/** @throws Exception If failed. */ @Test public void testSetRemoveAll() throws Exception { Collection<String> set = new GridSetWrapper<>(new HashMap<String, Object>()); set.add("v1"); set.add("v2"); set.add("v3"); set.add("v4"); set.add("v5"); set.removeAll(IgniteUtils.addAll(new HashSet<String>(), "v2", "v4", "v5")); assertEquals(2, set.size()); assert set.contains("v1"); assert !set.contains("v2"); assert set.contains("v3"); assert !set.contains("v4"); assert !set.contains("v5"); }