/*
 * 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.core.parameters;

import static org.assertj.core.api.Assertions.assertThat;

import java.util.Arrays;
import java.util.List;
import java.util.Set;

import org.junit.Before;
import org.junit.Test;
import org.springframework.core.DefaultParameterNameDiscoverer;
import org.springframework.core.LocalVariableTableParameterNameDiscoverer;
import org.springframework.core.ParameterNameDiscoverer;
import org.springframework.security.access.method.P;
import org.springframework.test.util.ReflectionTestUtils;

/**
 *
 * @author Rob Winch
 * @since 3.2
 */
@SuppressWarnings("unchecked")
public class DefaultSecurityParameterNameDiscovererTests {
	private DefaultSecurityParameterNameDiscoverer discoverer;

	@Before
	public void setup() {
		discoverer = new DefaultSecurityParameterNameDiscoverer();
	}

	@Test
	public void constructorDefault() {
		List<ParameterNameDiscoverer> discoverers = (List<ParameterNameDiscoverer>) ReflectionTestUtils
				.getField(discoverer, "parameterNameDiscoverers");

		assertThat(discoverers).hasSize(2);

		ParameterNameDiscoverer annotationDisc = discoverers.get(0);
		assertThat(annotationDisc).isInstanceOf(AnnotationParameterNameDiscoverer.class);
		Set<String> annotationsToUse = (Set<String>) ReflectionTestUtils.getField(
				annotationDisc, "annotationClassesToUse");
		assertThat(annotationsToUse).containsOnly(P.class.getName());

		assertThat(discoverers.get(1).getClass()).isEqualTo(
				DefaultParameterNameDiscoverer.class);
	}

	@Test
	public void constructorDiscoverers() {
		discoverer = new DefaultSecurityParameterNameDiscoverer(
				Arrays.asList(new LocalVariableTableParameterNameDiscoverer()));

		List<ParameterNameDiscoverer> discoverers = (List<ParameterNameDiscoverer>) ReflectionTestUtils
				.getField(discoverer, "parameterNameDiscoverers");

		assertThat(discoverers).hasSize(3);
		assertThat(discoverers.get(0)).isInstanceOf(
				LocalVariableTableParameterNameDiscoverer.class);

		ParameterNameDiscoverer annotationDisc = discoverers.get(1);
		assertThat(annotationDisc).isInstanceOf(AnnotationParameterNameDiscoverer.class);
		Set<String> annotationsToUse = (Set<String>) ReflectionTestUtils.getField(
				annotationDisc, "annotationClassesToUse");
		assertThat(annotationsToUse).containsOnly(P.class.getName());

		assertThat(discoverers.get(2)).isInstanceOf(
				DefaultParameterNameDiscoverer.class);
	}
}