@Test
public void readBytesShouldReadInputStreamCorrectlyAndShouldCloseStream() 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));
byte[] bytes = IoUtil.readBytes(wrapper);
String output = new String(bytes);
assertThat(output, 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));
bytes = IoUtil.readBytes(wrapper);
output = new String(bytes);
assertThat(output, is(content));
assertThat(wrapper.isClosed(), is(true));
}
@Test
public void readBytesShouldReturnEmptyByteArrayForNullInputStream() throws Exception {
assertThat(IoUtil.readBytes((InputStream) null), is(new byte[] {}));
}