1 /************************************************************************* |
|
2 /* Unread.java - Test basic unread functionality of PushbackReader |
|
3 /* |
|
4 /* Copyright (c) 1998 Free Software Foundation, Inc. |
|
5 /* Written by Aaron M. Renn (arenn@urbanophile.com) |
|
6 /* |
|
7 /* This program is free software; you can redistribute it and/or modify |
|
8 /* it under the terms of the GNU General Public License as published |
|
9 /* by the Free Software Foundation, either version 2 of the License, or |
|
10 /* (at your option) any later version. |
|
11 /* |
|
12 /* This program is distributed in the hope that it will be useful, but |
|
13 /* WITHOUT ANY WARRANTY; without even the implied warranty of |
|
14 /* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
|
15 /* GNU General Public License for more details. |
|
16 /* |
|
17 /* You should have received a copy of the GNU General Public License |
|
18 /* along with this program; if not, write to the Free Software Foundation |
|
19 /* Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307 USA |
|
20 /*************************************************************************/ |
|
21 |
|
22 // Tags: JDK1.1 |
|
23 |
|
24 package gnu.testlet.java.io.PushbackReader; |
|
25 |
|
26 import gnu.testlet.Testlet; |
|
27 import gnu.testlet.TestHarness; |
|
28 import java.io.*; |
|
29 |
|
30 public class Unread implements Testlet |
|
31 { |
|
32 |
|
33 public void |
|
34 test(TestHarness harness) |
|
35 { |
|
36 String str = "I used to idolize my older cousin Kurt. I wanted to be\n" + |
|
37 "just like him when I was a kid. (Now we are as different as night\n" + |
|
38 "and day - but still like each other). One thing he did for a while\n" + |
|
39 "was set traps for foxes thinking he would make money off selling furs.\n" + |
|
40 "Now I never saw a fox in all my years of Southern Indiana. That\n" + |
|
41 "didn't deter us. One time we went out in the middle of winter to\n" + |
|
42 "check our traps. It was freezing and I stepped onto a frozen over\n" + |
|
43 "stream. The ice broke and I got my foot soaked. Despite the fact that\n" + |
|
44 "it made me look like a girl, I turned around and went straight home.\n" + |
|
45 "Good thing too since I couldn't even feel my foot by the time I got\n" + |
|
46 "there.\n"; |
|
47 |
|
48 try |
|
49 { |
|
50 PushbackReader prt = new PushbackReader( |
|
51 new StringReader(str), 15); |
|
52 |
|
53 char[] read_buf1 = new char[12]; |
|
54 char[] read_buf2 = new char[12]; |
|
55 |
|
56 boolean passed = true; |
|
57 |
|
58 harness.check(prt.ready(), "ready()"); |
|
59 harness.check(!prt.markSupported(), "markSupported()"); |
|
60 |
|
61 prt.read(read_buf1); |
|
62 prt.unread(read_buf1); |
|
63 prt.read(read_buf2); |
|
64 |
|
65 for (int i = 0; i < read_buf1.length; i++) |
|
66 { |
|
67 if (read_buf1[i] != read_buf2[i]) |
|
68 throw new IOException("Re-reading bytes gave different results"); |
|
69 } |
|
70 |
|
71 prt.unread(read_buf2, 1, read_buf2.length - 1); |
|
72 prt.unread(read_buf2[0]); |
|
73 |
|
74 int chars_read, total_read = 0; |
|
75 while ((chars_read = prt.read(read_buf1)) != -1) |
|
76 { |
|
77 harness.debug(new String(read_buf1, 0, chars_read), false); |
|
78 total_read += chars_read; |
|
79 } |
|
80 |
|
81 harness.check(total_read, str.length(), "total_read == str.length()"); |
|
82 |
|
83 prt.close(); |
|
84 harness.check(true, "close()"); |
|
85 } |
|
86 catch(IOException e) |
|
87 { |
|
88 harness.debug(e); |
|
89 harness.check(false); |
|
90 } |
|
91 } |
|
92 |
|
93 } // class Unread |
|
94 |
|