
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assertTrue(q.isEmpty()); |
143 |
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} |
144 |
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145 |
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/** |
146 |
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* size changes when elements added and removed |
147 |
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*/ |
148 |
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public void testSize() { |
149 |
dl |
1.49 |
TreeSet<Item> q = populatedSet(SIZE); |
150 |
dl |
1.1 |
for (int i = 0; i < SIZE; ++i) { |
151 |
dl |
1.49 |
mustEqual(SIZE - i, q.size()); |
152 |
dl |
1.1 |
q.pollFirst(); |
153 |
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} |
154 |
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for (int i = 0; i < SIZE; ++i) { |
155 |
dl |
1.49 |
mustEqual(i, q.size()); |
156 |
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mustAdd(q, i); |
157 |
dl |
1.1 |
} |
158 |
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} |
159 |
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160 |
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/** |
161 |
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* add(null) throws NPE if nonempty |
162 |
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*/ |
163 |
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public void testAddNull() { |
164 |
dl |
1.49 |
TreeSet<Item> q = populatedSet(SIZE); |
165 |
jsr166 |
1.7 |
try { |
166 |
dl |
1.1 |
q.add(null); |
167 |
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shouldThrow(); |
168 |
jsr166 |
1.8 |
} catch (NullPointerException success) {} |
169 |
dl |
1.1 |
} |
170 |
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171 |
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/** |
172 |
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* Add of comparable element succeeds |
173 |
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*/ |
174 |
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public void testAdd() { |
175 |
dl |
1.49 |
TreeSet<Item> q = new TreeSet<Item>(); |
176 |
dl |
1.1 |
assertTrue(q.add(zero)); |
177 |
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assertTrue(q.add(one)); |
178 |
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} |
179 |
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180 |
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/** |
181 |
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* Add of duplicate element fails |
182 |
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*/ |
183 |
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public void testAddDup() { |
184 |
dl |
1.49 |
TreeSet<Item> q = new TreeSet<Item>(); |
185 |
dl |
1.1 |
assertTrue(q.add(zero)); |
186 |
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assertFalse(q.add(zero)); |
187 |
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} |
188 |
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189 |
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/** |
190 |
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* Add of non-Comparable throws CCE |
191 |
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*/ |
192 |
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public void testAddNonComparable() { |
193 |
dl |
1.49 |
TreeSet<Object> q = new TreeSet<Object>(); |
194 |
dl |
1.1 |
try { |
195 |
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q.add(new Object()); |
196 |
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q.add(new Object()); |
197 |
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shouldThrow(); |
198 |
jsr166 |
1.8 |
} catch (ClassCastException success) {} |
199 |
dl |
1.1 |
} |
200 |
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201 |
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/** |
202 |
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* addAll(null) throws NPE |
203 |
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*/ |
204 |
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public void testAddAll1() { |
205 |
dl |
1.49 |
TreeSet<Item> q = new TreeSet<Item>(); |
206 |
dl |
1.1 |
try { |
207 |
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q.addAll(null); |
208 |
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shouldThrow(); |
209 |
jsr166 |
1.8 |
