A simpler way to test your code.
trap is simply the most dead-simple test framework you can pick up. It builds and simplifies
the already simple structure of of
tape, but is extensible like
Get started with
npm install trap
t.cb. It's really that simple. You can use the assertion framework
you already know. By default trap uses the standard node assertion library. To run the tests in
single file, just
node the file.
Like tap, we make new test blocks with the
var test = test;;
Unlike tap, you don't need to figure out when your async tests are done runnning, nor
do you need to count how many assertions you have and plan them. Instead, simply register
all of your callbacks with
var test = test;;
If you happen to prefer promises over callbacks, we support that, too! Instead of using
t.cb(), perform all of your assertions in a
.then(...) continuation and return a
promise that encompasses all of the work. Trap will wait for your promise to finish before
running the next test. If your promise fails (e.g. unhandled exception), trap will report
that as an assertion failure.
var test = test;var Q = ; // I'm using Q here, but you can use any promise-compliant library.;
To get the maximum prettiness and documentation of trap, customize
config.createTextContext to wrap your favorite assertion library. Otherwise
you can just throw exceptions like you normally do, and those will be interpreted as
assertion failures. Hopefully soon we can get plugins for all the major assertion
libraries so this will be even easier.
Trap has a command-line runner so you can run a whole suite of tests together. First, install trap globally:
npm install -g trap
Then call trap like this:
node-trap [--config /path/to/config] [path1 [path2 [...]]]
The paths may use glob features supported by minimatch.
--config defaults to
path1 defaults to
trap is already taken by a bash builtin, so overriding it by default would be a little
presumptuous. But, if you happen to not care about the builtin
trap function and you really hate typing
node-, you can disable the builtin and simultaneously enable
trap by calling:
enable -n trap
If you change your mind, you can return to the usual
trap functionality with:
Check out the examples folder.