/*
 * Copyright 2002-2017 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 org.springframework.security.web.server.util.matcher;

import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.Mock;
import org.mockito.junit.MockitoJUnitRunner;
import org.springframework.http.HttpMethod;
import org.springframework.mock.http.server.reactive.MockServerHttpRequest;
import org.springframework.mock.http.server.reactive.MockServerHttpResponse;
import org.springframework.mock.web.server.MockServerWebExchange;
import org.springframework.web.server.session.DefaultWebSessionManager;
import org.springframework.web.util.pattern.PathPattern;

import java.util.HashMap;

import static org.assertj.core.api.Assertions.assertThat;
import static org.mockito.Matchers.any;
import static org.mockito.Mockito.verifyZeroInteractions;
import static org.mockito.Mockito.when;

/**
 * @author Rob Winch
 * @since 5.0
 */
@RunWith(MockitoJUnitRunner.class)
public class PathMatcherServerWebExchangeMatcherTests {
	@Mock
	PathPattern pattern;
	@Mock
	PathPattern.PathMatchInfo pathMatchInfo;
	MockServerWebExchange exchange;
	PathPatternParserServerWebExchangeMatcher matcher;
	String path;

	@Before
	public void setup() {
		MockServerHttpRequest request = MockServerHttpRequest.post("/path").build();
		MockServerHttpResponse response = new MockServerHttpResponse();
		DefaultWebSessionManager sessionManager = new DefaultWebSessionManager();
		exchange = MockServerWebExchange.from(request);
		path = "/path";

		matcher = new PathPatternParserServerWebExchangeMatcher(pattern);
	}

	@Test(expected = IllegalArgumentException.class)
	public void constructorPatternWhenPatternNullThenThrowsException() {
		new PathPatternParserServerWebExchangeMatcher((PathPattern) null);
	}

	@Test(expected = IllegalArgumentException.class)
	public void constructorPatternAndMethodWhenPatternNullThenThrowsException() {
		new PathPatternParserServerWebExchangeMatcher((PathPattern) null, HttpMethod.GET);
	}

	@Test
	public void matchesWhenPathMatcherTrueThenReturnTrue() {
		when(pattern.matches(any())).thenReturn(true);
		when(pattern.matchAndExtract(any())).thenReturn(pathMatchInfo);
		when(pathMatchInfo.getUriVariables()).thenReturn(new HashMap<>());

		assertThat(matcher.matches(exchange).block().isMatch()).isTrue();
	}

	@Test
	public void matchesWhenPathMatcherFalseThenReturnFalse() {
		when(pattern.matches(any())).thenReturn(false);

		assertThat(matcher.matches(exchange).block().isMatch()).isFalse();
	}

	@Test
	public void matchesWhenPathMatcherTrueAndMethodTrueThenReturnTrue() {
		matcher = new PathPatternParserServerWebExchangeMatcher(pattern, exchange.getRequest().getMethod());
		when(pattern.matches(any())).thenReturn(true);
		when(pattern.matchAndExtract(any())).thenReturn(pathMatchInfo);
		when(pathMatchInfo.getUriVariables()).thenReturn(new HashMap<>());

		assertThat(matcher.matches(exchange).block().isMatch()).isTrue();
	}

	@Test
	public void matchesWhenPathMatcherTrueAndMethodFalseThenReturnFalse() {
		HttpMethod method = HttpMethod.OPTIONS;
		assertThat(exchange.getRequest().getMethod()).isNotEqualTo(method);
		matcher = new PathPatternParserServerWebExchangeMatcher(pattern, method);

		assertThat(matcher.matches(exchange).block().isMatch()).isFalse();

		verifyZeroInteractions(pattern);
	}
}