} catch (NullPointerException success) {} |
210 |
dl |
1.1 |
} |
211 |
jsr166 |
1.14 |
|
212 |
dl |
1.1 |
/** |
213 |
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* addAll of a collection with null elements throws NPE |
214 |
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*/ |
215 |
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public void testAddAll2() { |
216 |
dl |
1.49 |
TreeSet<Item> q = new TreeSet<Item>(); |
217 |
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Item[] items = new Item[2]; |
218 |
dl |
1.1 |
try { |
219 |
dl |
1.49 |
q.addAll(Arrays.asList(items)); |
220 |
dl |
1.1 |
shouldThrow(); |
221 |
jsr166 |
1.8 |
} catch (NullPointerException success) {} |
222 |
dl |
1.1 |
} |
223 |
jsr166 |
1.14 |
|
224 |
dl |
1.1 |
/** |
225 |
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* addAll of a collection with any null elements throws NPE after |
226 |
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* possibly adding some elements |
227 |
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*/ |
228 |
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public void testAddAll3() { |
229 |
dl |
1.49 |
TreeSet<Item> q = new TreeSet<Item>(); |
230 |
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Item[] items = new Item[2]; |
231 |
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items[0] = zero; |
232 |
dl |
1.1 |
try { |
233 |
dl |
1.49 |
q.addAll(Arrays.asList(items)); |
234 |
dl |
1.1 |
shouldThrow(); |
235 |
jsr166 |
1.8 |
} catch (NullPointerException success) {} |
236 |
dl |
1.1 |
} |
237 |
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|
238 |
|
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/** |
239 |
|
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* Set contains all elements of successful addAll |
240 |
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*/ |
241 |
|
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public void testAddAll5() { |
242 |
dl |
1.49 |
Item[] empty = new Item[0]; |
243 |
|
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Item[] items = defaultItems; |
244 |
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TreeSet<Item> q = new TreeSet<Item>(); |
245 |
jsr166 |
1.9 |
assertFalse(q.addAll(Arrays.asList(empty))); |
246 |
dl |
1.49 |
assertTrue(q.addAll(Arrays.asList(items))); |
247 |
jsr166 |
1.9 |
for (int i = 0; i < SIZE; ++i) |
248 |
dl |
1.49 |
mustEqual(i, q.pollFirst()); |
249 |
dl |
1.1 |
} |
250 |
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251 |
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/** |
252 |
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* pollFirst succeeds unless empty |
253 |
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*/ |
254 |
|
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public void testPollFirst() { |
255 |
dl |
1.49 |
TreeSet<Item> q = populatedSet(SIZE); |
256 |
dl |
1.1 |
for (int i = 0; i < SIZE; ++i) { |
257 |
dl |
1.49 |
mustEqual(i, q.pollFirst()); |
258 |
dl |
1.1 |
} |
259 |
jsr166 |
1.7 |
assertNull(q.pollFirst()); |
260 |
dl |
1.1 |
} |
261 |
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|
262 |
|
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/** |
263 |
|
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* pollLast succeeds unless empty |
264 |
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*/ |
265 |
|
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public void testPollLast() { |
266 |
dl |
1.49 |
TreeSet<Item> q = populatedSet(SIZE); |
267 |
jsr166 |
1.40 |
for (int i = SIZE - 1; i >= 0; --i) { |
268 |
dl |
1.49 |
mustEqual(i, q.pollLast()); |
269 |
dl |
1.1 |
} |
270 |
jsr166 |
1.7 |
assertNull(q.pollFirst()); |
271 |
dl |
1.1 |
} |
272 |
|
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|
273 |
|
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/** |
274 |
|
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* remove(x) removes x and returns true if present |
275 |
|
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*/ |
276 |
|
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public void testRemoveElement() { |
277 |
dl |
1.49 |
TreeSet<Item> q = populatedSet(SIZE); |
278 |
jsr166 |
1.31 |
for (int i = 1; i < SIZE; i += 2) { |
279 |
dl |
1.49 |
mustContain(q, i); |
280 |
|
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mustRemove(q, i); |
281 |
|
