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

Comparing jsr166/src/test/tck/SplittableRandomTest.java (file contents):
Revision 1.19 by jsr166, Sun Sep 20 21:16:08 2015 UTC vs.
Revision 1.20 by jsr166, Sun Nov 13 03:36:50 2016 UTC

#	Line 50 | Line 50 | public class SplittableRandomTest extend
50		Integer.getInteger("SplittableRandomTest.reps", 4);
51
52		/**
53	+	* Repeated calls to next (only accessible via reflection) produce
54	+	* at least two distinct results, and repeated calls produce all
55	+	* possible values.
56	+	*/
57	+	public void testNext() throws ReflectiveOperationException {
58	+	SplittableRandom rnd = new SplittableRandom();
59	+	try {
60	+	java.lang.reflect.Method m
61	+	= SplittableRandom.class.getDeclaredMethod(
62	+	"next", new Class[] { int.class });
63	+	m.setAccessible(true);
64	+
65	+	int i;
66	+	{
67	+	int val = new java.util.Random().nextInt(4);
68	+	for (i = 0; i < NCALLS; i++) {
69	+	int q = (int) m.invoke(rnd, new Object[] { 2 });
70	+	if (val == q) break;
71	+	}
72	+	assertTrue(i < NCALLS);
73	+	}
74	+
75	+	{
76	+	int r = (int) m.invoke(rnd, new Object[] { 3 });
77	+	for (i = 0; i < NCALLS; i++) {
78	+	int q = (int) m.invoke(rnd, new Object[] { 3 });
79	+	assertTrue(q < (1<<3));
80	+	if (r != q) break;
81	+	}
82	+	assertTrue(i < NCALLS);
83	+	}
84	+	} catch (SecurityException acceptable) {}
85	+	}
86	+
87	+	/**
88		* Repeated calls to nextInt produce at least two distinct results
89		*/
90		public void testNextInt() {

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