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root/jsr166/jsr166/src/test/tck/ConcurrentHashMap8Test.java

Comparing jsr166/src/test/tck/ConcurrentHashMap8Test.java (file contents):
Revision 1.7 by jsr166, Thu Apr 11 19:54:13 2013 UTC vs.
Revision 1.8 by jsr166, Thu Apr 11 20:03:44 2013 UTC

#	Line 34 | Line 34 | public class ConcurrentHashMap8Test exte
34		return map;
35		}
36
37	–	// classes for testing Comparable fallbacks
38	–	static class BI implements Comparable<BI> {
39	–	private final int value;
40	–	BI(int value) { this.value = value; }
41	–	public int compareTo(BI other) {
42	–	return Integer.compare(value, other.value);
43	–	}
44	–	public boolean equals(Object x) {
45	–	return (x instanceof BI) && ((BI)x).value == value;
46	–	}
47	–	public int hashCode() { return 42; }
48	–	}
49	–	static class CI extends BI { CI(int value) { super(value); } }
50	–	static class DI extends BI { DI(int value) { super(value); } }
51	–
52	–	static class BS implements Comparable<BS> {
53	–	private final String value;
54	–	BS(String value) { this.value = value; }
55	–	public int compareTo(BS other) {
56	–	return value.compareTo(other.value);
57	–	}
58	–	public boolean equals(Object x) {
59	–	return (x instanceof BS) && value.equals(((BS)x).value);
60	–	}
61	–	public int hashCode() { return 42; }
62	–	}
63	–
64	–	static class LexicographicList<E extends Comparable<E>> extends ArrayList<E>
65	–	implements Comparable<LexicographicList<E>> {
66	–	LexicographicList(Collection<E> c) { super(c); }
67	–	LexicographicList(E e) { super(Collections.singleton(e)); }
68	–	public int compareTo(LexicographicList<E> other) {
69	–	int common = Math.min(size(), other.size());
70	–	int r = 0;
71	–	for (int i = 0; i < common; i++) {
72	–	if ((r = get(i).compareTo(other.get(i))) != 0)
73	–	break;
74	–	}
75	–	if (r == 0)
76	–	r = Integer.compare(size(), other.size());
77	–	return r;
78	–	}
79	–	private static final long serialVersionUID = 0;
80	–	}
81	–
82	–	/**
83	–	* Inserted elements that are subclasses of the same Comparable
84	–	* class are found.
85	–	*/
86	–	public void testComparableFamily() {
87	–	ConcurrentHashMap<BI, Boolean> m = new ConcurrentHashMap<>();
88	–	for (int i = 0; i < 1000; i++) {
89	–	assertTrue(m.put(new CI(i), true) == null);
90	–	}
91	–	for (int i = 0; i < 1000; i++) {
92	–	assertTrue(m.containsKey(new CI(i)));
93	–	assertTrue(m.containsKey(new DI(i)));
94	–	}
95	–	}
96	–
97	–	/**
98	–	* Elements of classes with erased generic type parameters based
99	–	* on Comparable can be inserted and found.
100	–	*/
101	–	public void testGenericComparable() {
102	–	ConcurrentHashMap<Object, Boolean> m = new ConcurrentHashMap<>();
103	–	for (int i = 0; i < 1000; i++) {
104	–	BI bi = new BI(i);
105	–	BS bs = new BS(String.valueOf(i));
106	–	LexicographicList<BI> bis = new LexicographicList<BI>(bi);
107	–	LexicographicList<BS> bss = new LexicographicList<BS>(bs);
108	–	assertTrue(m.putIfAbsent(bis, true) == null);
109	–	assertTrue(m.containsKey(bis));
110	–	if (m.putIfAbsent(bss, true) == null)
111	–	assertTrue(m.containsKey(bss));
112	–	assertTrue(m.containsKey(bis));
113	–	}
114	–	for (int i = 0; i < 1000; i++) {
115	–	assertTrue(m.containsKey(new ArrayList(Collections.singleton(new BI(i)))));
116	–	}
117	–	}
118	–
119	–	/**
120	–	* Elements of non-comparable classes equal to those of classes
121	–	* with erased generic type parameters based on Comparable can be
122	–	* inserted and found.
123	–	*/
124	–	public void testGenericComparable2() {
125	–	ConcurrentHashMap<Object, Boolean> m = new ConcurrentHashMap<>();
126	–	for (int i = 0; i < 1000; i++) {
127	–	m.put(new ArrayList(Collections.singleton(new BI(i))), true);
128	–	}
129	–
130	–	for (int i = 0; i < 1000; i++) {
131	–	LexicographicList<BI> bis = new LexicographicList<BI>(new BI(i));
132	–	assertTrue(m.containsKey(bis));
133	–	}
134	–	}
135	–
37		/**
38		* getOrDefault returns value if present, else default
39		*/

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