1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/samples/delegatingwriter/test/org/apidesign/delegatingwriter/BufferedWriterThrowingExceptionTest.java	Sat Jun 14 09:53:03 2008 +0200
     1.3 @@ -0,0 +1,57 @@
     1.4 +
     1.5 +package org.apidesign.delegatingwriter;
     1.6 +
     1.7 +import java.io.BufferedWriter;
     1.8 +import java.io.IOException;
     1.9 +import java.io.StringWriter;
    1.10 +import java.io.Writer;
    1.11 +import org.junit.After;
    1.12 +import org.junit.Before;
    1.13 +import org.junit.Test;
    1.14 +import static org.junit.Assert.*;
    1.15 +
    1.16 +/**
    1.17 + *
    1.18 + * @author Jaroslav Tulach <jaroslav.tulach@apidesign.org>
    1.19 + */
    1.20 +public class BufferedWriterThrowingExceptionTest {
    1.21 +    private StringWriter writer;
    1.22 +    
    1.23 +    public BufferedWriterThrowingExceptionTest() {
    1.24 +    }
    1.25 +
    1.26 +    @Before
    1.27 +    public void setUp() {
    1.28 +        writer = new StringWriter();
    1.29 +    }
    1.30 +    
    1.31 +    @Test
    1.32 +    public void testBehaviourOfRealBufferInJDK() throws IOException {
    1.33 +        BufferedWriter bufferedWriter = new BufferedWriter(writer);
    1.34 +        doAppendHello(bufferedWriter, "Hello!");
    1.35 +        bufferedWriter.flush();
    1.36 +        
    1.37 +        assertEquals("Hello!", writer.toString());
    1.38 +    }
    1.39 +
    1.40 +    @Test
    1.41 +    public void testBehaviourOfBufferThatThrowsExceptionWhenAppendIsCalled() throws IOException {
    1.42 +        BufferedWriter bufferedWriter = new AltBufferedWriter(writer, AltBufferedWriter.Behaviour.THROW_EXCEPTION);
    1.43 +        doAppendHello(bufferedWriter, "Hello!");
    1.44 +        bufferedWriter.flush();
    1.45 +        
    1.46 +        assertEquals("Hello!", writer.toString());
    1.47 +    }
    1.48 +
    1.49 +
    1.50 +    private void doAppendHello(BufferedWriter bufferedWriter, CharSequence what) throws IOException {
    1.51 +        // BEGIN: writer.throw.client
    1.52 +        try {
    1.53 +            bufferedWriter.append(what);
    1.54 +        } catch (UnsupportedOperationException ex) {
    1.55 +            bufferedWriter.write(what.toString());
    1.56 +        }
    1.57 +        // END: writer.throw.client
    1.58 +    }
    1.59 +    
    1.60 +}
    1.61 \ No newline at end of file