Broken input and output streams
-------------------------------
Key: IO-193
URL: https://issues.apache.org/jira/browse/IO-193
Project: Commons IO
Issue Type: New Feature
Components: Streams/Writers
Reporter: Jukka Zitting
Priority: Minor
Fix For: 1.5
When testing error handling in code that uses streams one needs a way to
simulate an IOException being thrown by a stream. Typically this means using a
custom stream class that throws the desired exception. To avoid having to
implement such custom classes over and over again for multiple projects, I'd
like to introduce such classes in Commons IO.
The proposed BrokenInputStream and BrokenOutputStream always throw a given
IOException from all InputStream and OutputStream methods that declare such
exceptions.
For example, the following fictional test code:
{code}
Result result = processStream(new InputStream() {
public int read() throws IOException {
throw new IOException("test");
}
});
assertEquals(PROCESSING_FAILED, result);
{code}
could be replaced with:
{code}
Result result = processStream(new BrokenInputStream());
assertEquals(PROCESSING_FAILED, result);
{code}
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