assertEquals("blah", testTable.get('a', 1));
    assertNull(testTable.get('a', 2));
    assertNull(testTable.get('A', 1));
    assertNull(testTable.get('A', 2));
  }

  public void testIsEmpty() {
    assertFalse(testTable.isEmpty());
  }

  public void testSize() {
    assertEquals(1, testTable.size());
  }

  public void testValues() {

    assertThat(ImmutableLongArray.of(0, 1, 3).subArray(1, 1).length()).isEqualTo(0);
    assertThat(ImmutableLongArray.of(0, 1, 3).subArray(1, 2).length()).isEqualTo(1);
  }

  public void testIsEmpty() {
    assertThat(ImmutableLongArray.of().isEmpty()).isTrue();
    assertThat(ImmutableLongArray.of(0).isEmpty()).isFalse();
    assertThat(ImmutableLongArray.of(0, 1, 3).isEmpty()).isFalse();

    assertNull(table.get("bar", 3));
    assertNull(table.get("cat", 1));
    assertNull(table.get("foo", null));
    assertNull(table.get(null, 1));
    assertNull(table.get(null, null));
  }

  public void testIsEmpty() {
    assertTrue(table.isEmpty());
    table = create("foo", 1, 'a', "bar", 1, 'b', "foo", 3, 'c');
    assertFalse(table.isEmpty());
  }

  public void testSize() {
    assertSize(0);

    assertThat(ImmutableDoubleArray.of(0, 1, 3).subArray(1, 1).length()).isEqualTo(0);
    assertThat(ImmutableDoubleArray.of(0, 1, 3).subArray(1, 2).length()).isEqualTo(1);
  }

  public void testIsEmpty() {
    assertThat(ImmutableDoubleArray.of().isEmpty()).isTrue();
    assertThat(ImmutableDoubleArray.of(0).isEmpty()).isFalse();
    assertThat(ImmutableDoubleArray.of(0, 1, 3).isEmpty()).isFalse();

    assertThat(ImmutableIntArray.of(0, 1, 3).subArray(1, 1).length()).isEqualTo(0);
    assertThat(ImmutableIntArray.of(0, 1, 3).subArray(1, 2).length()).isEqualTo(1);
  }

  public void testIsEmpty() {
    assertThat(ImmutableIntArray.of().isEmpty()).isTrue();
    assertThat(ImmutableIntArray.of(0).isEmpty()).isFalse();
    assertThat(ImmutableIntArray.of(0, 1, 3).isEmpty()).isFalse();

    assertThat(ImmutableDoubleArray.of(0, 1, 3).subArray(1, 1).length()).isEqualTo(0);
    assertThat(ImmutableDoubleArray.of(0, 1, 3).subArray(1, 2).length()).isEqualTo(1);
  }

  public void testIsEmpty() {
    assertThat(ImmutableDoubleArray.of().isEmpty()).isTrue();
    assertThat(ImmutableDoubleArray.of(0).isEmpty()).isFalse();
    assertThat(ImmutableDoubleArray.of(0, 1, 3).isEmpty()).isFalse();

  }

  public void testLimit_illegalArgument() {
    List<String> list = newArrayList("a", "b", "c");
    assertThrows(IllegalArgumentException.class, () -> Iterables.limit(list, -1));
  }

  public void testIsEmpty() {
    Iterable<String> emptyList = emptyList();
    assertTrue(Iterables.isEmpty(emptyList));

    Iterable<String> singletonList = singletonList("foo");
    assertFalse(Iterables.isEmpty(singletonList));
  }

  }

  public void testLimit_illegalArgument() {
    List<String> list = newArrayList("a", "b", "c");
    assertThrows(IllegalArgumentException.class, () -> Iterables.limit(list, -1));
  }

  public void testIsEmpty() {
    Iterable<String> emptyList = emptyList();
    assertTrue(Iterables.isEmpty(emptyList));

    Iterable<String> singletonList = singletonList("foo");
    assertFalse(Iterables.isEmpty(singletonList));
  }