@Test
public void notAnImageFile_noSuggestion() {

  FileData file = FakeFileData.builder("hello.ico").build();
  assertThat(
          new WebpSuggester()
              .processBundleZipEntry(
                  BundleContext.create(MIN_SDK_VERSION_SUPPORTING_LOSSLESS_WEBP), file))
      .isEmpty();
}