i = map.keySet().iterator();
    i.next();
    i.remove();
    assertNotified(listener, four, five, RemovalCause.EXPLICIT);

    map.put(five, six);
    i = map.values().iterator();
    i.next();
    i.remove();
    assertNotified(listener, five, six, RemovalCause.EXPLICIT);

    assertTrue(listener.isEmpty());
  }

  public void testRemovalListener_replaced() {

    }

    @Test
    public void testParseQueryWithTooManyTerms() {
        // Test query with more than MAX_QUERY_TERM_NUM (5) terms
        String query = "one two three four five six seven";
        String field = "content";
        String[] keywords = SuggestUtil.parseQuery(query, field);
        assertNotNull(keywords);
        assertEquals(0, keywords.length); // Should return empty array
    }

   *
   * {@snippet :
   * Lists.cartesianProduct(ImmutableList.of(
   *     ImmutableList.of(1, 2),
   *     ImmutableList.of("A", "B", "C")))
   * }
   *
   * <p>returns a list containing six lists in the following order:
   *
   * <ul>
   *   <li>{@code ImmutableList.of(1, "A")}
   *   <li>{@code ImmutableList.of(1, "B")}
   *   <li>{@code ImmutableList.of(1, "C")}

    --hash=sha256:fef8c87f8abfb884dac04e97824b61299880c43f4ce675dd2cbeadd3c9b466d2
    # via
    #   -r ci/official/requirements_updater/requirements.in
    #   jax
six==1.17.0 \
    --hash=sha256:4721f391ed90541fddacab5acf947aa0d3dc7d27b2e1e8eda2be8970586c3274 \
    --hash=sha256:ff70335d468e7eb6ec65b95b99d3a2836546063f63acc5171de367e834932a81
    # via
    #   astunparse

    --hash=sha256:fef8c87f8abfb884dac04e97824b61299880c43f4ce675dd2cbeadd3c9b466d2
    # via
    #   -r ci/official/requirements_updater/requirements.in
    #   jax
six==1.17.0 \
    --hash=sha256:4721f391ed90541fddacab5acf947aa0d3dc7d27b2e1e8eda2be8970586c3274 \
    --hash=sha256:ff70335d468e7eb6ec65b95b99d3a2836546063f63acc5171de367e834932a81
    # via
    #   astunparse

    --hash=sha256:fef8c87f8abfb884dac04e97824b61299880c43f4ce675dd2cbeadd3c9b466d2
    # via
    #   -r ci/official/requirements_updater/requirements.in
    #   jax
six==1.17.0 \
    --hash=sha256:4721f391ed90541fddacab5acf947aa0d3dc7d27b2e1e8eda2be8970586c3274 \
    --hash=sha256:ff70335d468e7eb6ec65b95b99d3a2836546063f63acc5171de367e834932a81
    # via
    #   astunparse

0183          ; valid                                  # 1.1  LATIN SMALL LETTER B WITH TOPBAR
0184          ; mapped                 ; 0185          # 1.1  LATIN CAPITAL LETTER TONE SIX
0185          ; valid                                  # 1.1  LATIN SMALL LETTER TONE SIX
0186          ; mapped                 ; 0254          # 1.1  LATIN CAPITAL LETTER OPEN O
0187          ; mapped                 ; 0188          # 1.1  LATIN CAPITAL LETTER C WITH HOOK

    --hash=sha256:fef8c87f8abfb884dac04e97824b61299880c43f4ce675dd2cbeadd3c9b466d2
    # via
    #   -r ci/official/requirements_updater/requirements.in
    #   jax
six==1.17.0 \
    --hash=sha256:4721f391ed90541fddacab5acf947aa0d3dc7d27b2e1e8eda2be8970586c3274 \
    --hash=sha256:ff70335d468e7eb6ec65b95b99d3a2836546063f63acc5171de367e834932a81
    # via
    #   astunparse

    --hash=sha256:f26264b282b9da0952a024ae34710c2aff7d27480ee91a2e82b7b7073c24722f
    # via
    #   -r ci/official/requirements_updater/requirements.in
    #   jax
six==1.17.0 \
    --hash=sha256:4721f391ed90541fddacab5acf947aa0d3dc7d27b2e1e8eda2be8970586c3274 \
    --hash=sha256:ff70335d468e7eb6ec65b95b99d3a2836546063f63acc5171de367e834932a81
    # via
    #   astunparse

    --hash=sha256:fef8c87f8abfb884dac04e97824b61299880c43f4ce675dd2cbeadd3c9b466d2
    # via
    #   -r ci/official/requirements_updater/requirements.in
    #   jax
six==1.17.0 \
    --hash=sha256:4721f391ed90541fddacab5acf947aa0d3dc7d27b2e1e8eda2be8970586c3274 \
    --hash=sha256:ff70335d468e7eb6ec65b95b99d3a2836546063f63acc5171de367e834932a81
    # via
    #   astunparse