Test runner based on Tape and Browserify

npm install prova
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Node & Browser Test runner based on Tape and Browserify.

Screencasts: node.gif, browser.gif, both.gif

Features and screenshots:


$ npm install prova


Example test:

var test = require('prova')

test('timing test', function (t) {

  t.equal(typeof, 'function')
  var start =

  setTimeout(function () {
    t.equal( - start, 100)
  }, 100)

In Node, it will output:

$ node test.js
Passed 1 test.

Or, in case it fails:

In Browser

To run the tests in a web browser, just pass -b parameter:

$ node test.js -b
Visit localhost:7559 with a browser to start running the tests.

Then visit localhost:7559 in your web browser:

In case it fails, it'll show:

The web app uses watchify to monitor file changes. So, you won't have to reload the page when you modify a source code.

Prova runs the tests inside of an iframe. In case you test some UI stuff, you can open the iframe by clicking the < button on the right:

Just like the command-line tool, you can grep some specific tests to run, too:

Multiple Tests

Prova comes with a command-line script when you install it globally;

$ npm install -g prova

And it allows you running multiple tests on both Node and browser;

$ prova test/foo.js test/bar.js
$ prova test/**/*.js -b

Launching Browsers and Headless Testing

List the detected browsers;

$ prova -l
Available Browsers: safari v7.0.2, chrome v34.0.1847.116, phantom v1.9.7

And launch after publishing the tests:

$ prova -b -l safari

If your system has Xvfb, you can pass -e parameter to open the browser headlessly:

$ prova -b -l chrome -e

Or you can just run the tests on PhantomJS:

$ prova -b -l phantom

If you get no matches for errors and you think that your system has that browser, try removing browser-launcher's config:

$ rm /Users/azer/.config/browser-launcher/config.json



        prova [filenames] [options]


        -g     --grep       Run tests matching with given pattern

        -b     --browser    Publishes the tests on
        -o     --port       Publish the tests on given port number.
        -d     --hostname   Publih the tests on given hostname.
        -l     --launch     List available browsers to launch or launch specified browser.
        -h     --headless   Launch the browser headlessly.
        -r     --proxy      Launch the browser with specified proxy configuration.

        -v     --version    Show version and exit
        -h     --help       Show help and exit


        1. Run the tests on NodeJS.

           $ node test.js
           $ node test
           $ prova test/index.js
           $ prova

           All the above example commands will work same way. Prova assumes the filename of your test is either `test.js` or `test/index.js`

       2. Publish the tests on localhost:7559, so you can run the tests on a web browser.

          $ node test.js -b
          $ prova test -b
          $ prova -b

       3. Publish the tests on given host and port.

          $ node test.js -o 8080 -d
          $ prova test.js -p 8080 -d

       4. Publish the tests and launch a browser to automatically run the tests.

          $ node test.js -b -l chrome
          $ prova test.js -b -l chrome

       5. List the browsers that can be launched automatically.

          $ prova -l
          $ node test.js -l

       6. Run the tests with PhantomJS.

          $ node test.js -b -l phantom
          $ prova test.js -b -l phantom

       7. Run only specified tests with PhantomJS.

          $ node test.js -b -l phantom -g pattern
          $ prova test.js -b -l phantom -g pattern
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