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mustNotContain(q, i); |
282 |
|
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mustContain(q, i - 1); |
283 |
dl |
1.1 |
} |
284 |
jsr166 |
1.31 |
for (int i = 0; i < SIZE; i += 2) { |
285 |
dl |
1.49 |
mustContain(q, i); |
286 |
|
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mustRemove(q, i); |
287 |
|
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mustNotContain(q, i); |
288 |
|
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mustNotRemove(q, i + 1); |
289 |
|
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mustNotContain(q, i + 1); |
290 |
dl |
1.1 |
} |
291 |
|
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assertTrue(q.isEmpty()); |
292 |
|
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} |
293 |
jsr166 |
1.4 |
|
294 |
dl |
1.1 |
/** |
295 |
|
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* contains(x) reports true when elements added but not yet removed |
296 |
|
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*/ |
297 |
|
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public void testContains() { |
298 |
dl |
1.49 |
TreeSet<Item> q = populatedSet(SIZE); |
299 |
dl |
1.1 |
for (int i = 0; i < SIZE; ++i) { |
300 |
dl |
1.49 |
mustContain(q, i); |
301 |
dl |
1.1 |
q.pollFirst(); |
302 |
dl |
1.49 |
mustNotContain(q, i); |
303 |
dl |
1.1 |
} |
304 |
|
|
} |
305 |
|
|
|
306 |
|
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/** |
307 |
|
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* clear removes all elements |
308 |
|
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*/ |
309 |
|
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public void testClear() { |
310 |
dl |
1.49 |
TreeSet<Item> q = populatedSet(SIZE); |
311 |
dl |
1.1 |
q.clear(); |
312 |
|
|
assertTrue(q.isEmpty()); |
313 |
dl |
1.49 |
mustEqual(0, q.size()); |
314 |
|
|
q.add(one); |
315 |
dl |
1.1 |
assertFalse(q.isEmpty()); |
316 |
|
|
q.clear(); |
317 |
|
|
assertTrue(q.isEmpty()); |
318 |
|
|
} |
319 |
|
|
|
320 |
|
|
/** |
321 |
|
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* containsAll(c) is true when c contains a subset of elements |
322 |
|
|
*/ |
323 |
|
|
public void testContainsAll() { |
324 |
dl |
1.49 |
TreeSet<Item> q = populatedSet(SIZE); |
325 |
|
|
TreeSet<Item> p = new TreeSet<Item>(); |
326 |
dl |
1.1 |
for (int i = 0; i < SIZE; ++i) { |
327 |
|
|
assertTrue(q.containsAll(p)); |
328 |
|
|
assertFalse(p.containsAll(q)); |
329 |
dl |
1.49 |
mustAdd(p, i); |
330 |
dl |
1.1 |
} |
331 |
|
|
assertTrue(p.containsAll(q)); |
332 |
|
|
} |
333 |
|
|
|
334 |
|
|
/** |
335 |
|
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* retainAll(c) retains only those elements of c and reports true if changed |
336 |
|
|
*/ |
337 |
|
|
public void testRetainAll() { |
338 |
dl |
1.49 |
TreeSet<Item> q = populatedSet(SIZE); |
339 |
|
|
TreeSet<Item> p = populatedSet(SIZE); |
340 |
dl |
1.1 |
for (int i = 0; i < SIZE; ++i) { |
341 |
|
|
boolean changed = q.retainAll(p); |
342 |
|
|
if (i == 0) |
343 |
|
|
assertFalse(changed); |
344 |
|
|
else |
345 |
|
|
assertTrue(changed); |
346 |
|
|
|
347 |
|
|
assertTrue(q.containsAll(p)); |
348 |
dl |
1.49 |
mustEqual(SIZE - i, q.size()); |
349 |
dl |
1.1 |
p.pollFirst(); |
350 |
|
|
} |
351 |
|
|
} |
352 |
|
|
|
353 |
|
|
/** |
354 |
|
|
* removeAll(c) removes only those elements of c and reports true if changed |
355 |
|
|
*/ |
356 |
|
|
public void testRemoveAll() { |
357 |
|
|
for (int i = 1; i < SIZE; ++i) { |
358 |
dl |
1.49 |
TreeSet<Item> q = populatedSet(SIZE); |
359 |
|
|
TreeSet<Item> p = populatedSet(i); |
360 |
dl |
1.1 |
assertTrue(q.removeAll(p)); |
361 |
dl |
1.49 |
mustEqual(SIZE - i, q.size()); |
362 |
dl |
1.1 |
for (int j = 0; j < i; ++j) { |
363 |
dl |
1.49 |
mustNotContain(q, p.pollFirst()); |
364 |
dl |
1.1 |
} |
365 |
|
|
} |
366 |
|
|
} |
367 |
|
|
|
368 |
|
|
/** |
369 |
|
|
* lower returns preceding element |
370 |
|
|
*/ |
371 |
|
|
public void testLower() { |
372 |
dl |
1.49 |
TreeSet<Item> q = set5(); |
373 |
dl |
1.1 |
Object e1 = q.lower(three); |
374 |
dl |
1.49 |
mustEqual(two, e1); |
375 |
dl |
1.1 |
|
376 |
|
|
Object e2 = q.lower(six); |
377 |
dl |
1.49 |
mustEqual(five, e2); |
378 |
dl |
1.1 |
|
379 |
|
|
Object e3 = q.lower(one); |
380 |
|
|
assertNull(e3); |
381 |
|
|
|
382 |
|
|
Object e4 = q.lower(zero); |
383 |
|
|
assertNull(e4); |
384 |
|
|
} |
