/*
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF 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
 *
 *     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.
 */

/**
* @author Aleksei Y. Semenov
* @version $Revision$
*/

package org.apache.harmony.security.tests.java.security;

import dalvik.annotation.TestTargetClass;
import dalvik.annotation.TestTargets;
import dalvik.annotation.TestLevel;
import dalvik.annotation.TestTargetNew;

import java.security.IdentityScope;
import java.security.Permission;
import java.security.Permissions;
import java.security.Security;
import java.security.SecurityPermission;

import org.apache.harmony.security.tests.support.IdentityScopeStub;

import junit.framework.TestCase;
@TestTargetClass(IdentityScope.class)
/**
 * Tests for <code>IdentityScope</code>
 * 
 */
@SuppressWarnings("deprecation")
public class IdentityScopeTest extends TestCase {

    public static class MySecurityManager extends SecurityManager {
        public Permissions denied = new Permissions(); 
        public void checkPermission(Permission permission){
            if (denied!=null && denied.implies(permission)) throw new SecurityException();
        }
    }
    
    public static void main(String[] args) {
        junit.textui.TestRunner.run(IdentityScopeTest.class);
    }
    
    IdentityScope is;

    /**
     * Class under test for String toString()
     */
    @TestTargetNew(
        level = TestLevel.COMPLETE,
        notes = "",
        method = "toString",
        args = {}
    )
    public final void testToString() {
        assertNotNull(new IdentityScopeStub("Aleksei Semenov").toString());
    }

    /**
     * test default constructor void IdentityScope()
     */
    @TestTargetNew(
        level = TestLevel.COMPLETE,
        notes = "",
        method = "IdentityScope",
        args = {}
    )
    public final void testIdentityScope() {
        assertNotNull(new IdentityScopeStub());
    }

    /**
     * check that void IdentityScope(String) creates instance with given name
     */
    @TestTargetNew(
        level = TestLevel.PARTIAL,
        notes = "Verifies just positive case with non null parameter",
        method = "IdentityScope",
        args = {java.lang.String.class}
    )
    public final void testIdentityScopeString() {
        is = new IdentityScopeStub("Aleksei Semenov");
        assertNotNull(is);
        assertEquals("Aleksei Semenov", is.getName());
    }

    /**
     * check that void IdentityScope(String, IdentityScope) creates instance with given name and within given scope
     */
    @TestTargetNew(
        level = TestLevel.PARTIAL,
        notes = "Verifies just positive test with both non null parameters",
        method = "IdentityScope",
        args = {java.lang.String.class, java.security.IdentityScope.class}
    )
    public final void testIdentityScopeStringIdentityScope() throws Exception {
        IdentityScope scope = new IdentityScopeStub("my scope");
        is = new IdentityScopeStub("Aleksei Semenov", scope);
        assertNotNull(is);
        assertEquals("Aleksei Semenov", is.getName());
        assertEquals(scope.getName(), is.getScope().getName());
    }

    /**
     * just call IdentityScope.getSystemScope()
     */
    @TestTargetNew(
        level = TestLevel.COMPLETE,
        notes = "",
        method = "getSystemScope",
        args = {}
    )
    public final void testGetSystemScope() {
        String name = Security.getProperty("system.scope");
        assertNotNull(name);
        IdentityScope scope = IdentityScope.getSystemScope(); 
        assertNotNull(scope);
        assertEquals(name, scope.getClass().getName());
    }

    /**
     * check that if permission given - set/get works
     * if permission is denied than SecurityException is thrown
     *
     */
    @TestTargets({
        @TestTargetNew(
            level = TestLevel.COMPLETE,
            notes = "",
            method = "setSystemScope",
            args = {java.security.IdentityScope.class}
        ),
        @TestTargetNew(
            level = TestLevel.COMPLETE,
            notes = "",
            method = "getSystemScope",
            args = {}
        )
    })
    public final void testSetSystemScope() {
//      default implementation is specified by security property system.scope
        IdentityScope systemScope = IdentityScope.getSystemScope();
        
        try {
            // all permissions are granted - sm is not installed
            is = new IdentityScopeStub("Aleksei Semenov");
            IdentityScopeStub.mySetSystemScope(is);
            assertSame(is, IdentityScope.getSystemScope());
            // all permissions are granted - sm is installed
            MySecurityManager sm = new MySecurityManager();
            System.setSecurityManager(sm);
            try {
                is = new IdentityScopeStub("aaa");
                IdentityScopeStub.mySetSystemScope(is);
                assertSame(is, IdentityScope.getSystemScope());       
                // permission is denied
                sm.denied.add(new SecurityPermission("setSystemScope"));
                IdentityScope is2 = new IdentityScopeStub("bbb");
                try{
                    IdentityScopeStub.mySetSystemScope(is2); 
                    fail("SecurityException should be thrown");
                } catch (SecurityException e){
                    assertSame(is, IdentityScope.getSystemScope());
                }
            } finally {
                System.setSecurityManager(null);
                assertNull("Error, security manager is not removed!", System.getSecurityManager());
            }
        } finally {
            IdentityScopeStub.mySetSystemScope(systemScope);
        }
    }
}