public void testCAS() throws Exception {
final String key = "castestkey";
// First, make sure it doesn't work for a non-existing value.
assertSame(
"Expected error CASing with no existing value.",
CASResponse.NOT_FOUND,
client.cas(key, 0x7fffffffffL, "bad value"));
// OK, stick a value in here.
assertTrue(client.add(key, 5, "original value").get());
CASValue<?> getsVal = client.gets(key);
assertEquals("original value", getsVal.getValue());
// Now try it with an existing value, but wrong CAS id
assertSame(
"Expected error CASing with invalid id",
CASResponse.EXISTS,
client.cas(key, getsVal.getCas() + 1, "broken value"));
// Validate the original value is still in tact.
assertEquals("original value", getsVal.getValue());
// OK, now do a valid update
assertSame(
"Expected successful CAS with correct id (" + getsVal.getCas() + ")",
CASResponse.OK,
client.cas(key, getsVal.getCas(), "new value"));
assertEquals("new value", client.get(key));
// Test a CAS replay
assertSame(
"Expected unsuccessful CAS with replayed id",
CASResponse.EXISTS,
client.cas(key, getsVal.getCas(), "crap value"));
assertEquals("new value", client.get(key));
}
@Test
public void testCASValueToString() {
CASValue<String> c = new CASValue<String>(717L, "hi");
assertEquals("{CasValue 717/hi}", c.toString());
}
