/*
 * Copyright 2002-2019 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
 *
 *      https://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 org.springframework.security.web.authentication.logout;

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

import org.springframework.mock.web.MockHttpServletRequest;
import org.springframework.mock.web.MockHttpServletResponse;
import org.springframework.security.core.Authentication;
import org.springframework.security.web.header.HeaderWriter;

import static org.assertj.core.api.Assertions.assertThatIllegalArgumentException;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verify;

/**
 * @author Rafiullah Hamedy
 * @author Josh Cummings
 * @see HeaderWriterLogoutHandler
 */
public class HeaderWriterLogoutHandlerTests {

	private MockHttpServletResponse response;

	private MockHttpServletRequest request;

	@BeforeEach
	public void setup() {
		this.response = new MockHttpServletResponse();
		this.request = new MockHttpServletRequest();
	}

	@Test
	public void constructorWhenHeaderWriterIsNullThenThrowsException() {
		assertThatIllegalArgumentException().isThrownBy(() -> new HeaderWriterLogoutHandler(null))
				.withMessage("headerWriter cannot be null");
	}

	@Test
	public void logoutWhenHasHeaderWriterThenInvoked() {
		HeaderWriter headerWriter = mock(HeaderWriter.class);
		HeaderWriterLogoutHandler handler = new HeaderWriterLogoutHandler(headerWriter);
		handler.logout(this.request, this.response, mock(Authentication.class));
		verify(headerWriter).writeHeaders(this.request, this.response);
	}

}