385 |
|
|
|
386 |
|
|
/** |
387 |
|
|
* higher returns next element |
388 |
|
|
*/ |
389 |
|
|
public void testHigher() { |
390 |
dl |
1.49 |
TreeSet<Item> q = set5(); |
391 |
dl |
1.1 |
Object e1 = q.higher(three); |
392 |
dl |
1.49 |
mustEqual(four, e1); |
393 |
dl |
1.1 |
|
394 |
|
|
Object e2 = q.higher(zero); |
395 |
dl |
1.49 |
mustEqual(one, e2); |
396 |
dl |
1.1 |
|
397 |
|
|
Object e3 = q.higher(five); |
398 |
|
|
assertNull(e3); |
399 |
|
|
|
400 |
|
|
Object e4 = q.higher(six); |
401 |
|
|
assertNull(e4); |
402 |
|
|
} |
403 |
|
|
|
404 |
|
|
/** |
405 |
|
|
* floor returns preceding element |
406 |
|
|
*/ |
407 |
|
|
public void testFloor() { |
408 |
dl |
1.49 |
TreeSet<Item> q = set5(); |
409 |
dl |
1.1 |
Object e1 = q.floor(three); |
410 |
dl |
1.49 |
mustEqual(three, e1); |
411 |
dl |
1.1 |
|
412 |
|
|
Object e2 = q.floor(six); |
413 |
dl |
1.49 |
mustEqual(five, e2); |
414 |
dl |
1.1 |
|
415 |
|
|
Object e3 = q.floor(one); |
416 |
dl |
1.49 |
mustEqual(one, e3); |
417 |
dl |
1.1 |
|
418 |
|
|
Object e4 = q.floor(zero); |
419 |
|
|
assertNull(e4); |
420 |
|
|
} |
421 |
|
|
|
422 |
|
|
/** |
423 |
|
|
* ceiling returns next element |
424 |
|
|
*/ |
425 |
|
|
public void testCeiling() { |
426 |
dl |
1.49 |
TreeSet<Item> q = set5(); |
427 |
dl |
1.1 |
Object e1 = q.ceiling(three); |
428 |
dl |
1.49 |
mustEqual(three, e1); |
429 |
dl |
1.1 |
|
430 |
|
|
Object e2 = q.ceiling(zero); |
431 |
dl |
1.49 |
mustEqual(one, e2); |
432 |
dl |
1.1 |
|
433 |
|
|
Object e3 = q.ceiling(five); |
434 |
dl |
1.49 |
mustEqual(five, e3); |
435 |
dl |
1.1 |
|
436 |
|
|
Object e4 = q.ceiling(six); |
437 |
|
|
assertNull(e4); |
438 |
|
|
} |
439 |
|
|
|
440 |
|
|
/** |
441 |
jsr166 |
1.17 |
* toArray contains all elements in sorted order |
442 |
dl |
1.1 |
*/ |
443 |
|
|
public void testToArray() { |
444 |
dl |
1.49 |
TreeSet<Item> q = populatedSet(SIZE); |
445 |
jsr166 |
1.48 |
Object[] a = q.toArray(); |
446 |
|
|
assertSame(Object[].class, a.getClass()); |
447 |
|
|
for (Object o : a) |
448 |
|
|
assertSame(o, q.pollFirst()); |
449 |
|
|
assertTrue(q.isEmpty()); |
450 |
dl |
1.1 |
} |
451 |
|
|
|
452 |
|
|
/** |
453 |
jsr166 |
1.17 |
* toArray(a) contains all elements in sorted order |
454 |
dl |
1.1 |
*/ |
455 |
|
|
public void testToArray2() { |
456 |
dl |
1.49 |
TreeSet<Item> q = populatedSet(SIZE); |
457 |
|
|
Item[] items = new Item[SIZE]; |
458 |
|
|
Item[] array = q.toArray(items); |
459 |
|
|
assertSame(items, array); |
460 |
|
|
for (Item o : items) |
461 |
jsr166 |
1.48 |
assertSame(o, q.pollFirst()); |
462 |
|
|
assertTrue(q.isEmpty()); |
463 |
dl |
1.1 |
} |
464 |
jsr166 |
1.4 |
|
465 |
dl |
1.1 |
/** |
466 |
|
|
* iterator iterates through all elements |
467 |
|
|
*/ |
468 |
|
|
public void testIterator() { |
469 |
dl |
1.49 |
TreeSet<Item> q = populatedSet(SIZE); |
470 |
|
|
Iterator<? extends Item> it = q.iterator(); |
471 |
jsr166 |
1.34 |
int i; |
472 |
|
|
for (i = 0; it.hasNext(); i++) |
473 |
dl |
1.1 |
assertTrue(q.contains(it.next())); |
474 |
dl |
1.49 |
mustEqual(i, SIZE); |
475 |
jsr166 |
1.34 |
assertIteratorExhausted(it); |
476 |
dl |
1.1 |
} |
477 |
|
|
|
478 |
|
|
/** |
479 |
|
|
* iterator of empty set has no elements |
480 |
|
|
*/ |
481 |
|
|
public void testEmptyIterator() { |
482 |
dl |
1.49 |
assertIteratorExhausted(new TreeSet<Item>().iterator()); |
483 |
dl |
1.1 |
} |
484 |
|
|
|
485 |
|
|
/** |
486 |
|
|
* iterator.remove removes current element |
487 |
|
|
*/ |
488 |
jsr166 |
1.13 |
public void testIteratorRemove() { |
489 |
dl |
1.49 |
final TreeSet<Item> q = new TreeSet<Item>(); |
490 |
|
|
q.add(two); |
491 |
|
|
q.add(one); |
492 |
|
|
q.add(three); |
493 |
dl |
1.1 |
|
494 |
dl |
1.49 |
Iterator<? extends Item> it = q.iterator(); |
495 |
dl |
1.1 |
it.next(); |
496 |
|
|
it.remove(); |
497 |
|
|
|
498 |
|
|
it = q.iterator(); |
499 |
dl |
1.49 |
mustEqual(it.next(), two); |
500 |
|
|
mustEqual(it.next(), three); |
501 |
dl |
1.1 |
assertFalse(it.hasNext()); |
502 |
|
|
} |
503 |
|
|
|
504 |
|
|
/** |
505 |
|
|
* toString contains toStrings of elements |
506 |
|
|
*/ |
507 |
|
|
public void testToString() { |
508 |
dl |
1.49 |
TreeSet<Item> q = populatedSet(SIZE); |
509 |
dl |
1.1 |
String s = q.toString(); |
510 |
|
|
for (int i = 0; i < SIZE; ++i) { |
511 |
jsr166 |
1.22 |
assertTrue(s.contains(String.valueOf(i))); |
512 |
dl |
1.1 |
} |
513 |
jsr166 |
1.4 |
} |
514 |
dl |
1.1 |
