@Test
  public void testGetFileAttributeView_isNullForUnsupportedView() {
    final File file = createFile();
    FileLookup fileLookup =
        new FileLookup() {
          @Override
          public File lookup() throws IOException {
            return file;
          }
        };
    assertThat(service.getFileAttributeView(fileLookup, PosixFileAttributeView.class)).isNull();
  }
Tests for {@link AttributeService}.

@author Colin Decker
jimfs/src/test/java/com/google/common/jimfs/AttributeServiceTest.java