public void tearDown() throws Exception {
        super.tearDown();
    }

    // Basic test to verify test framework is working
    public void test_basicAssertion() {
        assertTrue(true);
        assertFalse(false);
        assertNotNull("test");
        assertEquals(1, 1);
    }

    // Test placeholder for future implementation
    public void test_placeholder() {

    public void tearDown() throws Exception {
        super.tearDown();
    }

    // Basic test to verify test framework is working
    public void test_basicAssertion() {
        assertTrue(true);
        assertFalse(false);
        assertNotNull("test");
        assertEquals(1, 1);
    }

    // Test placeholder for future implementation
    public void test_placeholder() {

    public void tearDown() throws Exception {
        super.tearDown();
    }

    // Basic test to verify test framework is working
    public void test_basicAssertion() {
        assertTrue(true);
        assertFalse(false);
        assertNotNull("test");
        assertEquals(1, 1);
    }

    // Test placeholder for future implementation
    public void test_placeholder() {

    public void tearDown() throws Exception {
        super.tearDown();
    }

    // Basic test to verify test framework is working
    public void test_basicAssertion() {
        assertTrue(true);
        assertFalse(false);
        assertNotNull("test");
        assertEquals(1, 1);
    }

    // Test placeholder for future implementation
    public void test_placeholder() {

    public void tearDown() throws Exception {
        super.tearDown();
    }

    // Basic test to verify test framework is working
    public void test_basicAssertion() {
        assertTrue(true);
        assertFalse(false);
        assertNotNull("test");
        assertEquals(1, 1);
    }

    // Test placeholder for future implementation
    public void test_placeholder() {

    public void tearDown() throws Exception {
        super.tearDown();
    }

    // Basic test to verify test framework is working
    public void test_basicAssertion() {
        assertTrue(true);
        assertFalse(false);
        assertNotNull("test");
        assertEquals(1, 1);
    }

    // Test placeholder for future implementation
    public void test_placeholder() {

    }
  }

  void expectRemoveZero(SortedMultiset<E> multiset, Entry<E> entry) {
    assertEquals(0, multiset.remove(entry.getElement(), entry.getCount()));
    assertFalse(multiset.remove(entry.getElement()));
    assertFalse(multiset.elementSet().remove(entry.getElement()));
  }

  void expectSetCountFailure(SortedMultiset<E> multiset, Entry<E> entry) {
    try {

  public void testIsEmpty_yes() {
    assertTrue("isEmpty() should return true", getMap().isEmpty());
  }

  @CollectionSize.Require(absent = ZERO)
  public void testIsEmpty_no() {
    assertFalse("isEmpty() should return false", getMap().isEmpty());
  }

    // Test get method with empty file
    public void test_get_emptyFile() throws Exception {
        writeTestFile("");

        OptionalEntity<CharMappingItem> result = charMappingFile.get(1L);
        assertFalse(result.isPresent());
    }

    // Test get method with valid data
    public void test_get_validData() throws Exception {
        writeTestFile("a,b => c\nd,e => f\n");

  @CollectionSize.Require(absent = {ZERO, ONE})
  public void testRetainAll_duplicatesKept() {
    E[] array = createSamplesArray();
    array[1] = e0();
    collection = getSubjectGenerator().create(array);
    assertFalse(
        "containsDuplicates.retainAll(superset) should return false",
        collection.retainAll(MinimalCollection.of(createSamplesArray())));
    expectContents(array);
  }