@TestTargets({
@TestTargetNew(
level = TestLevel.COMPLETE,
method = "deactivate",
args = {}),
@TestTargetNew(
level = TestLevel.COMPLETE,
method = "setWindow",
args = {android.database.CursorWindow.class}),
@TestTargetNew(
level = TestLevel.COMPLETE,
method = "registerDataSetObserver",
args = {android.database.DataSetObserver.class})
})
public void testRegisterDataSetObserver() {
SQLiteCursor cursor = getCursor();
MockCursorWindow cursorWindow = new MockCursorWindow(false);
MockObserver observer = new MockObserver();
cursor.setWindow(cursorWindow);
// Before registering, observer can't be notified.
assertFalse(observer.hasInvalidated());
cursor.moveToLast();
assertFalse(cursorWindow.isClosed());
cursor.deactivate();
assertFalse(observer.hasInvalidated());
// deactivate() will close the CursorWindow
assertTrue(cursorWindow.isClosed());
// test registering DataSetObserver
assertTrue(cursor.requery());
cursor.registerDataSetObserver(observer);
assertFalse(observer.hasInvalidated());
cursor.moveToLast();
assertEquals(TEST_COUNT, cursor.getInt(1));
cursor.deactivate();
// deactivate method can invoke invalidate() method, can be observed by DataSetObserver.
assertTrue(observer.hasInvalidated());
try {
cursor.getInt(1);
fail("After deactivating, cursor cannot execute getting value operations.");
} catch (StaleDataException e) {
}
assertTrue(cursor.requery());
cursor.moveToLast();
assertEquals(TEST_COUNT, cursor.getInt(1));
// can't register a same observer twice.
try {
cursor.registerDataSetObserver(observer);
fail("didn't throw IllegalStateException when register existed observer");
} catch (IllegalStateException e) {
}
// after unregistering, observer can't be notified.
cursor.unregisterDataSetObserver(observer);
observer.resetStatus();
assertFalse(observer.hasInvalidated());
cursor.deactivate();
assertFalse(observer.hasInvalidated());
}
