@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));
}
@Test
public void readShouldReadReaderCorrectlyAndShouldCloseStream() throws Exception {
// Read content shorter than buffer size ...
String content = "This is the way to grandma's house.";
Reader reader = new StringReader(content);
ReaderWrapper wrapper = new ReaderWrapper(reader);
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!
}
reader = new StringReader(content);
wrapper = new ReaderWrapper(reader);
assertThat(wrapper.isClosed(), is(false));
assertThat(IoUtil.read(wrapper), is(content));
assertThat(wrapper.isClosed(), is(true));
}
/**
* Read and return the entire contents of the supplied {@link InputStream}. This method always
* closes the stream when finished reading.
*
* @param stream the streamed contents; may be null
* @return the contents, or an empty string if the supplied stream is null
* @throws IOException if there is an error reading the content
*/
public static String read(InputStream stream) throws IOException {
return IoUtil.read(stream);
}
/**
* Read and return the entire contents of the supplied {@link Reader}. This method always closes
* the reader when finished reading.
*
* @param reader the reader of the contents; may be null
* @return the contents, or an empty string if the supplied reader is null
* @throws IOException if there is an error reading the content
*/
public static String read(Reader reader) throws IOException {
return IoUtil.read(reader);
}
@Test
public void readShouldReturnEmptyStringForNullReader() throws Exception {
assertThat(IoUtil.read((Reader) null), is(""));
}
@Test
public void readShouldReturnEmptyStringForNullInputStream() throws Exception {
assertThat(IoUtil.read((InputStream) null), is(""));
}
