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

Comparing jsr166/src/test/tck/MapTest.java (file contents):
Revision 1.2 by jsr166, Mon Jan 8 03:56:32 2018 UTC vs.
Revision 1.4 by jsr166, Tue Dec 18 03:54:01 2018 UTC

#	Line 139 | Line 139 | public class MapTest extends JSR166TestC
139		assertEquals(1, m.size());
140		}
141
142	+	/**
143	+	* "Missing" test found while investigating JDK-8210280.
144	+	* ant -Djsr166.tckTestClass=HashMapTest -Djsr166.methodFilter=testBug8210280 -Djsr166.runsPerTest=1000000 tck
145	+	*/
146	+	public void testBug8210280() {
147	+	final ThreadLocalRandom rnd = ThreadLocalRandom.current();
148	+	final int size1 = rnd.nextInt(32);
149	+	final int size2 = rnd.nextInt(128);
150	+
151	+	final Map m1 = impl.emptyMap();
152	+	for (int i = 0; i < size1; i++) {
153	+	int elt = rnd.nextInt(1024 * i, 1024 * (i + 1));
154	+	assertNull(m1.put(impl.makeKey(elt), impl.makeValue(elt)));
155	+	}
156	+
157	+	final Map m2 = impl.emptyMap();
158	+	for (int i = 0; i < size2; i++) {
159	+	int elt = rnd.nextInt(Integer.MIN_VALUE + 1024 * i,
160	+	Integer.MIN_VALUE + 1024 * (i + 1));
161	+	assertNull(m2.put(impl.makeKey(elt), impl.makeValue(-elt)));
162	+	}
163	+
164	+	final Map m1Copy = impl.emptyMap();
165	+	m1Copy.putAll(m1);
166	+
167	+	m1.putAll(m2);
168	+
169	+	for (Object elt : m2.keySet())
170	+	assertEquals(m2.get(elt), m1.get(elt));
171	+	for (Object elt : m1Copy.keySet())
172	+	assertSame(m1Copy.get(elt), m1.get(elt));
173	+	assertEquals(size1 + size2, m1.size());
174	+	}
175	+
176		//     public void testFailsIntentionallyForDebugging() {
177		//         fail(impl.klazz().getSimpleName());
178		//     }

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