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1 package com.mockobjects.servlet;
2
3 import java.io.ByteArrayOutputStream  ;
4 import java.io.IOException ;
5 import javax.servlet.ServletOutputStream ;
6 import com.mockobjects.ExpectationCounter;
7 import com.mockobjects.ExpectationValue;
8
9 public class MockServletOutputStream extends ServletOutputStream {
10 private ExpectationValue myWriteCalled = new ExpectationValue("MockServletOutputStream.write()");
11 private boolean myThrowException = false;
12 private ExpectationCounter myCloseCallCount = new ExpectationCounter("MockServletOutputstream.close()");
13 private ByteArrayOutputStream myBuffer;
14
15 public MockServletOutputStream() {
16 super();
17 setupClearContents();
18 }
19
20 public void setExpectedCloseCalls(int closeCall) {
21 myCloseCallCount.setExpected(closeCall);
22 }
23
24 public void setExpectingWriteCalls(boolean expectingWriteCall) {
25 myWriteCalled.setExpected(expectingWriteCall);
26 }
27
28 public void setThrowIOException(boolean throwException) {
29 myThrowException = throwException;
30 }
31
32 public void close() throws IOException {
33 myCloseCallCount.inc();
34 }
35
36 public String toString() {
37 return getContents();
38 }
39
40 public void write(int b) throws IOException {
41 myWriteCalled.setActual(true);
42 if (myThrowException)
43 throw new IOException ("Test IOException generated by request");
44 myBuffer.write(b);
45 }
46
47 public void setupClearContents () {
48 myBuffer = new ByteArrayOutputStream ();
49 }
50
51 public String getContents() {
52 return myBuffer.toString();
53 }
54
55 public void verify() {
56 myWriteCalled.verify();
57 myCloseCallCount.verify();
58 }
59 }
60
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Java API By Example, From Geeks To Geeks.