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Comparing jsr166/src/test/tck/AtomicLongFieldUpdaterTest.java (file contents):
Revision 1.13 by jsr166, Tue Nov 17 03:12:51 2009 UTC vs.
Revision 1.20 by jsr166, Fri May 27 19:39:07 2011 UTC

#	Line 1 | Line 1
1		/*
2		* Written by Doug Lea with assistance from members of JCP JSR-166
3		* Expert Group and released to the public domain, as explained at
4	<	* http://creativecommons.org/licenses/publicdomain
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5		* Other contributors include Andrew Wright, Jeffrey Hayes,
6		* Pat Fisher, Mike Judd.
7		*/
#	Line 31 | Line 31 | public class AtomicLongFieldUpdaterTest
31		a = AtomicLongFieldUpdater.newUpdater
32		(AtomicLongFieldUpdaterTest.class, "y");
33		shouldThrow();
34	<	}
35	<	catch (RuntimeException rt) {}
34	>	} catch (RuntimeException success) {}
35		}
36
37		/**
#	Line 44 | Line 43 | public class AtomicLongFieldUpdaterTest
43		a = AtomicLongFieldUpdater.newUpdater
44		(AtomicLongFieldUpdaterTest.class, "z");
45		shouldThrow();
46	<	}
48	<	catch (RuntimeException rt) {}
46	>	} catch (RuntimeException success) {}
47		}
48
49		/**
#	Line 57 | Line 55 | public class AtomicLongFieldUpdaterTest
55		a = AtomicLongFieldUpdater.newUpdater
56		(AtomicLongFieldUpdaterTest.class, "w");
57		shouldThrow();
58	<	}
61	<
62	<	catch (RuntimeException rt) {}
58	>	} catch (RuntimeException success) {}
59		}
60
61		/**
62	<	*  get returns the last value set or assigned
62	>	* get returns the last value set or assigned
63		*/
64		public void testGetSet() {
65		AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a;
#	Line 73 | Line 69 | public class AtomicLongFieldUpdaterTest
69		return;
70		}
71		x = 1;
72	<	assertEquals(1,a.get(this));
73	<	a.set(this,2);
74	<	assertEquals(2,a.get(this));
75	<	a.set(this,-3);
76	<	assertEquals(-3,a.get(this));
72	>	assertEquals(1,a.get(this));
73	>	a.set(this,2);
74	>	assertEquals(2,a.get(this));
75	>	a.set(this,-3);
76	>	assertEquals(-3,a.get(this));
77		}
78
79		/**
80	<	*  get returns the last value lazySet by same thread
80	>	* get returns the last value lazySet by same thread
81		*/
82		public void testGetLazySet() {
83		AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a;
#	Line 91 | Line 87 | public class AtomicLongFieldUpdaterTest
87		return;
88		}
89		x = 1;
90	<	assertEquals(1,a.get(this));
91	<	a.lazySet(this,2);
92	<	assertEquals(2,a.get(this));
93	<	a.lazySet(this,-3);
94	<	assertEquals(-3,a.get(this));
90	>	assertEquals(1,a.get(this));
91	>	a.lazySet(this,2);
92	>	assertEquals(2,a.get(this));
93	>	a.lazySet(this,-3);
94	>	assertEquals(-3,a.get(this));
95		}
96
101	–
97		/**
98		* compareAndSet succeeds in changing value if equal to expected else fails
99		*/
#	Line 110 | Line 105 | public class AtomicLongFieldUpdaterTest
105		return;
106		}
107		x = 1;
108	<	assertTrue(a.compareAndSet(this,1,2));
109	<	assertTrue(a.compareAndSet(this,2,-4));
110	<	assertEquals(-4,a.get(this));
111	<	assertFalse(a.compareAndSet(this,-5,7));
112	<	assertFalse((7 == a.get(this)));
113	<	assertTrue(a.compareAndSet(this,-4,7));
114	<	assertEquals(7,a.get(this));
108	>	assertTrue(a.compareAndSet(this,1,2));
109	>	assertTrue(a.compareAndSet(this,2,-4));
110	>	assertEquals(-4,a.get(this));
111	>	assertFalse(a.compareAndSet(this,-5,7));
112	>	assertEquals(-4,a.get(this));
113	>	assertTrue(a.compareAndSet(this,-4,7));
114	>	assertEquals(7,a.get(this));
115		}
116
122	–
117		/**
118		* compareAndSet in one thread enables another waiting for value
119		* to succeed
#	Line 133 | Line 127 | public class AtomicLongFieldUpdaterTest
127		return;
128		}
129
130	<	Thread t = new Thread(new Runnable() {
131	<	public void run() {
132	<	while (!a.compareAndSet(AtomicLongFieldUpdaterTest.this, 2, 3)) Thread.yield();
133	<	}});
130	>	Thread t = new Thread(new CheckedRunnable() {
131	>	public void realRun() {
132	>	while (!a.compareAndSet(AtomicLongFieldUpdaterTest.this, 2, 3))
133	>	Thread.yield();
134	>	}});
135
136		t.start();
137		assertTrue(a.compareAndSet(this, 1, 2));
#	Line 157 | Line 152 | public class AtomicLongFieldUpdaterTest
152		return;
153		}
154		x = 1;
155	<	while (!a.weakCompareAndSet(this,1,2));
155	>	while (!a.weakCompareAndSet(this,1,2));
156		while (!a.weakCompareAndSet(this,2,-4));
