/** * Tests a <code>BoundedReader</code> operating in bounded mode. * * @throws IOException should not happen */ @Test public void testBoundedReaderWithoutException() throws IOException { BoundedReader br = new BoundedReader(new CharArrayReader(TEST_CHARACTERS), 4); prepareBoundedReader(br); assert -1 == br.read(); assert -1 == br.read(new char[1]); assert -1 == br.read(new char[1], 0, 1); assert -1 == br.skip(1); assert 4 == br.getReadCounter(); assert 0 == br.getRemainingCharacters(); assert 4 == br.getAllowedCharacters(); // Attempt to read a chunk larger than the remaining characters and assert that it does not return -1 br = new BoundedReader(new CharArrayReader(TEST_CHARACTERS), 4); assert br.read(new char[6])!=-1; }
try { br.skip(1); } catch(StreamOutOfBoundException e) { exceptionThrown = true; }
/** * Performs some tests that are common to {@link #testBoundedReaderWithException()} and * {@link #testBoundedReaderWithoutException()}. * * @param br the BoundedReader to prepare * @throws IOException should not happen */ private void prepareBoundedReader(BoundedReader br) throws IOException { assert 0 == br.getReadCounter(); assert 4 == br.getRemainingCharacters(); assert 4 == br.getAllowedCharacters(); assert br.read()!=-1; assert 1 == br.getReadCounter(); assert 3 == br.getRemainingCharacters(); assert 4 == br.getAllowedCharacters(); assert br.read(new char[1])!=-1; assert 2 == br.getReadCounter(); assert 2 == br.getRemainingCharacters(); assert 4 == br.getAllowedCharacters(); assert br.read(new char[1], 0, 1)!=-1; assert 3 == br.getReadCounter(); assert 1 == br.getRemainingCharacters(); assert 4 == br.getAllowedCharacters(); assert br.skip(1)!=-1; assert 4 == br.getReadCounter(); assert 0 == br.getRemainingCharacters(); assert 4 == br.getAllowedCharacters(); }