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/*
 * ============LICENSE_START==========================================
 * ONAP Portal SDK
 * ===================================================================
 * Copyright © 2018 AT&T Intellectual Property. All rights reserved.
 * ===================================================================
 *
 * Unless otherwise specified, all software contained herein is licensed
 * under the Apache License, Version 2.0 (the "License");
 * you may not use this software 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.
 *
 * Unless otherwise specified, all documentation contained herein is licensed
 * under the Creative Commons License, Attribution 4.0 Intl. (the "License");
 * you may not use this documentation except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *             https://creativecommons.org/licenses/by/4.0/
 *
 * Unless required by applicable law or agreed to in writing, documentation
 * 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.
 *
 * ============LICENSE_END============================================
 *
 * 
 */

package org.onap.portalapp.filter;

import java.io.IOException;
import java.util.Enumeration;
import java.util.Vector;

import static org.junit.Assert.assertEquals;

import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.ServletInputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.InjectMocks;
import org.mockito.Mock;
import org.mockito.Mockito;
import org.mockito.MockitoAnnotations;
import org.mockito.runners.MockitoJUnitRunner;
import org.onap.portalapp.filter.SecurityXssFilter.RequestWrapper;
import org.onap.portalapp.filter.SecurityXssFilter.RequestWrapper.CachedServletInputStream;
import org.powermock.api.mockito.PowerMockito;

@RunWith(MockitoJUnitRunner.class)
public class SecurityXssFilterTest {
	
	@InjectMocks
	SecurityXssFilter sec;
	
	@Mock
	Enumeration<String> enum_string;
	
	Vector<String> vec_String = new Vector<String>();
		
	String name;
	
	@Mock
	HttpServletRequest request;
	
	@Mock
	HttpServletResponse response;
	
	@Mock
	FilterChain filterChain;
	
	@Mock
	ServletInputStream inputStream;
	
	@Before
	public void init() {
		
		MockitoAnnotations.initMocks(this);
		
	}
	
	@Test(expected=NullPointerException.class)
	public void RequestWrapper_test_case1() throws ServletException, IOException { 
		
		vec_String.add("test1"); 		
		vec_String.add("test2");
		
		enum_string = vec_String.elements();
		
		Mockito.when(request.getMethod()).thenReturn("POST");
		Mockito.when(request.getParameterNames()).thenReturn(enum_string);
		
		sec.doFilterInternal(request, response, filterChain);
	}
	
	
	@Test(expected=NullPointerException.class)
	public void RequestWrapper_test_case2() throws ServletException, IOException { 
		
		vec_String.add("test1"); 		
		vec_String.add("test2");
		
		enum_string = vec_String.elements();
		
		Mockito.when(request.getMethod()).thenReturn("DELETE");
		Mockito.when(request.getParameterNames()).thenReturn(enum_string);
		
		sec.doFilterInternal(request, response, filterChain);
	}
	
	@Test
	public void getParameter_test() { 
		
		RequestWrapper reqWrap = Mockito.mock(RequestWrapper.class);
		Mockito.when(reqWrap.getParameter(name)).thenReturn("testString");
				
		assertEquals("testString", reqWrap.getParameter(name));
		
	}
	
	@Test
	public void getInputStream_test() throws IOException { 
		
		RequestWrapper reqWrap = PowerMockito.mock(RequestWrapper.class);
		
		CachedServletInputStream cacheStream = null;
		
		Mockito.when(reqWrap.getInputStream()).thenReturn(cacheStream);
				
		assertEquals(null, reqWrap.getInputStream());
		
	}
	

}