@Test
public void callToConvertAddsMoreSupportedFormatsToTheContext() throws Exception {

    ConversionContext context = new ConversionContext.Builder(TypeLiteral.of(URL.class)).build();
    URLConverter converter = new URLConverter();
    converter.convert("http://localhost", context);
    assertThat(context.getSupportedFormats()).contains("<URL> (URLConverter)");
}