Method populatedSet

src/test/java/org/mapdb/BTreeSet3Test.java:26–41

(int n)

     * Integers 0 ... n.
     */
    private NavigableSet<Integer> populatedSet(int n) {
        NavigableSet<Integer> q =
                DBMaker.memoryDB().make().treeSet("test").serializer(Serializer.INTEGER).make();
        assertTrue(q.isEmpty());

        for (int i = n-1; i >= 0; i-=2)
            assertTrue(q.add(new Integer(i)));
        for (int i = (n & 1); i < n; i+=2)
            assertTrue(q.add(new Integer(i)));
        assertTrue(q.add(new Integer(-n)));
        assertTrue(q.add(new Integer(n)));
        NavigableSet s = q.subSet(new Integer(0), true, new Integer(n), false);
        assertFalse(s.isEmpty());
        assertEquals(n, s.size());
        return s;
    }

    /*
     * Returns a new set of first 5 ints.