|
515 |
|
|
/** |
516 |
jsr166 |
1.47 |
* A deserialized/reserialized set equals original |
517 |
dl |
1.1 |
*/ |
518 |
jsr166 |
1.8 |
public void testSerialization() throws Exception { |
519 |
dl |
1.49 |
NavigableSet<Item> x = populatedSet(SIZE); |
520 |
|
|
NavigableSet<Item> y = serialClone(x); |
521 |
jsr166 |
1.23 |
|
522 |
jsr166 |
1.29 |
assertNotSame(x, y); |
523 |
dl |
1.49 |
mustEqual(x.size(), y.size()); |
524 |
|
|
mustEqual(x, y); |
525 |
|
|
mustEqual(y, x); |
526 |
jsr166 |
1.23 |
while (!x.isEmpty()) { |
527 |
|
|
assertFalse(y.isEmpty()); |
528 |
dl |
1.49 |
mustEqual(x.pollFirst(), y.pollFirst()); |
529 |
jsr166 |
1.23 |
} |
530 |
|
|
assertTrue(y.isEmpty()); |
531 |
dl |
1.1 |
} |
532 |
|
|
|
533 |
|
|
/** |
534 |
|
|
* subSet returns set with keys in requested range |
535 |
|
|
*/ |
536 |
|
|
public void testSubSetContents() { |
537 |
dl |
1.49 |
TreeSet<Item> set = set5(); |
538 |
|
|
SortedSet<Item> sm = set.subSet(two, four); |
539 |
|
|
mustEqual(two, sm.first()); |
540 |
|
|
mustEqual(three, sm.last()); |
541 |
|
|
mustEqual(2, sm.size()); |
542 |
|
|
mustNotContain(sm, one); |
543 |
|
|
mustContain(sm, two); |
544 |
|
|
mustContain(sm, three); |
545 |
|
|
mustNotContain(sm, four); |
546 |
|
|
mustNotContain(sm, five); |
547 |
|
|
Iterator<? extends Item> i = sm.iterator(); |
548 |
|
|
Item k = i.next(); |
549 |
|
|
mustEqual(two, k); |
550 |
|
|
k = i.next(); |
551 |
|
|
mustEqual(three, k); |
552 |
dl |
1.1 |
assertFalse(i.hasNext()); |
553 |
dl |
1.49 |
Iterator<? extends Item> j = sm.iterator(); |
554 |
dl |
1.1 |
j.next(); |
555 |
|
|
j.remove(); |
556 |
dl |
1.49 |
mustNotContain(set, two); |
557 |
|
|
mustEqual(4, set.size()); |
558 |
|
|
mustEqual(1, sm.size()); |
559 |
|
|
mustEqual(three, sm.first()); |
560 |
|
|
mustEqual(three, sm.last()); |
561 |
|
|
mustRemove(sm, three); |
562 |
dl |
1.1 |
assertTrue(sm.isEmpty()); |
563 |
dl |
1.49 |
mustEqual(3, set.size()); |
564 |
dl |
1.1 |
} |
565 |
|
|
|
566 |
|
|
public void testSubSetContents2() { |
567 |
dl |
1.49 |
TreeSet<Item> set = set5(); |
568 |
|
|
SortedSet<Item> sm = set.subSet(two, three); |
569 |
|
|
mustEqual(1, sm.size()); |
570 |
|
|
mustEqual(two, sm.first()); |
571 |
|
|
mustEqual(two, sm.last()); |
572 |
|
|
mustNotContain(sm, one); |
573 |
|
|
mustContain(sm, two); |
574 |
|
|
mustNotContain(sm, three); |
575 |
|
|
mustNotContain(sm, four); |
576 |
|
|
mustNotContain(sm, five); |
577 |
|
|
Iterator<? extends Item> i = sm.iterator(); |
578 |
|
|
Item k = i.next(); |
579 |
|
|
mustEqual(two, k); |
580 |
dl |
1.1 |
assertFalse(i.hasNext()); |
581 |
dl |
1.49 |
Iterator<? extends Item> j = sm.iterator(); |
582 |
dl |
1.1 |
j.next(); |
583 |
|
|
j.remove(); |
584 |
dl |
1.49 |
mustNotContain(set, two); |
585 |
|
|
mustEqual(4, set.size()); |
586 |
|
|
mustEqual(0, sm.size()); |
587 |
dl |
1.1 |
assertTrue(sm.isEmpty()); |
588 |
dl |
1.49 |
mustNotRemove(sm, three); |
589 |
|
|
mustEqual(4, set.size()); |
590 |
dl |
1.1 |
} |
591 |
|
|
|
592 |
|
|
/** |
593 |
|
|
* headSet returns set with keys in requested range |
594 |
|
|
*/ |
595 |
|
|
public void testHeadSetContents() { |
596 |
dl |
1.49 |
TreeSet<Item> set = set5(); |
597 |
|
|
SortedSet<Item> sm = set.headSet(four); |
598 |
|
|
mustContain(sm, one); |
599 |
|
|
mustContain(sm, two); |
600 |
|
|
mustContain(sm, three); |
601 |
|
|
mustNotContain(sm, four); |
602 |
|
|
mustNotContain(sm, five); |
603 |
|
|
Iterator<? extends Item> i = sm.iterator(); |
604 |
|
|
Item k = i.next(); |
605 |
|
|
mustEqual(one, k); |
606 |
|
|
k = i.next(); |
607 |
|
|
mustEqual(two, k); |
608 |
|
|
k = i.next(); |
609 |
|
|
mustEqual(three, k); |
610 |
dl |
1.1 |
assertFalse(i.hasNext()); |
611 |
|
|
sm.clear(); |
612 |
|
|
assertTrue(sm.isEmpty()); |
613 |
dl |
1.49 |
mustEqual(2, set.size()); |
614 |
|
|
mustEqual(four, set.first()); |
615 |
dl |
1.1 |
} |
616 |
|
|
|
617 |
|
|
/** |
618 |
|
|
* tailSet returns set with keys in requested range |
619 |
|
|
*/ |
620 |
|
|
public void testTailSetContents() { |
621 |
dl |
1.49 |
TreeSet<Item> set = set5(); |
622 |
|
|
SortedSet<Item> sm = set.tailSet(two); |
623 |
|
|
mustNotContain(sm, one); |
624 |
|
|
mustContain(sm, two); |
625 |
|
|
mustContain(sm, three); |
626 |
|
|
mustContain(sm, four); |
627 |
|
|
mustContain(sm, five); |
628 |
|
|
Iterator<? extends Item> i = sm.iterator(); |
629 |
|
|
Item k = i.next(); |
630 |
|
|
mustEqual(two, k); |
