@Test
public void testTraversal() throws PersistitException {
final Exchange ex = _persistit.getExchange("persistit", "gogo", true);
final String mockValue = createString(256);
/* insert 1000 records */
for (int i = 0; i < 1000; i++) {
final String key = createString(32);
ex.clear().append(key);
ex.getValue().put(mockValue);
ex.store();
}
/* traverse forwards through those values */
ex.clear().to(Key.BEFORE);
while (ex.next()) {
ex.fetch();
assertEquals(mockValue, ex.getValue().getString());
}
ex.clear().to(Key.BEFORE);
while (ex.hasNext()) {
ex.next();
ex.fetch();
assertEquals(mockValue, ex.getValue().getString());
}
/* now traverse backwards through those values */
ex.clear().to(Key.AFTER);
while (ex.previous()) {
ex.fetch();
assertEquals(mockValue, ex.getValue().getString());
}
ex.clear().to(Key.AFTER);
while (ex.hasPrevious()) {
ex.previous();
ex.fetch();
assertEquals(mockValue, ex.getValue().getString());
}
/* now use the traverse method with various directions */
ex.clear().to(Key.BEFORE);
final Key key = ex.getKey();
final KeyFilter kf = new KeyFilter(key);
/* this is mostly to test if we can trigger bad things */
assertEquals(false, ex.traverse(Key.EQ, kf, 4));
assertEquals(false, ex.traverse(Key.GT, kf, 4));
assertEquals(false, ex.traverse(Key.GTEQ, kf, 4));
assertEquals(false, ex.traverse(Key.LT, kf, 4));
assertEquals(false, ex.traverse(Key.LTEQ, kf, 4));
}
