@Test public void readShouldReadInputStreamCorrectlyAndShouldCloseStream() throws Exception { // Read content shorter than buffer size ... String content = "This is the way to grandma's house."; InputStream stream = new ByteArrayInputStream(content.getBytes()); InputStreamWrapper wrapper = new InputStreamWrapper(stream); assertThat(wrapper.isClosed(), is(false)); assertThat(IoUtil.read(wrapper), is(content)); assertThat(wrapper.isClosed(), is(true)); // Read content longer than buffer size ... for (int i = 0; i != 10; ++i) { content += content; // note this doubles each time! } stream = new ByteArrayInputStream(content.getBytes()); wrapper = new InputStreamWrapper(stream); assertThat(wrapper.isClosed(), is(false)); assertThat(IoUtil.read(wrapper), is(content)); assertThat(wrapper.isClosed(), is(true)); }