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      1 /*
      2  * Copyright (C) 2017 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 package android.os;
     18 
     19 import static android.os.Environment.HAS_ANDROID;
     20 import static android.os.Environment.HAS_DCIM;
     21 import static android.os.Environment.HAS_DOWNLOADS;
     22 import static android.os.Environment.HAS_OTHER;
     23 import static android.os.Environment.classifyExternalStorageDirectory;
     24 
     25 import static org.junit.Assert.assertEquals;
     26 
     27 import android.content.Context;
     28 import android.support.test.InstrumentationRegistry;
     29 import android.support.test.runner.AndroidJUnit4;
     30 
     31 import org.junit.After;
     32 import org.junit.Before;
     33 import org.junit.Test;
     34 import org.junit.runner.RunWith;
     35 
     36 import java.io.File;
     37 
     38 @RunWith(AndroidJUnit4.class)
     39 public class EnvironmentTest {
     40     private File dir;
     41 
     42     private Context getContext() {
     43         return InstrumentationRegistry.getContext();
     44     }
     45 
     46     @Before
     47     public void setUp() throws Exception {
     48         dir = getContext().getDir("testing", Context.MODE_PRIVATE);
     49         FileUtils.deleteContents(dir);
     50     }
     51 
     52     @After
     53     public void tearDown() throws Exception {
     54         FileUtils.deleteContents(dir);
     55     }
     56 
     57     @Test
     58     public void testClassify_empty() {
     59         assertEquals(0, classifyExternalStorageDirectory(dir));
     60     }
     61 
     62     @Test
     63     public void testClassify_emptyDirs() {
     64         Environment.buildPath(dir, "DCIM").mkdirs();
     65         Environment.buildPath(dir, "DCIM", "January").mkdirs();
     66         Environment.buildPath(dir, "Downloads").mkdirs();
     67         Environment.buildPath(dir, "LOST.DIR").mkdirs();
     68         assertEquals(0, classifyExternalStorageDirectory(dir));
     69     }
     70 
     71     @Test
     72     public void testClassify_emptyFactory() throws Exception {
     73         Environment.buildPath(dir, "autorun.inf").createNewFile();
     74         Environment.buildPath(dir, "LaunchU3.exe").createNewFile();
     75         Environment.buildPath(dir, "LaunchPad.zip").createNewFile();
     76         assertEquals(0, classifyExternalStorageDirectory(dir));
     77     }
     78 
     79     @Test
     80     public void testClassify_photos() throws Exception {
     81         Environment.buildPath(dir, "DCIM").mkdirs();
     82         Environment.buildPath(dir, "DCIM", "IMG_1024.JPG").createNewFile();
     83         Environment.buildPath(dir, "Download").mkdirs();
     84         Environment.buildPath(dir, "Download", "foobar.pdf").createNewFile();
     85         assertEquals(HAS_DCIM | HAS_DOWNLOADS, classifyExternalStorageDirectory(dir));
     86     }
     87 
     88     @Test
     89     public void testClassify_other() throws Exception {
     90         Environment.buildPath(dir, "Android").mkdirs();
     91         Environment.buildPath(dir, "Android", "com.example").mkdirs();
     92         Environment.buildPath(dir, "Android", "com.example", "internal.dat").createNewFile();
     93         Environment.buildPath(dir, "Linux").mkdirs();
     94         Environment.buildPath(dir, "Linux", "install-amd64-minimal-20170907.iso").createNewFile();
     95         assertEquals(HAS_ANDROID | HAS_OTHER, classifyExternalStorageDirectory(dir));
     96     }
     97 
     98     @Test
     99     public void testClassify_otherRoot() throws Exception {
    100         Environment.buildPath(dir, "Taxes.pdf").createNewFile();
    101         assertEquals(HAS_OTHER, classifyExternalStorageDirectory(dir));
    102     }
    103 }
    104