C24HttpMessageConverterUnitTests.java

/*
 * Copyright 2011 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *			http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package biz.c24.io.spring.http;

import static org.hamcrest.CoreMatchers.*;
import static org.junit.Assert.*;
import static org.mockito.Mockito.*;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.util.Collections;

import nonamespace.CustomerLocal;
import nonamespace.SampleModelDocumentRootElement;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Mock;
import org.mockito.runners.MockitoJUnitRunner;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpInputMessage;
import org.springframework.http.MediaType;

import biz.c24.io.spring.core.C24Model;
import biz.c24.io.spring.core.DataFormat;
import biz.c24.io.spring.core.DataFormat.Type;
import biz.c24.io.spring.model.TestConstants;

/**
 * 
 * @author Oliver Gierke
 */
@RunWith(MockitoJUnitRunner.class)
public class C24HttpMessageConverterUnitTests {

	C24Model model = new C24Model(SampleModelDocumentRootElement.getInstance());
	C24HttpMessageConverter converter = new C24HttpMessageConverter(model,
			Collections.singleton(new DataFormat(Type.XML)));

	@Mock
	HttpInputMessage inputMessage;

	@Test
	public void canConvertClassIfMediaTypeMatches() {
		assertThat(converter.canRead(CustomerLocal.class, MediaType.APPLICATION_XML), is(true));
	}

	@Test
	public void cannotConvertNonComplexDataObject() {
		assertThat(converter.canRead(String.class, MediaType.APPLICATION_XML), is(false));
	}

	@Test
	public void cannotConvertNonMatchingMediaType() {
		C24HttpMessageConverter converter = new C24HttpMessageConverter(model, Collections.singleton(new DataFormat(
				Type.TEXT)));
		assertThat(converter.canRead(CustomerLocal.class, MediaType.APPLICATION_XML), is(false));
	}

	@Test
	public void readsXmlCorrectly() throws IOException {

		when(inputMessage.getBody()).thenReturn(new ByteArrayInputStream(TestConstants.SAMPLE_XML.getBytes()));
		HttpHeaders headers = new HttpHeaders();
		headers.setContentType(MediaType.APPLICATION_XML);
		when(inputMessage.getHeaders()).thenReturn(headers);

		CustomerLocal result = (CustomerLocal) converter.read(CustomerLocal.class, inputMessage);
		assertThat(result, is(notNullValue()));
		assertThat(result.getFirstname(), is("Firstname"));
	}
}