/*
 * Copyright (C) 2009 The Android Open Source Project
 *
 * 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 android.permission.cts;

import dalvik.annotation.BrokenTest;
import dalvik.annotation.TestTargetClass;

import android.app.Activity;
import android.app.ActivityManager;
import android.app.AlertDialog;
import android.content.Context;
import android.test.ActivityInstrumentationTestCase2;
import android.test.UiThreadTest;
import android.test.suitebuilder.annotation.MediumTest;
import android.test.suitebuilder.annotation.Suppress;
import android.view.WindowManager;
import android.view.WindowManager.BadTokenException;

/**
 * Verify the Activity related operations require specific permissions.
 */
@TestTargetClass(Activity.class)
public class NoActivityRelatedPermissionTest
        extends ActivityInstrumentationTestCase2<PermissionStubActivity> {

    private PermissionStubActivity mActivity;

    public NoActivityRelatedPermissionTest() {
        super("com.android.cts.permission", PermissionStubActivity.class);
    }

    @Override
    protected void setUp() throws Exception {
        super.setUp();
        mActivity = getActivity();
    }

    /**
     * Verify that adding window of different types in Window Manager requires permissions.
     * <p>Requires Permission:
     *   {@link android.Manifest.permission#SYSTEM_ALERT_WINDOW}.
     */
    @UiThreadTest
    @MediumTest
    @Suppress
    @BrokenTest("This test passes, but crashes the UI thread later on. See issues 1909470, 1910487")
    public void testSystemAlertWindow() {
        final int[] types = new int[] {
                WindowManager.LayoutParams.TYPE_PHONE,
                WindowManager.LayoutParams.TYPE_PRIORITY_PHONE,
                WindowManager.LayoutParams.TYPE_SYSTEM_ALERT,
                WindowManager.LayoutParams.TYPE_SYSTEM_ERROR,
                WindowManager.LayoutParams.TYPE_SYSTEM_OVERLAY,
            };

        AlertDialog dialog = (AlertDialog) (mActivity.getDialog());
        // Use normal window type will success
        dialog.getWindow().setType(WindowManager.LayoutParams.TYPE_APPLICATION);
        dialog.show();

        // Test special window types which need to be check SYSTEM_ALERT_WINDOW
        // permission.
        for (int i = 0; i < types.length; i++) {
            dialog = (AlertDialog) (mActivity.getDialog());
            dialog.getWindow().setType(types[i]);
            try {
                dialog.show();
                // This throws an exception as expected, but only after already adding
                // a new view to the view hierarchy. This later results in a NullPointerException
                // when the activity gets destroyed. Since that crashes the UI thread and causes
                // test runs to abort, this test is currently excluded.
                fail("Add dialog to Window Manager did not throw BadTokenException as expected");
            } catch (BadTokenException e) {
                // Expected
            }
        }
    }

    /**
     * Verify that get task requires permissions.
     * <p>Requires Permission:
     *   {@link android.Manifest.permission#GET_TASKS}
     */
    @MediumTest
    public void testGetTask() {
        ActivityManager manager = (ActivityManager) getActivity()
                .getSystemService(Context.ACTIVITY_SERVICE);
        try {
            manager.getRunningTasks(1);
            fail("Activity.getRunningTasks did not throw SecurityException as expected");
        } catch (SecurityException e) {
            // Expected
        }

        try {
            manager.getRecentTasks(1, 0);
            fail("Activity.getRunningTasks did not throw SecurityException as expected");
        } catch (SecurityException e) {
            // Expected
        }
    }
}