631 |
|
|
k = i.next(); |
632 |
|
|
mustEqual(three, k); |
633 |
|
|
k = i.next(); |
634 |
|
|
mustEqual(four, k); |
635 |
|
|
k = i.next(); |
636 |
|
|
mustEqual(five, k); |
637 |
dl |
1.1 |
assertFalse(i.hasNext()); |
638 |
|
|
|
639 |
dl |
1.49 |
SortedSet<Item> ssm = sm.tailSet(four); |
640 |
|
|
mustEqual(four, ssm.first()); |
641 |
|
|
mustEqual(five, ssm.last()); |
642 |
|
|
mustRemove(ssm, four); |
643 |
|
|
mustEqual(1, ssm.size()); |
644 |
|
|
mustEqual(3, sm.size()); |
645 |
|
|
mustEqual(4, set.size()); |
646 |
dl |
1.1 |
} |
647 |
|
|
|
648 |
dl |
1.2 |
Random rnd = new Random(666); |
649 |
|
|
BitSet bs; |
650 |
|
|
|
651 |
|
|
/** |
652 |
|
|
* Subsets of subsets subdivide correctly |
653 |
|
|
*/ |
654 |
jsr166 |
1.10 |
public void testRecursiveSubSets() throws Exception { |
655 |
jsr166 |
1.16 |
int setSize = expensiveTests ? 1000 : 100; |
656 |
dl |
1.49 |
Class<?> cl = TreeSet.class; |
657 |
dl |
1.2 |
|
658 |
dl |
1.49 |
NavigableSet<Item> set = newSet(cl); |
659 |
dl |
1.2 |
bs = new BitSet(setSize); |
660 |
|
|
|
661 |
|
|
populate(set, setSize); |
662 |
|
|
check(set, 0, setSize - 1, true); |
663 |
|
|
check(set.descendingSet(), 0, setSize - 1, false); |
664 |
|
|
|
665 |
|
|
mutateSet(set, 0, setSize - 1); |
666 |
|
|
check(set, 0, setSize - 1, true); |
667 |
|
|
check(set.descendingSet(), 0, setSize - 1, false); |
668 |
|
|
|
669 |
dl |
1.49 |
bashSubSet(set.subSet(zero, true, itemFor(setSize), false), |
670 |
dl |
1.2 |
0, setSize - 1, true); |
671 |
|
|
} |
672 |
|
|
|
673 |
jsr166 |
1.28 |
/** |
674 |
|
|
* addAll is idempotent |
675 |
|
|
*/ |
676 |
|
|
public void testAddAll_idempotent() throws Exception { |
677 |
dl |
1.49 |
Set<Item> x = populatedSet(SIZE); |
678 |
|
|
Set<Item> y = new TreeSet<Item>(x); |
679 |
jsr166 |
1.28 |
y.addAll(x); |
680 |
dl |
1.49 |
mustEqual(x, y); |
681 |
|
|
mustEqual(y, x); |
682 |
jsr166 |
1.28 |
} |
683 |
|
|
|
684 |
dl |
1.49 |
static NavigableSet<Item> newSet(Class<?> cl) throws Exception { |
685 |
|
|
@SuppressWarnings("unchecked") |
686 |
|
|
NavigableSet<Item> result = |
687 |
|
|
(NavigableSet<Item>) cl.getConstructor().newInstance(); |
688 |
|
|
mustEqual(0, result.size()); |
689 |
dl |
1.2 |
assertFalse(result.iterator().hasNext()); |
690 |
|
|
return result; |
691 |
|
|
} |
692 |
|
|
|
693 |
dl |
1.49 |
void populate(NavigableSet<Item> set, int limit) { |
694 |
dl |
1.2 |
for (int i = 0, n = 2 * limit / 3; i < n; i++) { |
695 |
|
|
int element = rnd.nextInt(limit); |
696 |
|
|
put(set, element); |
697 |
|
|
} |
698 |
|
|
} |
699 |
|
|
|
700 |
dl |
1.49 |
void mutateSet(NavigableSet<Item> set, int min, int max) { |
701 |
dl |
1.2 |
int size = set.size(); |
702 |
|
|
int rangeSize = max - min + 1; |
703 |
|
|
|
704 |
|
|
// Remove a bunch of entries directly |
705 |
|
|
for (int i = 0, n = rangeSize / 2; i < n; i++) { |
706 |
|
|
remove(set, min - 5 + rnd.nextInt(rangeSize + 10)); |
707 |
|
|
} |
708 |
|
|
|
709 |
|
|
// Remove a bunch of entries with iterator |
710 |
dl |
1.49 |
for (Iterator<Item> it = set.iterator(); it.hasNext(); ) { |
711 |
dl |
1.2 |
if (rnd.nextBoolean()) { |
712 |
dl |
1.49 |
bs.clear(it.next().value); |
713 |
dl |
1.2 |
it.remove(); |
714 |
|
|
} |
715 |
|
|
} |
716 |
|
|
|
717 |
|
|
// Add entries till we're back to original size |
718 |
|
|
while (set.size() < size) { |
719 |
|
|
int element = min + rnd.nextInt(rangeSize); |
720 |
jsr166 |
1.33 |
assertTrue(element >= min && element <= max); |
721 |
dl |
1.2 |
put(set, element); |
722 |
|
|
} |
723 |
|
|
} |
724 |
|
|
|
725 |
dl |
1.49 |
void mutateSubSet(NavigableSet<Item> set, int min, int max) { |
726 |
dl |
1.2 |
int size = set.size(); |
727 |
|
|
int rangeSize = max - min + 1; |
728 |
|
|
|
729 |
|
|
// Remove a bunch of entries directly |
730 |
|
|
for (int i = 0, n = rangeSize / 2; i < n; i++) { |
731 |
|
|
remove(set, min - 5 + rnd.nextInt(rangeSize + 10)); |
732 |
|
|
} |
733 |
|
|
|
734 |
|
|
// Remove a bunch of entries with iterator |
735 |
dl |
1.49 |
for (Iterator<Item> it = set.iterator(); it.hasNext(); ) { |
736 |
dl |
1.2 |
if (rnd.nextBoolean()) { |
737 |
dl |
1.49 |
bs.clear(it.next().value); |
738 |
dl |
1.2 |
it.remove(); |
739 |
|
|
} |
740 |
|
|
} |
741 |
|
|
|
742 |
|
|
// Add entries till we're back to original size |
743 |
|
|
while (set.size() < size) { |
744 |
|
|
int element = min - 5 + rnd.nextInt(rangeSize + 10); |
745 |
jsr166 |
