|
1 package com.mockobjects.io;
2
3 import java.io.*;
4
5 import junit.framework.*;
6
7 import com.mockobjects.*;
8
9 public class MockFileInputStream extends FileInputStream {
10 public static final String  KNOWN_FILE = "c:\\autoexec.bat";
11
12 private String myContents = "";
13 private int myIndex = 0;
14
15 private MockFileInputStream() throws FileNotFoundException {
16 super(KNOWN_FILE);
19 }
20
21 public static MockFileInputStream newMockFileInputStream(){
22 try {
23 return new MockFileInputStream();
24 } catch (FileNotFoundException e) {
25 throw new AssertionFailedError("couldn't create MockFileInputStream (requires known file: " + KNOWN_FILE +") "+e);
26 }
27 }
28
29 public int available() throws IOException {
30 return myContents.length();
31 }
32 public void mark(int readlimit) {
33 MockObject.notYetImplemented("MockFileInputStream.mark");
34 }
35 public int read() throws IOException {
36 if (myIndex == myContents.length())
37 return -1;
38 return myContents.charAt(myIndex++);
39 }
40 public int read(byte b[]) throws IOException {
41 if (myIndex == myContents.length())
42 return -1;
43
44 for (int i = 0; i < myContents.length(); i++) {
45 b[i] = (byte) read();
46 }
47 return myContents.length();
48 }
49 public int read(byte b[], int off, int len) throws IOException {
50 if (myIndex == myContents.length())
51 return -1;
52
53 int bytesRead = 0;
54 for (int i = off; i < len; i++) {
55 b[i] = (byte) myContents.charAt(myIndex);
56 bytesRead++;
57 myIndex++;
58 if (myIndex == myContents.length()) {
59 break;
60 }
61 }
62 return bytesRead;
63 }
64 public void setupContents(String contents) {
65 myContents = contents;
66 myIndex = 0;
67 }
68 public long skip(long n) throws IOException {
69 MockObject.notYetImplemented("MockFileInputStream.skip");
70 return -1;
71 }
72 }
73 |
Popular Tags |
Java API By Example, From Geeks To Geeks.