If not at the end yet and can't read any more content then can't compute the digest
Zero the downstream nbytes is a shortcut to get it to send a TS_EVENT_VCONN_WRITE_COMPLETE event
Avoid failed assert "sdk_sanity_check_iocore_structure(connp) == TS_SUCCESS" in TSVConnWrite() if the response is 304 Not Modified
Add some functional tests
Add Makefile to run all the tests
Add Makefile target to build the plugin with tsxs
Add color to test output
Wrap long comments and add the script name to the test output
Dashes make the test output easier on the eyes