1.33 |
if (element >= min && element <= max) { |
746 |
dl |
1.2 |
put(set, element); |
747 |
|
|
} else { |
748 |
|
|
try { |
749 |
dl |
1.49 |
set.add(itemFor(element)); |
750 |
jsr166 |
1.10 |
shouldThrow(); |
751 |
|
|
} catch (IllegalArgumentException success) {} |
752 |
dl |
1.2 |
} |
753 |
|
|
} |
754 |
|
|
} |
755 |
|
|
|
756 |
dl |
1.49 |
void put(NavigableSet<Item> set, int element) { |
757 |
|
|
if (set.add(itemFor(element))) |
758 |
dl |
1.2 |
bs.set(element); |
759 |
|
|
} |
760 |
|
|
|
761 |
dl |
1.49 |
void remove(NavigableSet<Item> set, int element) { |
762 |
|
|
if (set.remove(itemFor(element))) |
763 |
dl |
1.2 |
bs.clear(element); |
764 |
|
|
} |
765 |
|
|
|
766 |
dl |
1.49 |
void bashSubSet(NavigableSet<Item> set, |
767 |
dl |
1.2 |
int min, int max, boolean ascending) { |
768 |
|
|
check(set, min, max, ascending); |
769 |
|
|
check(set.descendingSet(), min, max, !ascending); |
770 |
|
|
|
771 |
|
|
mutateSubSet(set, min, max); |
772 |
|
|
check(set, min, max, ascending); |
773 |
|
|
check(set.descendingSet(), min, max, !ascending); |
774 |
|
|
|
775 |
|
|
// Recurse |
776 |
|
|
if (max - min < 2) |
777 |
|
|
return; |
778 |
|
|
int midPoint = (min + max) / 2; |
779 |
|
|
|
780 |
|
|
// headSet - pick direction and endpoint inclusion randomly |
781 |
|
|
boolean incl = rnd.nextBoolean(); |
782 |
dl |
1.49 |
NavigableSet<Item> hm = set.headSet(itemFor(midPoint), incl); |
783 |
dl |
1.2 |
if (ascending) { |
784 |
|
|
if (rnd.nextBoolean()) |
785 |
|
|
bashSubSet(hm, min, midPoint - (incl ? 0 : 1), true); |
786 |
|
|
else |
787 |
|
|
bashSubSet(hm.descendingSet(), min, midPoint - (incl ? 0 : 1), |
788 |
|
|
false); |
789 |
|
|
} else { |
790 |
|
|
if (rnd.nextBoolean()) |
791 |
|
|
bashSubSet(hm, midPoint + (incl ? 0 : 1), max, false); |
792 |
|
|
else |
793 |
|
|
bashSubSet(hm.descendingSet(), midPoint + (incl ? 0 : 1), max, |
794 |
|
|
true); |
795 |
|
|
} |
796 |
|
|
|
797 |
|
|
// tailSet - pick direction and endpoint inclusion randomly |
798 |
|
|
incl = rnd.nextBoolean(); |
799 |
dl |
1.49 |
NavigableSet<Item> tm = set.tailSet(itemFor(midPoint),incl); |
800 |
dl |
1.2 |
if (ascending) { |
801 |
|
|
if (rnd.nextBoolean()) |
802 |
|
|
bashSubSet(tm, midPoint + (incl ? 0 : 1), max, true); |
803 |
|
|
else |
804 |
|
|
bashSubSet(tm.descendingSet(), midPoint + (incl ? 0 : 1), max, |
805 |
|
|
false); |
806 |
|
|
} else { |
807 |
|
|
if (rnd.nextBoolean()) { |
808 |
|
|
bashSubSet(tm, min, midPoint - (incl ? 0 : 1), false); |
809 |
|
|
} else { |
810 |
|
|
bashSubSet(tm.descendingSet(), min, midPoint - (incl ? 0 : 1), |
811 |
|
|
true); |
812 |
|
|
} |
813 |
|
|
} |
814 |
|
|
|
815 |
|
|
// subSet - pick direction and endpoint inclusion randomly |
816 |
|
|
int rangeSize = max - min + 1; |
817 |
|
|
int[] endpoints = new int[2]; |
818 |
|
|
endpoints[0] = min + rnd.nextInt(rangeSize); |
819 |
|
|
endpoints[1] = min + rnd.nextInt(rangeSize); |
820 |
|
|
Arrays.sort(endpoints); |
821 |
|
|
boolean lowIncl = rnd.nextBoolean(); |
822 |
|
|
boolean highIncl = rnd.nextBoolean(); |
823 |
|
|
if (ascending) { |
824 |
dl |
1.49 |
NavigableSet<Item> sm = set.subSet( |
825 |
|
|
itemFor(endpoints[0]), lowIncl, itemFor(endpoints[1]), highIncl); |
826 |
dl |
1.2 |
if (rnd.nextBoolean()) |
827 |
|
|
bashSubSet(sm, endpoints[0] + (lowIncl ? 0 : 1), |
828 |
|
|
endpoints[1] - (highIncl ? 0 : 1), true); |
829 |
|
|
else |
830 |
|
|
bashSubSet(sm.descendingSet(), endpoints[0] + (lowIncl ? 0 : 1), |
831 |
|
|
endpoints[1] - (highIncl ? 0 : 1), false); |
832 |
|
|
} else { |
833 |
dl |
1.49 |
NavigableSet<Item> sm = set.subSet( |
834 |
|
|
itemFor(endpoints[1]), highIncl, itemFor(endpoints[0]), lowIncl); |
835 |
dl |
1.2 |
if (rnd.nextBoolean()) |
836 |
|
|
bashSubSet(sm, endpoints[0] + (lowIncl ? 0 : 1), |
837 |
|
|
endpoints[1] - (highIncl ? 0 : 1), false); |
838 |
|
|
else |
839 |
|
|
bashSubSet(sm.descendingSet(), endpoints[0] + (lowIncl ? 0 : 1), |
840 |
|
|
endpoints[1] - (highIncl ? 0 : 1), true); |
841 |
|
|
} |
842 |
|
|
} |
843 |
|
|
|
844 |
|
|
/** |
845 |
|
|
* min and max are both inclusive. If max < min, interval is empty. |
846 |
|
|
*/ |
847 |
dl |
1.49 |
void check(NavigableSet<Item> set, |
848 |
dl |
1.2 |
final int min, final int max, final boolean ascending) { |
849 |
jsr166 |
1.21 |
class ReferenceSet { |
850 |
dl |
1.2 |
int lower(int element) { |
851 |
|
|
return ascending ? |
852 |
|
|
