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      1 package com.android.overlaytest;
      2 
      3 import android.content.res.Configuration;
      4 import android.content.res.Resources;
      5 import android.test.AndroidTestCase;
      6 import java.io.InputStream;
      7 import java.util.Locale;
      8 
      9 public abstract class OverlayBaseTest extends AndroidTestCase {
     10     private Resources mResources;
     11     protected boolean mWithOverlay; // will be set by subclasses
     12 
     13     protected void setUp() {
     14         mResources = getContext().getResources();
     15     }
     16 
     17     private int calculateRawResourceChecksum(int resId) throws Throwable {
     18         InputStream input = null;
     19         try {
     20             input = mResources.openRawResource(resId);
     21             int ch, checksum = 0;
     22             while ((ch = input.read()) != -1) {
     23                 checksum = (checksum + ch) % 0xffddbb00;
     24             }
     25             return checksum;
     26         } finally {
     27             input.close();
     28         }
     29     }
     30 
     31     private void setLocale(String code) {
     32         Locale locale = new Locale(code);
     33         Locale.setDefault(locale);
     34         Configuration config = new Configuration();
     35         config.locale = locale;
     36         mResources.updateConfiguration(config, mResources.getDisplayMetrics());
     37     }
     38 
     39     private void assertResource(int resId, boolean ewo, boolean ew) throws Throwable {
     40         boolean expected = mWithOverlay ? ew : ewo;
     41         boolean actual = mResources.getBoolean(resId);
     42         assertEquals(expected, actual);
     43     }
     44 
     45     private void assertResource(int resId, String ewo, String ew) throws Throwable {
     46         String expected = mWithOverlay ? ew : ewo;
     47         String actual = mResources.getString(resId);
     48         assertEquals(expected, actual);
     49     }
     50 
     51     private void assertResource(int resId, int[] ewo, int[] ew) throws Throwable {
     52         int[] expected = mWithOverlay ? ew : ewo;
     53         int[] actual = mResources.getIntArray(resId);
     54         assertEquals("length:", expected.length, actual.length);
     55         for (int i = 0; i < actual.length; ++i) {
     56             assertEquals("index " + i + ":", actual[i], expected[i]);
     57         }
     58     }
     59 
     60     public void testBooleanOverlay() throws Throwable {
     61         // config_automatic_brightness_available has overlay (default config)
     62         final int resId = com.android.internal.R.bool.config_automatic_brightness_available;
     63         assertResource(resId, false, true);
     64     }
     65 
     66     public void testBoolean() throws Throwable {
     67         // config_annoy_dianne has no overlay
     68         final int resId = com.android.internal.R.bool.config_annoy_dianne;
     69         assertResource(resId, true, true);
     70     }
     71 
     72     public void testStringOverlay() throws Throwable {
     73         // phoneTypeCar has an overlay (default config), which shouldn't shadow
     74         // the Swedish translation
     75         final int resId = com.android.internal.R.string.phoneTypeCar;
     76         setLocale("sv_SE");
     77         assertResource(resId, "Bil", "Bil");
     78     }
     79 
     80     public void testStringSwedishOverlay() throws Throwable {
     81         // phoneTypeWork has overlay (no default config, only for lang=sv)
     82         final int resId = com.android.internal.R.string.phoneTypeWork;
     83         setLocale("en_US");
     84         assertResource(resId, "Work", "Work");
     85         setLocale("sv_SE");
     86         assertResource(resId, "Arbete", "Jobb");
     87     }
     88 
     89     public void testString() throws Throwable {
     90         // phoneTypeHome has no overlay
     91         final int resId = com.android.internal.R.string.phoneTypeHome;
     92         setLocale("en_US");
     93         assertResource(resId, "Home", "Home");
     94         setLocale("sv_SE");
     95         assertResource(resId, "Hem", "Hem");
     96     }
     97 
     98     public void testIntegerArrayOverlay() throws Throwable {
     99         // config_scrollBarrierVibePattern has overlay (default config)
    100         final int resId = com.android.internal.R.array.config_scrollBarrierVibePattern;
    101         assertResource(resId, new int[]{0, 15, 10, 10}, new int[]{100, 200, 300});
    102     }
    103 
    104     public void testIntegerArray() throws Throwable {
    105         // config_virtualKeyVibePattern has no overlay
    106         final int resId = com.android.internal.R.array.config_virtualKeyVibePattern;
    107         final int[] expected = {0, 10, 20, 30};
    108         assertResource(resId, expected, expected);
    109     }
    110 
    111     public void testAsset() throws Throwable {
    112         // drawable/default_background.jpg has overlay (default config)
    113         final int resId = com.android.internal.R.drawable.default_wallpaper;
    114         int actual = calculateRawResourceChecksum(resId);
    115         int expected = mWithOverlay ? 0x000051da : 0x0014ebce;
    116         assertEquals(expected, actual);
    117     }
    118 }
    119