For a code example, see test.js and test.coffee.
To activate vanish assertions, you have to call node with --expose-debug-as=debug.
node --expose-debug-as=debug test.js
Example output:
'Object ({})' (type 'Object') is still alive!
Object ({})
Array ({'0': [REFERENCE]})
Function without a name from /home/jann/gitty/node-assertvanish/test.js:16
Timer ({'repeat': 1, 'callback': [REFERENCE], 'start': [function "start"], 'stop': [function "stop"], 'again': [function "again"]})
/home/jann/gitty/node-assertvanish/index.js:19
throw "unfullfilled vanish assertion";
^
unfullfilled vanish assertion
cake build