Method testClear

src/test/java/org/mapdb/BTreeSet3Test.java:269–278

()

     * clear removes all elements
     */
    public void testClear() {
        NavigableSet q = populatedSet(SIZE);
        q.clear();
        assertTrue(q.isEmpty());
        assertEquals(0, q.size());
        q.add(new Integer(1));
        assertFalse(q.isEmpty());
        q.clear();
        assertTrue(q.isEmpty());
    }

    /*
     * containsAll(c) is true when c contains a subset of elements