Merge "Prepare for upgrade to Truth 0.42"

        return Files.createTempFile(mContext.getCacheDir().toPath(), "backup", ".tmp");

    }

    private static IterableSubject<

                    ? extends IterableSubject<?, Path, Iterable<Path>>, Path, Iterable<Path>>

            assertDirectory(Path directory) throws IOException {

    private static IterableSubject assertDirectory(Path directory) throws IOException {

        return assertThat(oneTimeIterable(Files.newDirectoryStream(directory).iterator()))

                .named("directory " + directory);

    }