Import Android SDK Platform PI [4335822]
/google/data/ro/projects/android/fetch_artifact \
--bid 4335822 \
--target sdk_phone_armv7-win_sdk \
sdk-repo-linux-sources-4335822.zip
AndroidVersion.ApiLevel has been modified to appear as 28
Change-Id: Ic8f04be005a71c2b9abeaac754d8da8d6f9a2c32
diff --git a/jsr166/AtomicReferenceTest.java b/jsr166/AtomicReferenceTest.java
new file mode 100644
index 0000000..4728970
--- /dev/null
+++ b/jsr166/AtomicReferenceTest.java
@@ -0,0 +1,148 @@
+/*
+ * Written by Doug Lea with assistance from members of JCP JSR-166
+ * Expert Group and released to the public domain, as explained at
+ * http://creativecommons.org/publicdomain/zero/1.0/
+ * Other contributors include Andrew Wright, Jeffrey Hayes,
+ * Pat Fisher, Mike Judd.
+ */
+
+package jsr166;
+
+import java.util.concurrent.atomic.AtomicReference;
+
+import junit.framework.Test;
+import junit.framework.TestSuite;
+
+public class AtomicReferenceTest extends JSR166TestCase {
+ // android-note: Removed because the CTS runner does a bad job of
+ // retrying tests that have suite() declarations.
+ //
+ // public static void main(String[] args) {
+ // main(suite(), args);
+ // }
+ // public static Test suite() {
+ // return new TestSuite(AtomicReferenceTest.class);
+ // }
+
+ /**
+ * constructor initializes to given value
+ */
+ public void testConstructor() {
+ AtomicReference ai = new AtomicReference(one);
+ assertSame(one, ai.get());
+ }
+
+ /**
+ * default constructed initializes to null
+ */
+ public void testConstructor2() {
+ AtomicReference ai = new AtomicReference();
+ assertNull(ai.get());
+ }
+
+ /**
+ * get returns the last value set
+ */
+ public void testGetSet() {
+ AtomicReference ai = new AtomicReference(one);
+ assertSame(one, ai.get());
+ ai.set(two);
+ assertSame(two, ai.get());
+ ai.set(m3);
+ assertSame(m3, ai.get());
+ }
+
+ /**
+ * get returns the last value lazySet in same thread
+ */
+ public void testGetLazySet() {
+ AtomicReference ai = new AtomicReference(one);
+ assertSame(one, ai.get());
+ ai.lazySet(two);
+ assertSame(two, ai.get());
+ ai.lazySet(m3);
+ assertSame(m3, ai.get());
+ }
+
+ /**
+ * compareAndSet succeeds in changing value if equal to expected else fails
+ */
+ public void testCompareAndSet() {
+ AtomicReference ai = new AtomicReference(one);
+ assertTrue(ai.compareAndSet(one, two));
+ assertTrue(ai.compareAndSet(two, m4));
+ assertSame(m4, ai.get());
+ assertFalse(ai.compareAndSet(m5, seven));
+ assertSame(m4, ai.get());
+ assertTrue(ai.compareAndSet(m4, seven));
+ assertSame(seven, ai.get());
+ }
+
+ /**
+ * compareAndSet in one thread enables another waiting for value
+ * to succeed
+ */
+ public void testCompareAndSetInMultipleThreads() throws Exception {
+ final AtomicReference ai = new AtomicReference(one);
+ Thread t = new Thread(new CheckedRunnable() {
+ public void realRun() {
+ while (!ai.compareAndSet(two, three))
+ Thread.yield();
+ }});
+
+ t.start();
+ assertTrue(ai.compareAndSet(one, two));
+ t.join(LONG_DELAY_MS);
+ assertFalse(t.isAlive());
+ assertSame(three, ai.get());
+ }
+
+ /**
+ * repeated weakCompareAndSet succeeds in changing value when equal
+ * to expected
+ */
+ public void testWeakCompareAndSet() {
+ AtomicReference ai = new AtomicReference(one);
+ do {} while (!ai.weakCompareAndSet(one, two));
+ do {} while (!ai.weakCompareAndSet(two, m4));
+ assertSame(m4, ai.get());
+ do {} while (!ai.weakCompareAndSet(m4, seven));
+ assertSame(seven, ai.get());
+ }
+
+ /**
+ * getAndSet returns previous value and sets to given value
+ */
+ public void testGetAndSet() {
+ AtomicReference ai = new AtomicReference(one);
+ assertSame(one, ai.getAndSet(zero));
+ assertSame(zero, ai.getAndSet(m10));
+ assertSame(m10, ai.getAndSet(one));
+ }
+
+ /**
+ * a deserialized serialized atomic holds same value
+ */
+ public void testSerialization() throws Exception {
+ AtomicReference x = new AtomicReference();
+ AtomicReference y = serialClone(x);
+ assertNotSame(x, y);
+ x.set(one);
+ AtomicReference z = serialClone(x);
+ assertNotSame(y, z);
+ assertEquals(one, x.get());
+ assertEquals(null, y.get());
+ assertEquals(one, z.get());
+ }
+
+ /**
+ * toString returns current value.
+ */
+ public void testToString() {
+ AtomicReference<Integer> ai = new AtomicReference<Integer>(one);
+ assertEquals(one.toString(), ai.toString());
+ ai.set(two);
+ assertEquals(two.toString(), ai.toString());
+ }
+
+}
