3 import static org.junit.Assert.assertEquals;
4 import static org.junit.Assert.assertNull;
5 import static org.junit.Assert.assertTrue;
7 import java.util.Arrays;
11 public class StringUtilsTest
15 public void testInsertCharAt()
17 char[] c1 = "ABC".toCharArray();
18 char[] expected = new char[]
19 { 'A', 'B', 'C', 'w', 'w' };
20 assertTrue(Arrays.equals(expected,
21 StringUtils.insertCharAt(c1, 3, 2, 'w')));
23 { 'A', 'B', 'C', 'w', 'w' };
24 assertTrue(Arrays.equals(expected,
25 StringUtils.insertCharAt(c1, 4, 2, 'w')));
26 assertTrue(Arrays.equals(expected,
27 StringUtils.insertCharAt(c1, 5, 2, 'w')));
28 assertTrue(Arrays.equals(expected,
29 StringUtils.insertCharAt(c1, 6, 2, 'w')));
30 assertTrue(Arrays.equals(expected,
31 StringUtils.insertCharAt(c1, 7, 2, 'w')));
35 public void testDeleteChars()
37 char[] c1 = "ABC".toCharArray();
39 // delete second position
40 assertTrue(Arrays.equals(new char[]
41 { 'A', 'C' }, StringUtils.deleteChars(c1, 1, 2)));
43 // delete positions 1 and 2
44 assertTrue(Arrays.equals(new char[]
45 { 'C' }, StringUtils.deleteChars(c1, 0, 2)));
47 // delete positions 1-3
48 assertTrue(Arrays.equals(new char[]
49 {}, StringUtils.deleteChars(c1, 0, 3)));
52 assertTrue(Arrays.equals(new char[]
53 { 'A', 'B' }, StringUtils.deleteChars(c1, 2, 3)));
55 // out of range deletion is ignore
56 assertTrue(Arrays.equals(c1, StringUtils.deleteChars(c1, 3, 4)));
60 public void testGetLastToken()
62 assertNull(StringUtils.getLastToken(null, null));
63 assertNull(StringUtils.getLastToken(null, "/"));
64 assertEquals("a", StringUtils.getLastToken("a", null));
66 assertEquals("abc", StringUtils.getLastToken("abc", "/"));
67 assertEquals("c", StringUtils.getLastToken("abc", "b"));
68 assertEquals("file1.dat", StringUtils.getLastToken(
69 "file://localhost:8080/data/examples/file1.dat", "/"));