/**
* Copyright (C) 2012-2014 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 ninja.utils;
import java.io.OutputStream;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.mockito.Matchers.any;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;
import java.io.Writer;
import ninja.Context;
import ninja.Result;
import ninja.Results;
import ninja.template.TemplateEngine;
import ninja.template.TemplateEngineManager;
import static org.hamcrest.CoreMatchers.equalTo;
import static org.junit.Assert.assertThat;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Mock;
import org.mockito.runners.MockitoJUnitRunner;
import org.slf4j.Logger;
@RunWith(MockitoJUnitRunner.class)
public class ResultHandlerTest {
@Mock
private TemplateEngineManager templateEngineManager;
@Mock
private TemplateEngine templateEngine;
@Mock
private TemplateEngine templateEngineHtml;
@Mock
private ResponseStreams responseStreams;
@Mock
private OutputStream outputStream;
@Mock
private Writer writer;
private ResultHandler resultHandler;
@Mock
private Context context;
@Mock
Logger logger;
@Before
public void init() throws Exception {
resultHandler = new ResultHandler(logger, templateEngineManager);
when(responseStreams.getOutputStream()).thenReturn(outputStream);
when(responseStreams.getWriter()).thenReturn(writer);
when(context.finalizeHeaders(any(Result.class)))
.thenReturn(responseStreams);
when(templateEngineManager
.getTemplateEngineForContentType(Result.APPLICATON_JSON))
.thenReturn(templateEngine);
when(templateEngineManager.getTemplateEngineForContentType(Result.TEXT_HTML))
.thenReturn(templateEngineHtml);
}
/**
* If Cache-Control is not set the no-cache strategy has to be applied.
*
* We expect Cache-Control: ... Date: ... Expires: ...
*/
@Test
public void testAddingOfDefaultHeadersWorks() {
Result result = Results.json();
// just a new object as dummy...
result.render(new Object());
// make sure the stuff is not set by default json method (just in
// case...)
assertNull(result.getHeaders().get(Result.CACHE_CONTROL));
assertNull(result.getHeaders().get(Result.DATE));
assertNull(result.getHeaders().get(Result.EXPIRES));
// handle result
resultHandler.handleResult(result, context);
// make sure stuff is there:
assertEquals(Result.CACHE_CONTROL_DEFAULT_NOCACHE_VALUE, result
.getHeaders().get(Result.CACHE_CONTROL));
assertNotNull(result.getHeaders().get(Result.DATE));
assertEquals(DateUtil.formatForHttpHeader(0L),
result.getHeaders().get(Result.EXPIRES));
}
@Test
public void testCacheControlDoesNotGetTouchedWhenSet() {
Result result = Results.json();
// just a simple cache control header:
result.addHeader(Result.CACHE_CONTROL, "must-revalidate");
// just a new object as dummy...
result.render(new Object());
// handle result
resultHandler.handleResult(result, context);
// make sure stuff is there:
assertEquals("must-revalidate",
result.getHeaders().get(Result.CACHE_CONTROL));
assertNull(result.getHeaders().get(Result.DATE));
assertNull(result.getHeaders().get(Result.EXPIRES));
}
@Test
public void testRenderPlainStringAndSetDefaultContentType() {
final String toRender = "this is just a plain string";
Result result = Results.ok();
result.renderRaw(toRender);
resultHandler.handleResult(result, context);
assertEquals(Result.TEXT_PLAIN, result.getContentType());
}
@Test
public void testContentNegotiation() {
when(context.getAcceptContentType()).thenReturn("text/html");
Result result = Results.ok();
resultHandler.handleResult(result, context);
assertEquals("text/html", result.getContentType());
verify(templateEngineHtml).invoke(context, result);
}
@Test
public void testRenderPlainStringLeavesExplicitlySetContentTypeUntouched() {
final String toRender = "this is just a plain string";
final String contentType = "any/contenttype";
Result result = Results.ok();
result.contentType(contentType);
result.renderRaw(toRender);
resultHandler.handleResult(result, context);
assertEquals(contentType, result.getContentType());
}
@Test
public void testRenderPictureFromBytes() {
final byte[] toRender = new byte[] { 1, 2, 3 };
final String contentType = "image/png";
Result result = Results.ok();
result.contentType(contentType);
result.renderRaw(toRender);
resultHandler.handleResult(result, context);
assertEquals(contentType, result.getContentType());
}
@Test
public void testThatNoHttpBodyWorks() {
// make sure that NoHttpBody causes the resulthandler to finalize
// the context and does not call a tempate render engine.
Result result = new Result(200);
result.render(new NoHttpBody());
resultHandler.handleResult(result, context);
verify(context).finalizeHeaders(result);
}
@Test
public void testThatFallbackContentTypeWorks() {
Result result
= new Result(200)
.fallbackContentType(Result.TEXT_HTML)
.contentType(null);
resultHandler.handleResult(result, context);
assertThat(result.getContentType(), equalTo(Result.TEXT_HTML));
}
}