public void testWriteTo() throws Exception {
String s = "Message content";
byte[] bytes = s.getBytes(HTTP.ISO_8859_1);
StringEntity httpentity = new StringEntity(s);
HttpEntityWrapper wrapped = new HttpEntityWrapper(httpentity);
ByteArrayOutputStream out = new ByteArrayOutputStream();
wrapped.writeTo(out);
byte[] bytes2 = out.toByteArray();
assertNotNull(bytes2);
assertEquals(bytes.length, bytes2.length);
for (int i = 0; i < bytes.length; i++) {
assertEquals(bytes[i], bytes2[i]);
}
out = new ByteArrayOutputStream();
wrapped.writeTo(out);
bytes2 = out.toByteArray();
assertNotNull(bytes2);
assertEquals(bytes.length, bytes2.length);
for (int i = 0; i < bytes.length; i++) {
assertEquals(bytes[i], bytes2[i]);
}
try {
wrapped.writeTo(null);
fail("IllegalArgumentException should have been thrown");
} catch (IllegalArgumentException ex) {
// expected
}
}
@Override
public void writeTo(final OutputStream outstream) throws IOException {
Args.notNull(outstream, "Output stream");
if (this.buffer != null) {
outstream.write(this.buffer);
} else {
super.writeTo(outstream);
}
}