lowerAscending(element) : higherAscending(element); |
853 |
|
|
} |
854 |
|
|
int floor(int element) { |
855 |
|
|
return ascending ? |
856 |
|
|
floorAscending(element) : ceilingAscending(element); |
857 |
|
|
} |
858 |
|
|
int ceiling(int element) { |
859 |
|
|
return ascending ? |
860 |
|
|
ceilingAscending(element) : floorAscending(element); |
861 |
|
|
} |
862 |
|
|
int higher(int element) { |
863 |
|
|
return ascending ? |
864 |
|
|
higherAscending(element) : lowerAscending(element); |
865 |
|
|
} |
866 |
|
|
int first() { |
867 |
|
|
return ascending ? firstAscending() : lastAscending(); |
868 |
|
|
} |
869 |
|
|
int last() { |
870 |
|
|
return ascending ? lastAscending() : firstAscending(); |
871 |
|
|
} |
872 |
|
|
int lowerAscending(int element) { |
873 |
|
|
return floorAscending(element - 1); |
874 |
|
|
} |
875 |
|
|
int floorAscending(int element) { |
876 |
|
|
if (element < min) |
877 |
|
|
return -1; |
878 |
|
|
else if (element > max) |
879 |
|
|
element = max; |
880 |
|
|
|
881 |
|
|
// BitSet should support this! Test would run much faster |
882 |
|
|
while (element >= min) { |
883 |
|
|
if (bs.get(element)) |
884 |
jsr166 |
1.15 |
return element; |
885 |
dl |
1.2 |
element--; |
886 |
|
|
} |
887 |
|
|
return -1; |
888 |
|
|
} |
889 |
|
|
int ceilingAscending(int element) { |
890 |
|
|
if (element < min) |
891 |
|
|
element = min; |
892 |
|
|
else if (element > max) |
893 |
|
|
return -1; |
894 |
|
|
int result = bs.nextSetBit(element); |
895 |
jsr166 |
1.41 |
return (result > max) ? -1 : result; |
896 |
dl |
1.2 |
} |
897 |
|
|
int higherAscending(int element) { |
898 |
|
|
return ceilingAscending(element + 1); |
899 |
|
|
} |
900 |
|
|
private int firstAscending() { |
901 |
|
|
int result = ceilingAscending(min); |
902 |
jsr166 |
1.41 |
return (result > max) ? -1 : result; |
903 |
dl |
1.2 |
} |
904 |
|
|
private int lastAscending() { |
905 |
|
|
int result = floorAscending(max); |
906 |
jsr166 |
1.41 |
return (result < min) ? -1 : result; |
907 |
dl |
1.2 |
} |
908 |
|
|
} |
909 |
|
|
ReferenceSet rs = new ReferenceSet(); |
910 |
|
|
|
911 |
|
|
// Test contents using containsElement |
912 |
|
|
int size = 0; |
913 |
|
|
for (int i = min; i <= max; i++) { |
914 |
|
|
boolean bsContainsI = bs.get(i); |
915 |
dl |
1.49 |
mustEqual(bsContainsI, set.contains(itemFor(i))); |
916 |
dl |
1.2 |
if (bsContainsI) |
917 |
|
|
size++; |
918 |
|
|
} |
919 |
dl |
1.49 |
mustEqual(size, set.size()); |
920 |
dl |
1.2 |
|
921 |
|
|
// Test contents using contains elementSet iterator |
922 |
|
|
int size2 = 0; |
923 |
|
|
int previousElement = -1; |
924 |
dl |
1.49 |
for (Item element : set) { |
925 |
|
|
assertTrue(bs.get(element.value)); |
926 |
dl |
1.2 |
size2++; |
927 |
|
|
assertTrue(previousElement < 0 || (ascending ? |
928 |
dl |
1.49 |
element.value - previousElement > 0 : element.value - previousElement < 0)); |
929 |
|
|
previousElement = element.value; |
930 |
dl |
1.2 |
} |
931 |
dl |
1.49 |
mustEqual(size2, size); |
932 |
dl |
1.2 |
|
933 |
|
|
// Test navigation ops |
934 |
|
|
for (int element = min - 1; element <= max + 1; element++) { |
935 |
dl |
1.49 |
Item e = itemFor(element); |
936 |
|
|
assertEq(set.lower(e), rs.lower(element)); |
937 |
|
|
assertEq(set.floor(e), rs.floor(element)); |
938 |
|
|
assertEq(set.higher(e), rs.higher(element)); |
939 |
|
|
assertEq(set.ceiling(e), rs.ceiling(element)); |
940 |
dl |
1.2 |
} |
941 |
|
|
|
942 |
|
|
// Test extrema |
943 |
|
|
if (set.size() != 0) { |
944 |
|
|
assertEq(set.first(), rs.first()); |
945 |
|
|
assertEq(set.last(), rs.last()); |
946 |
|
|
} else { |
947 |
dl |
1.49 |
mustEqual(rs.first(), -1); |
948 |
|
|
mustEqual(rs.last(), -1); |
949 |
dl |
1.2 |
try { |
950 |
|
|
set.first(); |
951 |
jsr166 |
1.10 |
shouldThrow(); |
952 |
|
|
} catch (NoSuchElementException success) {} |
953 |
dl |
1.2 |
try { |
954 |
|
|
set.last(); |
955 |
jsr166 |
1.10 |
shouldThrow(); |
956 |
|
|
} catch (NoSuchElementException success) {} |
957 |
dl |
1.2 |
} |
958 |
|
|
} |
959 |
|
|
|
960 |
dl |
1.49 |
static void assertEq(Item i, int j) { |
961 |
dl |
1.2 |
if (i == null) |
962 |
dl |
1.49 |
mustEqual(j, -1); |
963 |
dl |
1.2 |
else |
964 |
dl |
1.49 |
mustEqual(i, j); |
965 |
dl |
1.2 |
} |
966 |
|
|
|
967 |
dl |
1.49 |
static boolean eq(Item i, int j) { |
968 |
|
|
return (i == null) ? j == -1 : i.value == j; |
969 |
dl |
1.2 |
} |
970 |
|
|
|
971 |
dl |
1.1 |
} |