tests/tests/os/src/android/os/cts/StatFsTest.java

/*
 * 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.os.cts;

import java.io.File;

import junit.framework.TestCase;
import android.os.Environment;
import android.os.StatFs;

public class StatFsTest extends TestCase {
    public void testStatFs() {
        File path = Environment.getDataDirectory();
        StatFs stat = new StatFs(path.getPath());

        assertTrue(stat.getBlockSize() > 0);
        assertTrue(stat.getBlockCount() > 0);
        assertTrue(stat.getFreeBlocks() >= stat.getAvailableBlocks());
        assertTrue(stat.getAvailableBlocks() > 0);

        assertTrue(stat.getBlockSizeLong() > 0);
        assertTrue(stat.getBlockCountLong() > 0);
        assertTrue(stat.getFreeBlocksLong() >= stat.getAvailableBlocksLong());
        assertTrue(stat.getAvailableBlocksLong() > 0);

        assertTrue(stat.getFreeBytes() > 0);
        assertTrue(stat.getAvailableBytes() > 0);
        assertTrue(stat.getTotalBytes() > 0);

        path = Environment.getRootDirectory();
        stat.restat(path.getPath());

        assertTrue(stat.getBlockSize() > 0);
        assertTrue(stat.getBlockCount() > 0);
        assertTrue(stat.getFreeBlocks() >= stat.getAvailableBlocks());
        assertTrue(stat.getAvailableBlocks() >= 0);

        assertTrue(stat.getBlockSizeLong() > 0);
        assertTrue(stat.getBlockCountLong() > 0);
        assertTrue(stat.getFreeBlocksLong() >= stat.getAvailableBlocksLong());
        assertTrue(stat.getAvailableBlocksLong() >= 0);

        assertTrue(stat.getFreeBytes() >= 0);
        assertTrue(stat.getAvailableBytes() >= 0);
        assertTrue(stat.getTotalBytes() > 0);
    }
}