/***
 * Copyright (c) 2009 Caelum - www.caelum.com.br/opensource
 * All rights reserved.
 *
 * 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 br.com.caelum.vraptor.interceptor;

import static org.junit.Assert.assertTrue;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;

import java.io.IOException;
import java.util.EnumSet;

import org.junit.Before;
import org.junit.Test;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;

import br.com.caelum.vraptor.InterceptionException;
import br.com.caelum.vraptor.core.InterceptorStack;
import br.com.caelum.vraptor.core.MethodInfo;
import br.com.caelum.vraptor.core.RequestInfo;
import br.com.caelum.vraptor.http.MutableRequest;
import br.com.caelum.vraptor.http.MutableResponse;
import br.com.caelum.vraptor.http.UrlToResourceTranslator;
import br.com.caelum.vraptor.http.route.MethodNotAllowedException;
import br.com.caelum.vraptor.http.route.ResourceNotFoundException;
import br.com.caelum.vraptor.resource.HttpMethod;
import br.com.caelum.vraptor.resource.MethodNotAllowedHandler;
import br.com.caelum.vraptor.resource.ResourceMethod;
import br.com.caelum.vraptor.resource.ResourceNotFoundHandler;

public class ResourceLookupInterceptorTest {

	private @Mock UrlToResourceTranslator translator;
	private @Mock MutableRequest webRequest;
	private @Mock MutableResponse webResponse;
	private @Mock RequestInfo info;
	private ResourceLookupInterceptor lookup;
	private @Mock MethodInfo methodInfo;
	private @Mock ResourceNotFoundHandler notFoundHandler;
	private @Mock MethodNotAllowedHandler methodNotAllowedHandler;

	@Before
	public void config() {
		MockitoAnnotations.initMocks(this);
	info = new RequestInfo(null, null, webRequest, webResponse);
	lookup = new ResourceLookupInterceptor(translator, methodInfo, notFoundHandler, methodNotAllowedHandler, info);
	}
	
	@Test
	public void shouldAcceptAlways() {
		assertTrue(lookup.accepts(null));
	}

	@Test
	public void shouldHandle404() throws IOException, InterceptionException {
	when(translator.translate(info)).thenThrow(new ResourceNotFoundException());
		
	lookup.intercept(null, null, null);
	verify(notFoundHandler).couldntFind(info);
	}

	@Test
	public void shouldHandle405() throws IOException, InterceptionException {
		EnumSet<HttpMethod> allowedMethods = EnumSet.of(HttpMethod.GET);
		
	when(translator.translate(info)).thenThrow(new MethodNotAllowedException(allowedMethods, HttpMethod.POST.toString()));
		
	lookup.intercept(null, null, null);
	verify(methodNotAllowedHandler).deny(info, allowedMethods);
	}

	@Test
	public void shouldUseResourceMethodFoundWithNextInterceptor() throws IOException, InterceptionException {
	final ResourceMethod method = mock(ResourceMethod.class);
	final InterceptorStack stack = mock(InterceptorStack.class);
	
	when(translator.translate(info)).thenReturn(method);
	
	lookup.intercept(stack, null, null);
	verify(stack).next(method, null);
	verify(methodInfo).setResourceMethod(method);
	}
}