157	<	assertEquals(-4,a.get(this));
158	<	while (!a.weakCompareAndSet(this,-4,7));
159	<	assertEquals(7,a.get(this));
157	>	assertEquals(-4,a.get(this));
158	>	while (!a.weakCompareAndSet(this,-4,7));
159	>	assertEquals(7,a.get(this));
160		}
161
162		/**
163	<	*  getAndSet returns previous value and sets to given value
163	>	* getAndSet returns previous value and sets to given value
164		*/
165		public void testGetAndSet() {
166		AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a;
#	Line 175 | Line 170 | public class AtomicLongFieldUpdaterTest
170		return;
171		}
172		x = 1;
173	<	assertEquals(1,a.getAndSet(this, 0));
174	<	assertEquals(0,a.getAndSet(this,-10));
175	<	assertEquals(-10,a.getAndSet(this,1));
173	>	assertEquals(1,a.getAndSet(this, 0));
174	>	assertEquals(0,a.getAndSet(this,-10));
175	>	assertEquals(-10,a.getAndSet(this,1));
176		}
177
178		/**
#	Line 191 | Line 186 | public class AtomicLongFieldUpdaterTest
186		return;
187		}
188		x = 1;
189	<	assertEquals(1,a.getAndAdd(this,2));
190	<	assertEquals(3,a.get(this));
191	<	assertEquals(3,a.getAndAdd(this,-4));
192	<	assertEquals(-1,a.get(this));
189	>	assertEquals(1,a.getAndAdd(this,2));
190	>	assertEquals(3,a.get(this));
191	>	assertEquals(3,a.getAndAdd(this,-4));
192	>	assertEquals(-1,a.get(this));
193		}
194
195		/**
#	Line 208 | Line 203 | public class AtomicLongFieldUpdaterTest
203		return;
204		}
205		x = 1;
206	<	assertEquals(1,a.getAndDecrement(this));
207	<	assertEquals(0,a.getAndDecrement(this));
208	<	assertEquals(-1,a.getAndDecrement(this));
206	>	assertEquals(1,a.getAndDecrement(this));
207	>	assertEquals(0,a.getAndDecrement(this));
208	>	assertEquals(-1,a.getAndDecrement(this));
209		}
210
211		/**
#	Line 224 | Line 219 | public class AtomicLongFieldUpdaterTest
219		return;
220		}
221		x = 1;
222	<	assertEquals(1,a.getAndIncrement(this));
223	<	assertEquals(2,a.get(this));
224	<	a.set(this,-2);
225	<	assertEquals(-2,a.getAndIncrement(this));
226	<	assertEquals(-1,a.getAndIncrement(this));
227	<	assertEquals(0,a.getAndIncrement(this));
228	<	assertEquals(1,a.get(this));
222	>	assertEquals(1,a.getAndIncrement(this));
223	>	assertEquals(2,a.get(this));
224	>	a.set(this,-2);
225	>	assertEquals(-2,a.getAndIncrement(this));
226	>	assertEquals(-1,a.getAndIncrement(this));
227	>	assertEquals(0,a.getAndIncrement(this));
228	>	assertEquals(1,a.get(this));
229		}
230
231		/**
#	Line 244 | Line 239 | public class AtomicLongFieldUpdaterTest
239		return;
240		}
241		x = 1;
242	<	assertEquals(3,a.addAndGet(this,2));
243	<	assertEquals(3,a.get(this));
244	<	assertEquals(-1,a.addAndGet(this,-4));
245	<	assertEquals(-1,a.get(this));
242	>	assertEquals(3,a.addAndGet(this,2));
243	>	assertEquals(3,a.get(this));
244	>	assertEquals(-1,a.addAndGet(this,-4));
245	>	assertEquals(-1,a.get(this));
246		}
247
248		/**
249	<	*  decrementAndGet decrements and returns current value
249	>	* decrementAndGet decrements and returns current value
250		*/
251		public void testDecrementAndGet() {
252		AtomicLongFieldUpdater<AtomicLongFieldUpdaterTest> a;
#	Line 261 | Line 256 | public class AtomicLongFieldUpdaterTest
256		return;
257		}
258		x = 1;
259	<	assertEquals(0,a.decrementAndGet(this));
260	<	assertEquals(-1,a.decrementAndGet(this));
261	<	assertEquals(-2,a.decrementAndGet(this));
262	<	assertEquals(-2,a.get(this));
259	>	assertEquals(0,a.decrementAndGet(this));
260	>	assertEquals(-1,a.decrementAndGet(this));
261	>	assertEquals(-2,a.decrementAndGet(this));
262	>	assertEquals(-2,a.get(this));
263		}
264
265		/**
#	Line 278 | Line 273 | public class AtomicLongFieldUpdaterTest
273		return;
274		}
275		x = 1;
276	<	assertEquals(2,a.incrementAndGet(this));
277	<	assertEquals(2,a.get(this));
278	<	a.set(this,-2);
279	<	assertEquals(-1,a.incrementAndGet(this));
280	<	assertEquals(0,a.incrementAndGet(this));
281	<	assertEquals(1,a.incrementAndGet(this));
282	<	assertEquals(1,a.get(this));
276	>	assertEquals(2,a.incrementAndGet(this));
277	>	assertEquals(2,a.get(this));
278	>	a.set(this,-2);
279	>	assertEquals(-1,a.incrementAndGet(this));
280	>	assertEquals(0,a.incrementAndGet(this));
281	>	assertEquals(1,a.incrementAndGet(this));
282	>	assertEquals(1,a.get(this));
283		}
284
285		}

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