/**
 * Licensed to Apereo under one or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information regarding copyright ownership. Apereo
 * licenses this file to you 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 the
 * following location:
 *
 * <p>http://www.apache.org/licenses/LICENSE-2.0
 *
 * <p>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.apereo.portal.layout.profile;

import static org.junit.Assert.assertEquals;
import static org.mockito.Mockito.*;

import java.util.ArrayList;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import org.apereo.portal.layout.IUserLayoutStore;
import org.apereo.portal.security.IPerson;
import org.junit.Before;
import org.junit.Test;
import org.mockito.InjectMocks;
import org.mockito.Mock;
import org.mockito.MockitoAnnotations;

/**
 */
public class ChainingProfileMapperImplTest {

    @InjectMocks ChainingProfileMapperImpl mapper = new ChainingProfileMapperImpl();

    @Mock IPerson person;
    @Mock HttpServletRequest request;
    @Mock IProfileMapper subMapper1;
    @Mock IProfileMapper subMapper2;

    @Mock IUserLayoutStore layoutStore;

    @Before
    public void setUp() {
        MockitoAnnotations.initMocks(this);

        mapper.setDefaultProfileName("profile");

        List<IProfileMapper> subMappers = new ArrayList<IProfileMapper>();
        subMappers.add(subMapper1);
        subMappers.add(subMapper2);
        mapper.setSubMappers(subMappers);
    }

    @Test
    public void testDefaultProfile() {
        String fname = mapper.getProfileFname(person, request);
        assertEquals("profile", fname);
    }

    @Test
    public void testFirstProfile() {
        when(subMapper1.getProfileFname(person, request)).thenReturn("profile1");
        when(subMapper2.getProfileFname(person, request)).thenReturn("profile2");
        String fname = mapper.getProfileFname(person, request);
        assertEquals("profile1", fname);
    }

    @Test
    public void testSecondProfile() {
        when(subMapper2.getProfileFname(person, request)).thenReturn("profile2");
        String fname = mapper.getProfileFname(person, request);
        assertEquals("profile2", fname);
    }

    /** Fails gracefully when one mapper fails, proceeding to the next mapper. */
    @Test
    public void testFailsGracefullyProceedingToNextMapper() {
        when(subMapper1.getProfileFname(person, request)).thenThrow(RuntimeException.class);
        when(subMapper2.getProfileFname(person, request)).thenReturn("profile2");
        String fname = mapper.getProfileFname(person, request);
        assertEquals("profile2", fname);
    }

    /** Fails gracefully when the last mapper throws, falling back on the default. */
    @Test
    public void testFailsGracefullyToDefaultWhenLastMapperThrows() {
        when(subMapper2.getProfileFname(person, request)).thenThrow(RuntimeException.class);
        String fname = mapper.getProfileFname(person, request);
        // "profile" is the default profile name configured in setUp().
        assertEquals("profile", fname);
    }
}