@Test
public void postProcessPartConverters() throws Exception {
HttpMessageConverters converters =
new HttpMessageConverters() {
@Override
protected List<HttpMessageConverter<?>> postProcessPartConverters(
List<HttpMessageConverter<?>> converters) {
for (Iterator<HttpMessageConverter<?>> iterator = converters.iterator();
iterator.hasNext(); ) {
if (iterator.next() instanceof MappingJackson2XmlHttpMessageConverter) {
iterator.remove();
}
}
return converters;
};
};
List<Class<?>> converterClasses = new ArrayList<Class<?>>();
for (HttpMessageConverter<?> converter :
extractFormPartConverters(converters.getConverters())) {
converterClasses.add(converter.getClass());
}
assertThat(converterClasses)
.containsExactly(
ByteArrayHttpMessageConverter.class,
StringHttpMessageConverter.class,
ResourceHttpMessageConverter.class,
SourceHttpMessageConverter.class,
MappingJackson2HttpMessageConverter.class);
}
@Test
public void addNewConverters() {
HttpMessageConverter<?> converter1 = mock(HttpMessageConverter.class);
HttpMessageConverter<?> converter2 = mock(HttpMessageConverter.class);
HttpMessageConverters converters = new HttpMessageConverters(converter1, converter2);
assertThat(converters.getConverters().get(0)).isEqualTo(converter1);
assertThat(converters.getConverters().get(1)).isEqualTo(converter2);
}
@Test
public void addBeforeExistingConverter() {
MappingJackson2HttpMessageConverter converter1 = new MappingJackson2HttpMessageConverter();
MappingJackson2HttpMessageConverter converter2 = new MappingJackson2HttpMessageConverter();
HttpMessageConverters converters = new HttpMessageConverters(converter1, converter2);
assertThat(converters.getConverters().contains(converter1)).isTrue();
assertThat(converters.getConverters().contains(converter2)).isTrue();
List<MappingJackson2HttpMessageConverter> httpConverters =
new ArrayList<MappingJackson2HttpMessageConverter>();
for (HttpMessageConverter<?> candidate : converters) {
if (candidate instanceof MappingJackson2HttpMessageConverter) {
httpConverters.add((MappingJackson2HttpMessageConverter) candidate);
}
}
// The existing converter is still there, but with a lower priority
assertThat(httpConverters).hasSize(3);
assertThat(httpConverters.indexOf(converter1)).isEqualTo(0);
assertThat(httpConverters.indexOf(converter2)).isEqualTo(1);
assertThat(converters.getConverters().indexOf(converter1)).isNotEqualTo(0);
}
private void assertConverterBeanRegisteredWithHttpMessageConverters(Class<?> type) {
Object converter = this.context.getBean(type);
HttpMessageConverters converters = this.context.getBean(HttpMessageConverters.class);
assertTrue(converters.getConverters().contains(converter));
}
