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      1 /*
      2  * Copyright (C) 2007 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 import junit.framework.Assert;
     18 import java.lang.reflect.Method;
     19 
     20 /**
     21  * more string tests
     22  */
     23 public class Main {
     24     public static void main(String args[]) throws Exception {
     25         String test = "0123456789";
     26         String test1 = new String("0123456789");    // different object
     27         String test2 = new String("0123456780");    // different value
     28         String offset = new String("xxx0123456789yyy");
     29         String sub = offset.substring(3, 13);
     30         Object blah = new Object();
     31 
     32         Assert.assertTrue(test.equals(test));
     33         Assert.assertTrue(test.equals(test1));
     34         Assert.assertFalse(test.equals(test2));
     35 
     36         Assert.assertEquals(test.compareTo(test1), 0);
     37         Assert.assertTrue(test1.compareTo(test2) > 0);
     38         Assert.assertTrue(test2.compareTo(test1) < 0);
     39 
     40         Assert.assertEquals("".compareTo(""), 0);
     41         Assert.assertTrue(test.compareTo("") > 0);
     42         Assert.assertTrue("".compareTo(test) < 0);
     43 
     44         /* compare string with a nonzero offset, in left/right side */
     45         Assert.assertEquals(test.compareTo(sub), 0);
     46         Assert.assertEquals(sub.compareTo(test), 0);
     47         Assert.assertTrue(test.equals(sub));
     48         Assert.assertTrue(sub.equals(test));
     49         /* same base, one is a substring */
     50         Assert.assertFalse(offset.equals(sub));
     51         Assert.assertFalse(sub.equals(offset));
     52         /* wrong class */
     53         Assert.assertFalse(test.equals(blah));
     54 
     55         /* null ptr - throw */
     56         try {
     57             test.compareTo(null);
     58             Assert.fail("didn't get expected npe");
     59         } catch (NullPointerException npe) {
     60             System.out.println("Got expected npe");
     61         }
     62         /* null ptr - ok */
     63         Assert.assertFalse(test.equals(null));
     64 
     65         test = test.substring(1);
     66         Assert.assertTrue(test.equals("123456789"));
     67         Assert.assertFalse(test.equals(test1));
     68 
     69         test = test.substring(1);
     70         Assert.assertTrue(test.equals("23456789"));
     71 
     72         test = test.substring(1);
     73         Assert.assertTrue(test.equals("3456789"));
     74 
     75         test = test.substring(1);
     76         Assert.assertTrue(test.equals("456789"));
     77 
     78         test = test.substring(3,5);
     79         Assert.assertTrue(test.equals("78"));
     80 
     81         test = "this/is/a/path";
     82         String[] strings = test.split("/");
     83         Assert.assertEquals(4, strings.length);
     84 
     85         Assert.assertEquals("this is a path", test.replaceAll("/", " "));
     86         Assert.assertEquals("this is a path", test.replace("/", " "));
     87 
     88         Class Strings = Class.forName("com.android.org.bouncycastle.util.Strings");
     89         Method fromUTF8ByteArray = Strings.getDeclaredMethod("fromUTF8ByteArray", byte[].class);
     90         String result = (String) fromUTF8ByteArray.invoke(null, new byte[] {'O', 'K'});
     91         System.out.println(result);
     92     }
     93 }
     94