/*
 * Copyright 2005-2010 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.wamblee.security.authorization;

import static org.wamblee.security.authorization.AuthorizationResult.*;
import junit.framework.TestCase;

/**
 * Tests for the {@link org.wamblee.security.authorization.UrlAuthorizationRule}
 * .
 * 
 * @author Erik Brakkee
 */
public class UrlAuthorizationRuleTest extends TestCase {

    private TestUserAccessor userAccessor;

    public void setUp() {
        userAccessor = new TestUserAccessor();

    }

    /**
     * Constructs the rule with a result of UNDECIDED. Verifies that an
     * IllegalArgumentException is thrown.
     */
    public void testConstructWithUndecidedResult() {
        try {
            new TestAuthorizationRule(UNDECIDED, "users", "/path",
                ReadOperation.class);
            fail();
        } catch (IllegalArgumentException e) {
            // ok
        }
    }

    /**
     * Constructs the rule with a result of UNSUPPORTED_RESOURCE. Verifies that
     * an IllegalArgumentException is thrown.
     */
    public void testConstructWithUnsupportedResult() {
        try {
            new TestAuthorizationRule(UNSUPPORTED_RESOURCE, "users", "/path",
                ReadOperation.class);
            fail();
        } catch (IllegalArgumentException e) {
            // ok
        }
    }

    /**
     * Constructs the authorization rule and applies it to an unsupported object
     * type. Verifies that the result is UNSUPPORTED_RESOURCE.
     */
    public void testUnsupportedObject() {
        AuthorizationRule rule = new TestAuthorizationRule(GRANTED, "users",
            "/path", ReadOperation.class);
        rule.setUserAdministration(userAccessor.getUserAdmin());
        assertEquals(UNSUPPORTED_RESOURCE, rule.isAllowed("hello",
            new ReadOperation(), userAccessor.getCurrentUser()));
    }

    public void testMatchingScenarios() {
        AuthorizationRule rule = new TestAuthorizationRule(GRANTED, "users",
            "/path/", ReadOperation.class);
        rule.setUserAdministration(userAccessor.getUserAdmin());
        String user = userAccessor.getCurrentUser();

        // everything matches
        assertEquals(GRANTED, rule.isAllowed(new TestResource("/path/a"),
            new ReadOperation(), user));
        assertEquals(GRANTED, rule.isAllowed(new TestResource("/path/"),
            new ReadOperation(), user));

        // path does not match.
        assertEquals(UNDECIDED, rule.isAllowed(new TestResource("/path"),
            new ReadOperation(), user));

        // operation does not match.
        assertEquals(UNDECIDED, rule.isAllowed(new TestResource("/path/"),
            new WriteOperation(), user));

        // group does not match.
        AuthorizationRule rule2 = new TestAuthorizationRule(GRANTED, "users2",
            "/path/", ReadOperation.class);
        rule2.setUserAdministration(userAccessor.getUserAdmin());
        assertEquals(UNDECIDED, rule2.isAllowed(new TestResource("/path/a"),
            new ReadOperation(), user));
    }
}