assertFalse(aa.compareAndSet(i, -0.0, 7.0));
      assertFalse(aa.weakCompareAndSet(i, -0.0, 7.0));
      assertBitEquals(+0.0, aa.get(i));
      assertTrue(aa.compareAndSet(i, +0.0, -0.0));
      assertBitEquals(-0.0, aa.get(i));
      assertFalse(aa.compareAndSet(i, +0.0, 7.0));
      assertFalse(aa.weakCompareAndSet(i, +0.0, 7.0));
      assertBitEquals(-0.0, aa.get(i));
    }
  }

        assertEquals("\"aaa bbb\" \"ccc\"", getAsQuery(Collections.singletonMap(k, new String[] { "aaa bbb", "ccc" })));
        assertEquals("\"a\\\"aa\"", getAsQuery(Collections.singletonMap(k, new String[] { "a\"aa" })));
        assertEquals("\"aaa bbb\"", getAsQuery("111", Collections.singletonMap(k, new String[] { "aaa bbb" })));
    }

    public void test_conditions_oq() {

    assertEquals("", Strings.commonPrefix("xyz", "abcde"));
    assertEquals("", Strings.commonPrefix("xyz", "abcxyz"));
    assertEquals("a", Strings.commonPrefix("abc", "aaaaa"));
    assertEquals("aa", Strings.commonPrefix("aa", "aaaaa"));
    assertEquals("abc", Strings.commonPrefix(new StringBuilder("abcdef"), "abcxyz"));

    // Identical valid surrogate pairs.
    assertEquals(

        SuggestResponse response2 = suggester.suggest().setQuery("-a").setSuggestDetail(true).execute().getResponse();
        assertEquals(2, response2.getNum());

        SuggestResponse response3 = suggester.suggest().setQuery("-aa-").setSuggestDetail(true).execute().getResponse();
        assertEquals(1, response3.getNum());
    }

    @Test
    public void test_getNum() throws Exception {
        SuggestItem[] items = getItemSet1();

        assertTrue(StringUtil.endsWithIgnoreCase("aaa_hoge", "HOge"));
        assertFalse(StringUtil.endsWithIgnoreCase("setHogeaa", "Aaa"));
        assertFalse(StringUtil.endsWithIgnoreCase("aa", "Aaa"));
    }

    /**
     * @throws Exception
     */
    @Test
    public void testStartsWithIgnoreCase() throws Exception {
        assertTrue(StringUtil.startsWithIgnoreCase("isHoge", "is"));

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   *   a<>
   *  / \\
   * b   c
   *  \ /
   *   d<>
   * }
   *
   * {@code <>} indicates a self-loop
   */
  private static final SuccessorsFunction<Character> MULTI_GRAPH =
      createDirectedGraph("aa", "dd", "ab", "ac", "ca", "cd", "bd");

  /** A directed graph with a single cycle: a -> b -> c -> d -> a. */
  private static final SuccessorsFunction<Character> CYCLE_GRAPH =
      createDirectedGraph("ab", "bc", "cd", "da");

   *   a<>
   *  / \\
   * b   c
   *  \ /
   *   d<>
   * }
   *
   * {@code <>} indicates a self-loop
   */
  private static final SuccessorsFunction<Character> MULTI_GRAPH =
      createDirectedGraph("aa", "dd", "ab", "ac", "ca", "cd", "bd");

  /** A directed graph with a single cycle: a -> b -> c -> d -> a. */
  private static final SuccessorsFunction<Character> CYCLE_GRAPH =
      createDirectedGraph("ab", "bc", "cd", "da");