$ browserify example/test.js | testling
TAP version 13
# beep boop
ok 1 should be equal
ok 2 (unnamed assert)
1..2
# tests 2
# pass  2
# ok

$ testling

usage: testling {DIRECTORY|-} {OPTIONS}
If there (is no DIRECTORY and stdin is a tty) or the DIRECTORY is "-",
javascript will be read from stdin and executed.
Otherwise, DIRECTORY (or the $CWD) will be checked for a package.json with a
testling field.
OPTIONS are:
     --html  Instead of launching a server, show the generated html.
  --no-show  Don't render the console.log() output to the document body.
         -u  Instead of launching a browser, print the url to visit so you can
             open the browser yourself.
         -x  Launch a browser with an explicit command. By default, chrome or
             firefox is launched by searching your $PATH.
     --host  Set up the testling url on a specific hostname. Default: localhost
     --port  Set up the testling url on a specific port

$ browserify -t coverify test.js | testling | coverify
TAP version 13
# beep boop
ok 1 should be equal
1..1
# tests 1
# pass  1
# ok
# /home/substack/projects/coverify/example/test.js: line 7, column 16-28
  if (err) deadCode();
           ^^^^^^^^^^^
# /home/substack/projects/coverify/example/foo.js: line 3, column 35-48
  if (i++ === 10 || (false && neverFires())) {
                              ^^^^^^^^^^^^

npm install -g browserify

npm install -g testling